- Kernel - mailweb.openeuler.org

[PATCH openEuler-1.0-LTS 1/3] dm verity: add root hash pkcs#7 signature verification
by Yongqiang Liu 30 Jul '22

30 Jul '22

From: Jaskaran Khurana <jaskarankhurana(a)linux.microsoft.com> mainline inclusion from mainline-v5.4-rc1 commit 88cd3e6cfac915f50f7aa7b699bdf053afec866e category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5CES3 CVE: NA -------------------------------- The verification is to support cases where the root hash is not secured by Trusted Boot, UEFI Secureboot or similar technologies. One of the use cases for this is for dm-verity volumes mounted after boot, the root hash provided during the creation of the dm-verity volume has to be secure and thus in-kernel validation implemented here will be used before we trust the root hash and allow the block device to be created. The signature being provided for verification must verify the root hash and must be trusted by the builtin keyring for verification to succeed. The hash is added as a key of type "user" and the description is passed to the kernel so it can look it up and use it for verification. Adds CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG which can be turned on if root hash verification is needed. Kernel commandline dm_verity module parameter 'require_signatures' will indicate whether to force root hash signature verification (for all dm verity volumes). Signed-off-by: Jaskaran Khurana <jaskarankhurana(a)linux.microsoft.com> Tested-and-Reviewed-by: Milan Broz <gmazyland(a)gmail.com> Signed-off-by: Mike Snitzer <snitzer(a)redhat.com> Conflicts: Documentation/admin-guide/device-mapper/verity.rst drivers/md/dm-verity-target.c Signed-off-by: Luo Meng <luomeng12(a)huawei.com> Reviewed-by: Jason Yan <yanaijie(a)huawei.com> Signed-off-by: Yongqiang Liu <liuyongqiang13(a)huawei.com> --- drivers/md/Kconfig | 12 +++ drivers/md/Makefile | 4 + drivers/md/dm-verity-target.c | 43 ++++++++-- drivers/md/dm-verity-verify-sig.c | 133 ++++++++++++++++++++++++++++++ drivers/md/dm-verity-verify-sig.h | 60 ++++++++++++++ drivers/md/dm-verity.h | 2 + 6 files changed, 249 insertions(+), 5 deletions(-) create mode 100644 drivers/md/dm-verity-verify-sig.c create mode 100644 drivers/md/dm-verity-verify-sig.h diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 8b8c123cae66..6d052c11d66d 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -479,6 +479,18 @@ config DM_VERITY If unsure, say N. +config DM_VERITY_VERIFY_ROOTHASH_SIG + def_bool n + bool "Verity data device root hash signature verification support" + depends on DM_VERITY + select SYSTEM_DATA_VERIFICATION + help + Add ability for dm-verity device to be validated if the + pre-generated tree of cryptographic checksums passed has a pkcs#7 + signature file that can validate the roothash of the tree. + + If unsure, say N. + config DM_VERITY_FEC bool "Verity forward error correction support" depends on DM_VERITY diff --git a/drivers/md/Makefile b/drivers/md/Makefile index 822f4e8753bc..32d6d6e4a756 100644 --- a/drivers/md/Makefile +++ b/drivers/md/Makefile @@ -76,3 +76,7 @@ endif ifeq ($(CONFIG_DM_VERITY_FEC),y) dm-verity-objs += dm-verity-fec.o endif + +ifeq ($(CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG),y) +dm-verity-objs += dm-verity-verify-sig.o +endif diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c index ca6acc1b20ae..246593cd8fd2 100644 --- a/drivers/md/dm-verity-target.c +++ b/drivers/md/dm-verity-target.c @@ -16,7 +16,7 @@ #include "dm-verity.h" #include "dm-verity-fec.h" - +#include "dm-verity-verify-sig.h" #include <linux/module.h> #include <linux/reboot.h> @@ -34,7 +34,8 @@ #define DM_VERITY_OPT_IGN_ZEROES "ignore_zero_blocks" #define DM_VERITY_OPT_AT_MOST_ONCE "check_at_most_once" -#define DM_VERITY_OPTS_MAX (3 + DM_VERITY_OPTS_FEC) +#define DM_VERITY_OPTS_MAX (3 + DM_VERITY_OPTS_FEC + \ + DM_VERITY_ROOT_HASH_VERIFICATION_OPTS) static unsigned dm_verity_prefetch_cluster = DM_VERITY_DEFAULT_PREFETCH_SIZE; @@ -738,6 +739,8 @@ static void verity_status(struct dm_target *ti, status_type_t type, args++; if (v->validated_blocks) args++; + if (v->signature_key_desc) + args += DM_VERITY_ROOT_HASH_VERIFICATION_OPTS; if (!args) return; DMEMIT(" %u", args); @@ -759,6 +762,9 @@ static void verity_status(struct dm_target *ti, status_type_t type, if (v->validated_blocks) DMEMIT(" " DM_VERITY_OPT_AT_MOST_ONCE); sz = verity_fec_status_table(v, sz, result, maxlen); + if (v->signature_key_desc) + DMEMIT(" " DM_VERITY_ROOT_HASH_VERIFICATION_OPT_SIG_KEY + " %s", v->signature_key_desc); break; } } @@ -824,6 +830,8 @@ static void verity_dtr(struct dm_target *ti) verity_fec_dtr(v); + kfree(v->signature_key_desc); + kfree(v); } @@ -879,7 +887,8 @@ static int verity_alloc_zero_digest(struct dm_verity *v) return r; } -static int verity_parse_opt_args(struct dm_arg_set *as, struct dm_verity *v) +static int verity_parse_opt_args(struct dm_arg_set *as, struct dm_verity *v, + struct dm_verity_sig_opts *verify_args) { int r; unsigned argc; @@ -928,6 +937,14 @@ static int verity_parse_opt_args(struct dm_arg_set *as, struct dm_verity *v) if (r) return r; continue; + } else if (verity_verify_is_sig_opt_arg(arg_name)) { + r = verity_verify_sig_parse_opt_args(as, v, + verify_args, + &argc, arg_name); + if (r) + return r; + continue; + } ti->error = "Unrecognized verity feature request"; @@ -954,6 +971,7 @@ static int verity_parse_opt_args(struct dm_arg_set *as, struct dm_verity *v) static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv) { struct dm_verity *v; + struct dm_verity_sig_opts verify_args = {0}; struct dm_arg_set as; unsigned int num; unsigned long long num_ll; @@ -961,6 +979,7 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv) int i; sector_t hash_position; char dummy; + char *root_hash_digest_to_validate; v = kzalloc(sizeof(struct dm_verity), GFP_KERNEL); if (!v) { @@ -1085,6 +1104,7 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv) r = -EINVAL; goto bad; } + root_hash_digest_to_validate = argv[8]; if (strcmp(argv[9], "-")) { v->salt_size = strlen(argv[9]) / 2; @@ -1110,11 +1130,20 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv) as.argc = argc; as.argv = argv; - r = verity_parse_opt_args(&as, v); + r = verity_parse_opt_args(&as, v, &verify_args); if (r < 0) goto bad; } + /* Root hash signature is a optional parameter*/ + r = verity_verify_root_hash(root_hash_digest_to_validate, + strlen(root_hash_digest_to_validate), + verify_args.sig, + verify_args.sig_size); + if (r < 0) { + ti->error = "Root hash verification failed"; + goto bad; + } v->hash_per_block_bits = __fls((1 << v->hash_dev_block_bits) / v->digest_size); @@ -1180,9 +1209,13 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv) ti->per_io_data_size = roundup(ti->per_io_data_size, __alignof__(struct dm_verity_io)); + verity_verify_sig_opts_cleanup(&verify_args); + return 0; bad: + + verity_verify_sig_opts_cleanup(&verify_args); verity_dtr(ti); return r; @@ -1190,7 +1223,7 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv) static struct target_type verity_target = { .name = "verity", - .version = {1, 4, 0}, + .version = {1, 5, 0}, .module = THIS_MODULE, .ctr = verity_ctr, .dtr = verity_dtr, diff --git a/drivers/md/dm-verity-verify-sig.c b/drivers/md/dm-verity-verify-sig.c new file mode 100644 index 000000000000..614e43db93aa --- /dev/null +++ b/drivers/md/dm-verity-verify-sig.c @@ -0,0 +1,133 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2019 Microsoft Corporation. + * + * Author: Jaskaran Singh Khurana <jaskarankhurana(a)linux.microsoft.com> + * + */ +#include <linux/device-mapper.h> +#include <linux/verification.h> +#include <keys/user-type.h> +#include <linux/module.h> +#include "dm-verity.h" +#include "dm-verity-verify-sig.h" + +#define DM_VERITY_VERIFY_ERR(s) DM_VERITY_ROOT_HASH_VERIFICATION " " s + +static bool require_signatures; +module_param(require_signatures, bool, false); +MODULE_PARM_DESC(require_signatures, + "Verify the roothash of dm-verity hash tree"); + +#define DM_VERITY_IS_SIG_FORCE_ENABLED() \ + (require_signatures != false) + +bool verity_verify_is_sig_opt_arg(const char *arg_name) +{ + return (!strcasecmp(arg_name, + DM_VERITY_ROOT_HASH_VERIFICATION_OPT_SIG_KEY)); +} + +static int verity_verify_get_sig_from_key(const char *key_desc, + struct dm_verity_sig_opts *sig_opts) +{ + struct key *key; + const struct user_key_payload *ukp; + int ret = 0; + + key = request_key(&key_type_user, + key_desc, NULL); + if (IS_ERR(key)) + return PTR_ERR(key); + + down_read(&key->sem); + + ukp = user_key_payload_locked(key); + if (!ukp) { + ret = -EKEYREVOKED; + goto end; + } + + sig_opts->sig = kmalloc(ukp->datalen, GFP_KERNEL); + if (!sig_opts->sig) { + ret = -ENOMEM; + goto end; + } + sig_opts->sig_size = ukp->datalen; + + memcpy(sig_opts->sig, ukp->data, sig_opts->sig_size); + +end: + up_read(&key->sem); + key_put(key); + + return ret; +} + +int verity_verify_sig_parse_opt_args(struct dm_arg_set *as, + struct dm_verity *v, + struct dm_verity_sig_opts *sig_opts, + unsigned int *argc, + const char *arg_name) +{ + struct dm_target *ti = v->ti; + int ret = 0; + const char *sig_key = NULL; + + if (!*argc) { + ti->error = DM_VERITY_VERIFY_ERR("Signature key not specified"); + return -EINVAL; + } + + sig_key = dm_shift_arg(as); + (*argc)--; + + ret = verity_verify_get_sig_from_key(sig_key, sig_opts); + if (ret < 0) + ti->error = DM_VERITY_VERIFY_ERR("Invalid key specified"); + + v->signature_key_desc = kstrdup(sig_key, GFP_KERNEL); + if (!v->signature_key_desc) + return -ENOMEM; + + return ret; +} + +/* + * verify_verify_roothash - Verify the root hash of the verity hash device + * using builtin trusted keys. + * + * @root_hash: For verity, the roothash/data to be verified. + * @root_hash_len: Size of the roothash/data to be verified. + * @sig_data: The trusted signature that verifies the roothash/data. + * @sig_len: Size of the signature. + * + */ +int verity_verify_root_hash(const void *root_hash, size_t root_hash_len, + const void *sig_data, size_t sig_len) +{ + int ret; + + if (!root_hash || root_hash_len == 0) + return -EINVAL; + + if (!sig_data || sig_len == 0) { + if (DM_VERITY_IS_SIG_FORCE_ENABLED()) + return -ENOKEY; + else + return 0; + } + + ret = verify_pkcs7_signature(root_hash, root_hash_len, sig_data, + sig_len, NULL, VERIFYING_UNSPECIFIED_SIGNATURE, + NULL, NULL); + + return ret; +} + +void verity_verify_sig_opts_cleanup(struct dm_verity_sig_opts *sig_opts) +{ + kfree(sig_opts->sig); + sig_opts->sig = NULL; + sig_opts->sig_size = 0; +} diff --git a/drivers/md/dm-verity-verify-sig.h b/drivers/md/dm-verity-verify-sig.h new file mode 100644 index 000000000000..19b1547aa741 --- /dev/null +++ b/drivers/md/dm-verity-verify-sig.h @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2019 Microsoft Corporation. + * + * Author: Jaskaran Singh Khurana <jaskarankhurana(a)linux.microsoft.com> + * + */ +#ifndef DM_VERITY_SIG_VERIFICATION_H +#define DM_VERITY_SIG_VERIFICATION_H + +#define DM_VERITY_ROOT_HASH_VERIFICATION "DM Verity Sig Verification" +#define DM_VERITY_ROOT_HASH_VERIFICATION_OPT_SIG_KEY "root_hash_sig_key_desc" + +struct dm_verity_sig_opts { + unsigned int sig_size; + u8 *sig; +}; + +#ifdef CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG + +#define DM_VERITY_ROOT_HASH_VERIFICATION_OPTS 2 + +int verity_verify_root_hash(const void *data, size_t data_len, + const void *sig_data, size_t sig_len); +bool verity_verify_is_sig_opt_arg(const char *arg_name); + +int verity_verify_sig_parse_opt_args(struct dm_arg_set *as, struct dm_verity *v, + struct dm_verity_sig_opts *sig_opts, + unsigned int *argc, const char *arg_name); + +void verity_verify_sig_opts_cleanup(struct dm_verity_sig_opts *sig_opts); + +#else + +#define DM_VERITY_ROOT_HASH_VERIFICATION_OPTS 0 + +int verity_verify_root_hash(const void *data, size_t data_len, + const void *sig_data, size_t sig_len) +{ + return 0; +} + +bool verity_verify_is_sig_opt_arg(const char *arg_name) +{ + return false; +} + +int verity_verify_sig_parse_opt_args(struct dm_arg_set *as, struct dm_verity *v, + struct dm_verity_sig_opts *sig_opts, + unsigned int *argc, const char *arg_name) +{ + return -EINVAL; +} + +void verity_verify_sig_opts_cleanup(struct dm_verity_sig_opts *sig_opts) +{ +} + +#endif /* CONFIG_DM_VERITY_VERIFY_ROOTHASH_SIG */ +#endif /* DM_VERITY_SIG_VERIFICATION_H */ diff --git a/drivers/md/dm-verity.h b/drivers/md/dm-verity.h index 3441c10b840c..42183a3903ae 100644 --- a/drivers/md/dm-verity.h +++ b/drivers/md/dm-verity.h @@ -64,6 +64,8 @@ struct dm_verity { struct dm_verity_fec *fec; /* forward error correction */ unsigned long *validated_blocks; /* bitset blocks validated */ + + char *signature_key_desc; /* signature keyring reference */ }; struct dm_verity_io { -- 2.25.1

1 2

[PATCH openEuler-22.09 00/67] backport from mainline
by Zheng Zengkai 29 Jul '22

29 Jul '22

v2: 1. full test in this branch. 2. correct implict declare function in arch/arm64/kvm/hyp/include/hyp/switch.h. v1: backport from mainline Alexandru Elisei (1): arm64: Do not trap PMSNEVFR_EL1 Marc Zyngier (10): KVM: arm64: Let vcpu_sve_pffr() handle HYP VAs KVM: arm64: Provide KVM's own save/restore SVE primitives KVM: arm64: Use {read,write}_sysreg_el1 to access ZCR_EL1 KVM: arm64: Introduce vcpu_sve_vq() helper arm64: sve: Provide a conditional update accessor for ZCR_ELx KVM: arm64: Map SVE context at EL2 when available KVM: arm64: Rework SVE host-save/guest-restore KVM: arm64: Save guest's ZCR_EL1 before saving the FPSIMD state KVM: arm64: Save/restore SVE state for nVHE KVM: arm64: Always start with clearing SME flag on load Mark Brown (54): arm64/sve: Remove redundant system_supports_sve() tests arm64/sve: Add compile time checks for SVE hooks in generic functions arm64/sve: Rework SVE access trap to convert state in registers arm64/sve: Split _sve_flush macro into separate Z and predicate flushes arm64/sve: Skip flushing Z registers with 128 bit vectors arm64/sve: Use the sve_flush macros in sve_load_from_fpsimd_state() arm64/sve: Remove sve_load_from_fpsimd_state() arm64/sve: Better handle failure to allocate SVE register storage arm64/fp: Reindent fpsimd_save() arm64/sve: Make access to FFR optional arm64/sve: Rename find_supported_vector_length() arm64/sve: Use accessor functions for vector lengths in thread_struct arm64/sve: Put system wide vector length information into structs arm64/sve: Explicitly load vector length when restoring SVE state arm64/sve: Track vector lengths for tasks in an array arm64/sve: Make sysctl interface for SVE reusable by SME arm64/sve: Generalise vector length configuration prctl() for SME arm64/sve: Minor clarification of ABI documentation arm64: cpufeature: Always specify and use a field width for capabilities arm64/sme: Provide ABI documentation for SME arm64/sme: System register and exception syndrome definitions arm64/sme: Manually encode SME instructions arm64: Disable fine grained traps on boot arm64/sme: Early CPU setup for SME arm64/sme: Basic enumeration support arm64/sme: Identify supported SME vector lengths at boot arm64/sme: Implement sysctl to set the default vector length arm64/sme: Implement vector length configuration prctl()s arm64/sme: Implement support for TPIDR2 arm64/sme: Implement SVCR context switching arm64/sme: Implement streaming SVE context switching arm64/sme: Implement ZA context switching arm64/sme: Implement traps and syscall handling for SME arm64/sme: Disable ZA and streaming mode when handling signals arm64/sme: Implement streaming SVE signal handling arm64/sme: Implement ZA signal handling arm64/sme: Implement ptrace support for streaming mode SVE registers arm64/sme: Add ptrace support for ZA arm64/sme: Disable streaming mode and ZA when flushing CPU state arm64/sme: Save and restore streaming mode over EFI runtime calls arm64/sme: Provide Kconfig for SME arm64/sme: Add ID_AA64SMFR0_EL1 to __read_sysreg_by_encoding() arm64/sme: More sensibly define the size for the ZA register set KVM: arm64: Hide SME system registers from guests KVM: arm64: Trap SME usage in guest KVM: arm64: Handle SME host state when running guests arm64/fp: Make SVE and SME length register definition match architecture arm64/fp: Rename SVE and SME LEN field name to _WIDTH arm64/sme: Drop SYS_ from SMIDR_EL1 defines arm64/sme: Standardise bitfield names for SVCR arm64/sme: Remove _EL0 from name of SVCR - FIXME sysreg.h arm64/sme: Fix tests for 0b1111 value ID registers arm64/sme: Fix SVE/SME typo in ABI documentation arm64/sme: Fix EFI save/restore Wan Jiabing (1): arm64/sme: Fix NULL check after kzalloc Xiaofei Tan (1): arm64: sve: Provide sve_cond_update_zcr_vq fallback when !ARM64_SVE Documentation/arm64/elf_hwcaps.rst | 34 + Documentation/arm64/index.rst | 1 + Documentation/arm64/sme.rst | 428 ++++++++++ Documentation/arm64/sve.rst | 72 +- arch/arm64/Kconfig | 11 + arch/arm64/include/asm/cpu.h | 4 + arch/arm64/include/asm/cpucaps.h | 2 + arch/arm64/include/asm/cpufeature.h | 25 + arch/arm64/include/asm/esr.h | 13 +- arch/arm64/include/asm/exception.h | 1 + arch/arm64/include/asm/fpsimd.h | 262 ++++++- arch/arm64/include/asm/fpsimdmacros.h | 108 ++- arch/arm64/include/asm/hwcap.h | 8 + arch/arm64/include/asm/kvm_arm.h | 1 + arch/arm64/include/asm/kvm_host.h | 12 +- arch/arm64/include/asm/kvm_hyp.h | 2 + arch/arm64/include/asm/processor.h | 78 +- arch/arm64/include/asm/signal_common.h | 19 +- arch/arm64/include/asm/sysreg.h | 78 +- arch/arm64/include/asm/thread_info.h | 4 +- arch/arm64/include/uapi/asm/hwcap.h | 8 + arch/arm64/include/uapi/asm/ptrace.h | 69 +- arch/arm64/include/uapi/asm/sigcontext.h | 55 +- arch/arm64/kernel/cpufeature.c | 280 +++++-- arch/arm64/kernel/cpuinfo.c | 13 + arch/arm64/kernel/entry-common.c | 11 + arch/arm64/kernel/entry-fpsimd.S | 72 +- arch/arm64/kernel/fpsimd.c | 944 ++++++++++++++++++----- arch/arm64/kernel/head.S | 87 +++ arch/arm64/kernel/process.c | 45 +- arch/arm64/kernel/ptrace.c | 373 +++++++-- arch/arm64/kernel/signal.c | 175 ++++- arch/arm64/kernel/syscall.c | 29 +- arch/arm64/kernel/traps.c | 1 + arch/arm64/kvm/fpsimd.c | 70 +- arch/arm64/kvm/guest.c | 6 +- arch/arm64/kvm/hyp/fpsimd.S | 12 + arch/arm64/kvm/hyp/include/hyp/switch.h | 75 +- arch/arm64/kvm/hyp/nvhe/switch.c | 38 +- arch/arm64/kvm/hyp/vhe/switch.c | 10 +- arch/arm64/kvm/reset.c | 14 +- arch/arm64/kvm/sys_regs.c | 8 +- include/uapi/linux/elf.h | 2 + include/uapi/linux/prctl.h | 9 + kernel/sys.c | 12 + 45 files changed, 3123 insertions(+), 458 deletions(-) create mode 100644 Documentation/arm64/sme.rst -- 2.20.1

1 67

[PATCH openEuler-1.0-LTS] jbd2: Fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted
by Yongqiang Liu 28 Jul '22

28 Jul '22

From: Zhihao Cheng <chengzhihao1(a)huawei.com> hulk inclusion category: bugfix bugzilla: 187185, https://gitee.com/openeuler/kernel/issues/I5JAOC CVE: NA -------------------------------- Following process will fail assertion 'jh->b_frozen_data == NULL' in jbd2_journal_dirty_metadata(): jbd2_journal_commit_transaction unlink(dir/a) jh->b_transaction = trans1 jh->b_jlist = BJ_Metadata journal->j_running_transaction = NULL trans1->t_state = T_COMMIT unlink(dir/b) handle->h_trans = trans2 do_get_write_access jh->b_modified = 0 jh->b_frozen_data = frozen_buffer jh->b_next_transaction = trans2 jbd2_journal_dirty_metadata is_handle_aborted is_journal_aborted // return false --> jbd2 abort <-- while (commit_transaction->t_buffers) if (is_journal_aborted) jbd2_journal_refile_buffer __jbd2_journal_refile_buffer WRITE_ONCE(jh->b_transaction, jh->b_next_transaction) WRITE_ONCE(jh->b_next_transaction, NULL) __jbd2_journal_file_buffer(jh, BJ_Reserved) J_ASSERT_JH(jh, jh->b_frozen_data == NULL) // assertion failure ! The reproducer (See detail in [Link]) reports: ------------[ cut here ]------------ kernel BUG at fs/jbd2/transaction.c:1629! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 2 PID: 584 Comm: unlink Tainted: G W 5.19.0-rc6-00115-g4a57a8400075-dirty #697 RIP: 0010:jbd2_journal_dirty_metadata+0x3c5/0x470 RSP: 0018:ffffc90000be7ce0 EFLAGS: 00010202 Call Trace: <TASK> __ext4_handle_dirty_metadata+0xa0/0x290 ext4_handle_dirty_dirblock+0x10c/0x1d0 ext4_delete_entry+0x104/0x200 __ext4_unlink+0x22b/0x360 ext4_unlink+0x275/0x390 vfs_unlink+0x20b/0x4c0 do_unlinkat+0x42f/0x4c0 __x64_sys_unlink+0x37/0x50 do_syscall_64+0x35/0x80 After journal aborting, __jbd2_journal_refile_buffer() is executed with holding @jh->b_state_lock, we can fix it by moving 'is_handle_aborted()' into the area protected by @jh->b_state_lock. Link: https://bugzilla.kernel.org/show_bug.cgi?id=216251 Fixes: 470decc613ab20 ("[PATCH] jbd2: initial copy of files from jbd") Conflicts: fs/jbd2/transaction.c [ 464170647b56("jbd2: Make state lock a spinlock") is not applied. ] Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> Signed-off-by: Yongqiang Liu <liuyongqiang13(a)huawei.com> --- fs/jbd2/transaction.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c index f56be34564e7..3b31bd1f7b77 100644 --- a/fs/jbd2/transaction.c +++ b/fs/jbd2/transaction.c @@ -1410,8 +1410,6 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh) struct journal_head *jh; int ret = 0; - if (is_handle_aborted(handle)) - return -EROFS; if (!buffer_jbd(bh)) return -EUCLEAN; @@ -1458,6 +1456,18 @@ int jbd2_journal_dirty_metadata(handle_t *handle, struct buffer_head *bh) journal = transaction->t_journal; jbd_lock_bh_state(bh); + if (is_handle_aborted(handle)) { + /* + * Check journal aborting with @jh->b_state_lock locked, + * since 'jh->b_transaction' could be replaced with + * 'jh->b_next_transaction' during old transaction + * committing if journal aborted, which may fail + * assertion on 'jh->b_frozen_data == NULL'. + */ + ret = -EROFS; + goto out_unlock_bh; + } + if (jh->b_modified == 0) { /* * This buffer's got modified and becoming part -- 2.25.1

1 0

[PATCH openEuler-5.10 01/32] bpf: Don't redirect packets with invalid pkt_len
by Zheng Zengkai 28 Jul '22

28 Jul '22

From: Zhengchao Shao <shaozhengchao(a)huawei.com> mainline inclusion from mainline-v5.19-rc6 commit fd1894224407c484f652ad456e1ce423e89bb3eb category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5HWKR CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id… -------------------------------- Syzbot found an issue [1]: fq_codel_drop() try to drop a flow whitout any skbs, that is, the flow->head is null. The root cause, as the [2] says, is because that bpf_prog_test_run_skb() run a bpf prog which redirects empty skbs. So we should determine whether the length of the packet modified by bpf prog or others like bpf_prog_test is valid before forwarding it directly. LINK: [1] https://syzkaller.appspot.com/bug?id=0b84da80c2917757915afa89f7738a9d16ec96… LINK: [2] https://www.spinics.net/lists/netdev/msg777503.html Reported-by: syzbot+7a12909485b94426aceb(a)syzkaller.appspotmail.com Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> Reviewed-by: Stanislav Fomichev <sdf(a)google.com> Link: https://lore.kernel.org/r/20220715115559.139691-1-shaozhengchao@huawei.com Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Reviewed-by: Wei Yongjun <weiyongjun1(a)huawei.com> Reviewed-by: Yue Haibing <yuehaibing(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- include/linux/skbuff.h | 8 ++++++++ net/bpf/test_run.c | 3 +++ net/core/dev.c | 1 + 3 files changed, 12 insertions(+) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 68efccc15a87..72cfb047fd2c 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -2251,6 +2251,14 @@ static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset) #endif /* NET_SKBUFF_DATA_USES_OFFSET */ +static inline void skb_assert_len(struct sk_buff *skb) +{ +#ifdef CONFIG_DEBUG_NET + if (WARN_ONCE(!skb->len, "%s\n", __func__)) + DO_ONCE_LITE(skb_dump, KERN_ERR, skb, false); +#endif /* CONFIG_DEBUG_NET */ +} + /* * Add data to an sk_buff */ diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c index 99712d35e535..f266a9453c8e 100644 --- a/net/bpf/test_run.c +++ b/net/bpf/test_run.c @@ -398,6 +398,9 @@ static int convert___skb_to_skb(struct sk_buff *skb, struct __sk_buff *__skb) { struct qdisc_skb_cb *cb = (struct qdisc_skb_cb *)skb->cb; + if (!skb->len) + return -EINVAL; + if (!__skb) return 0; diff --git a/net/core/dev.c b/net/core/dev.c index 12089c484b30..8e4de36eede8 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -4094,6 +4094,7 @@ static int __dev_queue_xmit(struct sk_buff *skb, struct net_device *sb_dev) bool again = false; skb_reset_mac_header(skb); + skb_assert_len(skb); if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_SCHED_TSTAMP)) __skb_tstamp_tx(skb, NULL, skb->sk, SCM_TSTAMP_SCHED); -- 2.20.1

1 31

[PATCH openEuler-1.0-LTS 1/2] dm btree spine: remove paranoid node_check call in node_prep_for_write()
by Yongqiang Liu 28 Jul '22

28 Jul '22

From: Joe Thornber <ejt(a)redhat.com> mainline inclusion from mainline-v5.13-rc1 commit f73e2e70ec48c9a9d45494c4866230a5059062ad category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5JCAH CVE: NA -------------------------------- Remove this extra BUG_ON() that calls node_check() -- which avoids extra crc checking. Signed-off-by: Joe Thornber <ejt(a)redhat.com> Signed-off-by: Mike Snitzer <snitzer(a)redhat.com> Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5(a)huawei.com> Reviewed-by: Hou Tao <houtao1(a)huawei.com> Reviewed-by: Jason Yan <yanaijie(a)huawei.com> Signed-off-by: Yongqiang Liu <liuyongqiang13(a)huawei.com> --- drivers/md/persistent-data/dm-btree-spine.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/md/persistent-data/dm-btree-spine.c b/drivers/md/persistent-data/dm-btree-spine.c index b27b8091a1ca..52f11a7bad92 100644 --- a/drivers/md/persistent-data/dm-btree-spine.c +++ b/drivers/md/persistent-data/dm-btree-spine.c @@ -30,8 +30,6 @@ static void node_prepare_for_write(struct dm_block_validator *v, h->csum = cpu_to_le32(dm_bm_checksum(&h->flags, block_size - sizeof(__le32), BTREE_CSUM_XOR)); - - BUG_ON(node_check(v, b, 4096)); } static int node_check(struct dm_block_validator *v, -- 2.25.1

1 1

[PATCH] scripts: Add checkformat script for openEuler kernel
by Zheng Zengkai 28 Jul '22

28 Jul '22

Add script for check patch header, including inclusion, commit, category, bugzilla sections. Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- pr_checkformat.py | 166 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 166 insertions(+) create mode 100644 pr_checkformat.py diff --git a/pr_checkformat.py b/pr_checkformat.py new file mode 100644 index 000000000000..9a799fe290d9 --- /dev/null +++ b/pr_checkformat.py @@ -0,0 +1,166 @@ +#!/usr/bin/python3 + +import os +import re +import sys +import subprocess +import shlex + +def exec_shell(cmd, workdir = None): + p = subprocess.Popen(shlex.split(cmd), stdin = subprocess.PIPE, stdout = subprocess.PIPE, + stderr = subprocess.PIPE, cwd = workdir) + output, err = p.communicate(timeout = 180) + return p.returncode, str(output, 'utf-8'), str(err, 'utf-8') + +commit_format = { + "[Backport]": + [ + [ + [r'mainline inclusion\n' ,r''], + [r'from mainline(-v\d*\.\d*-rc\d*)?\n' ,r'miss "from mainline"'], + [r'commit [a-f0-9]{40}\n' ,r'miss commit or commit-id not 40char'], + [r'(category: .*\n)?' ,r''], + [r'bugzilla: .*\n' ,r'miss bugzilla'], + [r'(CVE: CVE-\d{4}-\d+\n)?' ,r''], + [r'\n' ,r'miss \n'], + [r'(Reference: .*\n)+' ,r'miss Reference'], + [r'\n' ,r'miss \n'], + [r'-{16,80}\n' ,r'miss parting line 16~80 "-"'], + [r'\n' ,r'miss \n'], + ], + [ + [r'stable inclusion\n' ,r''], + [r'from stable-v\d*\.\d*\.\d*\n' ,r'miss "from stable"'], + [r'commit [a-f0-9]{40}\n' ,r'miss commit or commit-id not 40char'], + [r'(category: .*\n)?' ,r''], + [r'bugzilla: .*\n' ,r'miss bugzilla'], + [r'(CVE: CVE-\d{4}-\d+\n)?' ,r''], + [r'\n' ,r'miss \n'], + [r'(Reference: .*\n)+' ,r'miss Reference'], + [r'\n' ,r'miss \n'], + [r'-{16,80}\n' ,r'miss parting line 16~80 "-"'], + [r'\n' ,r'miss \n'], + ], + [ + [r'.* inclusion\n' ,r'miss inclusion'], + [r'(category: .*\n)?' ,r''], + [r'bugzilla: .*\n' ,r'miss bugzilla'], + [r'(CVE: CVE-\d{4}-\d+\n)?' ,r''], + [r'\n' ,r'miss \n'], + [r'(Reference: .*\n)+' ,r'miss Reference'], + [r'\n' ,r'miss \n'], + [r'-{16,80}\n' ,r'miss parting line 16~80 "-"'], + [r'\n' ,r'miss \n'], + ], + + ], + } + +def check_employee_id(body): + m = re.findall(r'Signed-off-by.*\n', body) + if len(m) == 0: + return False, "miss Signed-off-by\n" + else: + for sig in m: + __m = re.findall(r'Signed-off-by.*[a-zA-Z][0-9]{8}.*(a)huawei.com', sig) + if __m: + return False, "incorrect Signed-off-by: %s\n"%(__m); + + m = re.findall(r'Reviewed-by.*\n', body) + for rew in m: + __m = re.findall(r'Reviewed-by.*[a-zA-Z][0-9]{8}.*(a)huawei.com', rew) + if __m: + return False, "incorrect Reviewed-by: %s\n"%(__m); + + m = re.findall(r'Author:.*\n', body) + for author in m: + __m = re.findall(r'Author.*[a-zA-Z][0-9]{8}.*(a)huawei.com', author) + if __m: + return False, "incorrect author: %s\n"%(__m); + + return True, "" + +def format_print(__format, line): + description = "" + for i in range(0, len(__format)): + __line = __format[i][0].replace("\\n","") + if i == line: + __line += "\t<------" + __format[i][1] + description += __line + "\n" + return description + +def match_format(__format, body): + regex = r'' + match = False + + for i in range(0, len(__format)): + regex = regex + __format[i][0] + m = re.match(regex, body) + if not m: + return match, format_print(__format, i) + match = True + + return True, "" + +def error_description(description): + return description + +def do_checkformat(patch, workdir = None): + commit = patch.split(" ")[0] + + description = "" + + #check subject begin with hw + subject = exec_shell('git log --pretty=%s -n 1 %s'%('%s', commit), workdir)[1] + subject_type = subject.split(" ")[0] + if not subject_type in commit_format: + description = "subject should be begin with " + for __subject_type in commit_format: + description = description + __subject_type + "," + return False, error_description(description) + + #check Sig/Review/Author has Job number + body = exec_shell('git log -n 1 %s'%(commit), workdir)[1] + ret, description = check_employee_id(body) + if ret == False: + return False, error_description(description) + + #check commit message header + body = exec_shell('git log --pretty=%s -n 1 %s'%('%b', commit), workdir)[1] + for __format in commit_format[subject_type]: + match, description = match_format(__format, body) + if match == True: + if description == "": + return True, "checkformat success" + else: + return False, error_description(description) + + #not match any template + description = "do not match any template!\n" + for __subject_type in commit_format: + description = description + __subject_type + for __format in commit_format[__subject_type]: + description += "^^^^^^^^^^\n" + description += format_print(__format, -1) + description = description + "^^^^^^^^^^\n" + return False, error_description(description) + +def main(): + ForT = True + tag=sys.argv[1] + patches = os.popen("git log --oneline " + tag + "..HEAD").readlines() + for patch in patches: + ret, description = do_checkformat(patch) + if ret == False: + print("check " + patch + " failed") + print(description) + ForT = False + if ForT == False: + return False + + print("check " + str(len(patches)) + " patch(es) success") + return True + +if __name__ == "__main__": + # execute only if run as a script + main() -- 2.20.1

1 0

[PATCH v3 openEuler-22.09 00/24] Rust for openEuler
by Xie XiuQi 27 Jul '22

27 Jul '22

From: Zheng Zengkai <zhengzengkai(a)huawei.com> Rust for openEuler Boqun Feng (1): kallsyms: avoid hardcoding the buffer size Gary Guo (2): rust: add `build_error` crate vsprintf: add new `%pA` format specifier Miguel Ojeda (17): kallsyms: support "big" kernel symbols kallsyms: increase maximum kernel symbol length to 512 rust: add C helpers rust: add `compiler_builtins` crate rust: import upstream `alloc` crate rust: adapt `alloc` crate to the kernel rust: add `macros` crate rust: export generated symbols scripts: checkpatch: diagnose uses of `%pA` in the C side scripts: checkpatch: enable language-independent checks for Rust scripts: add `rustdoc_test_{builder,gen}.py` scripts scripts: add `generate_rust_analyzer.py` scripts scripts: decode_stacktrace: demangle Rust symbols docs: add Rust documentation Kbuild: add Rust support samples: add Rust examples MAINTAINERS: Rust Wedson Almeida Filho (3): rust: add `kernel` crate's `sync` module rust: add `kernel` crate drivers: gpio: PrimeCell PL061 in Rust Weilong Chen (1): Adaptation of rust for openEuler .gitignore | 5 + .rustfmt.toml | 12 + Documentation/core-api/printk-formats.rst | 10 + Documentation/doc-guide/kernel-doc.rst | 3 + Documentation/index.rst | 1 + Documentation/kbuild/kbuild.rst | 17 + Documentation/kbuild/makefiles.rst | 50 +- Documentation/process/changes.rst | 41 + Documentation/rust/arch-support.rst | 25 + Documentation/rust/coding-guidelines.rst | 216 ++ Documentation/rust/general-information.rst | 79 + Documentation/rust/index.rst | 22 + Documentation/rust/quick-start.rst | 232 ++ MAINTAINERS | 15 + Makefile | 176 +- arch/Kconfig | 6 + arch/arm/Kconfig | 1 + arch/arm64/Kconfig | 1 + arch/powerpc/Kconfig | 1 + arch/riscv/Kconfig | 1 + arch/riscv/Makefile | 5 + arch/um/Kconfig | 1 + arch/x86/Kconfig | 1 + arch/x86/Makefile | 13 + drivers/gpio/Kconfig | 8 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio_pl061_rust.rs | 370 ++ include/linux/kallsyms.h | 2 +- include/linux/spinlock.h | 25 +- init/Kconfig | 42 + kernel/kallsyms.c | 26 +- kernel/livepatch/core.c | 4 +- lib/Kconfig.debug | 155 + lib/vsprintf.c | 13 + rust/.gitignore | 10 + rust/Makefile | 398 +++ rust/alloc/README.md | 33 + rust/alloc/alloc.rs | 440 +++ rust/alloc/borrow.rs | 498 +++ rust/alloc/boxed.rs | 2026 +++++++++++ rust/alloc/boxed/thin.rs | 217 ++ rust/alloc/collections/mod.rs | 156 + rust/alloc/fmt.rs | 614 ++++ rust/alloc/lib.rs | 239 ++ rust/alloc/macros.rs | 128 + rust/alloc/raw_vec.rs | 567 +++ rust/alloc/slice.rs | 1295 +++++++ rust/alloc/str.rs | 641 ++++ rust/alloc/string.rs | 2944 +++++++++++++++ rust/alloc/vec/drain.rs | 186 + rust/alloc/vec/drain_filter.rs | 145 + rust/alloc/vec/into_iter.rs | 356 ++ rust/alloc/vec/is_zero.rs | 106 + rust/alloc/vec/mod.rs | 3362 ++++++++++++++++++ rust/alloc/vec/partial_eq.rs | 49 + rust/alloc/vec/set_len_on_drop.rs | 30 + rust/alloc/vec/spec_extend.rs | 174 + rust/bindgen_parameters | 17 + rust/build_error.rs | 29 + rust/compiler_builtins.rs | 79 + rust/exports.c | 20 + rust/helpers.c | 644 ++++ rust/kernel/allocator.rs | 65 + rust/kernel/amba.rs | 258 ++ rust/kernel/bindings.rs | 47 + rust/kernel/bindings_helper.h | 46 + rust/kernel/build_assert.rs | 82 + rust/kernel/c_types.rs | 119 + rust/kernel/chrdev.rs | 207 ++ rust/kernel/clk.rs | 79 + rust/kernel/cred.rs | 46 + rust/kernel/device.rs | 546 +++ rust/kernel/driver.rs | 442 +++ rust/kernel/error.rs | 565 +++ rust/kernel/file.rs | 864 +++++ rust/kernel/gpio.rs | 478 +++ rust/kernel/hwrng.rs | 242 ++ rust/kernel/io_buffer.rs | 153 + rust/kernel/io_mem.rs | 275 ++ rust/kernel/iov_iter.rs | 81 + rust/kernel/irq.rs | 411 +++ rust/kernel/kasync.rs | 6 + rust/kernel/kasync/net.rs | 322 ++ rust/kernel/kunit.rs | 91 + rust/kernel/lib.rs | 261 ++ rust/kernel/linked_list.rs | 247 ++ rust/kernel/miscdev.rs | 291 ++ rust/kernel/mm.rs | 149 + rust/kernel/module_param.rs | 498 +++ rust/kernel/net.rs | 391 ++ rust/kernel/net/filter.rs | 447 +++ rust/kernel/of.rs | 63 + rust/kernel/pages.rs | 144 + rust/kernel/platform.rs | 223 ++ rust/kernel/power.rs | 118 + rust/kernel/prelude.rs | 36 + rust/kernel/print.rs | 405 +++ rust/kernel/random.rs | 42 + rust/kernel/raw_list.rs | 361 ++ rust/kernel/rbtree.rs | 563 +++ rust/kernel/revocable.rs | 161 + rust/kernel/security.rs | 38 + rust/kernel/static_assert.rs | 38 + rust/kernel/std_vendor.rs | 160 + rust/kernel/str.rs | 597 ++++ rust/kernel/sync.rs | 161 + rust/kernel/sync/arc.rs | 503 +++ rust/kernel/sync/condvar.rs | 138 + rust/kernel/sync/guard.rs | 169 + rust/kernel/sync/locked_by.rs | 111 + rust/kernel/sync/mutex.rs | 153 + rust/kernel/sync/nowait.rs | 188 + rust/kernel/sync/revocable.rs | 250 ++ rust/kernel/sync/rwsem.rs | 197 + rust/kernel/sync/seqlock.rs | 202 ++ rust/kernel/sync/smutex.rs | 295 ++ rust/kernel/sync/spinlock.rs | 360 ++ rust/kernel/sysctl.rs | 199 ++ rust/kernel/task.rs | 175 + rust/kernel/types.rs | 679 ++++ rust/kernel/user_ptr.rs | 175 + rust/macros/helpers.rs | 79 + rust/macros/lib.rs | 94 + rust/macros/module.rs | 631 ++++ samples/Kconfig | 2 + samples/Makefile | 1 + samples/rust/Kconfig | 140 + samples/rust/Makefile | 15 + samples/rust/hostprogs/.gitignore | 3 + samples/rust/hostprogs/Makefile | 5 + samples/rust/hostprogs/a.rs | 7 + samples/rust/hostprogs/b.rs | 5 + samples/rust/hostprogs/single.rs | 12 + samples/rust/rust_chrdev.rs | 50 + samples/rust/rust_minimal.rs | 35 + samples/rust/rust_miscdev.rs | 143 + samples/rust/rust_module_parameters.rs | 69 + samples/rust/rust_netfilter.rs | 54 + samples/rust/rust_platform.rs | 22 + samples/rust/rust_print.rs | 54 + samples/rust/rust_random.rs | 60 + samples/rust/rust_semaphore.rs | 171 + samples/rust/rust_semaphore_c.c | 212 ++ samples/rust/rust_stack_probing.rs | 36 + samples/rust/rust_sync.rs | 93 + scripts/Kconfig.include | 2 +- scripts/Makefile | 3 + scripts/Makefile.build | 60 + scripts/Makefile.host | 34 +- scripts/Makefile.lib | 12 + scripts/cc-version.sh | 72 + scripts/checkpatch.pl | 8 +- scripts/decode_stacktrace.sh | 14 + scripts/generate_rust_analyzer.py | 134 + scripts/generate_rust_target.rs | 227 ++ scripts/is_rust_module.sh | 13 + scripts/kallsyms.c | 47 +- scripts/kconfig/confdata.c | 156 +- scripts/min-tool-version.sh | 43 + scripts/rust-is-available-bindgen-libclang.h | 2 + scripts/rust-is-available.sh | 158 + scripts/rustdoc_test_builder.py | 59 + scripts/rustdoc_test_gen.py | 164 + tools/include/linux/kallsyms.h | 2 +- tools/lib/perf/include/perf/event.h | 2 +- tools/lib/symbol/kallsyms.h | 2 +- 166 files changed, 34760 insertions(+), 43 deletions(-) create mode 100644 .rustfmt.toml create mode 100644 Documentation/rust/arch-support.rst create mode 100644 Documentation/rust/coding-guidelines.rst create mode 100644 Documentation/rust/general-information.rst create mode 100644 Documentation/rust/index.rst create mode 100644 Documentation/rust/quick-start.rst create mode 100644 drivers/gpio/gpio_pl061_rust.rs create mode 100644 rust/.gitignore create mode 100644 rust/Makefile create mode 100644 rust/alloc/README.md create mode 100644 rust/alloc/alloc.rs create mode 100644 rust/alloc/borrow.rs create mode 100644 rust/alloc/boxed.rs create mode 100644 rust/alloc/boxed/thin.rs create mode 100644 rust/alloc/collections/mod.rs create mode 100644 rust/alloc/fmt.rs create mode 100644 rust/alloc/lib.rs create mode 100644 rust/alloc/macros.rs create mode 100644 rust/alloc/raw_vec.rs create mode 100644 rust/alloc/slice.rs create mode 100644 rust/alloc/str.rs create mode 100644 rust/alloc/string.rs create mode 100644 rust/alloc/vec/drain.rs create mode 100644 rust/alloc/vec/drain_filter.rs create mode 100644 rust/alloc/vec/into_iter.rs create mode 100644 rust/alloc/vec/is_zero.rs create mode 100644 rust/alloc/vec/mod.rs create mode 100644 rust/alloc/vec/partial_eq.rs create mode 100644 rust/alloc/vec/set_len_on_drop.rs create mode 100644 rust/alloc/vec/spec_extend.rs create mode 100644 rust/bindgen_parameters create mode 100644 rust/build_error.rs create mode 100644 rust/compiler_builtins.rs create mode 100644 rust/exports.c create mode 100644 rust/helpers.c create mode 100644 rust/kernel/allocator.rs create mode 100644 rust/kernel/amba.rs create mode 100644 rust/kernel/bindings.rs create mode 100644 rust/kernel/bindings_helper.h create mode 100644 rust/kernel/build_assert.rs create mode 100644 rust/kernel/c_types.rs create mode 100644 rust/kernel/chrdev.rs create mode 100644 rust/kernel/clk.rs create mode 100644 rust/kernel/cred.rs create mode 100644 rust/kernel/device.rs create mode 100644 rust/kernel/driver.rs create mode 100644 rust/kernel/error.rs create mode 100644 rust/kernel/file.rs create mode 100644 rust/kernel/gpio.rs create mode 100644 rust/kernel/hwrng.rs create mode 100644 rust/kernel/io_buffer.rs create mode 100644 rust/kernel/io_mem.rs create mode 100644 rust/kernel/iov_iter.rs create mode 100644 rust/kernel/irq.rs create mode 100644 rust/kernel/kasync.rs create mode 100644 rust/kernel/kasync/net.rs create mode 100644 rust/kernel/kunit.rs create mode 100644 rust/kernel/lib.rs create mode 100644 rust/kernel/linked_list.rs create mode 100644 rust/kernel/miscdev.rs create mode 100644 rust/kernel/mm.rs create mode 100644 rust/kernel/module_param.rs create mode 100644 rust/kernel/net.rs create mode 100644 rust/kernel/net/filter.rs create mode 100644 rust/kernel/of.rs create mode 100644 rust/kernel/pages.rs create mode 100644 rust/kernel/platform.rs create mode 100644 rust/kernel/power.rs create mode 100644 rust/kernel/prelude.rs create mode 100644 rust/kernel/print.rs create mode 100644 rust/kernel/random.rs create mode 100644 rust/kernel/raw_list.rs create mode 100644 rust/kernel/rbtree.rs create mode 100644 rust/kernel/revocable.rs create mode 100644 rust/kernel/security.rs create mode 100644 rust/kernel/static_assert.rs create mode 100644 rust/kernel/std_vendor.rs create mode 100644 rust/kernel/str.rs create mode 100644 rust/kernel/sync.rs create mode 100644 rust/kernel/sync/arc.rs create mode 100644 rust/kernel/sync/condvar.rs create mode 100644 rust/kernel/sync/guard.rs create mode 100644 rust/kernel/sync/locked_by.rs create mode 100644 rust/kernel/sync/mutex.rs create mode 100644 rust/kernel/sync/nowait.rs create mode 100644 rust/kernel/sync/revocable.rs create mode 100644 rust/kernel/sync/rwsem.rs create mode 100644 rust/kernel/sync/seqlock.rs create mode 100644 rust/kernel/sync/smutex.rs create mode 100644 rust/kernel/sync/spinlock.rs create mode 100644 rust/kernel/sysctl.rs create mode 100644 rust/kernel/task.rs create mode 100644 rust/kernel/types.rs create mode 100644 rust/kernel/user_ptr.rs create mode 100644 rust/macros/helpers.rs create mode 100644 rust/macros/lib.rs create mode 100644 rust/macros/module.rs create mode 100644 samples/rust/Kconfig create mode 100644 samples/rust/Makefile create mode 100644 samples/rust/hostprogs/.gitignore create mode 100644 samples/rust/hostprogs/Makefile create mode 100644 samples/rust/hostprogs/a.rs create mode 100644 samples/rust/hostprogs/b.rs create mode 100644 samples/rust/hostprogs/single.rs create mode 100644 samples/rust/rust_chrdev.rs create mode 100644 samples/rust/rust_minimal.rs create mode 100644 samples/rust/rust_miscdev.rs create mode 100644 samples/rust/rust_module_parameters.rs create mode 100644 samples/rust/rust_netfilter.rs create mode 100644 samples/rust/rust_platform.rs create mode 100644 samples/rust/rust_print.rs create mode 100644 samples/rust/rust_random.rs create mode 100644 samples/rust/rust_semaphore.rs create mode 100644 samples/rust/rust_semaphore_c.c create mode 100644 samples/rust/rust_stack_probing.rs create mode 100644 samples/rust/rust_sync.rs create mode 100755 scripts/cc-version.sh create mode 100755 scripts/generate_rust_analyzer.py create mode 100644 scripts/generate_rust_target.rs create mode 100755 scripts/is_rust_module.sh create mode 100755 scripts/min-tool-version.sh create mode 100644 scripts/rust-is-available-bindgen-libclang.h create mode 100755 scripts/rust-is-available.sh create mode 100755 scripts/rustdoc_test_builder.py create mode 100755 scripts/rustdoc_test_gen.py -- 2.20.1

1 24

[PATCH v2 openEuler-22.09 00/24] Rust for openEuler
by Xie XiuQi 27 Jul '22

27 Jul '22

From: Zheng Zengkai <zhengzengkai(a)huawei.com> Rust for openEuler Boqun Feng (1): kallsyms: avoid hardcoding the buffer size Gary Guo (2): rust: add `build_error` crate vsprintf: add new `%pA` format specifier Miguel Ojeda (17): kallsyms: support "big" kernel symbols kallsyms: increase maximum kernel symbol length to 512 rust: add C helpers rust: add `compiler_builtins` crate rust: import upstream `alloc` crate rust: adapt `alloc` crate to the kernel rust: add `macros` crate rust: export generated symbols scripts: checkpatch: diagnose uses of `%pA` in the C side scripts: checkpatch: enable language-independent checks for Rust scripts: add `rustdoc_test_{builder,gen}.py` scripts scripts: add `generate_rust_analyzer.py` scripts scripts: decode_stacktrace: demangle Rust symbols docs: add Rust documentation Kbuild: add Rust support samples: add Rust examples MAINTAINERS: Rust Wedson Almeida Filho (3): rust: add `kernel` crate's `sync` module rust: add `kernel` crate drivers: gpio: PrimeCell PL061 in Rust Weilong Chen (1): Adaptation of rust for openEuler .gitignore | 5 + .rustfmt.toml | 12 + Documentation/core-api/printk-formats.rst | 10 + Documentation/doc-guide/kernel-doc.rst | 3 + Documentation/index.rst | 1 + Documentation/kbuild/kbuild.rst | 17 + Documentation/kbuild/makefiles.rst | 50 +- Documentation/process/changes.rst | 41 + Documentation/rust/arch-support.rst | 25 + Documentation/rust/coding-guidelines.rst | 216 ++ Documentation/rust/general-information.rst | 79 + Documentation/rust/index.rst | 22 + Documentation/rust/quick-start.rst | 232 ++ MAINTAINERS | 15 + Makefile | 176 +- arch/Kconfig | 6 + arch/arm/Kconfig | 1 + arch/arm64/Kconfig | 1 + arch/powerpc/Kconfig | 1 + arch/riscv/Kconfig | 1 + arch/riscv/Makefile | 5 + arch/um/Kconfig | 1 + arch/x86/Kconfig | 1 + arch/x86/Makefile | 13 + drivers/gpio/Kconfig | 8 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio_pl061_rust.rs | 370 ++ include/linux/kallsyms.h | 2 +- include/linux/spinlock.h | 25 +- init/Kconfig | 42 + kernel/kallsyms.c | 26 +- kernel/livepatch/core.c | 4 +- lib/Kconfig.debug | 155 + lib/vsprintf.c | 13 + rust/.gitignore | 10 + rust/Makefile | 398 +++ rust/alloc/README.md | 33 + rust/alloc/alloc.rs | 440 +++ rust/alloc/borrow.rs | 498 +++ rust/alloc/boxed.rs | 2026 +++++++++++ rust/alloc/boxed/thin.rs | 217 ++ rust/alloc/collections/mod.rs | 156 + rust/alloc/fmt.rs | 614 ++++ rust/alloc/lib.rs | 239 ++ rust/alloc/macros.rs | 128 + rust/alloc/raw_vec.rs | 567 +++ rust/alloc/slice.rs | 1295 +++++++ rust/alloc/str.rs | 641 ++++ rust/alloc/string.rs | 2944 +++++++++++++++ rust/alloc/vec/drain.rs | 186 + rust/alloc/vec/drain_filter.rs | 145 + rust/alloc/vec/into_iter.rs | 356 ++ rust/alloc/vec/is_zero.rs | 106 + rust/alloc/vec/mod.rs | 3362 ++++++++++++++++++ rust/alloc/vec/partial_eq.rs | 49 + rust/alloc/vec/set_len_on_drop.rs | 30 + rust/alloc/vec/spec_extend.rs | 174 + rust/bindgen_parameters | 17 + rust/build_error.rs | 29 + rust/compiler_builtins.rs | 79 + rust/exports.c | 20 + rust/helpers.c | 644 ++++ rust/kernel/allocator.rs | 65 + rust/kernel/amba.rs | 258 ++ rust/kernel/bindings.rs | 47 + rust/kernel/bindings_helper.h | 46 + rust/kernel/build_assert.rs | 82 + rust/kernel/c_types.rs | 119 + rust/kernel/chrdev.rs | 207 ++ rust/kernel/clk.rs | 79 + rust/kernel/cred.rs | 46 + rust/kernel/device.rs | 546 +++ rust/kernel/driver.rs | 442 +++ rust/kernel/error.rs | 565 +++ rust/kernel/file.rs | 864 +++++ rust/kernel/gpio.rs | 478 +++ rust/kernel/hwrng.rs | 242 ++ rust/kernel/io_buffer.rs | 153 + rust/kernel/io_mem.rs | 275 ++ rust/kernel/iov_iter.rs | 81 + rust/kernel/irq.rs | 411 +++ rust/kernel/kasync.rs | 6 + rust/kernel/kasync/net.rs | 322 ++ rust/kernel/kunit.rs | 91 + rust/kernel/lib.rs | 261 ++ rust/kernel/linked_list.rs | 247 ++ rust/kernel/miscdev.rs | 291 ++ rust/kernel/mm.rs | 149 + rust/kernel/module_param.rs | 498 +++ rust/kernel/net.rs | 391 ++ rust/kernel/net/filter.rs | 447 +++ rust/kernel/of.rs | 63 + rust/kernel/pages.rs | 144 + rust/kernel/platform.rs | 223 ++ rust/kernel/power.rs | 118 + rust/kernel/prelude.rs | 36 + rust/kernel/print.rs | 405 +++ rust/kernel/random.rs | 42 + rust/kernel/raw_list.rs | 361 ++ rust/kernel/rbtree.rs | 563 +++ rust/kernel/revocable.rs | 161 + rust/kernel/security.rs | 38 + rust/kernel/static_assert.rs | 38 + rust/kernel/std_vendor.rs | 160 + rust/kernel/str.rs | 597 ++++ rust/kernel/sync.rs | 161 + rust/kernel/sync/arc.rs | 503 +++ rust/kernel/sync/condvar.rs | 138 + rust/kernel/sync/guard.rs | 169 + rust/kernel/sync/locked_by.rs | 111 + rust/kernel/sync/mutex.rs | 153 + rust/kernel/sync/nowait.rs | 188 + rust/kernel/sync/revocable.rs | 250 ++ rust/kernel/sync/rwsem.rs | 197 + rust/kernel/sync/seqlock.rs | 202 ++ rust/kernel/sync/smutex.rs | 295 ++ rust/kernel/sync/spinlock.rs | 360 ++ rust/kernel/sysctl.rs | 199 ++ rust/kernel/task.rs | 175 + rust/kernel/types.rs | 679 ++++ rust/kernel/user_ptr.rs | 175 + rust/macros/helpers.rs | 79 + rust/macros/lib.rs | 94 + rust/macros/module.rs | 631 ++++ samples/Kconfig | 2 + samples/Makefile | 1 + samples/rust/Kconfig | 140 + samples/rust/Makefile | 15 + samples/rust/hostprogs/.gitignore | 3 + samples/rust/hostprogs/Makefile | 5 + samples/rust/hostprogs/a.rs | 7 + samples/rust/hostprogs/b.rs | 5 + samples/rust/hostprogs/single.rs | 12 + samples/rust/rust_chrdev.rs | 50 + samples/rust/rust_minimal.rs | 35 + samples/rust/rust_miscdev.rs | 143 + samples/rust/rust_module_parameters.rs | 69 + samples/rust/rust_netfilter.rs | 54 + samples/rust/rust_platform.rs | 22 + samples/rust/rust_print.rs | 54 + samples/rust/rust_random.rs | 60 + samples/rust/rust_semaphore.rs | 171 + samples/rust/rust_semaphore_c.c | 212 ++ samples/rust/rust_stack_probing.rs | 36 + samples/rust/rust_sync.rs | 93 + scripts/Kconfig.include | 2 +- scripts/Makefile | 3 + scripts/Makefile.build | 60 + scripts/Makefile.host | 34 +- scripts/Makefile.lib | 12 + scripts/cc-version.sh | 72 + scripts/checkpatch.pl | 8 +- scripts/decode_stacktrace.sh | 14 + scripts/generate_rust_analyzer.py | 134 + scripts/generate_rust_target.rs | 227 ++ scripts/is_rust_module.sh | 13 + scripts/kallsyms.c | 47 +- scripts/kconfig/confdata.c | 156 +- scripts/min-tool-version.sh | 43 + scripts/rust-is-available-bindgen-libclang.h | 2 + scripts/rust-is-available.sh | 158 + scripts/rustdoc_test_builder.py | 59 + scripts/rustdoc_test_gen.py | 164 + tools/include/linux/kallsyms.h | 2 +- tools/lib/perf/include/perf/event.h | 2 +- tools/lib/symbol/kallsyms.h | 2 +- 166 files changed, 34760 insertions(+), 43 deletions(-) create mode 100644 .rustfmt.toml create mode 100644 Documentation/rust/arch-support.rst create mode 100644 Documentation/rust/coding-guidelines.rst create mode 100644 Documentation/rust/general-information.rst create mode 100644 Documentation/rust/index.rst create mode 100644 Documentation/rust/quick-start.rst create mode 100644 drivers/gpio/gpio_pl061_rust.rs create mode 100644 rust/.gitignore create mode 100644 rust/Makefile create mode 100644 rust/alloc/README.md create mode 100644 rust/alloc/alloc.rs create mode 100644 rust/alloc/borrow.rs create mode 100644 rust/alloc/boxed.rs create mode 100644 rust/alloc/boxed/thin.rs create mode 100644 rust/alloc/collections/mod.rs create mode 100644 rust/alloc/fmt.rs create mode 100644 rust/alloc/lib.rs create mode 100644 rust/alloc/macros.rs create mode 100644 rust/alloc/raw_vec.rs create mode 100644 rust/alloc/slice.rs create mode 100644 rust/alloc/str.rs create mode 100644 rust/alloc/string.rs create mode 100644 rust/alloc/vec/drain.rs create mode 100644 rust/alloc/vec/drain_filter.rs create mode 100644 rust/alloc/vec/into_iter.rs create mode 100644 rust/alloc/vec/is_zero.rs create mode 100644 rust/alloc/vec/mod.rs create mode 100644 rust/alloc/vec/partial_eq.rs create mode 100644 rust/alloc/vec/set_len_on_drop.rs create mode 100644 rust/alloc/vec/spec_extend.rs create mode 100644 rust/bindgen_parameters create mode 100644 rust/build_error.rs create mode 100644 rust/compiler_builtins.rs create mode 100644 rust/exports.c create mode 100644 rust/helpers.c create mode 100644 rust/kernel/allocator.rs create mode 100644 rust/kernel/amba.rs create mode 100644 rust/kernel/bindings.rs create mode 100644 rust/kernel/bindings_helper.h create mode 100644 rust/kernel/build_assert.rs create mode 100644 rust/kernel/c_types.rs create mode 100644 rust/kernel/chrdev.rs create mode 100644 rust/kernel/clk.rs create mode 100644 rust/kernel/cred.rs create mode 100644 rust/kernel/device.rs create mode 100644 rust/kernel/driver.rs create mode 100644 rust/kernel/error.rs create mode 100644 rust/kernel/file.rs create mode 100644 rust/kernel/gpio.rs create mode 100644 rust/kernel/hwrng.rs create mode 100644 rust/kernel/io_buffer.rs create mode 100644 rust/kernel/io_mem.rs create mode 100644 rust/kernel/iov_iter.rs create mode 100644 rust/kernel/irq.rs create mode 100644 rust/kernel/kasync.rs create mode 100644 rust/kernel/kasync/net.rs create mode 100644 rust/kernel/kunit.rs create mode 100644 rust/kernel/lib.rs create mode 100644 rust/kernel/linked_list.rs create mode 100644 rust/kernel/miscdev.rs create mode 100644 rust/kernel/mm.rs create mode 100644 rust/kernel/module_param.rs create mode 100644 rust/kernel/net.rs create mode 100644 rust/kernel/net/filter.rs create mode 100644 rust/kernel/of.rs create mode 100644 rust/kernel/pages.rs create mode 100644 rust/kernel/platform.rs create mode 100644 rust/kernel/power.rs create mode 100644 rust/kernel/prelude.rs create mode 100644 rust/kernel/print.rs create mode 100644 rust/kernel/random.rs create mode 100644 rust/kernel/raw_list.rs create mode 100644 rust/kernel/rbtree.rs create mode 100644 rust/kernel/revocable.rs create mode 100644 rust/kernel/security.rs create mode 100644 rust/kernel/static_assert.rs create mode 100644 rust/kernel/std_vendor.rs create mode 100644 rust/kernel/str.rs create mode 100644 rust/kernel/sync.rs create mode 100644 rust/kernel/sync/arc.rs create mode 100644 rust/kernel/sync/condvar.rs create mode 100644 rust/kernel/sync/guard.rs create mode 100644 rust/kernel/sync/locked_by.rs create mode 100644 rust/kernel/sync/mutex.rs create mode 100644 rust/kernel/sync/nowait.rs create mode 100644 rust/kernel/sync/revocable.rs create mode 100644 rust/kernel/sync/rwsem.rs create mode 100644 rust/kernel/sync/seqlock.rs create mode 100644 rust/kernel/sync/smutex.rs create mode 100644 rust/kernel/sync/spinlock.rs create mode 100644 rust/kernel/sysctl.rs create mode 100644 rust/kernel/task.rs create mode 100644 rust/kernel/types.rs create mode 100644 rust/kernel/user_ptr.rs create mode 100644 rust/macros/helpers.rs create mode 100644 rust/macros/lib.rs create mode 100644 rust/macros/module.rs create mode 100644 samples/rust/Kconfig create mode 100644 samples/rust/Makefile create mode 100644 samples/rust/hostprogs/.gitignore create mode 100644 samples/rust/hostprogs/Makefile create mode 100644 samples/rust/hostprogs/a.rs create mode 100644 samples/rust/hostprogs/b.rs create mode 100644 samples/rust/hostprogs/single.rs create mode 100644 samples/rust/rust_chrdev.rs create mode 100644 samples/rust/rust_minimal.rs create mode 100644 samples/rust/rust_miscdev.rs create mode 100644 samples/rust/rust_module_parameters.rs create mode 100644 samples/rust/rust_netfilter.rs create mode 100644 samples/rust/rust_platform.rs create mode 100644 samples/rust/rust_print.rs create mode 100644 samples/rust/rust_random.rs create mode 100644 samples/rust/rust_semaphore.rs create mode 100644 samples/rust/rust_semaphore_c.c create mode 100644 samples/rust/rust_stack_probing.rs create mode 100644 samples/rust/rust_sync.rs create mode 100755 scripts/cc-version.sh create mode 100755 scripts/generate_rust_analyzer.py create mode 100644 scripts/generate_rust_target.rs create mode 100755 scripts/is_rust_module.sh create mode 100755 scripts/min-tool-version.sh create mode 100644 scripts/rust-is-available-bindgen-libclang.h create mode 100755 scripts/rust-is-available.sh create mode 100755 scripts/rustdoc_test_builder.py create mode 100755 scripts/rustdoc_test_gen.py -- 2.20.1

1 24

[PATCH openEuler-22.09 00/24] Rust for openEuler
by Xie XiuQi 27 Jul '22

27 Jul '22

From: Zheng Zengkai <zhengzengkai(a)huawei.com> Rust for openEuler Boqun Feng (1): kallsyms: avoid hardcoding the buffer size Gary Guo (2): rust: add `build_error` crate vsprintf: add new `%pA` format specifier Miguel Ojeda (17): kallsyms: support "big" kernel symbols kallsyms: increase maximum kernel symbol length to 512 rust: add C helpers rust: add `compiler_builtins` crate rust: import upstream `alloc` crate rust: adapt `alloc` crate to the kernel rust: add `macros` crate rust: export generated symbols scripts: checkpatch: diagnose uses of `%pA` in the C side scripts: checkpatch: enable language-independent checks for Rust scripts: add `rustdoc_test_{builder,gen}.py` scripts scripts: add `generate_rust_analyzer.py` scripts scripts: decode_stacktrace: demangle Rust symbols docs: add Rust documentation Kbuild: add Rust support samples: add Rust examples MAINTAINERS: Rust Wedson Almeida Filho (3): rust: add `kernel` crate's `sync` module rust: add `kernel` crate drivers: gpio: PrimeCell PL061 in Rust Weilong Chen (1): Adaptation of rust for openEuler .gitignore | 5 + .rustfmt.toml | 12 + Documentation/core-api/printk-formats.rst | 10 + Documentation/doc-guide/kernel-doc.rst | 3 + Documentation/index.rst | 1 + Documentation/kbuild/kbuild.rst | 17 + Documentation/kbuild/makefiles.rst | 50 +- Documentation/process/changes.rst | 41 + Documentation/rust/arch-support.rst | 25 + Documentation/rust/coding-guidelines.rst | 216 ++ Documentation/rust/general-information.rst | 79 + Documentation/rust/index.rst | 22 + Documentation/rust/quick-start.rst | 232 ++ MAINTAINERS | 15 + Makefile | 176 +- arch/Kconfig | 6 + arch/arm/Kconfig | 1 + arch/arm64/Kconfig | 1 + arch/powerpc/Kconfig | 1 + arch/riscv/Kconfig | 1 + arch/riscv/Makefile | 5 + arch/um/Kconfig | 1 + arch/x86/Kconfig | 1 + arch/x86/Makefile | 13 + drivers/gpio/Kconfig | 8 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio_pl061_rust.rs | 370 ++ include/linux/kallsyms.h | 2 +- include/linux/spinlock.h | 25 +- init/Kconfig | 42 + kernel/kallsyms.c | 26 +- kernel/livepatch/core.c | 4 +- lib/Kconfig.debug | 155 + lib/vsprintf.c | 13 + rust/.gitignore | 10 + rust/Makefile | 398 +++ rust/alloc/README.md | 33 + rust/alloc/alloc.rs | 440 +++ rust/alloc/borrow.rs | 498 +++ rust/alloc/boxed.rs | 2026 +++++++++++ rust/alloc/boxed/thin.rs | 217 ++ rust/alloc/collections/mod.rs | 156 + rust/alloc/fmt.rs | 614 ++++ rust/alloc/lib.rs | 239 ++ rust/alloc/macros.rs | 128 + rust/alloc/raw_vec.rs | 567 +++ rust/alloc/slice.rs | 1295 +++++++ rust/alloc/str.rs | 641 ++++ rust/alloc/string.rs | 2944 +++++++++++++++ rust/alloc/vec/drain.rs | 186 + rust/alloc/vec/drain_filter.rs | 145 + rust/alloc/vec/into_iter.rs | 356 ++ rust/alloc/vec/is_zero.rs | 106 + rust/alloc/vec/mod.rs | 3362 ++++++++++++++++++ rust/alloc/vec/partial_eq.rs | 49 + rust/alloc/vec/set_len_on_drop.rs | 30 + rust/alloc/vec/spec_extend.rs | 174 + rust/bindgen_parameters | 17 + rust/build_error.rs | 29 + rust/compiler_builtins.rs | 79 + rust/exports.c | 20 + rust/helpers.c | 644 ++++ rust/kernel/allocator.rs | 65 + rust/kernel/amba.rs | 258 ++ rust/kernel/bindings.rs | 47 + rust/kernel/bindings_helper.h | 46 + rust/kernel/build_assert.rs | 82 + rust/kernel/c_types.rs | 119 + rust/kernel/chrdev.rs | 207 ++ rust/kernel/clk.rs | 79 + rust/kernel/cred.rs | 46 + rust/kernel/device.rs | 546 +++ rust/kernel/driver.rs | 442 +++ rust/kernel/error.rs | 565 +++ rust/kernel/file.rs | 864 +++++ rust/kernel/gpio.rs | 478 +++ rust/kernel/hwrng.rs | 242 ++ rust/kernel/io_buffer.rs | 153 + rust/kernel/io_mem.rs | 275 ++ rust/kernel/iov_iter.rs | 81 + rust/kernel/irq.rs | 411 +++ rust/kernel/kasync.rs | 6 + rust/kernel/kasync/net.rs | 322 ++ rust/kernel/kunit.rs | 91 + rust/kernel/lib.rs | 261 ++ rust/kernel/linked_list.rs | 247 ++ rust/kernel/miscdev.rs | 291 ++ rust/kernel/mm.rs | 149 + rust/kernel/module_param.rs | 498 +++ rust/kernel/net.rs | 391 ++ rust/kernel/net/filter.rs | 447 +++ rust/kernel/of.rs | 63 + rust/kernel/pages.rs | 144 + rust/kernel/platform.rs | 223 ++ rust/kernel/power.rs | 118 + rust/kernel/prelude.rs | 36 + rust/kernel/print.rs | 405 +++ rust/kernel/random.rs | 42 + rust/kernel/raw_list.rs | 361 ++ rust/kernel/rbtree.rs | 563 +++ rust/kernel/revocable.rs | 161 + rust/kernel/security.rs | 38 + rust/kernel/static_assert.rs | 38 + rust/kernel/std_vendor.rs | 160 + rust/kernel/str.rs | 597 ++++ rust/kernel/sync.rs | 161 + rust/kernel/sync/arc.rs | 503 +++ rust/kernel/sync/condvar.rs | 138 + rust/kernel/sync/guard.rs | 169 + rust/kernel/sync/locked_by.rs | 111 + rust/kernel/sync/mutex.rs | 153 + rust/kernel/sync/nowait.rs | 188 + rust/kernel/sync/revocable.rs | 250 ++ rust/kernel/sync/rwsem.rs | 197 + rust/kernel/sync/seqlock.rs | 202 ++ rust/kernel/sync/smutex.rs | 295 ++ rust/kernel/sync/spinlock.rs | 360 ++ rust/kernel/sysctl.rs | 199 ++ rust/kernel/task.rs | 175 + rust/kernel/types.rs | 679 ++++ rust/kernel/user_ptr.rs | 175 + rust/macros/helpers.rs | 79 + rust/macros/lib.rs | 94 + rust/macros/module.rs | 631 ++++ samples/Kconfig | 2 + samples/Makefile | 1 + samples/rust/Kconfig | 140 + samples/rust/Makefile | 15 + samples/rust/hostprogs/.gitignore | 3 + samples/rust/hostprogs/Makefile | 5 + samples/rust/hostprogs/a.rs | 7 + samples/rust/hostprogs/b.rs | 5 + samples/rust/hostprogs/single.rs | 12 + samples/rust/rust_chrdev.rs | 50 + samples/rust/rust_minimal.rs | 35 + samples/rust/rust_miscdev.rs | 143 + samples/rust/rust_module_parameters.rs | 69 + samples/rust/rust_netfilter.rs | 54 + samples/rust/rust_platform.rs | 22 + samples/rust/rust_print.rs | 54 + samples/rust/rust_random.rs | 60 + samples/rust/rust_semaphore.rs | 171 + samples/rust/rust_semaphore_c.c | 212 ++ samples/rust/rust_stack_probing.rs | 36 + samples/rust/rust_sync.rs | 93 + scripts/Kconfig.include | 2 +- scripts/Makefile | 3 + scripts/Makefile.build | 60 + scripts/Makefile.host | 34 +- scripts/Makefile.lib | 12 + scripts/cc-version.sh | 72 + scripts/checkpatch.pl | 8 +- scripts/decode_stacktrace.sh | 14 + scripts/generate_rust_analyzer.py | 134 + scripts/generate_rust_target.rs | 227 ++ scripts/is_rust_module.sh | 13 + scripts/kallsyms.c | 47 +- scripts/kconfig/confdata.c | 156 +- scripts/min-tool-version.sh | 43 + scripts/rust-is-available-bindgen-libclang.h | 2 + scripts/rust-is-available.sh | 158 + scripts/rustdoc_test_builder.py | 59 + scripts/rustdoc_test_gen.py | 164 + tools/include/linux/kallsyms.h | 2 +- tools/lib/perf/include/perf/event.h | 2 +- tools/lib/symbol/kallsyms.h | 2 +- 166 files changed, 34760 insertions(+), 43 deletions(-) create mode 100644 .rustfmt.toml create mode 100644 Documentation/rust/arch-support.rst create mode 100644 Documentation/rust/coding-guidelines.rst create mode 100644 Documentation/rust/general-information.rst create mode 100644 Documentation/rust/index.rst create mode 100644 Documentation/rust/quick-start.rst create mode 100644 drivers/gpio/gpio_pl061_rust.rs create mode 100644 rust/.gitignore create mode 100644 rust/Makefile create mode 100644 rust/alloc/README.md create mode 100644 rust/alloc/alloc.rs create mode 100644 rust/alloc/borrow.rs create mode 100644 rust/alloc/boxed.rs create mode 100644 rust/alloc/boxed/thin.rs create mode 100644 rust/alloc/collections/mod.rs create mode 100644 rust/alloc/fmt.rs create mode 100644 rust/alloc/lib.rs create mode 100644 rust/alloc/macros.rs create mode 100644 rust/alloc/raw_vec.rs create mode 100644 rust/alloc/slice.rs create mode 100644 rust/alloc/str.rs create mode 100644 rust/alloc/string.rs create mode 100644 rust/alloc/vec/drain.rs create mode 100644 rust/alloc/vec/drain_filter.rs create mode 100644 rust/alloc/vec/into_iter.rs create mode 100644 rust/alloc/vec/is_zero.rs create mode 100644 rust/alloc/vec/mod.rs create mode 100644 rust/alloc/vec/partial_eq.rs create mode 100644 rust/alloc/vec/set_len_on_drop.rs create mode 100644 rust/alloc/vec/spec_extend.rs create mode 100644 rust/bindgen_parameters create mode 100644 rust/build_error.rs create mode 100644 rust/compiler_builtins.rs create mode 100644 rust/exports.c create mode 100644 rust/helpers.c create mode 100644 rust/kernel/allocator.rs create mode 100644 rust/kernel/amba.rs create mode 100644 rust/kernel/bindings.rs create mode 100644 rust/kernel/bindings_helper.h create mode 100644 rust/kernel/build_assert.rs create mode 100644 rust/kernel/c_types.rs create mode 100644 rust/kernel/chrdev.rs create mode 100644 rust/kernel/clk.rs create mode 100644 rust/kernel/cred.rs create mode 100644 rust/kernel/device.rs create mode 100644 rust/kernel/driver.rs create mode 100644 rust/kernel/error.rs create mode 100644 rust/kernel/file.rs create mode 100644 rust/kernel/gpio.rs create mode 100644 rust/kernel/hwrng.rs create mode 100644 rust/kernel/io_buffer.rs create mode 100644 rust/kernel/io_mem.rs create mode 100644 rust/kernel/iov_iter.rs create mode 100644 rust/kernel/irq.rs create mode 100644 rust/kernel/kasync.rs create mode 100644 rust/kernel/kasync/net.rs create mode 100644 rust/kernel/kunit.rs create mode 100644 rust/kernel/lib.rs create mode 100644 rust/kernel/linked_list.rs create mode 100644 rust/kernel/miscdev.rs create mode 100644 rust/kernel/mm.rs create mode 100644 rust/kernel/module_param.rs create mode 100644 rust/kernel/net.rs create mode 100644 rust/kernel/net/filter.rs create mode 100644 rust/kernel/of.rs create mode 100644 rust/kernel/pages.rs create mode 100644 rust/kernel/platform.rs create mode 100644 rust/kernel/power.rs create mode 100644 rust/kernel/prelude.rs create mode 100644 rust/kernel/print.rs create mode 100644 rust/kernel/random.rs create mode 100644 rust/kernel/raw_list.rs create mode 100644 rust/kernel/rbtree.rs create mode 100644 rust/kernel/revocable.rs create mode 100644 rust/kernel/security.rs create mode 100644 rust/kernel/static_assert.rs create mode 100644 rust/kernel/std_vendor.rs create mode 100644 rust/kernel/str.rs create mode 100644 rust/kernel/sync.rs create mode 100644 rust/kernel/sync/arc.rs create mode 100644 rust/kernel/sync/condvar.rs create mode 100644 rust/kernel/sync/guard.rs create mode 100644 rust/kernel/sync/locked_by.rs create mode 100644 rust/kernel/sync/mutex.rs create mode 100644 rust/kernel/sync/nowait.rs create mode 100644 rust/kernel/sync/revocable.rs create mode 100644 rust/kernel/sync/rwsem.rs create mode 100644 rust/kernel/sync/seqlock.rs create mode 100644 rust/kernel/sync/smutex.rs create mode 100644 rust/kernel/sync/spinlock.rs create mode 100644 rust/kernel/sysctl.rs create mode 100644 rust/kernel/task.rs create mode 100644 rust/kernel/types.rs create mode 100644 rust/kernel/user_ptr.rs create mode 100644 rust/macros/helpers.rs create mode 100644 rust/macros/lib.rs create mode 100644 rust/macros/module.rs create mode 100644 samples/rust/Kconfig create mode 100644 samples/rust/Makefile create mode 100644 samples/rust/hostprogs/.gitignore create mode 100644 samples/rust/hostprogs/Makefile create mode 100644 samples/rust/hostprogs/a.rs create mode 100644 samples/rust/hostprogs/b.rs create mode 100644 samples/rust/hostprogs/single.rs create mode 100644 samples/rust/rust_chrdev.rs create mode 100644 samples/rust/rust_minimal.rs create mode 100644 samples/rust/rust_miscdev.rs create mode 100644 samples/rust/rust_module_parameters.rs create mode 100644 samples/rust/rust_netfilter.rs create mode 100644 samples/rust/rust_platform.rs create mode 100644 samples/rust/rust_print.rs create mode 100644 samples/rust/rust_random.rs create mode 100644 samples/rust/rust_semaphore.rs create mode 100644 samples/rust/rust_semaphore_c.c create mode 100644 samples/rust/rust_stack_probing.rs create mode 100644 samples/rust/rust_sync.rs create mode 100755 scripts/cc-version.sh create mode 100755 scripts/generate_rust_analyzer.py create mode 100644 scripts/generate_rust_target.rs create mode 100755 scripts/is_rust_module.sh create mode 100755 scripts/min-tool-version.sh create mode 100644 scripts/rust-is-available-bindgen-libclang.h create mode 100755 scripts/rust-is-available.sh create mode 100755 scripts/rustdoc_test_builder.py create mode 100755 scripts/rustdoc_test_gen.py -- 2.20.1

1 24

[PATCH openEuler-1.0-LTS 1/5] mbcache: Don't reclaim used entries
by Yongqiang Liu 27 Jul '22

27 Jul '22

From: Jan Kara <jack(a)suse.cz> hulk inclusion category: bugfix bugzilla: 186975, https://gitee.com/openeuler/kernel/issues/I5HT6F CVE: NA Reference: https://patchwork.ozlabs.org/project/linux-ext4/list/?series=309169 -------------------------------- Do not reclaim entries that are currently used by somebody from a shrinker. Firstly, these entries are likely useful. Secondly, we will need to keep such entries to protect pending increment of xattr block refcount. CC: stable(a)vger.kernel.org Fixes: 82939d7999df ("ext4: convert to mbcache2") Signed-off-by: Jan Kara <jack(a)suse.cz> Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> Signed-off-by: Yongqiang Liu <liuyongqiang13(a)huawei.com> --- fs/mbcache.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/mbcache.c b/fs/mbcache.c index 081ccf0caee3..12203e5a91e7 100644 --- a/fs/mbcache.c +++ b/fs/mbcache.c @@ -287,7 +287,7 @@ static unsigned long mb_cache_shrink(struct mb_cache *cache, while (nr_to_scan-- && !list_empty(&cache->c_list)) { entry = list_first_entry(&cache->c_list, struct mb_cache_entry, e_list); - if (entry->e_referenced) { + if (entry->e_referenced || atomic_read(&entry->e_refcnt) > 2) { entry->e_referenced = 0; list_move_tail(&entry->e_list, &cache->c_list); continue; @@ -301,6 +301,14 @@ static unsigned long mb_cache_shrink(struct mb_cache *cache, spin_unlock(&cache->c_list_lock); head = mb_cache_entry_head(cache, entry->e_key); hlist_bl_lock(head); + /* Now a reliable check if the entry didn't get used... */ + if (atomic_read(&entry->e_refcnt) > 2) { + hlist_bl_unlock(head); + spin_lock(&cache->c_list_lock); + list_add_tail(&entry->e_list, &cache->c_list); + cache->c_entry_count++; + continue; + } if (!hlist_bl_unhashed(&entry->e_hash_list)) { hlist_bl_del_init(&entry->e_hash_list); atomic_dec(&entry->e_refcnt); -- 2.25.1

1 4