mainline inclusion from mainline-v6.7-rc1 commit ac085cfe57df2cc1d7a5c4c5e64b8780c8ad452f category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9195H CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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This patch imports a new field 'need_resv_pool' in struct 'ubi_attach_req' to control whether or not reserving free PEBs for filling pool/wl_pool.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217787 Signed-off-by: Zhihao Cheng chengzhihao1@huawei.com Signed-off-by: Richard Weinberger richard@nod.at --- drivers/mtd/ubi/cdev.c | 2 +- include/uapi/mtd/ubi-user.h | 4 +++- 2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index 98aa00344b29..0d8f04cf03c5 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -1042,7 +1042,7 @@ static long ctrl_cdev_ioctl(struct file *file, unsigned int cmd, mutex_lock(&ubi_devices_mutex); err = ubi_attach_mtd_dev(mtd, req.ubi_num, req.vid_hdr_offset, req.max_beb_per1024, !!req.disable_fm, - false); + !!req.need_resv_pool); mutex_unlock(&ubi_devices_mutex); if (err < 0) put_mtd_device(mtd); diff --git a/include/uapi/mtd/ubi-user.h b/include/uapi/mtd/ubi-user.h index dcb179de4358..e1571603175e 100644 --- a/include/uapi/mtd/ubi-user.h +++ b/include/uapi/mtd/ubi-user.h @@ -248,6 +248,7 @@ enum { * @max_beb_per1024: maximum expected number of bad PEB per 1024 PEBs * @padding: reserved for future, not used, has to be zeroed * @disable_fm: whether disable fastmap + * @need_resv_pool: whether reserve free pebs for filling pool/wl_pool * * This data structure is used to specify MTD device UBI has to attach and the * parameters it has to use. The number which should be assigned to the new UBI @@ -293,7 +294,8 @@ struct ubi_attach_req { __s32 vid_hdr_offset; __s16 max_beb_per1024; __s8 disable_fm; - __s8 padding[9]; + __s8 need_resv_pool; + __s8 padding[8]; };
/*