From: Trond Myklebust <trond.myklebust@hammerspace.com> stable inclusion from stable-v5.10.140 commit 23c6f25a60435f85e1a442dd5492e96a260dd731 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I63FTT Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 156cd28562a4e8ca454d11b234d9f634a45d6390 ] The preferred behaviour is always to allocate struct nfs_fattr from the slab. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Reviewed-by: Wei Li <liwei391@huawei.com> --- fs/nfs/nfs4file.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index f12494e08267..33481c8fc131 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -318,7 +318,7 @@ static int read_name_gen = 1; static struct file *__nfs42_ssc_open(struct vfsmount *ss_mnt, struct nfs_fh *src_fh, nfs4_stateid *stateid) { - struct nfs_fattr fattr; + struct nfs_fattr *fattr = nfs_alloc_fattr(); struct file *filep, *res; struct nfs_server *server; struct inode *r_ino = NULL; @@ -329,9 +329,10 @@ static struct file *__nfs42_ssc_open(struct vfsmount *ss_mnt, server = NFS_SERVER(ss_mnt->mnt_root->d_inode); - nfs_fattr_init(&fattr); + if (!fattr) + return ERR_PTR(-ENOMEM); - status = nfs4_proc_getattr(server, src_fh, &fattr, NULL, NULL); + status = nfs4_proc_getattr(server, src_fh, fattr, NULL, NULL); if (status < 0) { res = ERR_PTR(status); goto out; @@ -344,7 +345,7 @@ static struct file *__nfs42_ssc_open(struct vfsmount *ss_mnt, goto out; snprintf(read_name, len, SSC_READ_NAME_BODY, read_name_gen++); - r_ino = nfs_fhget(ss_mnt->mnt_root->d_inode->i_sb, src_fh, &fattr, + r_ino = nfs_fhget(ss_mnt->mnt_root->d_inode->i_sb, src_fh, fattr, NULL); if (IS_ERR(r_ino)) { res = ERR_CAST(r_ino); @@ -389,6 +390,7 @@ static struct file *__nfs42_ssc_open(struct vfsmount *ss_mnt, out_free_name: kfree(read_name); out: + nfs_free_fattr(fattr); return res; out_stateowner: nfs4_put_state_owner(sp); -- 2.20.1