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NFS Client Bugfixes for Linux 5.17-rc5

Browse source 
- Other Fixes:
   - Fix unnecessary changeattr revalidations
   - Fix resolving symlinks during directory lookups
   - Don't report writeback errors in nfs_getattr()
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Merge tag 'nfs-for-5.17-3' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client bugfixes from Anna Schumaker:

 - Fix unnecessary changeattr revalidations

 - Fix resolving symlinks during directory lookups

 - Don't report writeback errors in nfs_getattr()

* tag 'nfs-for-5.17-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFS: Do not report writeback errors in nfs_getattr()
  NFS: LOOKUP_DIRECTORY is also ok with symlinks
  NFS: Remove an incorrect revalidation in nfs4_update_changeattr_locked()
This commit is contained in:
Linus Torvalds 2022-02-18 16:24:44 -08:00
commit 4f12b742eb
3 changed files with 6 additions and 10 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
fs/nfs/dir.c
View file

@ -2010,14 +2010,14 @@ no_open:
if (!res) {
inode = d_inode(dentry);
if ((lookup_flags & LOOKUP_DIRECTORY) && inode &&
!S_ISDIR(inode->i_mode))
!(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)))
res = ERR_PTR(-ENOTDIR);
else if (inode && S_ISREG(inode->i_mode))
res = ERR_PTR(-EOPENSTALE);
} else if (!IS_ERR(res)) {
inode = d_inode(res);
if ((lookup_flags & LOOKUP_DIRECTORY) && inode &&
!S_ISDIR(inode->i_mode)) {
!(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))) {
dput(res);
res = ERR_PTR(-ENOTDIR);
} else if (inode && S_ISREG(inode->i_mode)) {

9
fs/nfs/inode.c
View file

@ -853,12 +853,9 @@ int nfs_getattr(struct user_namespace *mnt_userns, const struct path *path,
}
/* Flush out writes to the server in order to update c/mtime. */
if ((request_mask & (STATX_CTIME|STATX_MTIME)) &&
S_ISREG(inode->i_mode)) {
err = filemap_write_and_wait(inode->i_mapping);
if (err)
goto out;
}
if ((request_mask & (STATX_CTIME | STATX_MTIME)) &&
S_ISREG(inode->i_mode))
filemap_write_and_wait(inode->i_mapping);
/*
* We may force a getattr if the user cares about atime.

3
fs/nfs/nfs4proc.c
View file

@ -1229,8 +1229,7 @@ nfs4_update_changeattr_locked(struct inode *inode,
NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL |
NFS_INO_INVALID_SIZE | NFS_INO_INVALID_OTHER |
NFS_INO_INVALID_BLOCKS | NFS_INO_INVALID_NLINK |
NFS_INO_INVALID_MODE | NFS_INO_INVALID_XATTR |
NFS_INO_REVAL_PAGECACHE;
NFS_INO_INVALID_MODE | NFS_INO_INVALID_XATTR;
nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
}
nfsi->attrtimeo_timestamp = jiffies;