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smb: client: report correct st_size for SMB and NFS symlinks

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We can't rely on FILE_STANDARD_INFORMATION::EndOfFile for reparse
points as they will be always zero.  Set it to symlink target's length
as specified by POSIX.

This will make stat() family of syscalls return the correct st_size
for such files.

Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Paulo Alcantara 2023-11-28 16:37:19 -03:00 committed by Steve French
parent ef22bb800d
commit 9d63509547
1 changed files with 2 additions and 0 deletions
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2
fs/smb/client/inode.c
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@ -865,6 +865,8 @@ static void cifs_open_info_to_fattr(struct cifs_fattr *fattr,
out_reparse:
if (S_ISLNK(fattr->cf_mode)) {
if (likely(data->symlink_target))
fattr->cf_eof = strnlen(data->symlink_target, PATH_MAX);
fattr->cf_symlink_target = data->symlink_target;
data->symlink_target = NULL;
}