[PATCH] knfsd: fix setattr-on-symlink error return
This is a somewhat cosmetic fix to keep the SpecFS validation test from
complaining.
SpecFS want's to try chmod on symlinks, and ext3 and reiser (at least) return
ENOTSUPP.
Probably both sides are being silly, but it is easiest to simply make it a
non-issue and filter out chmod requests on symlinks at the nfsd level.
Signed-off-by: Olaf Kirch <okir@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 4f2cd3d..af7c3c3 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -254,12 +254,19 @@
/* Get inode */
err = fh_verify(rqstp, fhp, ftype, accmode);
- if (err || !iap->ia_valid)
+ if (err)
goto out;
dentry = fhp->fh_dentry;
inode = dentry->d_inode;
+ /* Ignore any mode updates on symlinks */
+ if (S_ISLNK(inode->i_mode))
+ iap->ia_valid &= ~ATTR_MODE;
+
+ if (!iap->ia_valid)
+ goto out;
+
/* NFSv2 does not differentiate between "set-[ac]time-to-now"
* which only requires access, and "set-[ac]time-to-X" which
* requires ownership.