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| author | NeilBrown <neilb@suse.de> | 2006-04-11 09:55:26 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-11 17:18:51 +0400 |
| commit | b5872b0dcc0501035d5ae53c60f8cbbb3798da8a (patch) | |
| tree | 8f0baf4103c0e5b5b97eea35cc9f416fdedd86cf /fs/nfsd | |
| parent | b905b7b0a054d2ab3e0c9304def998546c93f6b5 (diff) | |
| download | linux-b5872b0dcc0501035d5ae53c60f8cbbb3798da8a.tar.xz | |
[PATCH] knfsd: nfsd4: fix acl xattr length return
We should be using the length from the second vfs_getxattr, in case it
changed. (Note: there's still a small race here; we could end up returning
-ENOMEM if the length increased between the first and second call. I don't
know whether it's worth spending a lot of effort to fix that.)
This makes XFS ACLs usable on NFS exports, which they currently aren't, since
XFS appears to be returning a too-large value for vfs_getxattr() when it's
passed a NULL buffer. So there's probably an XFS bug here too, though since
getxattr with a NULL buffer is usually used to decide how much memory to
allocate, it may be a fairly harmless bug in most cases.
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>
Diffstat (limited to 'fs/nfsd')
| -rw-r--r-- | fs/nfsd/vfs.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 31018333dc38..6aa92d0e6876 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -371,7 +371,6 @@ out_nfserr: static ssize_t nfsd_getxattr(struct dentry *dentry, char *key, void **buf) { ssize_t buflen; - int error; buflen = vfs_getxattr(dentry, key, NULL, 0); if (buflen <= 0) @@ -381,10 +380,7 @@ static ssize_t nfsd_getxattr(struct dentry *dentry, char *key, void **buf) if (!*buf) return -ENOMEM; - error = vfs_getxattr(dentry, key, *buf, buflen); - if (error < 0) - return error; - return buflen; + return vfs_getxattr(dentry, key, *buf, buflen); } #endif |