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| author | J. Bruce Fields <bfields@redhat.com> | 2011-09-20 17:19:26 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-11-09 00:16:44 -0500 |
| commit | 27ac0ffeac80ba6b9580529568d06144df044366 (patch) | |
| tree | a2e523716039784271250387d6e94ec4f01daec5 /fs/inode.c | |
| parent | 146a8595c6399ee6ab4b5cc34c0d28aa4835fdc5 (diff) | |
| download | linux-stable-27ac0ffeac80ba6b9580529568d06144df044366.tar.gz linux-stable-27ac0ffeac80ba6b9580529568d06144df044366.tar.bz2 linux-stable-27ac0ffeac80ba6b9580529568d06144df044366.zip | |
locks: break delegations on any attribute modification
NFSv4 uses leases to guarantee that clients can cache metadata as well
as data.
Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Cc: David Howells <dhowells@redhat.com>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Dustin Kirkland <dustin.kirkland@gazzang.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/inode.c')
| -rw-r--r-- | fs/inode.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/inode.c b/fs/inode.c index ce48c359ce9e..4bcdad3c9361 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1603,7 +1603,11 @@ static int __remove_suid(struct dentry *dentry, int kill) struct iattr newattrs; newattrs.ia_valid = ATTR_FORCE | kill; - return notify_change(dentry, &newattrs); + /* + * Note we call this on write, so notify_change will not + * encounter any conflicting delegations: + */ + return notify_change(dentry, &newattrs, NULL); } int file_remove_suid(struct file *file) |