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authorMiklos Szeredi <mszeredi@suse.cz>2008-07-01 15:01:26 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2008-07-26 20:53:25 -0400
commit9767d74957450da6365c363d69e3d02d605d7375 (patch)
tree913afe491d13b42b0cfcb540569080bba4725dfd /fs/attr.c
parent88b387824fdaecb6ba0f471acf0aadf7d24739fd (diff)
downloadvexpress-lsk-9767d74957450da6365c363d69e3d02d605d7375.tar.gz
[patch 1/4] vfs: utimes: move owner check into inode_change_ok()
Add a new ia_valid flag: ATTR_TIMES_SET, to handle the UTIMES_OMIT/UTIMES_NOW and UTIMES_NOW/UTIMES_OMIT cases. In these cases neither ATTR_MTIME_SET nor ATTR_ATIME_SET is in the flags, yet the POSIX draft specifies that permission checking is performed the same way as if one or both of the times was explicitly set to a timestamp. See the path "vfs: utimensat(): fix error checking for {UTIME_NOW,UTIME_OMIT} case" by Michael Kerrisk for the patch introducing this behavior. This is a cleanup, as well as allowing filesystems (NFS/fuse/...) to perform their own permission checking instead of the default. CC: Ulrich Drepper <drepper@redhat.com> CC: Michael Kerrisk <mtk.manpages@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/attr.c')
-rw-r--r--fs/attr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/attr.c b/fs/attr.c
index 966b73e25f8..765fc75fab3 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -51,7 +51,7 @@ int inode_change_ok(struct inode *inode, struct iattr *attr)
}
/* Check for setting the inode time. */
- if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
+ if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)) {
if (!is_owner_or_cap(inode))
goto error;
}