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authorChristoph Hellwig <hch@lst.de>2010-06-04 11:30:04 +0200
committerAl Viro <viro@zeniv.linux.org.uk>2010-08-09 16:47:39 -0400
commit2c27c65ed0696f0b5df2dad2cf6462d72164d547 (patch)
tree7d9036e3dea98938f7fd7074366ee73929e9b2e5 /fs/adfs
parentdb78b877f7744bec4a9d9f9e7d10da3931d7cd39 (diff)
downloadlinux-2c27c65ed0696f0b5df2dad2cf6462d72164d547.tar.gz
check ATTR_SIZE contraints in inode_change_ok
Make sure we check the truncate constraints early on in ->setattr by adding those checks to inode_change_ok. Also clean up and document inode_change_ok to make this obvious. As a fallout we don't have to call inode_newsize_ok from simple_setsize and simplify it down to a truncate_setsize which doesn't return an error. This simplifies a lot of setattr implementations and means we use truncate_setsize almost everywhere. Get rid of fat_setsize now that it's trivial and mark ext2_setsize static to make the calling convention obvious. Keep the inode_newsize_ok in vmtruncate for now as all callers need an audit for its removal anyway. Note: setattr code in ecryptfs doesn't call inode_change_ok at all and needs a deeper audit, but that is left for later. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/adfs')
-rw-r--r--fs/adfs/inode.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c
index b3dec193036..65794b8fe79 100644
--- a/fs/adfs/inode.c
+++ b/fs/adfs/inode.c
@@ -333,10 +333,7 @@ adfs_notify_change(struct dentry *dentry, struct iattr *attr)
/* XXX: this is missing some actual on-disk truncation.. */
if (ia_valid & ATTR_SIZE)
- error = simple_setsize(inode, attr->ia_size);
-
- if (error)
- goto out;
+ truncate_setsize(inode, attr->ia_size);
if (ia_valid & ATTR_MTIME) {
inode->i_mtime = attr->ia_mtime;