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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/ramfs
parentdb78b877f7744bec4a9d9f9e7d10da3931d7cd39 (diff)
downloadlwn-2c27c65ed0696f0b5df2dad2cf6462d72164d547.tar.gz
lwn-2c27c65ed0696f0b5df2dad2cf6462d72164d547.zip
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/ramfs')
-rw-r--r--fs/ramfs/file-nommu.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c
index 8d44f0347b27..9eead2c796b7 100644
--- a/fs/ramfs/file-nommu.c
+++ b/fs/ramfs/file-nommu.c
@@ -146,9 +146,8 @@ static int ramfs_nommu_resize(struct inode *inode, loff_t newsize, loff_t size)
return ret;
}
- ret = simple_setsize(inode, newsize);
-
- return ret;
+ truncate_setsize(inode, newsize);
+ return 0;
}
/*****************************************************************************/