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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/jffs2/fs.c
parentdb78b877f7744bec4a9d9f9e7d10da3931d7cd39 (diff)
downloadop-kernel-dev-2c27c65ed0696f0b5df2dad2cf6462d72164d547.zip
op-kernel-dev-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/jffs2/fs.c')
-rw-r--r--fs/jffs2/fs.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 459d39d..1b24266 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -169,13 +169,13 @@ int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
mutex_unlock(&f->sem);
jffs2_complete_reservation(c);
- /* We have to do the simple_setsize() without f->sem held, since
+ /* We have to do the truncate_setsize() without f->sem held, since
some pages may be locked and waiting for it in readpage().
We are protected from a simultaneous write() extending i_size
back past iattr->ia_size, because do_truncate() holds the
generic inode semaphore. */
if (ivalid & ATTR_SIZE && inode->i_size > iattr->ia_size) {
- simple_setsize(inode, iattr->ia_size);
+ truncate_setsize(inode, iattr->ia_size);
inode->i_blocks = (inode->i_size + 511) >> 9;
}
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