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dquot: move dquot transfer responsibility into the filesystem

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Currently notify_change calls vfs_dq_transfer directly.  This means
we tie the quota code into the VFS.  Get rid of that and make the
filesystem responsible for the transfer.  Most filesystems already
do this, only ufs and udf need the code added, and for jfs it needs to
be enabled unconditionally instead of only when ACLs are enabled.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Christoph Hellwig 2010-03-03 09:05:02 -05:00 • committed by Jan Kara
parent 63936ddaa1
commit 759bfee658
8 changed files with 65 additions and 38 deletions
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23
fs/udf/file.c
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@ -34,6 +34,7 @@
#include <linux/errno.h>
#include <linux/smp_lock.h>
#include <linux/pagemap.h>
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
#include <linux/aio.h>
@ -217,6 +218,26 @@ const struct file_operations udf_file_operations = {
.llseek = generic_file_llseek,
};
static int udf_setattr(struct dentry *dentry, struct iattr *iattr)
{
struct inode *inode = dentry->d_inode;
int error;
error = inode_change_ok(inode, iattr);
if (error)
return error;
if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
(iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
error = vfs_dq_transfer(inode, iattr) ? -EDQUOT : 0;
if (error)
return error;
}
return inode_setattr(inode, iattr);
}
const struct inode_operations udf_file_inode_operations = {
.truncate = udf_truncate,
.truncate = udf_truncate,
.setattr = udf_setattr,
};