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quota: move unmount handling into the filesystem

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Currently the VFS calls into the quotactl interface for unmounting
filesystems.  This means filesystems with their own quota handling
can't easily distinguish between user-space originating quotaoff
and an unount.  Instead move the responsibily of the unmount handling
into the filesystem to be consistent with all other dquot handling.

Note that we do call dquot_disable a lot later now, e.g. after
a sync_filesystem.  But this is fine as the quota code does all its
writes via blockdev's mapping and that is synced even later.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Christoph Hellwig 2010-05-19 07:16:42 -04:00 • committed by Jan Kara
parent 0f0dd62fdd
commit e0ccfd959c
9 changed files with 14 additions and 16 deletions
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15
include/linux/quotaops.h
View file

@ -156,16 +156,6 @@ extern const struct quotactl_ops vfs_quotactl_ops;
#define sb_dquot_ops (&dquot_operations)
#define sb_quotactl_ops (&vfs_quotactl_ops)
/* Cannot be called inside a transaction */
static inline int vfs_dq_off(struct super_block *sb, int remount)
{
int ret = -ENOSYS;
if (sb->s_qcop && sb->s_qcop->quota_off)
ret = sb->s_qcop->quota_off(sb, -1, remount);
return ret;
}
#else
static inline int sb_has_quota_usage_enabled(struct super_block *sb, int type)
@ -232,11 +222,6 @@ static inline void dquot_free_inode(const struct inode *inode)
{
}
static inline int vfs_dq_off(struct super_block *sb, int remount)
{
return 0;
}
static inline int dquot_transfer(struct inode *inode, struct iattr *iattr)
{
return 0;