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quota: cleanup dquota sync functions (version 4)

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Currently the VFS calls vfs_dq_sync to sync out disk quotas for a given
superblock.  This is a small wrapper around sync_dquots which for the
case of a non-NULL superblock is a small wrapper around quota_sync_sb.

Just make quota_sync_sb global (rename it to sync_quota_sb) and call it
directly.  Also call it directly for those cases in quota.c that have a
superblock and leave sync_dquots purely an iterator over sync_quota_sb and
remove it's superblock argument.

To make this nicer move the check for the lack of a quota_sync method
from the callers into sync_quota_sb.

[folded build fix from Alexander Beregalov <a.beregalov@gmail.com>]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig
2009-04-27 16:43:54 +02:00
committed by Al Viro
parent 60b0680fa2
commit 850b201b08
3 changed files with 18 additions and 20 deletions
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11
include/linux/quotaops.h
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@@ -20,7 +20,7 @@ static inline struct quota_info *sb_dqopt(struct super_block *sb)
/*
* declaration of quota_function calls in kernel.
*/
void sync_dquots(struct super_block *sb, int type);
void sync_quota_sb(struct super_block *sb, int type);
int dquot_initialize(struct inode *inode, int type);
int dquot_drop(struct inode *inode);
@@ -253,12 +253,7 @@ static inline void vfs_dq_free_inode(struct inode *inode)
inode->i_sb->dq_op->free_inode(inode, 1);
}
/* The following two functions cannot be called inside a transaction */
static inline void vfs_dq_sync(struct super_block *sb)
{
sync_dquots(sb, -1);
}
/* Cannot be called inside a transaction */
static inline int vfs_dq_off(struct super_block *sb, int remount)
{
int ret = -ENOSYS;
@@ -334,7 +329,7 @@ static inline void vfs_dq_free_inode(struct inode *inode)
{
}
static inline void vfs_dq_sync(struct super_block *sb)
static inline void sync_quota_sb(struct super_block *sb, int type)
{
}