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xfs: xfs_syncd_stop must die

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xfs_syncd_start and xfs_syncd_stop tie a bunch of unrelated
functionailty together that actually have different start and stop
requirements. Kill these functions and open code the start/stop
methods for each of the background functions.

Subsequent patches will move the start/stop functions around to the
correct places to avoid races and shutdown issues.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Dave Chinner 2012-10-08 21:55:59 +11:00 committed by Ben Myers
parent ddffeb8c4d
commit 33c7a2bc48
3 changed files with 26 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
fs/xfs/xfs_super.c
View File

@ -1008,7 +1008,11 @@ xfs_fs_put_super(
xfs_filestream_unmount(mp);
cancel_delayed_work_sync(&mp->m_sync_work);
xfs_unmountfs(mp);
xfs_syncd_stop(mp);
cancel_delayed_work_sync(&mp->m_sync_work);
cancel_delayed_work_sync(&mp->m_reclaim_work);
cancel_work_sync(&mp->m_flush_work);
xfs_freesb(mp);
xfs_icsb_destroy_counters(mp);
xfs_destroy_mount_workqueues(mp);
@ -1384,9 +1388,11 @@ xfs_fs_fill_super(
sb->s_time_gran = 1;
set_posix_acl_flag(sb);
error = xfs_syncd_init(mp);
if (error)
goto out_filestream_unmount;
INIT_WORK(&mp->m_flush_work, xfs_flush_worker);
INIT_DELAYED_WORK(&mp->m_sync_work, xfs_sync_worker);
INIT_DELAYED_WORK(&mp->m_reclaim_work, xfs_reclaim_worker);
xfs_syncd_queue_sync(mp);
error = xfs_mountfs(mp);
if (error)
@ -1409,8 +1415,10 @@ xfs_fs_fill_super(
return 0;
out_syncd_stop:
xfs_syncd_stop(mp);
out_filestream_unmount:
cancel_delayed_work_sync(&mp->m_sync_work);
cancel_delayed_work_sync(&mp->m_reclaim_work);
cancel_work_sync(&mp->m_flush_work);
xfs_filestream_unmount(mp);
out_free_sb:
xfs_freesb(mp);
@ -1429,7 +1437,10 @@ out_destroy_workqueues:
out_unmount:
xfs_filestream_unmount(mp);
xfs_unmountfs(mp);
xfs_syncd_stop(mp);
cancel_delayed_work_sync(&mp->m_sync_work);
cancel_delayed_work_sync(&mp->m_reclaim_work);
cancel_work_sync(&mp->m_flush_work);
goto out_free_sb;
}

30
fs/xfs/xfs_sync.c
View File

@ -370,7 +370,7 @@ xfs_quiesce_attr(
xfs_buf_unlock(mp->m_sb_bp);
}
static void
void
xfs_syncd_queue_sync(
struct xfs_mount *mp)
{
@ -383,7 +383,7 @@ xfs_syncd_queue_sync(
* disk quotas. We might need to cover the log to indicate that the
* filesystem is idle and not frozen.
*/
STATIC void
void
xfs_sync_worker(
struct work_struct *work)
{
@ -445,7 +445,7 @@ xfs_syncd_queue_reclaim(
* goes low. It scans as quickly as possible avoiding locked inodes or those
* already being flushed, and once done schedules a future pass.
*/
STATIC void
void
xfs_reclaim_worker(
struct work_struct *work)
{
@ -478,7 +478,7 @@ xfs_flush_inodes(
flush_work(&mp->m_flush_work);
}
STATIC void
void
xfs_flush_worker(
struct work_struct *work)
{
@ -489,28 +489,6 @@ xfs_flush_worker(
xfs_sync_data(mp, SYNC_TRYLOCK | SYNC_WAIT);
}
int
xfs_syncd_init(
struct xfs_mount *mp)
{
INIT_WORK(&mp->m_flush_work, xfs_flush_worker);
INIT_DELAYED_WORK(&mp->m_sync_work, xfs_sync_worker);
INIT_DELAYED_WORK(&mp->m_reclaim_work, xfs_reclaim_worker);
xfs_syncd_queue_sync(mp);
return 0;
}
void
xfs_syncd_stop(
struct xfs_mount *mp)
{
cancel_delayed_work_sync(&mp->m_sync_work);
cancel_delayed_work_sync(&mp->m_reclaim_work);
cancel_work_sync(&mp->m_flush_work);
}
void
__xfs_inode_set_reclaim_tag(
struct xfs_perag *pag,

6
fs/xfs/xfs_sync.h
View File

@ -26,8 +26,10 @@ struct xfs_perag;
extern struct workqueue_struct *xfs_syncd_wq; /* sync workqueue */
int xfs_syncd_init(struct xfs_mount *mp);
void xfs_syncd_stop(struct xfs_mount *mp);
void xfs_syncd_queue_sync(struct xfs_mount *mp);
void xfs_sync_worker(struct work_struct *work);
void xfs_flush_worker(struct work_struct *work);
void xfs_reclaim_worker(struct work_struct *work);
int xfs_quiesce_data(struct xfs_mount *mp);
void xfs_quiesce_attr(struct xfs_mount *mp);