From: Dave Chinner <dchinner@redhat.com>
Date: Mon, 8 Oct 2012 10:55:59 +0000 (+1100)
Subject: xfs: xfs_syncd_stop must die
X-Git-Tag: firefly_0821_release~3680^2~1490^2~77
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=33c7a2bc48a81fa714572f8ce29f29bc17e6faf0;p=firefly-linux-kernel-4.4.55.git
xfs: xfs_syncd_stop must die
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>
---
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 26a09bd7f975..37d1bbce047d 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -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;
}
diff --git a/fs/xfs/xfs_sync.c b/fs/xfs/xfs_sync.c
index 9500caf15acf..7502f0621fb9 100644
--- a/fs/xfs/xfs_sync.c
+++ b/fs/xfs/xfs_sync.c
@@ -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,
diff --git a/fs/xfs/xfs_sync.h b/fs/xfs/xfs_sync.h
index 941202e7ac6e..3f59e5bed66b 100644
--- a/fs/xfs/xfs_sync.h
+++ b/fs/xfs/xfs_sync.h
@@ -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);