From 3cbb1c8e1a4787d3dc2951b7615d7bb3788c49a0 Mon Sep 17 00:00:00 2001 From: Milind Arun Choudhary Date: Thu, 26 Apr 2007 07:30:29 -0500 Subject: JFS: use __set_current_state() use __set_current_state(TASK_*) instead of current->state = TASK_* Signed-off-by: Milind Arun Choudhary Signed-off-by: Andrew Morton Signed-off-by: Dave Kleikamp --- fs/jfs/jfs_logmgr.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/jfs/jfs_logmgr.c') diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c index 5065baa530b..ff7f1beec30 100644 --- a/fs/jfs/jfs_logmgr.c +++ b/fs/jfs/jfs_logmgr.c @@ -1590,7 +1590,7 @@ void jfs_flush_journal(struct jfs_log *log, int wait) set_current_state(TASK_UNINTERRUPTIBLE); LOGGC_UNLOCK(log); schedule(); - current->state = TASK_RUNNING; + __set_current_state(TASK_RUNNING); LOGGC_LOCK(log); remove_wait_queue(&target->gcwait, &__wait); } @@ -2361,7 +2361,7 @@ int jfsIOWait(void *arg) } else { set_current_state(TASK_INTERRUPTIBLE); schedule(); - current->state = TASK_RUNNING; + __set_current_state(TASK_RUNNING); } } while (!kthread_should_stop()); -- cgit v1.2.3 From 05ec9e26be1f668ccba4ca54d9a4966c6208c611 Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Sat, 5 May 2007 14:24:05 -0500 Subject: JFS: Fix race waking up jfsIO kernel thread It's possible for a journal I/O request to be added to the log_redrive queue and the jfsIO thread to be awakened after the thread releases log_redrive_lock but before it sets its state to TASK_INTERRUPTIBLE. The jfsIO thread should set the state before giving up the spinlock, so the waking thread will really wake it. Signed-off-by: Dave Kleikamp --- fs/jfs/jfs_logmgr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'fs/jfs/jfs_logmgr.c') diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c index ff7f1beec30..16c62680fcd 100644 --- a/fs/jfs/jfs_logmgr.c +++ b/fs/jfs/jfs_logmgr.c @@ -2354,12 +2354,13 @@ int jfsIOWait(void *arg) lbmStartIO(bp); spin_lock_irq(&log_redrive_lock); } - spin_unlock_irq(&log_redrive_lock); if (freezing(current)) { + spin_unlock_irq(&log_redrive_lock); refrigerator(); } else { set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irq(&log_redrive_lock); schedule(); __set_current_state(TASK_RUNNING); } -- cgit v1.2.3