From a49fb4c3d035ab516507b31ec3bd49263caee14d Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Mon, 7 Feb 2011 18:12:15 +0200 Subject: exofs: deprecate the commands pending counter One leftover from the days of IBM's original code, is an SB counter that counts in-flight asynchronous commands. And a piece of code that waits for the counter to reach zero at unmount. I guess it might have been needed then, cause of some reference missing or something. I'm not removing it yet but am putting a warning message if ever this counter triggers at unmount. If I'll never see it triggers or reported I'll remove the counter for good. (I had this print as a debug output for a long time and never had it trigger) Signed-off-by: Boaz Harrosh --- fs/exofs/super.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'fs/exofs') diff --git a/fs/exofs/super.c b/fs/exofs/super.c index 5eb0851e548..06065bd37fc 100644 --- a/fs/exofs/super.c +++ b/fs/exofs/super.c @@ -409,6 +409,10 @@ static void exofs_put_super(struct super_block *sb) for (num_pend = atomic_read(&sbi->s_curr_pending); num_pend > 0; num_pend = atomic_read(&sbi->s_curr_pending)) { wait_queue_head_t wq; + + printk(KERN_NOTICE "%s: !!Pending operations in flight. " + "This is a BUG. please report to osd-dev@open-osd.org\n", + __func__); init_waitqueue_head(&wq); wait_event_timeout(wq, (atomic_read(&sbi->s_curr_pending) == 0), -- cgit v1.2.3