Commit a49fb4c3 authored Feb 07, 2011 by Boaz Harrosh

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 <bharrosh@panasas.com>

parent 1cea312a

fs/exofs/super.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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),

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