Commit 07140125 authored Nov 23, 2012 by Wang Sheng-Hui Committed by Chris Mason Dec 16, 2012

Btrfs: do not warn_on io_ctl->cur in io_ctl_map_page



io_ctl_map_page is called by many functions in free-space-cache.
In most scenarios, the ->cur is not null, e.g. io_ctl_add_entry.
I think we'd better remove the warn_on here.

Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

parent 3f6bcfbd

fs/btrfs/free-space-cache.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -307,7 +307,6 @@ static void io_ctl_unmap_page(struct io_ctl *io_ctl)

		static void io_ctl_map_page(struct io_ctl *io_ctl, int clear)
		{
		WARN_ON(io_ctl->cur);
		BUG_ON(io_ctl->index >= io_ctl->num_pages);
		io_ctl->page = io_ctl->pages[io_ctl->index++];
		io_ctl->cur = kmap(io_ctl->page);