zram: remove workqueue for freeing removed pending slot
authorMinchan Kim <minchan@kernel.org>
Thu, 30 Jan 2014 23:46:04 +0000 (15:46 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 31 Jan 2014 00:56:55 +0000 (16:56 -0800)
commitf614a9f48dedd2b80d1dc8bae8094842fcdb39dd
tree411b14762df0f6ad7261b5d6f6ad7c9bc28a2204
parent92967471b67163bb1654e9b7fe99449ab70a4aaa
zram: remove workqueue for freeing removed pending slot

Commit a0c516cbfc74 ("zram: don't grab mutex in zram_slot_free_noity")
introduced free request pending code to avoid scheduling by mutex under
spinlock and it was a mess which made code lenghty and increased
overhead.

Now, we don't need zram->lock any more to free slot so this patch
reverts it and then, tb_lock should protect it.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/block/zram/zram_drv.c
drivers/block/zram/zram_drv.h