Btrfs: convert nested spin_lock_irqsave to spin_lock
authorJulia Lawall <julia@diku.dk>
Wed, 22 Jul 2009 20:49:00 +0000 (16:49 -0400)
committerChris Mason <chris.mason@oracle.com>
Wed, 22 Jul 2009 20:49:00 +0000 (16:49 -0400)
commit29c5e8ce01f9dad7e24b99c21e4f836d6b0289e0
treeca5628ea861a4fdb875e6cc90878853ad74091f2
parent4a8c9a62d7f7f058eed4b8a6f2c890a887778093
Btrfs: convert nested spin_lock_irqsave to spin_lock

If spin_lock_irqsave is called twice in a row with the same second
argument, the interrupt state at the point of the second call overwrites
the value saved by the first call.  Indeed, the second call does not need
to save the interrupt state, so it is changed to a simple spin_lock.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/async-thread.c