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authorAnna-Maria Gleixner <anna-maria@linutronix.de>2018-08-22 06:55:35 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-22 19:52:46 +0200
commit060288a7320b2837a8ff2af1b3643bdbd5e568f6 (patch)
tree3d936151c374ab20a12fe0268bf9c6a815da09a4 /mm/mlock.c
parentbdi: use refcount_t for reference counting instead atomic_t (diff)
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bdi: use irqsave variant of refcount_dec_and_lock()
The irqsave variant of refcount_dec_and_lock handles irqsave/restore when taking/releasing the spin lock. With this variant the call of local_irq_save/restore is no longer required. [bigeasy@linutronix.de: s@atomic_dec_and_lock@refcount_dec_and_lock@g] Link: http://lkml.kernel.org/r/20180703200141.28415-5-bigeasy@linutronix.de Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mlock.c')
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