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author | Joel Fernandes <joelaf@google.com> | 2016-12-13 03:44:26 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-13 05:55:08 +0300 |
commit | 763b218ddfaf56761c19923beb7e16656f66ec62 (patch) | |
tree | d20c1ca842ce466541b1b98ed0fc5589f51a0897 /arch/powerpc/include/asm/book3s/64/pgtable.h | |
parent | f9e09977671b618aeb25ddc0d4c9a84d5b5cde9d (diff) | |
download | linux-763b218ddfaf56761c19923beb7e16656f66ec62.tar.xz |
mm: add preempt points into __purge_vmap_area_lazy()
Use cond_resched_lock to avoid holding the vmap_area_lock for a
potentially long time and thus creating bad latencies for various
workloads.
[hch: split from a larger patch by Joel, wrote the crappy changelog]
Link: http://lkml.kernel.org/r/1479474236-4139-11-git-send-email-hch@lst.de
Signed-off-by: Joel Fernandes <joelaf@google.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Jisheng Zhang <jszhang@marvell.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: John Dias <joaodias@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/pgtable.h')
0 files changed, 0 insertions, 0 deletions