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| author | Mikulas Patocka <mpatocka@redhat.com> | 2016-07-29 00:48:47 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-29 01:07:41 +0200 |
| commit | 7e4411bfe6dd29713f879717b433304a1992526d (patch) | |
| tree | c0a0f753e75420ca6186f5eccecccd61b3f6b59a /lib/iov_iter.c | |
| parent | Revert "mm, mempool: only set __GFP_NOMEMALLOC if there are free elements" (diff) | |
| download | linux-7e4411bfe6dd29713f879717b433304a1992526d.tar.xz linux-7e4411bfe6dd29713f879717b433304a1992526d.zip | |
mm: add cond_resched() to generic_swapfile_activate()
generic_swapfile_activate() can take quite long time, it iterates over
all blocks of a file, so add cond_resched to it. I observed about 1
second stalls when activating a swapfile that was almost unfragmented -
this patch fixes it.
Link: http://lkml.kernel.org/r/alpine.LRH.2.02.1607221710580.4818@file01.intranet.prod.int.rdu2.redhat.com
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/iov_iter.c')
0 files changed, 0 insertions, 0 deletions