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| author | Steve Capper <steve.capper@linaro.org> | 2014-10-10 00:29:20 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-10-10 04:26:01 +0200 |
| commit | b8cd51afe05a98ef907e61c603d5c5b7ad6242d8 (patch) | |
| tree | b0da97d39da9ddd9dabf5f033e9c0555ec374e6e /net/ipv4/tcp_cubic.c | |
| parent | arm: mm: enable HAVE_RCU_TABLE_FREE logic (diff) | |
| download | linux-b8cd51afe05a98ef907e61c603d5c5b7ad6242d8.tar.xz linux-b8cd51afe05a98ef907e61c603d5c5b7ad6242d8.zip | |
arm: mm: enable RCU fast_gup
Activate the RCU fast_gup for ARM. We also need to force THP splits to
broadcast an IPI s.t. we block in the fast_gup page walker. As THP
splits are comparatively rare, this should not lead to a noticeable
performance degradation.
Some pre-requisite functions pud_write and pud_page are also added.
Signed-off-by: Steve Capper <steve.capper@linaro.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dann Frazier <dann.frazier@canonical.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Christoffer Dall <christoffer.dall@linaro.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/ipv4/tcp_cubic.c')
0 files changed, 0 insertions, 0 deletions