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| author | Kyle McMartin <kyle@redhat.com> | 2011-05-14 13:22:02 -0400 |
|---|---|---|
| committer | Kyle McMartin <kyle@redhat.com> | 2011-05-14 13:22:02 -0400 |
| commit | 09835821e3badcb450022aa692e42515c0067b11 (patch) | |
| tree | 756cec5e86024003f8cd2f7d08b9b5eaa1f161bf /mm-vmscan-correct-use-pgdat_balanced-in-sleeping_prematurely.patch | |
| parent | b86173d0ca012f419381c1112d5e49167f5cf914 (diff) | |
| download | kernel-09835821e3badcb450022aa692e42515c0067b11.tar.gz kernel-09835821e3badcb450022aa692e42515c0067b11.tar.xz kernel-09835821e3badcb450022aa692e42515c0067b11.zip | |
update to v2 of mel gorman's slub patchset
Diffstat (limited to 'mm-vmscan-correct-use-pgdat_balanced-in-sleeping_prematurely.patch')
| -rw-r--r-- | mm-vmscan-correct-use-pgdat_balanced-in-sleeping_prematurely.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/mm-vmscan-correct-use-pgdat_balanced-in-sleeping_prematurely.patch b/mm-vmscan-correct-use-pgdat_balanced-in-sleeping_prematurely.patch new file mode 100644 index 000000000..907a74d98 --- /dev/null +++ b/mm-vmscan-correct-use-pgdat_balanced-in-sleeping_prematurely.patch @@ -0,0 +1,48 @@ +From linux-fsdevel-owner@vger.kernel.org Fri May 13 10:03:38 2011 +From: Mel Gorman <mgorman@suse.de> +To: Andrew Morton <akpm@linux-foundation.org> +Cc: James Bottomley <James.Bottomley@HansenPartnership.com>, + Colin King <colin.king@canonical.com>, + Raghavendra D Prabhu <raghu.prabhu13@gmail.com>, + Jan Kara <jack@suse.cz>, Chris Mason <chris.mason@oracle.com>, + Christoph Lameter <cl@linux.com>, + Pekka Enberg <penberg@kernel.org>, + Rik van Riel <riel@redhat.com>, + Johannes Weiner <hannes@cmpxchg.org>, + linux-fsdevel <linux-fsdevel@vger.kernel.org>, + linux-mm <linux-mm@kvack.org>, + linux-kernel <linux-kernel@vger.kernel.org>, + linux-ext4 <linux-ext4@vger.kernel.org>, + Mel Gorman <mgorman@suse.de> +Subject: [PATCH 1/4] mm: vmscan: Correct use of pgdat_balanced in sleeping_prematurely +Date: Fri, 13 May 2011 15:03:21 +0100 +Message-Id: <1305295404-12129-2-git-send-email-mgorman@suse.de> +X-Mailing-List: linux-fsdevel@vger.kernel.org + +Johannes Weiner poined out that the logic in commit [1741c877: mm: +kswapd: keep kswapd awake for high-order allocations until a percentage +of the node is balanced] is backwards. Instead of allowing kswapd to go +to sleep when balancing for high order allocations, it keeps it kswapd +running uselessly. + +From-but-was-not-signed-off-by: Johannes Weiner <hannes@cmpxchg.org> +Will-sign-off-after-Johannes: Mel Gorman <mgorman@suse.de> +--- + mm/vmscan.c | 2 +- + 1 files changed, 1 insertions(+), 1 deletions(-) + +diff --git a/mm/vmscan.c b/mm/vmscan.c +index f6b435c..af24d1e 100644 +--- a/mm/vmscan.c ++++ b/mm/vmscan.c +@@ -2286,7 +2286,7 @@ static bool sleeping_prematurely(pg_data_t *pgdat, int order, long remaining, + * must be balanced + */ + if (order) +- return pgdat_balanced(pgdat, balanced, classzone_idx); ++ return !pgdat_balanced(pgdat, balanced, classzone_idx); + else + return !all_zones_ok; + } +-- +1.7.3.4 |