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| author | Ralf Baechle <ralf@linux-mips.org> | 2014-03-31 18:17:33 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-03-31 18:17:33 +0200 |
| commit | ade63aada79c61bcd5f51cbd310f237399892268 (patch) | |
| tree | 4f8605528bfd9b6261679883974b9ac4870223dd /mm/compaction.c | |
| parent | MIPS: CPC: Use __raw_ memory access functions (diff) | |
| parent | MIPS: Hibernate: Flush TLB entries in swsusp_arch_resume() (diff) | |
| download | linux-ade63aada79c61bcd5f51cbd310f237399892268.tar.xz linux-ade63aada79c61bcd5f51cbd310f237399892268.zip | |
Merge branch '3.14-fixes' into mips-for-linux-next
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index b48c5259ea33..918577595ea8 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -251,7 +251,6 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, { int nr_scanned = 0, total_isolated = 0; struct page *cursor, *valid_page = NULL; - unsigned long nr_strict_required = end_pfn - blockpfn; unsigned long flags; bool locked = false; @@ -264,11 +263,12 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, nr_scanned++; if (!pfn_valid_within(blockpfn)) - continue; + goto isolate_fail; + if (!valid_page) valid_page = page; if (!PageBuddy(page)) - continue; + goto isolate_fail; /* * The zone lock must be held to isolate freepages. @@ -289,12 +289,10 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, /* Recheck this is a buddy page under lock */ if (!PageBuddy(page)) - continue; + goto isolate_fail; /* Found a free page, break it into order-0 pages */ isolated = split_free_page(page); - if (!isolated && strict) - break; total_isolated += isolated; for (i = 0; i < isolated; i++) { list_add(&page->lru, freelist); @@ -305,7 +303,15 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, if (isolated) { blockpfn += isolated - 1; cursor += isolated - 1; + continue; } + +isolate_fail: + if (strict) + break; + else + continue; + } trace_mm_compaction_isolate_freepages(nr_scanned, total_isolated); @@ -315,7 +321,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, * pages requested were isolated. If there were any failures, 0 is * returned and CMA will fail. */ - if (strict && nr_strict_required > total_isolated) + if (strict && blockpfn < end_pfn) total_isolated = 0; if (locked) |