diff options
author | Olof Johansson <olof@lixom.net> | 2013-01-14 10:20:02 -0800 |
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committer | Olof Johansson <olof@lixom.net> | 2013-01-14 10:20:02 -0800 |
commit | 8d84981e395850aab31c3f2ca7e2738e03f671d7 (patch) | |
tree | 933425fddb23d28be802277471df3fe3f6c2711d /mm/memory.c | |
parent | 00c82d64405631967dca3890a9ce80ab35d04cc7 (diff) | |
parent | 77cc982f6a3b33a5aa058ad3b20cda8866db2948 (diff) |
Merge branch 'clocksource/cleanup' into next/cleanup
Clockevent cleanup series from Shawn Guo.
Resolved move/change conflict in mach-pxa/time.c due to the sys_timer
cleanup.
* clocksource/cleanup:
clocksource: use clockevents_config_and_register() where possible
ARM: use clockevents_config_and_register() where possible
clockevents: export clockevents_config_and_register for module use
+ sync to Linux 3.8-rc3
Signed-off-by: Olof Johansson <olof@lixom.net>
Conflicts:
arch/arm/mach-pxa/time.c
Diffstat (limited to 'mm/memory.c')
-rw-r--r-- | mm/memory.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c index e0a9b0ce4f10..bb1369f7b9b4 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -184,10 +184,14 @@ static int tlb_next_batch(struct mmu_gather *tlb) return 1; } + if (tlb->batch_count == MAX_GATHER_BATCH_COUNT) + return 0; + batch = (void *)__get_free_pages(GFP_NOWAIT | __GFP_NOWARN, 0); if (!batch) return 0; + tlb->batch_count++; batch->next = NULL; batch->nr = 0; batch->max = MAX_GATHER_BATCH; @@ -216,6 +220,7 @@ void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, bool fullmm) tlb->local.nr = 0; tlb->local.max = ARRAY_SIZE(tlb->__pages); tlb->active = &tlb->local; + tlb->batch_count = 0; #ifdef CONFIG_HAVE_RCU_TABLE_FREE tlb->batch = NULL; @@ -3706,6 +3711,14 @@ retry: if (pmd_trans_huge(orig_pmd)) { unsigned int dirty = flags & FAULT_FLAG_WRITE; + /* + * If the pmd is splitting, return and retry the + * the fault. Alternative: wait until the split + * is done, and goto retry. + */ + if (pmd_trans_splitting(orig_pmd)) + return 0; + if (pmd_numa(orig_pmd)) return do_huge_pmd_numa_page(mm, vma, address, orig_pmd, pmd); |