diff options
| author | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:51:56 -0800 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:51:56 -0800 |
| commit | 68529c0f36074be88ee937634fb9433e69c96388 (patch) | |
| tree | 00c842c0eff6a2b946e1c11a1bdf2d632535e0a7 /mm/page_alloc.c | |
| parent | f9a10833c7a12ce1244685eba88848bb88bbd43f (diff) | |
| parent | 3ac6e2e8106ac304c56b9435c907b2b3bda27a09 (diff) | |
Merge branch 'korg-android-tegra-3.1' into after-upstream-android
Conflicts:
arch/arm/mach-tegra/Kconfig
arch/arm/mach-tegra/board-ventana.c
drivers/misc/Kconfig
drivers/video/tegra/dc/hdmi.c
Signed-off-by: Dan Willemsen <dwillemsen@nvidia.com>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6e8ecb6e021c..75cd8d74a1a5 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -127,6 +127,20 @@ void pm_restrict_gfp_mask(void) saved_gfp_mask = gfp_allowed_mask; gfp_allowed_mask &= ~GFP_IOFS; } + +static bool pm_suspending(void) +{ + if ((gfp_allowed_mask & GFP_IOFS) == GFP_IOFS) + return false; + return true; +} + +#else + +static bool pm_suspending(void) +{ + return false; +} #endif /* CONFIG_PM_SLEEP */ #ifdef CONFIG_HUGETLB_PAGE_SIZE_VARIABLE @@ -176,6 +190,7 @@ static char * const zone_names[MAX_NR_ZONES] = { }; int min_free_kbytes = 1024; +int min_free_order_shift = 1; static unsigned long __meminitdata nr_kernel_pages; static unsigned long __meminitdata nr_all_pages; @@ -1469,7 +1484,7 @@ static bool __zone_watermark_ok(struct zone *z, int order, unsigned long mark, free_pages -= z->free_area[o].nr_free << o; /* Require fewer higher order pages to be free */ - min >>= 1; + min >>= min_free_order_shift; if (free_pages <= min) return false; @@ -2207,6 +2222,14 @@ rebalance: goto restart; } + + /* + * Suspend converts GFP_KERNEL to __GFP_WAIT which can + * prevent reclaim making forward progress without + * invoking OOM. Bail if we are suspending + */ + if (pm_suspending()) + goto nopage; } /* Check if we should retry the allocation */ |