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| author | Thomas Gleixner <tglx@linutronix.de> | 2013-04-24 20:33:46 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2013-04-24 20:33:54 +0200 |
| commit | 6402c7dc2a19c19bd8cdc7d80878b850da418942 (patch) | |
| tree | cda2ea2df40442e2aa016119f3548cc504127ea8 /mm/mmap.c | |
| parent | 77c675ba18836802f6b73d2d773481d06ebc0f04 (diff) | |
| parent | 60d509fa6a9c4653a86ad830e4c4b30360b23f0e (diff) | |
| download | olio-linux-3.10-6402c7dc2a19c19bd8cdc7d80878b850da418942.tar.xz olio-linux-3.10-6402c7dc2a19c19bd8cdc7d80878b850da418942.zip | |
Merge branch 'linus' into timers/core
Reason: Get upstream fixes before adding conflicting code.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index 2664a47cec9..0db0de1c2fb 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1306,7 +1306,9 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, } addr = mmap_region(file, addr, len, vm_flags, pgoff); - if (!IS_ERR_VALUE(addr) && (vm_flags & VM_POPULATE)) + if (!IS_ERR_VALUE(addr) && + ((vm_flags & VM_LOCKED) || + (flags & (MAP_POPULATE | MAP_NONBLOCK)) == MAP_POPULATE)) *populate = len; return addr; } @@ -1938,7 +1940,7 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) /* Check the cache first. */ /* (Cache hit rate is typically around 35%.) */ - vma = mm->mmap_cache; + vma = ACCESS_ONCE(mm->mmap_cache); if (!(vma && vma->vm_end > addr && vma->vm_start <= addr)) { struct rb_node *rb_node; |