diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2012-02-28 12:26:06 +0000 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-02-28 12:26:10 +0000 |
| commit | e0e5ce59dc7b2685516219fdf44f01a8d53e0228 (patch) | |
| tree | 3c79c9c95589bba1b54f7c87172fcaa51d67a01b /mm | |
| parent | fdc24d4ba20499febb90ff17d3b75674026712f8 (diff) | |
| parent | 6f6ea93705f8519fb53dbc1516abe94d1787f4c4 (diff) | |
Merge branch 'imx/dt' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/dt
* 'imx/dt' of git://git.linaro.org/people/shawnguo/linux-2.6: (7 commits)
ARM: dts: imx6q-sabrelite: add vmmc-supply for usdhc
ARM: dts: imx6q-arm2: add vmmc-supply for usdhc
ARM: dts: imx51-babbage: update mc13892 device
ARM: dts: imx6q-sabrelite: add sgtl5000 audio codec
ARM: dts: imx6q-sabrelite: add 2p5v and 3p3v regulators
ARM i.MX5/6: Add dt support for generic boards
ARM: imx5: generate dtbs for imx5 boards
(update to Linux 3.3-rc5)
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memcontrol.c | 5 | ||||
| -rw-r--r-- | mm/nommu.c | 9 | ||||
| -rw-r--r-- | mm/page_alloc.c | 1 |
3 files changed, 12 insertions, 3 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 6728a7ae6f2d..228d6461c12a 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -4414,6 +4414,9 @@ static void mem_cgroup_usage_unregister_event(struct cgroup *cgrp, */ BUG_ON(!thresholds); + if (!thresholds->primary) + goto unlock; + usage = mem_cgroup_usage(memcg, type == _MEMSWAP); /* Check if a threshold crossed before removing */ @@ -4462,7 +4465,7 @@ swap_buffers: /* To be sure that nobody uses thresholds */ synchronize_rcu(); - +unlock: mutex_unlock(&memcg->thresholds_lock); } diff --git a/mm/nommu.c b/mm/nommu.c index b982290fd962..f59e170fceb4 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -696,9 +696,11 @@ static void add_vma_to_mm(struct mm_struct *mm, struct vm_area_struct *vma) if (vma->vm_file) { mapping = vma->vm_file->f_mapping; + mutex_lock(&mapping->i_mmap_mutex); flush_dcache_mmap_lock(mapping); vma_prio_tree_insert(vma, &mapping->i_mmap); flush_dcache_mmap_unlock(mapping); + mutex_unlock(&mapping->i_mmap_mutex); } /* add the VMA to the tree */ @@ -760,9 +762,11 @@ static void delete_vma_from_mm(struct vm_area_struct *vma) if (vma->vm_file) { mapping = vma->vm_file->f_mapping; + mutex_lock(&mapping->i_mmap_mutex); flush_dcache_mmap_lock(mapping); vma_prio_tree_remove(vma, &mapping->i_mmap); flush_dcache_mmap_unlock(mapping); + mutex_unlock(&mapping->i_mmap_mutex); } /* remove from the MM's tree and list */ @@ -775,8 +779,6 @@ static void delete_vma_from_mm(struct vm_area_struct *vma) if (vma->vm_next) vma->vm_next->vm_prev = vma->vm_prev; - - vma->vm_mm = NULL; } /* @@ -2052,6 +2054,7 @@ int nommu_shrink_inode_mappings(struct inode *inode, size_t size, high = (size + PAGE_SIZE - 1) >> PAGE_SHIFT; down_write(&nommu_region_sem); + mutex_lock(&inode->i_mapping->i_mmap_mutex); /* search for VMAs that fall within the dead zone */ vma_prio_tree_foreach(vma, &iter, &inode->i_mapping->i_mmap, @@ -2059,6 +2062,7 @@ int nommu_shrink_inode_mappings(struct inode *inode, size_t size, /* found one - only interested if it's shared out of the page * cache */ if (vma->vm_flags & VM_SHARED) { + mutex_unlock(&inode->i_mapping->i_mmap_mutex); up_write(&nommu_region_sem); return -ETXTBSY; /* not quite true, but near enough */ } @@ -2086,6 +2090,7 @@ int nommu_shrink_inode_mappings(struct inode *inode, size_t size, } } + mutex_unlock(&inode->i_mapping->i_mmap_mutex); up_write(&nommu_region_sem); return 0; } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d2186ecb36f7..a13ded1938f0 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5236,6 +5236,7 @@ void *__init alloc_large_system_hash(const char *tablename, max = ((unsigned long long)nr_all_pages << PAGE_SHIFT) >> 4; do_div(max, bucketsize); } + max = min(max, 0x80000000ULL); if (numentries > max) numentries = max; |