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authorKonstantin Khlebnikov <khlebnikov@openvz.org>2013-02-22 16:34:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-02-23 17:50:17 -0800
commit08b52706d505658eac0962d215ff697f898bbc13 (patch)
treeb732ff7986179ab4e767ccbf5f6909a67cdb03c3 /mm
parentec8acf20afb8534ed511f6613dd2226b9e301010 (diff)
mm/rmap: rename anon_vma_unlock() => anon_vma_unlock_write()
The comment in commit 4fc3f1d66b1e ("mm/rmap, migration: Make rmap_walk_anon() and try_to_unmap_anon() more scalable") says: | Rename anon_vma_[un]lock() => anon_vma_[un]lock_write(), | to make it clearer that it's an exclusive write-lock in | that case - suggested by Rik van Riel. But that commit renames only anon_vma_lock() Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org> Cc: Ingo Molnar <mingo@kernel.org> Reviewed-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/huge_memory.c6
-rw-r--r--mm/mmap.c4
-rw-r--r--mm/mremap.c2
-rw-r--r--mm/rmap.c6
4 files changed, 9 insertions, 9 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index f40b2ce23d60..b1cc6591ed83 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1830,7 +1830,7 @@ int split_huge_page(struct page *page)
BUG_ON(PageCompound(page));
out_unlock:
- anon_vma_unlock(anon_vma);
+ anon_vma_unlock_write(anon_vma);
put_anon_vma(anon_vma);
out:
return ret;
@@ -2322,7 +2322,7 @@ static void collapse_huge_page(struct mm_struct *mm,
BUG_ON(!pmd_none(*pmd));
set_pmd_at(mm, address, pmd, _pmd);
spin_unlock(&mm->page_table_lock);
- anon_vma_unlock(vma->anon_vma);
+ anon_vma_unlock_write(vma->anon_vma);
goto out;
}
@@ -2330,7 +2330,7 @@ static void collapse_huge_page(struct mm_struct *mm,
* All pages are isolated and locked so anon_vma rmap
* can't run anymore.
*/
- anon_vma_unlock(vma->anon_vma);
+ anon_vma_unlock_write(vma->anon_vma);
__collapse_huge_page_copy(pte, new_page, vma, address, ptl);
pte_unmap(pte);
diff --git a/mm/mmap.c b/mm/mmap.c
index 28416f6b8dd5..318e121affda 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -809,7 +809,7 @@ again: remove_next = 1 + (end > next->vm_end);
anon_vma_interval_tree_post_update_vma(vma);
if (adjust_next)
anon_vma_interval_tree_post_update_vma(next);
- anon_vma_unlock(anon_vma);
+ anon_vma_unlock_write(anon_vma);
}
if (mapping)
mutex_unlock(&mapping->i_mmap_mutex);
@@ -3017,7 +3017,7 @@ static void vm_unlock_anon_vma(struct anon_vma *anon_vma)
if (!__test_and_clear_bit(0, (unsigned long *)
&anon_vma->root->rb_root.rb_node))
BUG();
- anon_vma_unlock(anon_vma);
+ anon_vma_unlock_write(anon_vma);
}
}
diff --git a/mm/mremap.c b/mm/mremap.c
index ebe27a8efa62..463a25705ac6 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -135,7 +135,7 @@ static void move_ptes(struct vm_area_struct *vma, pmd_t *old_pmd,
pte_unmap(new_pte - 1);
pte_unmap_unlock(old_pte - 1, old_ptl);
if (anon_vma)
- anon_vma_unlock(anon_vma);
+ anon_vma_unlock_write(anon_vma);
if (mapping)
mutex_unlock(&mapping->i_mmap_mutex);
}
diff --git a/mm/rmap.c b/mm/rmap.c
index 3d38edffda41..807c96bf0dc6 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -105,7 +105,7 @@ static inline void anon_vma_free(struct anon_vma *anon_vma)
*/
if (rwsem_is_locked(&anon_vma->root->rwsem)) {
anon_vma_lock_write(anon_vma);
- anon_vma_unlock(anon_vma);
+ anon_vma_unlock_write(anon_vma);
}
kmem_cache_free(anon_vma_cachep, anon_vma);
@@ -191,7 +191,7 @@ int anon_vma_prepare(struct vm_area_struct *vma)
avc = NULL;
}
spin_unlock(&mm->page_table_lock);
- anon_vma_unlock(anon_vma);
+ anon_vma_unlock_write(anon_vma);
if (unlikely(allocated))
put_anon_vma(allocated);
@@ -308,7 +308,7 @@ int anon_vma_fork(struct vm_area_struct *vma, struct vm_area_struct *pvma)
vma->anon_vma = anon_vma;
anon_vma_lock_write(anon_vma);
anon_vma_chain_link(vma, avc, anon_vma);
- anon_vma_unlock(anon_vma);
+ anon_vma_unlock_write(anon_vma);
return 0;