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authorIngo Molnar <mingo@elte.hu>2011-03-08 17:21:49 +0100
committerIngo Molnar <mingo@elte.hu>2011-03-08 17:21:52 +0100
commit86cb2ec7b22a0a89b8660110dc03321fadbef45f (patch)
treec4162b0ab7c4e3602e2b7a6a6fd47c55c3315fea /mm/memory.c
parent7f0030b211579939461468f25b80c73e293c46e0 (diff)
parenta5abba989deceb731047425812d268daf7536575 (diff)
Merge commit 'v2.6.38-rc8' into perf/core
Merge reason: Merge latest fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/memory.c')
-rw-r--r--mm/memory.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 8e8c1832486..5823698c2b7 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2648,6 +2648,7 @@ void unmap_mapping_range(struct address_space *mapping,
details.last_index = ULONG_MAX;
details.i_mmap_lock = &mapping->i_mmap_lock;
+ mutex_lock(&mapping->unmap_mutex);
spin_lock(&mapping->i_mmap_lock);
/* Protect against endless unmapping loops */
@@ -2664,6 +2665,7 @@ void unmap_mapping_range(struct address_space *mapping,
if (unlikely(!list_empty(&mapping->i_mmap_nonlinear)))
unmap_mapping_range_list(&mapping->i_mmap_nonlinear, &details);
spin_unlock(&mapping->i_mmap_lock);
+ mutex_unlock(&mapping->unmap_mutex);
}
EXPORT_SYMBOL(unmap_mapping_range);