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authorIngo Molnar <mingo@elte.hu>2011-03-04 11:12:24 +0100
committerIngo Molnar <mingo@elte.hu>2011-03-04 11:12:26 +0100
commite0a92c17470775cd85bac52f5372ccc3dc58254a (patch)
tree9339da8754084bed50b941b018706b75482025cb /mm/memory.c
parent544b4a1f309d18f40969dbab7e08bafd136b2f55 (diff)
parent0c3b9168017cbad2c4af3dd65ec93fe646eeaa62 (diff)
Merge branch 'sched/urgent' into sched/core
Merge reason: Add fixes before applying dependent patches. 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);