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authorChris Metcalf <cmetcalf@tilera.com>2011-03-17 14:14:12 -0400
committerChris Metcalf <cmetcalf@tilera.com>2011-03-17 14:14:12 -0400
commit325d1605542960903c88409b199734a3d8fc6612 (patch)
tree9d8eeed393a3b5dcadd1ddb6b76634b464fd6bc7 /mm/memory.c
parent3c5ead52ed68406c0ee789024c4ae581be8bcee4 (diff)
parent521cb40b0c44418a4fd36dc633f575813d59a43d (diff)
Merge tag 'v2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus
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);