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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-08-27 13:12:40 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-08-27 13:12:40 +1000
commitf480fe3916de2e2cbb6e384cb685f0f1d8272188 (patch)
tree141c60a2a263f1c01907e692d4aef1e6b699d8c7 /fs/buffer.c
parent4f0dbc2781b9dc457159b676289f874ab2dc3560 (diff)
parentf415c413f458837bd0c27086b79aca889f9435e4 (diff)
Merge commit 'origin/master' into next
Diffstat (limited to 'fs/buffer.c')
-rw-r--r--fs/buffer.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index a3ef091a45b..28f320fac4d 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1165,8 +1165,11 @@ void mark_buffer_dirty(struct buffer_head *bh)
if (!test_set_buffer_dirty(bh)) {
struct page *page = bh->b_page;
- if (!TestSetPageDirty(page))
- __set_page_dirty(page, page_mapping(page), 0);
+ if (!TestSetPageDirty(page)) {
+ struct address_space *mapping = page_mapping(page);
+ if (mapping)
+ __set_page_dirty(page, mapping, 0);
+ }
}
}