The patch titled
lib/scatterlist.c: fix kunmap() argument in sg_miter_stop()
has been added to the -mm tree. Its filename is
lib-scatterlistc-fix-kunmap-argument-in-sg_miter_stop.patch
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------------------------------------------------------
Subject: lib/scatterlist.c: fix kunmap() argument in sg_miter_stop()
From: Arjan van de Ven <arjan@xxxxxxxxxxxxx>
kunmap() takes as argument the struct page that orginally got kmap()'d,
however the sg_miter_stop() function passed it the kernel virtual address
instead, resulting in weird stuff.
Somehow I ended up fixing this bug by accident while looking for a bug in
the same area.
Reported-by: kerneloops.org
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
Cc: Hugh Dickins <hugh@xxxxxxxxxxx>
Cc: <stable@xxxxxxxxxx> [2.6.27.x]
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/scatterlist.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN lib/scatterlist.c~lib-scatterlistc-fix-kunmap-argument-in-sg_miter_stop lib/scatterlist.c
--- a/lib/scatterlist.c~lib-scatterlistc-fix-kunmap-argument-in-sg_miter_stop
+++ a/lib/scatterlist.c
@@ -395,7 +395,7 @@ void sg_miter_stop(struct sg_mapping_ite
WARN_ON(!irqs_disabled());
kunmap_atomic(miter->addr, KM_BIO_SRC_IRQ);
} else
- kunmap(miter->addr);
+ kunmap(miter->page);
miter->page = NULL;
miter->addr = NULL;
_
Patches currently in -mm which might be from arjan@xxxxxxxxxxxxx are
lib-scatterlistc-fix-kunmap-argument-in-sg_miter_stop.patch
mm-remove-the-might_sleep-from-lock_page.patch
linux-next.patch
jbd-improve-fsync-batching.patch
jbd-improve-fsync-batching-update.patch
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