The patch titled
Subject: lib-scatterlist-use-page-iterator-in-the-mapping-iterator-fix-fix
has been added to the -mm tree. Its filename is
lib-scatterlist-use-page-iterator-in-the-mapping-iterator-fix-fix.patch
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------------------------------------------------------
From: Imre Deak <imre.deak@xxxxxxxxx>
Subject: lib-scatterlist-use-page-iterator-in-the-mapping-iterator-fix-fix
- Fix the mapping size to be page-size limited. Thanks to Stephen Warren
for tracking down the bug.
Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx>
Cc: Maxim Levitsky <maximlevitsky@xxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: James Hogan <james.hogan@xxxxxxxxxx>
Cc: Stephen Warren <swarren@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/scatterlist.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN lib/scatterlist.c~lib-scatterlist-use-page-iterator-in-the-mapping-iterator-fix-fix lib/scatterlist.c
--- a/lib/scatterlist.c~lib-scatterlist-use-page-iterator-in-the-mapping-iterator-fix-fix
+++ a/lib/scatterlist.c
@@ -493,6 +493,8 @@ bool sg_miter_next(struct sg_mapping_ite
miter->__offset = pgoffset ? 0 : sg->offset;
miter->__remaining = sg->offset + sg->length -
(pgoffset << PAGE_SHIFT) - miter->__offset;
+ miter->__remaining = min_t(unsigned long, miter->__remaining,
+ PAGE_SIZE - miter->__offset);
}
miter->page = miter->piter.page;
miter->consumed = miter->length = miter->__remaining;
_
Patches currently in -mm which might be from imre.deak@xxxxxxxxx are
linux-next.patch
lib-scatterlist-add-simple-page-iterator.patch
lib-scatterlist-use-page-iterator-in-the-mapping-iterator.patch
lib-scatterlist-use-page-iterator-in-the-mapping-iterator-fix.patch
lib-scatterlist-use-page-iterator-in-the-mapping-iterator-fix-fix.patch
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