The patch titled
Subject: mm/vmalloc.c: improve vfree() kerneldoc
has been added to the -mm tree. Its filename is
mm-vmalloc-improve-vfree-kerneldoc.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-vmalloc-improve-vfree-kerneldoc.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-vmalloc-improve-vfree-kerneldoc.patch
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------------------------------------------------------
From: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Subject: mm/vmalloc.c: improve vfree() kerneldoc
vfree() might sleep if called not in interrupt context. Explain that in
the comment.
Link: http://lkml.kernel.org/r/20180914130512.10394-2-aryabinin@xxxxxxxxxxxxx
Signed-off-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmalloc.c | 2 ++
1 file changed, 2 insertions(+)
--- a/mm/vmalloc.c~mm-vmalloc-improve-vfree-kerneldoc
+++ a/mm/vmalloc.c
@@ -1577,6 +1577,8 @@ void vfree_atomic(const void *addr)
* have CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG, but making the calling
* conventions for vfree() arch-depenedent would be a really bad idea)
*
+ * May sleep if called *not* from interrupt context.
+ *
* NOTE: assumes that the object at @addr has a size >= sizeof(llist_node)
*/
void vfree(const void *addr)
_
Patches currently in -mm which might be from aryabinin@xxxxxxxxxxxxx are
kvfree-fix-misleading-comment.patch
mm-vmalloc-improve-vfree-kerneldoc.patch
vfree-kvfree-add-debug-might-sleeps.patch
