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authorAndrey Ryabinin <aryabinin@virtuozzo.com>2018-10-26 15:07:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-26 16:26:33 -0700
commit3ca4ea3a7a78a243ee9edf71a2736bc8fb26d70f (patch)
tree0858aeda4f7b13f5d097de0d523c04867b8bca14
parent52414d3302577bb60e4ba3c21b7957da7c7a8d21 (diff)
downloadlinux-3ca4ea3a7a78a243ee9edf71a2736bc8fb26d70f.tar.bz2
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@virtuozzo.com Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/vmalloc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index a728fc492557..d00d42d6bf79 100644
--- a/mm/vmalloc.c
+++ b/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)