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mm/vmalloc.c: improve vfree() kerneldoc

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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>
This commit is contained in:
Andrey Ryabinin 2018-10-26 15:07:03 -07:00 committed by Linus Torvalds
parent 52414d3302
commit 3ca4ea3a7a
1 changed files with 2 additions and 0 deletions
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mm/vmalloc.c
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@ -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)