diff options
| author |   Andrew Morton <akpm@linux-foundation.org> | 2018-09-04 15:45:55 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2018-09-04 16:45:02 -0700 |
| commit | 04b8e946075d4582093e84f54dc1a004b227794d (patch) | |
| tree | ccde0c510c818d4ad216795d53070f4e4dab603b /mm | |
| parent | tools/vm/page-types.c: fix "defined but not used" warning (diff) | |
| download | linux-dev-04b8e946075d4582093e84f54dc1a004b227794d.tar.xz linux-dev-04b8e946075d4582093e84f54dc1a004b227794d.zip | |
mm/util.c: improve kvfree() kerneldoc
Scooped from an email from Matthew.
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/util.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/util.c b/mm/util.c index d2890a407332..9e3ebd2ef65f 100644 --- a/mm/util.c +++ b/mm/util.c @@ -435,11 +435,14 @@ void *kvmalloc_node(size_t size, gfp_t flags, int node) EXPORT_SYMBOL(kvmalloc_node); /** - * kvfree - free memory allocated with kvmalloc - * @addr: pointer returned by kvmalloc + * kvfree() - Free memory. + * @addr: Pointer to allocated memory. * - * If the memory is allocated from vmalloc area it is freed with vfree(). - * Otherwise kfree() is used. + * kvfree frees memory allocated by any of vmalloc(), kmalloc() or kvmalloc(). + * It is slightly more efficient to use kfree() or vfree() if you are certain + * that you know which one to use. + * + * Context: Any context except NMI. */ void kvfree(const void *addr) { |