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authorMatthew Wilcox <willy@infradead.org>2018-07-11 14:02:23 -0700
committerDominique Martinet <dominique.martinet@cea.fr>2018-08-13 09:21:44 +0900
commit2557d0c57c0c11af915d0d4d97402527958c0c01 (patch)
tree6f396b3331646b3f552e37a47be0bda0ecb1684f /include/net/9p/client.h
parentf28cdf0430fc92acaa718e15598bdad6cb236a4d (diff)
downloadlinux-2557d0c57c0c11af915d0d4d97402527958c0c01.tar.bz2
9p: Embed wait_queue_head into p9_req_t
On a 64-bit system, the wait_queue_head_t is 24 bytes while the pointer to it is 8 bytes. Growing the p9_req_t by 16 bytes is better than performing a 24-byte memory allocation. Link: http://lkml.kernel.org/r/20180711210225.19730-5-willy@infradead.org Signed-off-by: Matthew Wilcox <willy@infradead.org> Reviewed-by: Greg Kurz <groug@kaod.org> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Ron Minnich <rminnich@sandia.gov> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Diffstat (limited to 'include/net/9p/client.h')
-rw-r--r--include/net/9p/client.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index e405729cd1c7..0fa0fbab33b0 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -113,7 +113,7 @@ enum p9_req_status_t {
struct p9_req_t {
int status;
int t_err;
- wait_queue_head_t *wq;
+ wait_queue_head_t wq;
struct p9_fcall *tc;
struct p9_fcall *rc;
void *aux;