AcoSail/kernel_optimize_test
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fs/ceph: Move a dereference below a NULL test

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If the NULL test is necessary, then the dereference should be moved below
the NULL test.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/).

// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@

- T i = E->fld;
+ T i;
  ... when != E
      when != i
  if (E == NULL) S
+ i = E->fld;
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Julia Lawall 2009-11-21 16:53:16 +01:00 committed by Sage Weil
parent 60d877334f
commit 32c895e776
1 changed files with 2 additions and 1 deletions
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3
fs/ceph/osd_client.c
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@ -1249,11 +1249,12 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
static void dispatch(struct ceph_connection *con, struct ceph_msg *msg)
{
struct ceph_osd *osd = con->private;
struct ceph_osd_client *osdc = osd->o_osdc;
struct ceph_osd_client *osdc;
int type = le16_to_cpu(msg->hdr.type);
if (!osd)
return;
osdc = osd->o_osdc;
switch (type) {
case CEPH_MSG_OSD_MAP: