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authorLee Schermerhorn <lee.schermerhorn@hp.com>2010-05-24 14:32:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-25 08:06:57 -0700
commit15d77835ac48dbc2d4884376ea6a08b65b1c40ba (patch)
tree4bb094f030cedf8376a70a65f9271b571ba37562 /mm/mempolicy.c
parent345ace9c797030e77da8ff211b9502370b9d81ab (diff)
downloadvexpress-lsk-15d77835ac48dbc2d4884376ea6a08b65b1c40ba.tar.gz
mempolicy: factor mpol_shared_policy_init() return paths
Factor out duplicate put/frees in mpol_shared_policy_init() to a common return path. Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: Ravikiran Thirumalai <kiran@scalex86.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/mempolicy.c')
-rw-r--r--mm/mempolicy.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index ade57322fa2..0c73c8b814c 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1995,26 +1995,22 @@ void mpol_shared_policy_init(struct shared_policy *sp, struct mempolicy *mpol)
return;
/* contextualize the tmpfs mount point mempolicy */
new = mpol_new(mpol->mode, mpol->flags, &mpol->w.user_nodemask);
- if (IS_ERR(new)) {
- mpol_put(mpol); /* drop our ref on sb mpol */
- NODEMASK_SCRATCH_FREE(scratch);
- return; /* no valid nodemask intersection */
- }
+ if (IS_ERR(new))
+ goto put_free; /* no valid nodemask intersection */
task_lock(current);
ret = mpol_set_nodemask(new, &mpol->w.user_nodemask, scratch);
task_unlock(current);
mpol_put(mpol); /* drop our ref on sb mpol */
- if (ret) {
- NODEMASK_SCRATCH_FREE(scratch);
- mpol_put(new);
- return;
- }
+ if (ret)
+ goto put_free;
/* Create pseudo-vma that contains just the policy */
memset(&pvma, 0, sizeof(struct vm_area_struct));
pvma.vm_end = TASK_SIZE; /* policy covers entire file */
mpol_set_shared_policy(sp, &pvma, new); /* adds ref */
+
+put_free:
mpol_put(new); /* drop initial ref */
NODEMASK_SCRATCH_FREE(scratch);
}