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| author | Lee Schermerhorn <lee.schermerhorn@hp.com> | 2010-05-24 14:32:04 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 08:06:57 -0700 |
| commit | 15d77835ac48dbc2d4884376ea6a08b65b1c40ba (patch) | |
| tree | 4bb094f030cedf8376a70a65f9271b571ba37562 /mm/mempolicy.c | |
| parent | 345ace9c797030e77da8ff211b9502370b9d81ab (diff) | |
| download | lwn-15d77835ac48dbc2d4884376ea6a08b65b1c40ba.tar.gz lwn-15d77835ac48dbc2d4884376ea6a08b65b1c40ba.zip | |
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.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index ade57322fa2a..0c73c8b814cd 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); } |