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| author | Lee Schermerhorn <lee.schermerhorn@hp.com> | 2010-05-24 14:32:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 08:06:57 -0700 |
| commit | e17f74af351cce9a1bade7b33af179497fdf95cf (patch) | |
| tree | 99cce009bf299465a3b20594305ee209c8d85c3d /mm/mempolicy.c | |
| parent | 1980050250fa052b1c24a19f9b3d82fae14d77f8 (diff) | |
| download | lwn-e17f74af351cce9a1bade7b33af179497fdf95cf.tar.gz lwn-e17f74af351cce9a1bade7b33af179497fdf95cf.zip | |
mempolicy: don't call mpol_set_nodemask() when no_context
No need to call mpol_set_nodemask() when we have no context for the
mempolicy. This can occur when we're parsing a tmpfs 'mpol' mount option.
Just save the raw nodemask in the mempolicy's w.user_nodemask member for
use when a tmpfs/shmem file is created. mpol_shared_policy_init() will
"contextualize" the policy for the new file based on the creating task's
context.
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 | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index ac5aeafaec9a..0e1b293e4054 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2239,7 +2239,10 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context) if (IS_ERR(new)) goto out; - { + if (no_context) { + /* save for contextualization */ + new->w.user_nodemask = nodes; + } else { int ret; NODEMASK_SCRATCH(scratch); if (scratch) { @@ -2255,10 +2258,6 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context) } } err = 0; - if (no_context) { - /* save for contextualization */ - new->w.user_nodemask = nodes; - } out: /* Restore string for error message */ |