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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2010-03-23 13:35:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-24 16:31:21 -0700
commit926f2ae04f183098cf9a30521776fb2759c8afeb (patch)
tree2d8583f77478557d508068ccb9bcc62cdc81920d /mm
parent12821f5fb942e795f8009ece14bde868893bd811 (diff)
downloadconfigs-926f2ae04f183098cf9a30521776fb2759c8afeb.tar.gz
tmpfs: cleanup mpol_parse_str()
mpol_parse_str() made lots 'err' variable related bug. Because it is ugly and reviewing unfriendly. This patch simplifies it. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Ravikiran Thirumalai <kiran@scalex86.org> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Mel Gorman <mel@csn.ul.ie> Acked-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/mempolicy.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index fb71790398f..6cdfa1df57f 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2195,8 +2195,8 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
char *rest = nodelist;
while (isdigit(*rest))
rest++;
- if (!*rest)
- err = 0;
+ if (*rest)
+ goto out;
}
break;
case MPOL_INTERLEAVE:
@@ -2205,7 +2205,6 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
*/
if (!nodelist)
nodes = node_states[N_HIGH_MEMORY];
- err = 0;
break;
case MPOL_LOCAL:
/*
@@ -2214,7 +2213,6 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
if (nodelist)
goto out;
mode = MPOL_PREFERRED;
- err = 0;
break;
case MPOL_DEFAULT:
/*
@@ -2229,7 +2227,6 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
*/
if (!nodelist)
goto out;
- err = 0;
}
mode_flags = 0;
@@ -2243,13 +2240,14 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
else if (!strcmp(flags, "relative"))
mode_flags |= MPOL_F_RELATIVE_NODES;
else
- err = 1;
+ goto out;
}
new = mpol_new(mode, mode_flags, &nodes);
if (IS_ERR(new))
- err = 1;
- else {
+ goto out;
+
+ {
int ret;
NODEMASK_SCRATCH(scratch);
if (scratch) {
@@ -2260,13 +2258,15 @@ int mpol_parse_str(char *str, struct mempolicy **mpol, int no_context)
ret = -ENOMEM;
NODEMASK_SCRATCH_FREE(scratch);
if (ret) {
- err = 1;
mpol_put(new);
- } else if (no_context) {
- /* save for contextualization */
- new->w.user_nodemask = nodes;
+ goto out;
}
}
+ err = 0;
+ if (no_context) {
+ /* save for contextualization */
+ new->w.user_nodemask = nodes;
+ }
out:
/* Restore string for error message */