The patch titled
mm/backing-dev.c: fix percpu_counter_destroy call bug in bdi_init
has been added to the -mm tree. Its filename is
mm-backing-devc-fix-percpu_counter_destroy-call-bug-in-bdi_init.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: mm/backing-dev.c: fix percpu_counter_destroy call bug in bdi_init
From: Denis Cheng <crquan@xxxxxxxxx>
this call should use the array index j, not i:
--- mm/backing-dev.c.orig 2007-12-02 19:42:57.000000000 +0800
+++ mm/backing-dev.c 2007-12-02 19:43:14.000000000 +0800
@@ -22,7 +22,7 @@ int bdi_init(struct backing_dev_info *bd
if (err) {
err:
for (j = 0; j < i; j++)
- percpu_counter_destroy(&bdi->bdi_stat[i]);
+ percpu_counter_destroy(&bdi->bdi_stat[j]);
}
return err;
but with this approach, just one int i is enough, int j is not needed.
Signed-off-by: Denis Cheng <crquan@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/backing-dev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/backing-dev.c~mm-backing-devc-fix-percpu_counter_destroy-call-bug-in-bdi_init mm/backing-dev.c
--- a/mm/backing-dev.c~mm-backing-devc-fix-percpu_counter_destroy-call-bug-in-bdi_init
+++ a/mm/backing-dev.c
@@ -7,7 +7,7 @@
int bdi_init(struct backing_dev_info *bdi)
{
- int i, j;
+ int i;
int err;
for (i = 0; i < NR_BDI_STAT_ITEMS; i++) {
@@ -21,7 +21,7 @@ int bdi_init(struct backing_dev_info *bd
if (err) {
err:
- for (j = 0; j < i; j++)
+ while (i--)
percpu_counter_destroy(&bdi->bdi_stat[i]);
}
_
Patches currently in -mm which might be from crquan@xxxxxxxxx are
origin.patch
mm-backing-devc-fix-percpu_counter_destroy-call-bug-in-bdi_init.patch
git-cryptodev.patch
-
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