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authorhujianyang <hujianyang@huawei.com>2014-06-03 14:49:11 +0800
committerArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2014-06-03 11:16:51 +0300
commit380347e9ca76828ee9bac63cfc338ca99cdee4f3 (patch)
tree8e9a89a8e393338524ec0ddf2e856b437b91c17e
parent90bea5a3f0bf680b87b90516f3c231997f4b8f3b (diff)
downloadop-kernel-dev-380347e9ca76828ee9bac63cfc338ca99cdee4f3.zip
op-kernel-dev-380347e9ca76828ee9bac63cfc338ca99cdee4f3.tar.gz
UBIFS: Add an assertion for clean_zn_cnt
This patch adds a new ubifs_assert() in ubifs_tnc_close() to check if there are any leaks of per-filesystem @clean_zn_cnt. This new assert inspects whether the return value of ubifs_destroy_tnc_subtree() is equal to @clean_zn_cnt or not while umount. Artem: a minor amendment Signed-off-by: hujianyang <hujianyang@huawei.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
-rw-r--r--fs/ubifs/tnc.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 9083bc7..8a40cf9 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -2859,10 +2859,11 @@ void ubifs_tnc_close(struct ubifs_info *c)
{
tnc_destroy_cnext(c);
if (c->zroot.znode) {
- long n;
+ long n, freed;
- ubifs_destroy_tnc_subtree(c->zroot.znode);
n = atomic_long_read(&c->clean_zn_cnt);
+ freed = ubifs_destroy_tnc_subtree(c->zroot.znode);
+ ubifs_assert(freed == n);
atomic_long_sub(n, &ubifs_clean_zn_cnt);
}
kfree(c->gap_lebs);
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