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UBIFS: Add an assertion for clean_zn_cnt

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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>
This commit is contained in:
hujianyang 2014-06-03 14:49:11 +08:00 committed by Artem Bityutskiy
parent 90bea5a3f0
commit 380347e9ca
1 changed files with 3 additions and 2 deletions
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5
fs/ubifs/tnc.c
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@ -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);