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>
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1 changed files with 3 additions and 2 deletions
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@ -2859,10 +2859,11 @@ void ubifs_tnc_close(struct ubifs_info *c)
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{
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tnc_destroy_cnext(c);
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if (c->zroot.znode) {
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long n;
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long n, freed;
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ubifs_destroy_tnc_subtree(c->zroot.znode);
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n = atomic_long_read(&c->clean_zn_cnt);
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freed = ubifs_destroy_tnc_subtree(c->zroot.znode);
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ubifs_assert(freed == n);
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atomic_long_sub(n, &ubifs_clean_zn_cnt);
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}
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kfree(c->gap_lebs);
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