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| author | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 18:57:10 +0200 |
|---|---|---|
| committer | Wolfgang Wiedmeyer <wolfgit@wiedmeyer.de> | 2015-10-23 18:57:10 +0200 |
| commit | de04df3a2555ac04d19c3ad6528503d5bf4ab0e7 (patch) | |
| tree | fb3c0b36662106c463ad73b2ed5f1c48d325484a /fs/quota/dquot.c | |
| parent | 25fbe5ca4d0f37170451b682bd150a70f944aca0 (diff) | |
| download | kernel_samsung_smdk4412-de04df3a2555ac04d19c3ad6528503d5bf4ab0e7.zip kernel_samsung_smdk4412-de04df3a2555ac04d19c3ad6528503d5bf4ab0e7.tar.gz kernel_samsung_smdk4412-de04df3a2555ac04d19c3ad6528503d5bf4ab0e7.tar.bz2 | |
getting newer filesystem code working
Diffstat (limited to 'fs/quota/dquot.c')
| -rw-r--r-- | fs/quota/dquot.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 5b572c8..3d5d717 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -580,9 +580,17 @@ int dquot_scan_active(struct super_block *sb, dqstats_inc(DQST_LOOKUPS); dqput(old_dquot); old_dquot = dquot; - ret = fn(dquot, priv); - if (ret < 0) - goto out; + /* + * ->release_dquot() can be racing with us. Our reference + * protects us from new calls to it so just wait for any + * outstanding call and recheck the DQ_ACTIVE_B after that. + */ + wait_on_dquot(dquot); + if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) { + ret = fn(dquot, priv); + if (ret < 0) + goto out; + } spin_lock(&dq_list_lock); /* We are safe to continue now because our dquot could not * be moved out of the inuse list while we hold the reference */ |