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| author | Jan Kara <jack@suse.cz> | 2016-02-04 16:50:26 +0300 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2016-02-09 15:05:23 +0300 |
| commit | 5a9530e498ed25173d426cd93e31a04468d0dc24 (patch) | |
| tree | 3bd36852663e0e95345b26f556fea1c1ace1dd37 | |
| parent | 0066373d9f9320f69f24b080ee00d10f14397355 (diff) | |
| download | linux-5a9530e498ed25173d426cd93e31a04468d0dc24.tar.xz | |
ocfs2: Implement get_next_id()
Implement get_next_id() callback to enable use of Q_GETNEXTQUOTA
quotactl for OCFS2.
Signed-off-by: Jan Kara <jack@suse.cz>
| -rw-r--r-- | fs/ocfs2/ocfs2_trace.h | 2 | ||||
| -rw-r--r-- | fs/ocfs2/quota_global.c | 25 |
2 files changed, 27 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h index 6cb019b7c6a8..a52a2dbc064e 100644 --- a/fs/ocfs2/ocfs2_trace.h +++ b/fs/ocfs2/ocfs2_trace.h @@ -2035,6 +2035,8 @@ DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_release_dquot); DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_acquire_dquot); +DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_get_next_id); + DEFINE_OCFS2_UINT_INT_EVENT(ocfs2_mark_dquot_dirty); /* End of trace events for fs/ocfs2/quota_global.c. */ diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index 9c9dd30bc945..91bc674203ed 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -860,6 +860,30 @@ out: return status; } +static int ocfs2_get_next_id(struct super_block *sb, struct kqid *qid) +{ + int type = qid->type; + struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv; + int status = 0; + + trace_ocfs2_get_next_id(from_kqid(&init_user_ns, *qid), type); + status = ocfs2_lock_global_qf(info, 0); + if (status < 0) + goto out; + status = ocfs2_qinfo_lock(info, 0); + if (status < 0) + goto out_global; + status = qtree_get_next_id(&info->dqi_gi, qid); + ocfs2_qinfo_unlock(info, 0); +out_global: + ocfs2_unlock_global_qf(info, 0); +out: + /* Avoid logging ENOENT since it just means there isn't next ID */ + if (status && status != -ENOENT) + mlog_errno(status); + return status; +} + static int ocfs2_mark_dquot_dirty(struct dquot *dquot) { unsigned long mask = (1 << (DQ_LASTSET_B + QIF_ILIMITS_B)) | @@ -968,4 +992,5 @@ const struct dquot_operations ocfs2_quota_operations = { .write_info = ocfs2_write_info, .alloc_dquot = ocfs2_alloc_dquot, .destroy_dquot = ocfs2_destroy_dquot, + .get_next_id = ocfs2_get_next_id, }; |