quota: Acquire dqio_sem for reading in vfs_load_quota_inode()

[sfrench/cifs-2.6.git] / fs / ocfs2 / quota_local.c

diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index 32c5a40c1257ecda129944a1abf4cdac83a2e8a1..1829f6a45d46a488edbb66d450328a48e504cc78 100644 (file)
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -520,7 +520,7 @@ static int ocfs2_recover_local_quota_file(struct inode *lqinode,
                                mlog_errno(status);
                                goto out_drop_lock;
                        }
-                       mutex_lock(&sb_dqopt(sb)->dqio_mutex);
+                       down_write(&sb_dqopt(sb)->dqio_sem);
                        spin_lock(&dq_data_lock);
                        /* Add usage from quota entry into quota changes
                         * of our node. Auxiliary variables are important
@@ -553,7 +553,7 @@ static int ocfs2_recover_local_quota_file(struct inode *lqinode,
                        unlock_buffer(qbh);
                        ocfs2_journal_dirty(handle, qbh);
 out_commit:
-                       mutex_unlock(&sb_dqopt(sb)->dqio_mutex);
+                       up_write(&sb_dqopt(sb)->dqio_sem);
                        ocfs2_commit_trans(OCFS2_SB(sb), handle);
 out_drop_lock:
                        ocfs2_unlock_global_qf(oinfo, 1);
@@ -693,7 +693,7 @@ static int ocfs2_local_read_info(struct super_block *sb, int type)
 
        /* We don't need the lock and we have to acquire quota file locks
         * which will later depend on this lock */
-       mutex_unlock(&sb_dqopt(sb)->dqio_mutex);
+       up_read(&sb_dqopt(sb)->dqio_sem);
        info->dqi_max_spc_limit = 0x7fffffffffffffffLL;
        info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
        oinfo = kmalloc(sizeof(struct ocfs2_mem_dqinfo), GFP_NOFS);
@@ -772,7 +772,7 @@ static int ocfs2_local_read_info(struct super_block *sb, int type)
                goto out_err;
        }
 
-       mutex_lock(&sb_dqopt(sb)->dqio_mutex);
+       down_read(&sb_dqopt(sb)->dqio_sem);
        return 0;
 out_err:
        if (oinfo) {
@@ -786,7 +786,7 @@ out_err:
                kfree(oinfo);
        }
        brelse(bh);
-       mutex_lock(&sb_dqopt(sb)->dqio_mutex);
+       down_read(&sb_dqopt(sb)->dqio_sem);
        return -1;
 }