quota: Push dqio_sem down to ->write_file_info()

[sfrench/cifs-2.6.git] / fs / quota / quota_v1.c

diff --git a/fs/quota/quota_v1.c b/fs/quota/quota_v1.c
index 12d69cda57cca9f25a998e88b9be38e534aa0e11..fe68bf544b29881530dc1f953c242a50487f5b28 100644 (file)
--- a/fs/quota/quota_v1.c
+++ b/fs/quota/quota_v1.c
@@ -186,6 +186,7 @@ static int v1_write_file_info(struct super_block *sb, int type)
        struct v1_disk_dqblk dqblk;
        int ret;
 
+       down_write(&dqopt->dqio_sem);
        dqopt->info[type].dqi_flags &= ~DQF_INFO_DIRTY;
        ret = sb->s_op->quota_read(sb, type, (char *)&dqblk,
                                sizeof(struct v1_disk_dqblk), v1_dqoff(0));
@@ -203,6 +204,7 @@ static int v1_write_file_info(struct super_block *sb, int type)
        else if (ret > 0)
                ret = -EIO;
 out:
+       up_write(&dqopt->dqio_sem);
        return ret;
 }