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path: root/fs/quota/quota_v1.c
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Diffstat (limited to 'fs/quota/quota_v1.c')
-rw-r--r--fs/quota/quota_v1.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/quota/quota_v1.c b/fs/quota/quota_v1.c
index 12d69cda57cc..fe68bf544b29 100644
--- 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;
}