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authorTheodore Ts'o <tytso@mit.edu>2016-04-01 19:00:03 +0300
committerTheodore Ts'o <tytso@mit.edu>2016-04-01 19:00:03 +0300
commit8f0e8746b4d57303d84f7b161a201e94fe22638f (patch)
tree67526f43bcc7847531e7a8d2ff6fdd34c59543e4 /fs/ext4
parente84dfbe2bf170c626778079e5b94435b05b8d572 (diff)
downloadlinux-8f0e8746b4d57303d84f7b161a201e94fe22638f.tar.xz
ext4: avoid calling dquot_get_next_id() if quota is not enabled
This should be fixed in the quota layer so we can test with the quota mutex held, but for now, we need this to avoid tests from crashing the kernel aborting the regression test suite. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/super.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 7ebd9f040b16..51a131162c11 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1113,6 +1113,7 @@ static ssize_t ext4_quota_write(struct super_block *sb, int type,
static int ext4_quota_enable(struct super_block *sb, int type, int format_id,
unsigned int flags);
static int ext4_enable_quotas(struct super_block *sb);
+static int ext4_get_next_id(struct super_block *sb, struct kqid *qid);
static struct dquot **ext4_get_dquots(struct inode *inode)
{
@@ -1129,7 +1130,7 @@ static const struct dquot_operations ext4_quota_operations = {
.alloc_dquot = dquot_alloc,
.destroy_dquot = dquot_destroy,
.get_projid = ext4_get_projid,
- .get_next_id = dquot_get_next_id,
+ .get_next_id = ext4_get_next_id,
};
static const struct quotactl_ops ext4_qctl_operations = {
@@ -5274,6 +5275,17 @@ out:
return len;
}
+static int ext4_get_next_id(struct super_block *sb, struct kqid *qid)
+{
+ const struct quota_format_ops *ops;
+
+ if (!sb_has_quota_loaded(sb, qid->type))
+ return -ESRCH;
+ ops = sb_dqopt(sb)->ops[qid->type];
+ if (!ops || !ops->get_next_id)
+ return -ENOSYS;
+ return dquot_get_next_id(sb, qid);
+}
#endif
static struct dentry *ext4_mount(struct file_system_type *fs_type, int flags,