[PATCH 02/10] quota: Pass sb to vfs_load_quota_inode()

[Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>]

As a preparation to support filesystems that do not store quota files in
an inode pass the superblock to vfs_load_quota_inode(). With this we no
longer have to get the superblock from the inode and thus the inode
could be NULL.

Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
 fs/quota/dquot.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 59f31735fe79..bbe3be21ff43 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -2303,11 +2303,11 @@ EXPORT_SYMBOL(dquot_quota_off);
  * Helper function to turn quotas on when we already have the inode of
  * quota file and no quota information is loaded.
  */
-static int vfs_load_quota_inode(struct inode *inode, int type, int format_id,
+static int vfs_load_quota_inode(struct super_block *sb, struct inode *inode,
+				int type, int format_id,
 	unsigned int flags)
 {
 	struct quota_format_type *fmt = find_quota_format(format_id);
-	struct super_block *sb = inode->i_sb;
 	struct quota_info *dqopt = sb_dqopt(sb);
 	int error;
 
@@ -2443,7 +2443,7 @@ int dquot_resume(struct super_block *sb, int type)
 		spin_unlock(&dq_state_lock);
 
 		flags = dquot_generic_flag(flags, cnt);
-		ret = vfs_load_quota_inode(inode, cnt,
+		ret = vfs_load_quota_inode(sb, inode, cnt,
 				dqopt->info[cnt].dqi_fmt_id, flags);
 		iput(inode);
 	}
@@ -2462,7 +2462,7 @@ int dquot_quota_on(struct super_block *sb, int type, int format_id,
 	if (path->dentry->d_sb != sb)
 		error = -EXDEV;
 	else
-		error = vfs_load_quota_inode(d_inode(path->dentry), type,
+		error = vfs_load_quota_inode(sb, d_inode(path->dentry), type,
 					     format_id, DQUOT_USAGE_ENABLED |
 					     DQUOT_LIMITS_ENABLED);
 	return error;
@@ -2500,7 +2500,7 @@ int dquot_enable(struct inode *inode, int type, int format_id,
 		return 0;
 	}
 
-	return vfs_load_quota_inode(inode, type, format_id, flags);
+	return vfs_load_quota_inode(sb, inode, type, format_id, flags);
 }
 EXPORT_SYMBOL(dquot_enable);
 
@@ -2525,7 +2525,7 @@ int dquot_quota_on_mount(struct super_block *sb, char *qf_name,
 
 	error = security_quota_on(dentry);
 	if (!error)
-		error = vfs_load_quota_inode(d_inode(dentry), type, format_id,
+		error = vfs_load_quota_inode(sb, d_inode(dentry), type, format_id,
 				DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);
 
 out:
-- 
2.24.0.rc1