From: Jan Kara <jack@suse.cz>
Date: Sat, 16 Apr 2005 22:25:46 +0000 (-0700)
Subject: [PATCH] quota: fix possible oops on quotaoff
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=31e7ad6ac919761f0486f7781b02ff3ab54b6ef1;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PATCH] quota: fix possible oops on quotaoff

Remove dquot structures from quota file on quotaon - quota code does not
expect them to be there.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/fs/dquot.c b/fs/dquot.c
index 11048e0b32c9..3995ce7907cc 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -1443,6 +1443,7 @@ static int vfs_quota_on_inode(struct inode *inode, int type, int format_id)
 	oldflags = inode->i_flags & (S_NOATIME | S_IMMUTABLE | S_NOQUOTA);
 	inode->i_flags |= S_NOQUOTA | S_NOATIME | S_IMMUTABLE;
 	up_write(&dqopt->dqptr_sem);
+	sb->dq_op->drop(inode);
 
 	error = -EIO;
 	dqopt->files[type] = igrab(inode);