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From: Richard Weinberger <richard@nod.at>
To: linux-mtd@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, Richard Weinberger <richard@nod.at>,
	stable@vger.kernel.org, Sascha Hauer <s.hauer@pengutronix.de>,
	Kristof Havasi <havasiefr@gmail.com>
Subject: [PATCH] ubifs: journal: Make sure to not dirty twice for auth nodes
Date: Mon, 28 Sep 2020 21:06:12 +0200	[thread overview]
Message-ID: <20200928190612.12074-1-richard@nod.at> (raw)

When removing the last reference of an inode the size of an auth node
is already part of write_len. So we must not call ubifs_add_auth_dirt().
Call it only when needed.

Cc: <stable@vger.kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Kristof Havasi <havasiefr@gmail.com>
Fixes: 6a98bc4614de ("ubifs: Add authentication nodes to journal")
Reported-by: Kristof Havasi <havasiefr@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 fs/ubifs/journal.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index cb1fa0c37322..091c2ad8f211 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -938,8 +938,6 @@ int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode)
 					  inode->i_ino);
 	release_head(c, BASEHD);
 
-	ubifs_add_auth_dirt(c, lnum);
-
 	if (last_reference) {
 		err = ubifs_tnc_remove_ino(c, inode->i_ino);
 		if (err)
@@ -949,6 +947,8 @@ int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode)
 	} else {
 		union ubifs_key key;
 
+		ubifs_add_auth_dirt(c, lnum);
+
 		ino_key_init(c, &key, inode->i_ino);
 		err = ubifs_tnc_add(c, &key, lnum, offs, ilen, hash);
 	}
-- 
2.26.2


             reply	other threads:[~2020-09-28 19:15 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-28 19:06 Richard Weinberger [this message]
2020-09-29  8:32 ` [PATCH] ubifs: journal: Make sure to not dirty twice for auth nodes Sascha Hauer
2020-09-29  8:44   ` Richard Weinberger

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