Groups > linux.kernel > #1571969

[PATCH] ubifs: fix data node size for truncating uncompressed nodes

From	Richard Weinberger <richard@nod.at>
Newsgroups	linux.kernel
Subject	[PATCH] ubifs: fix data node size for truncating uncompressed nodes
Date	2017-02-01 21:50 +0100
Message-ID	<t6a0O-2qd-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View raw

From: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

Currently, the function truncate_data_node only updates the
destination data node size if compression is used. For
uncompressed nodes, the old length is incorrectly retained.

This patch makes sure that the length is correctly set when
compression is disabled.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 fs/ubifs/journal.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index 294519b98874..f3b620cbdda4 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -1298,7 +1298,9 @@ static int truncate_data_node(const struct ubifs_info *c, const struct inode *in
 			goto out;
 	}
 
-	if (compr_type != UBIFS_COMPR_NONE) {
+	if (compr_type == UBIFS_COMPR_NONE) {
+		out_len = *new_len;
+	} else {
 		err = ubifs_decompress(c, &dn->data, dlen, buf, &out_len, compr_type);
 		if (err)
 			goto out;
-- 
2.10.2

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH] ubifs: fix data node size for truncating uncompressed nodes Richard Weinberger <richard@nod.at> - 2017-02-01 21:50 +0100

csiph-web