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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH] ubifs: Fix reading holes in files
Date: Thu,  4 Feb 2016 12:21:44 +0100	[thread overview]
Message-ID: <1454584904-23740-1-git-send-email-s.hauer@pengutronix.de> (raw)

When a whole block of 4KiB in an ubifs file is zero then the block is
not stored in the filesystem. read_block() returns -ENOENT in this case,
so this return value must be treated as success.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 fs/ubifs/ubifs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ubifs/ubifs.c b/fs/ubifs/ubifs.c
index a9189f7..1f31f6f 100644
--- a/fs/ubifs/ubifs.c
+++ b/fs/ubifs/ubifs.c
@@ -377,7 +377,7 @@ static int ubifs_get_block(struct ubifs_file *uf, unsigned int pos)
 
 	if (block != uf->block) {
 		ret = read_block(uf->inode, uf->buf, block, uf->dn);
-		if (ret)
+		if (ret && ret != -ENOENT)
 			return ret;
 		uf->block = block;
 	}
-- 
2.7.0.rc3


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                 reply	other threads:[~2016-02-04 11:22 UTC|newest]

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