linux-ext4 - [PATCH] mke2fs: use ext2fs_open_file() in check

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Message-ID: <537CE3E1.10406@redhat.com>
Date:	Wed, 21 May 2014 12:35:29 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	ext4 development <linux-ext4@...r.kernel.org>
Subject: [PATCH] mke2fs: use ext2fs_open_file() in check_plausibility()

The commit:

802146c mke2fs: create a regular file if necessary

caused a regression on 32-bit machines; the open() fails if
the file size is > 4G.

Using ext2fs_open_file() fixes it.

Resolves: Red Hat Bugzilla #1099892

Signed-off-by: Eric Sandeen <sandeen@...hat.com>
---

TBH I don't know if this should be using ext2fs_open_file(),
or some other magic like O_LARGEFILE, but this works for me,
and we use the stat/fstat wrapper here too, so ...

diff --git a/misc/util.c b/misc/util.c
index f85942e..d638625 100644
--- a/misc/util.c
+++ b/misc/util.c
@@ -94,7 +94,7 @@ int check_plausibility(const char *device, int flags, int *ret_is_dev)
 	if (flags & CREATE_FILE)
 		fl |= O_CREAT;
 
-	fd = open(device, fl, 0666);
+	fd = ext2fs_open_file(device, fl, 0666);
 	if (fd < 0) {
 		fprintf(stderr, _("Could not open %s: %s\n"),
 			device, error_message(errno));


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