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From: Cyril Hrubis <chrubis@suse.cz>
To: ltp@lists.linux.it
Subject: [LTP] [RFC] [PATCH 01/15] lib/tst_mkfs: Clear first 512k of the device
Date: Thu, 7 Sep 2017 10:34:28 +0200	[thread overview]
Message-ID: <20170907083428.GA32577@rei.lan> (raw)
In-Reply-To: <1786606525.10020364.1504770171451.JavaMail.zimbra@redhat.com>

Hi!
> > If we cal tst_mkfs() from a test more than once we end up with the very
> > same bug we already fixed by clearing the device in
> > tst_acquire_device(), i.e. some mkfs programs will not format it when
> > there is a valid FS signature there.
> > 
> > So this commit moves the code to clear up the first 512k of the device
> > from tst_acquire_device() to the tst_mkfs() where it rightfully belongs.
> 
> Didn't we move the clearing to tst_acquire_device() because of shell library
> some time ago? tst_mkfs() from tst_test.sh is not using tst_mkfs_().

Right, the shell mkfs test would fail in a case that we have a device
passed via LTP_DEV because the start of the device wouldn't be cleaned
at all.

I guess that the easiest solution would be leaving the code to clear the
start of the device in the acquire_device() as well. We would end up
clearing it twice in some situations though.

-- 
Cyril Hrubis
chrubis@suse.cz

      reply	other threads:[~2017-09-07  8:34 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-05 16:09 [LTP] [RFC] [PATCH 01/15] lib/tst_mkfs: Clear first 512k of the device Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 02/15] lib: Add interface to list supported filesystems Cyril Hrubis
2017-09-07  7:48   ` Jan Stancek
2017-09-07  8:25   ` Jan Stancek
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 03/15] SAFE_MOUNT: Handle FUSE mounts as well Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 04/15] lib/tst_test: Add .all_filesystems flag Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 05/15] lib/tst_fs: Add tst_fill_fs() Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 06/15] syscalls/fallocate05: New test Cyril Hrubis
2017-09-07  8:51   ` Jan Stancek
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 07/15] syscalls/msync04: Run test for all filesystems Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 08/15] syscalls/fallocate04: Convert to the new library Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 09/15] syscalls/fallocate04: Run test for all filesystems Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 10/15] syscalls/setxattr01: Convert to the new library Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 11/15] syscalls/setxattr01: Run test for all filesystems Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 12/15] syscallse/setxattr02: Convert to the new library Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 13/15] syscalls/fsync01: " Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 14/15] syscalls/fsync01: Run test for all filesystems Cyril Hrubis
2017-09-05 16:09 ` [LTP] [RFC] [PATCH 15/15] fs/fs_fill: Add a test to fill a FS in a few threads Cyril Hrubis
2017-09-07  9:13   ` Jan Stancek
2017-09-07  7:42 ` [LTP] [RFC] [PATCH 01/15] lib/tst_mkfs: Clear first 512k of the device Jan Stancek
2017-09-07  8:34   ` Cyril Hrubis [this message]

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