From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: Pavel Reichl <preichl@redhat.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 2/2] mkfs: Show progress during block discard
Date: Thu, 21 Nov 2019 13:59:17 -0800 [thread overview]
Message-ID: <20191121215917.GA6219@magnolia> (raw)
In-Reply-To: <20191121214445.282160-3-preichl@redhat.com>
On Thu, Nov 21, 2019 at 10:44:45PM +0100, Pavel Reichl wrote:
> Signed-off-by: Pavel Reichl <preichl@redhat.com>
> ---
> mkfs/xfs_mkfs.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
> index a02d6f66..07b8bd78 100644
> --- a/mkfs/xfs_mkfs.c
> +++ b/mkfs/xfs_mkfs.c
> @@ -1248,6 +1248,7 @@ discard_blocks(dev_t dev, uint64_t nsectors)
> const uint64_t step = (uint64_t)2<<30;
> /* Sector size is 512 bytes */
> const uint64_t count = nsectors << 9;
> + uint64_t prev_done = (uint64_t) ~0;
>
> fd = libxfs_device_to_fd(dev);
> if (fd <= 0)
> @@ -1255,6 +1256,7 @@ discard_blocks(dev_t dev, uint64_t nsectors)
>
> while (offset < count) {
> uint64_t tmp_step = step;
> + uint64_t done = offset * 100 / count;
>
> if ((offset + step) > count)
> tmp_step = count - offset;
> @@ -1268,7 +1270,13 @@ discard_blocks(dev_t dev, uint64_t nsectors)
> return;
>
> offset += tmp_step;
> +
> + if (prev_done != done) {
Hmm... so this prints the status message every increase percentage
point, right?
> + prev_done = done;
> + fprintf(stderr, _("Discarding: %2lu%% done\n"), done);
This isn't an error, so why output to stderr?
FWIW if it's a tty you might consider ending that string with \r so the
status messages don't scroll off the screen. Or possibly only reporting
status if stdout is a tty?
--D
> + }
> }
> + fprintf(stderr, _("Discarding is done.\n"));
> }
>
> static __attribute__((noreturn)) void
> --
> 2.23.0
>
next prev parent reply other threads:[~2019-11-21 21:59 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-21 21:44 [PATCH 0/2] mkfs: inform during block discarding Pavel Reichl
2019-11-21 21:44 ` [PATCH 1/2] mkfs: Break block discard into chunks of 2 GB Pavel Reichl
2019-11-21 21:55 ` Darrick J. Wong
2019-11-22 14:46 ` Pavel Reichl
2019-11-22 21:07 ` Eric Sandeen
2019-11-21 23:18 ` Dave Chinner
2019-11-22 15:38 ` Darrick J. Wong
2019-11-22 15:59 ` Pavel Reichl
2019-11-22 21:00 ` Dave Chinner
2019-11-22 16:09 ` Pavel Reichl
2019-11-22 21:10 ` Eric Sandeen
2019-11-22 21:30 ` Eric Sandeen
2019-11-26 19:40 ` Eric Sandeen
2019-11-26 20:53 ` Eric Sandeen
2019-11-21 21:44 ` [PATCH 2/2] mkfs: Show progress during block discard Pavel Reichl
2019-11-21 21:59 ` Darrick J. Wong [this message]
2019-11-22 16:27 ` Pavel Reichl
2019-11-22 16:31 ` Darrick J. Wong
2019-11-21 23:41 ` Dave Chinner
2019-11-22 16:43 ` Pavel Reichl
2019-11-22 21:11 ` Dave Chinner
2019-11-22 21:19 ` Eric Sandeen
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