From: Lukas Czerner <lczerner@redhat.com>
To: Theodore Ts'o <tytso@mit.edu>
Cc: Ext4 Developers List <linux-ext4@vger.kernel.org>,
darrick.wong@oracle.com
Subject: Re: [PATCH 8/9] e2scrub_all: refactor device probe loop
Date: Fri, 22 Mar 2019 10:38:11 +0100 [thread overview]
Message-ID: <20190322093811.rw2z2nsyntckfpvq@work> (raw)
In-Reply-To: <20190321220819.GL9434@mit.edu>
On Thu, Mar 21, 2019 at 06:08:19PM -0400, Theodore Ts'o wrote:
> On Thu, Mar 21, 2019 at 06:04:40PM -0400, Theodore Ts'o wrote:
> > OK, I've reworked the function to read:
> >
> > ls_scan_targets() {
> > lsblk -o NAME,MOUNTPOINT,FSTYPE -P -n -p \
> > $(lvs -o lv_path --noheadings -S "lv_active=active,lv_role=public,lv_role!=snapshot,vg_free>${snap_size_mb}") | \
> > grep FSTYPE=\"ext\[234\]\" | while read vars ; do
> > eval "${vars}"
> >
> > if [ "${scrub_all}" -eq 1 ] || [ -n "${MOUNTPOINT}" ]; then
> > echo ${MOUNTPOINT:-${NAME}}
> > fi
> > done | sort | uniq
> > }
> >
> > I think that's the final answer....
>
> And I just saw your e-mail about dropping the sort and uniq calls.
> OK, I'll take care of that too.
>
> - Ted
Great, I like it and it runs very fast on my system.
cold cache
real 0m0.268s
user 0m0.011s
sys 0m0.036s
second run
real 0m0.053s
user 0m0.013s
sys 0m0.031s
Thanks for working on this.
-Lukas
next prev parent reply other threads:[~2019-03-22 9:38 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-21 2:02 [PATCH 1/9] e2scrub: check to make sure lvm2 is installed Theodore Ts'o
2019-03-21 2:02 ` [PATCH 2/9] debian: drop lvm2 from the recommends line Theodore Ts'o
2019-03-21 3:57 ` Darrick J. Wong
2019-03-21 2:02 ` [PATCH 3/9] Fix "make install-strip" Theodore Ts'o
2019-03-21 2:02 ` [PATCH 4/9] e2scrub: fix up "make install-strip" support Theodore Ts'o
2019-03-21 2:02 ` [PATCH 5/9] e2fscrub: add the -n option which shows what commands e2scrub would execute Theodore Ts'o
2019-03-21 3:59 ` Darrick J. Wong
2019-03-21 10:57 ` Lukas Czerner
2019-03-21 14:32 ` Theodore Ts'o
2019-03-21 2:02 ` [PATCH 6/9] e2scrub_all: add the -n option which shows what e2scrub_all would do Theodore Ts'o
2019-03-21 4:01 ` Darrick J. Wong
2019-03-21 2:02 ` [PATCH 7/9] e2scrub_all: make sure there's enough free space for a snapshot Theodore Ts'o
2019-03-21 4:02 ` Darrick J. Wong
2019-03-21 11:18 ` Lukas Czerner
2019-03-21 14:26 ` Theodore Ts'o
2019-03-21 2:02 ` [PATCH 8/9] e2scrub_all: refactor device probe loop Theodore Ts'o
2019-03-21 4:05 ` Darrick J. Wong
2019-03-21 10:27 ` Lukas Czerner
2019-03-21 14:31 ` Theodore Ts'o
2019-03-21 15:57 ` Lukas Czerner
2019-03-21 18:24 ` Theodore Ts'o
2019-03-21 20:17 ` Lukas Czerner
2019-03-21 20:48 ` Theodore Ts'o
2019-03-21 21:14 ` Lukas Czerner
2019-03-21 22:04 ` Theodore Ts'o
2019-03-21 22:08 ` Theodore Ts'o
2019-03-22 9:38 ` Lukas Czerner [this message]
2019-03-21 20:09 ` Andreas Dilger
2019-03-21 17:48 ` Theodore Ts'o
2019-03-21 19:49 ` Lukas Czerner
2019-03-21 20:23 ` Theodore Ts'o
2019-03-21 16:10 ` Lukas Czerner
2019-03-21 2:02 ` [PATCH 9/9] e2scrub,e2scrub_all: print a (more understandable) error if not run as root Theodore Ts'o
2019-03-21 4:04 ` Darrick J. Wong
2019-03-21 11:36 ` Lukas Czerner
2019-03-21 14:40 ` Theodore Ts'o
2019-03-21 3:55 ` [PATCH 1/9] e2scrub: check to make sure lvm2 is installed Darrick J. Wong
-- strict thread matches above, loose matches on Subject: below --
2019-03-21 20:25 [PATCH -v2 0/9] e2fsprogs: e2scrub cleanups Theodore Ts'o
2019-03-21 20:25 ` [PATCH 8/9] e2scrub_all: refactor device probe loop Theodore Ts'o
2019-03-21 20:55 ` Lukas Czerner
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