public inbox for lvm2-cvs@sourceware.org help / color / mirror / Atom feed
From: zkabelac@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2 ./WHATS_NEW lib/device/dev-io.c Date: Wed, 21 Dec 2011 13:24:00 -0000 [thread overview] Message-ID: <20111221132425.11606.qmail@sourceware.org> (raw) CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: zkabelac@sourceware.org 2011-12-21 13:24:25 Modified files: . : WHATS_NEW lib/device : dev-io.c Log message: Drop extra stat before open of device Since the !(dev->flags & DEV_REGULAR) code path just called dev_name_confirmed() which has just called 'stat()' inside, remove duplicate second stat() call here. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.2212&r2=1.2213 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/device/dev-io.c.diff?cvsroot=lvm2&r1=1.78&r2=1.79 --- LVM2/WHATS_NEW 2011/12/21 13:21:09 1.2212 +++ LVM2/WHATS_NEW 2011/12/21 13:24:24 1.2213 @@ -1,5 +1,6 @@ Version 2.02.89 - ================================== + Drop extra stat call before opening device. Reduce number of lstat calls when selecting device alias. Add function to inialize common structure device members. Always zalloc device structure during initialization. --- LVM2/lib/device/dev-io.c 2011/05/28 09:48:14 1.78 +++ LVM2/lib/device/dev-io.c 2011/12/21 13:24:25 1.79 @@ -449,17 +449,6 @@ else if (!(name = dev_name_confirmed(dev, quiet))) return_0; - if (!(dev->flags & DEV_REGULAR)) { - if (stat(name, &buf) < 0) { - log_sys_error("%s: stat failed", name); - return 0; - } - if (buf.st_rdev != dev->dev) { - log_error("%s: device changed", name); - return 0; - } - } - #ifdef O_DIRECT_SUPPORT if (direct) { if (!(dev->flags & DEV_O_DIRECT_TESTED))
next reply other threads:[~2011-12-21 13:24 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-12-21 13:24 zkabelac [this message] -- strict thread matches above, loose matches on Subject: below -- 2010-09-22 22:31 agk 2007-09-07 11:24 meyering 2005-11-23 16:07 agk 2004-12-21 20:23 agk 2004-12-09 16:56 agk 2004-09-14 22:23 agk
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20111221132425.11606.qmail@sourceware.org \ --to=zkabelac@sourceware.org \ --cc=lvm-devel@redhat.com \ --cc=lvm2-cvs@sourceware.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).