mirror of
git://sourceware.org/git/lvm2.git
synced 2025-04-27 10:50:38 +03:00
1404e5ee61
lvm opens devices readonly to scan them, but needs to open then readwrite to update the metadata. Previously, the ro fd was closed before the rw fd was opened, leaving a small gap where the dev was not held open, and during which the dev could possibly change which storage it referred to. With the bcache_change_fd() interface, lvm opens a rw fd on a device to be written, tells bcache to change to the new rw fd, and closes the ro fd. . open dev ro . read dev with the ro fd (label_scan) . lock vg (ex for writing) . open dev rw . close ro fd . rescan dev to check if the metadata changed between the scan and the lock . if the metadata did change, reread in full . write the metadata
This tree contains the LVM2 and device-mapper tools and libraries. This is development branch, for stable 2.02 release see stable-2.02 branch. For more information about LVM2 read the changelog in the WHATS_NEW file. Installation instructions are in INSTALL. There is no warranty - see COPYING and COPYING.LIB. Tarballs are available from: ftp://sourceware.org/pub/lvm2/ https://github.com/lvmteam/lvm2/releases The source code is stored in git: https://sourceware.org/git/?p=lvm2.git git clone git://sourceware.org/git/lvm2.git mirrored to: https://github.com/lvmteam/lvm2 git clone https://github.com/lvmteam/lvm2.git git clone git@github.com:lvmteam/lvm2.git Mailing list for general discussion related to LVM2: linux-lvm@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm Mailing lists for LVM2 development, patches and commits: lvm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/lvm-devel lvm2-commits@lists.fedorahosted.org (Read-only archive of commits) Subscribe from https://fedorahosted.org/mailman/listinfo/lvm2-commits Mailing list for device-mapper development, including kernel patches and multipath-tools: dm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/dm-devel Website: https://sourceware.org/lvm2/ Report upstream bugs at: https://bugzilla.redhat.com/enter_bug.cgi?product=LVM%20and%20device-mapper or open issues at: https://github.com/lvmteam/lvm2/issues The source code repository used until 7th June 2012 is accessible using CVS: cvs -d :pserver:cvs@sourceware.org:/cvs/lvm2 login cvs cvs -d :pserver:cvs@sourceware.org:/cvs/lvm2 checkout LVM2 The password is cvs.