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When mapping regions to a file descriptor, a temporary table of extent descriptors is built using the dm_pool object building interface. Previously this use borrowed the dms->mem region and counter table pool (since nothing can interleave with the allocation while the caller is still in dm_stats_create_regions_from_fd()). This turns out to be problematic for error recovery. When a region creation operation fails partway through file mapping, we need to roll back the set of already created regions and this requires a listed handle: the dm_stats_list() will then allocate from the same pool as the extents; we either have to throw away valid list data, or leak the extent table, to return the handle in a valid state. Avoid this problem by creating a new, temporary mem pool in _stats_create_file_regions() to hold the extent data, and discarding it on exit from the function.
This tree contains the LVM2 and device-mapper tools and libraries. 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://sources.redhat.com/pub/lvm2/ The source code is stored in git: http://git.fedorahosted.org/git/lvm2.git git clone git://git.fedorahosted.org/git/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 The source code repository used until 7th June 2012 is accessible here: http://sources.redhat.com/cgi-bin/cvsweb.cgi/LVM2/?cvsroot=lvm2.