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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. |
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| autoconf | ||
| conf | ||
| coverity | ||
| daemons | ||
| doc | ||
| include | ||
| lib | ||
| libdaemon | ||
| libdm | ||
| liblvm | ||
| man | ||
| nix | ||
| old-tests | ||
| po | ||
| python | ||
| report-generators | ||
| reports | ||
| scripts | ||
| spec | ||
| test | ||
| tools | ||
| udev | ||
| unit-tests | ||
| .gitignore | ||
| acinclude.m4 | ||
| aclocal.m4 | ||
| configure | ||
| configure.in | ||
| COPYING | ||
| COPYING.LIB | ||
| INSTALL | ||
| make.tmpl.in | ||
| Makefile.in | ||
| README | ||
| VERSION | ||
| VERSION_DM | ||
| WHATS_NEW | ||
| WHATS_NEW_DM | ||
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.