On systems where is multi-path storage device is problem with duplicated
filesystems. The solution is select "the best" device. This is possible
by device-mapper library.
Short quotation from RH bugzilla:
With my patch, all dm devices remains in libblkid cache.
Only the top level dm devices are given high priority
and more appropriate node names (i.e. /dev/mapper/*) are used.
For example, if we have linear mapped dm device "ov1" over
dm device "disk1p3" which is multipath mapped to /dev/sdd3 and /dev/sdh3:
# dmsetup.static ls --tree
ov1 (253:5) <-- /dev/mapper/ov1 or /dev/dm-5
`-disk1p3 (253:4) <-- /dev/mapper/disk1p3 or /dev/dm-4
`-disk1 (253:0)
|- (8:112) <-- /dev/sdh
`- (8:48) <-- /dev/sdd
Original version of blkid will show:
# ./orig/blkid -t LABEL=mpdisk1p3 -l
/dev/sdd3: LABEL="mpdisk1p3" ... TYPE="ext3"
With my patch, blkid will show:
# ./deptree/blkid -t LABEL=mpdisk1p3 -l
/dev/mapper/ov1: LABEL="mpdisk1p3" ... TYPE="ext3"
In blkid cache, all devices are listed:
# ./orig/blkid -t LABEL=mpdisk1p3
/dev/sdd3: LABEL="mpdisk1p3" ... TYPE="ext3"
/dev/sdh3: LABEL="mpdisk1p3" ... TYPE="ext3"
/dev/dm-4: LABEL="mpdisk1p3" ... TYPE="ext3"
/dev/dm-5: LABEL="mpdisk1p3" ... TYPE="ext3"
# ./deptree/blkid -t LABEL=mpdisk1p3
/dev/mapper/ov1: LABEL="mpdisk1p3" ... TYPE="ext3"
/dev/sdd3: LABEL="mpdisk1p3" ... TYPE="ext3"
/dev/sdh3: LABEL="mpdisk1p3" ... TYPE="ext3"
/dev/dm-4: LABEL="mpdisk1p3" ... TYPE="ext3"
For more details see discussion on:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=156324
Addresses Red Hat Bug: #156324
Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Use BUILD_CCFLAGS and BUILD_LDFLAGS instead of CCFLAGS and LDFLAGS in
the build system when building files in the util directory which are
needed during the build process. This avoids potential problems when
cross-compiling some of the options are not recognized as valid by the
host compiler. (Addresses Sourceforge Bug #1261547)
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Rearrange -I options to give local includes precedence over
/usr/local/include, to unbreak the build when an older
e2fsprogs version (with includes) is installed under
/usr/local (for instance, on FreeBSD).
correctly.
Update Makefile dependencies.
Update "make depend" production so that it filters out comments
inserted by newer gcc compilers.
Remove sync from e2fsck's "make all" target.
some generated files, by having subst update the modtime on these
files even when the generated file hasn't changed. We do this with
generated files that do not have any downstream dependencies.
that it will compile on modern systems. The top-level makefile does not recurse
into the ext2ed directory for now, pending determination of whether the original
author is still maintaining ext2ed.
The documentation files have been renamed to remove the version from the filename.
In addition, the SGML files have been converted from LinuxDoc to DocBook.
The way root_bindir, root_sbindir, and root_libdir have been changed so that
if root_prefix is not set, the values set by the configure command-line options to
set the directory names using --bindir, --sbindir, --libdir will affect the
root_bindir, et.al Makefile variables.
.cvsignore in include/asm directory so it can disappear. Updated
makefile dependencies, and stop including <topsrc>/include in the
-I search path, since it's no longer needed.
e2image.c, mke2fs.c, mklost+found.c, tune2fs.c, util.c, uuidgen.c: Fix
gcc -Wall complaints, including one bug in tune2fs caused by a block
automatic shadowing version of the variable we really wanted to use,
which broke the logic testing to see if the filesystem was mounted.
ChangeLog, MCONFIG.in:
(gcc-wall-new): Added new target which forgoes the make clean so we
only check the newly modified .c files.
MCONFIG.in: Change --enable-gcc-wall handling so that it's no longer a
configure option, but something which is done when the developer uses
the command "make gcc-wall".
configure.in: Remove test for ino_t, since we don't use it any more
(we always use our own ext2_ino_t). Remove --enable-gcc-wall support.
Add test for sys/ioctl.h
.del-types.h.in~ca55114a:
Remove definition of ino_t
ChangeLog, Makefile.in, ext2fs.h, flushb.c, jump.funcs:
flushb.c (ext2fs_sync_device): New function which centralizes all of
the places which might try to use the BLKFLSBUF or FDFLUSH ioctls (and
usually failing to define them since the system header files don't
usually do this for us, and we're trying to avoid usage of kernel
include files now.)
MCONFIG.in: Always include src/include in the include path now. This
forces us to use our internally provided ext2_fs.h file, for sanity's
sake.
configure.in: If linux/fs.h isn't found, then add build/include into
the include path only, since src/include is now always included.
Removed define of HAVE_LINUX_FS_H, since we're not using it any more.
Removed i_version vs. i_generation check, since with the included
header file it is a permanently known quantity. Removed AC_C_CROSS
since it has been merged into AC_PROG_CC in autoconf 2.13.
MCONFIG.in (DEPLIBUUID): Since LIBUUID can sometimes include
"-lsocket" we need a separate DEPLIBUUID that can be used in
Makefile's dependency rules.
ChangeLog, Makefile.in:
Makefile.in: Since LIBUUID can sometimes include "-lsocket" we need a
separate DEPLIBUUID that can be used in Makefile's dependency rules.
MCONFIG.in (BUILD_CC):
configure.in (BUILD_CC): If cross compiling, find the native C
compiler and set it to BUILD_CC so that we can successfully build
util/subst.
ChangeLog, Makefile.in:
Makefile.in (subst): Build subst using $(BUILD_CC), since it's a
helper program which must be built using the native C compiler during
a cross-compilation.
Makefile.in:
Update dependencies.
Makefile.in (depend): Make "make depend" at the top-level
automatically recurse through all subdirectories.
configure.in: Test for perl since it's needed by wordwrap.pl
MCONFIG.in (depend): Fix make-depend so that it the dependencies are
automatically word-wrapped. Added the makefile macro $(PERL).
wordwrap.pl: New file which does the word wrapping.
fileio.c (ext2fs_file_open): Remove obsolete comment stating that we
don't handle writing yet (we do). Fixed bug where we weren't
allocating a big enough buffer for ext2_bmap.
ChangeLog, ext2fs.h:
ext2fs.h: Add feature definition for AFS IMAGIC inodes.
ChangeLog, MCONFIG.in, config.sub:
MCONFIG.in: Define man1dir, man3dir, and man8dir in terms of mandir.
config.sub: Update config.sub from autoconf 2.13 so that it will
recognize new machine types from the Alpha.
configure:
Update to match latest changes to configure.in
configure.in: Change how the installation directions are selected.
Previously, we had prefix and usr_prefix, where prefix was '' and
usr_prefix was /usr, and we then defined bindir, ubindir, libdir,
ulibdir, etc. in terms of that. In autoconf 2.12, it's possible to
override bindir, libdir, etc., and so in order to make our
installation directory makefile variables more in line with autoconf
2.12, I've changed all of the various makefiles to use prefix and
root_prefix, where the default Linux definitions are /usr and '',
respectively. What used to be bindir is now root_bindir, and what
used to be ubindir, is now bindir.
MCONFIG.in: Change directories to match with new installation
directory convention (see above). Add Makefile
dependencies for makefile fragments, and define
DEP_LIB_MAKEFILES which library makefiles can use to
define DEP_MAKEFILES, so that the library makefiles will
get regenerated when the makefile fragments change.
Remove the cat?dir variables, since we aren't creating
those directories any more.
Makefile.in: Add top-level uninstall targets.
e2fsprogs-1.12.spec: Add to the RPM package the e2label man page, and
to reflect that fact that we now compile_et and mk_cmds for the
development package.
ChangeLog, Makefile.in:
Makefile.in: Add uninstall target (which is a just a no-op).
version.h, RELEASE-NOTES:
Update to interim version numbers for release purposes.
Makefile.in: Use && after a cd command so that the right thing happens
if the directory is missing. Don't compile man pages upon
installation any more, since modern Linux systems don't have
/usr/man/cat? anymore (they typically cache man pages in /var/catman
and delete them if they haven't been used in a while, to save on disk
space, and because CPU's are fast enough these days that you can get
away with this).
MCONFIG.in: Add a new makefile variable for the share directory (i.e.,
/usr/share). Make an autoconf magic make rule so that
$(top_builddir)/util/subst.conf gets rebuilt automatically when
necessary.
Theodore Ts'o