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From: snitzer@sourceware.org
To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org
Subject: LVM2 ./configure.in doc/example.conf.in lib/co ...
Date: Fri, 20 Aug 2010 22:25:00 -0000 [thread overview]
Message-ID: <20100820222501.4701.qmail@sourceware.org> (raw)
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: snitzer@sourceware.org 2010-08-20 22:24:59
Modified files:
. : configure.in
doc : example.conf.in
lib/config : defaults.h
Log message:
Switch to using configure --with-default-data-alignment=<NUM> to
establish DEFAULT_DATA_ALIGNMENT. Again, 0=64KiB, 1=1MiB, 2=2MiB
Default is 1.
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/configure.in.diff?cvsroot=lvm2&r1=1.153&r2=1.154
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/doc/example.conf.in.diff?cvsroot=lvm2&r1=1.9&r2=1.10
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/config/defaults.h.diff?cvsroot=lvm2&r1=1.67&r2=1.68
--- LVM2/configure.in 2010/08/16 22:54:35 1.153
+++ LVM2/configure.in 2010/08/20 22:24:58 1.154
@@ -1185,6 +1185,15 @@
[Name of default locking directory.])
################################################################################
+dnl -- Setup default data alignment
+AC_ARG_WITH(default-data-alignment,
+ AC_HELP_STRING([--with-default-data-alignment=NUM],
+ [set the default data alignment in MiB [[1]]]),
+ DEFAULT_DATA_ALIGNMENT=$withval, DEFAULT_DATA_ALIGNMENT=1)
+AC_DEFINE_UNQUOTED(DEFAULT_DATA_ALIGNMENT, [$DEFAULT_DATA_ALIGNMENT],
+ [Default data alignment.])
+
+################################################################################
dnl -- which kernel interface to use (ioctl only)
AC_MSG_CHECKING(for kernel interface choice)
AC_ARG_WITH(interface,
@@ -1244,6 +1253,7 @@
AC_SUBST(DEFAULT_ARCHIVE_SUBDIR)
AC_SUBST(DEFAULT_BACKUP_SUBDIR)
AC_SUBST(DEFAULT_CACHE_SUBDIR)
+AC_SUBST(DEFAULT_DATA_ALIGNMENT)
AC_SUBST(DEFAULT_LOCK_DIR)
AC_SUBST(DEFAULT_RUN_DIR)
AC_SUBST(DEVMAPPER)
--- LVM2/doc/example.conf.in 2010/08/20 20:59:05 1.9
+++ LVM2/doc/example.conf.in 2010/08/20 22:24:58 1.10
@@ -101,7 +101,7 @@
# Default alignment of the start of a data area in MB. If set to 0,
# a small value of 64KB will be used, which was the default until
# LVM2 version 2.02.73. Set to 1 for 1MiB, 2 for 2MiB, etc.
- default_data_alignment = 1
+ # default_data_alignment = @DEFAULT_DATA_ALIGNMENT@
# By default, the start of a PV's data area will be a multiple of
# the 'minimum_io_size' or 'optimal_io_size' exposed in sysfs.
--- LVM2/lib/config/defaults.h 2010/08/20 20:59:05 1.67
+++ LVM2/lib/config/defaults.h 2010/08/20 22:24:59 1.68
@@ -34,7 +34,6 @@
#define DEFAULT_MD_CHUNK_ALIGNMENT 1
#define DEFAULT_IGNORE_SUSPENDED_DEVICES 1
#define DEFAULT_REQUIRE_RESTOREFILE_WITH_UUID 1
-#define DEFAULT_DATA_ALIGNMENT 1
#define DEFAULT_DATA_ALIGNMENT_OFFSET_DETECTION 1
#define DEFAULT_DATA_ALIGNMENT_DETECTION 1
reply other threads:[~2010-08-20 22:25 UTC|newest]
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