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Add check if partition table re-read work around code is needed

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A patch to alleviate the "failure to inform kernel of partition
changes problem" (bug #604298) has been included in parted-2.2.
Hence when parted-2.2 or higher is used, the work around code in
GParted is not required.
This commit is contained in:
Curtis Gedak 2010-03-01 11:04:17 -07:00
parent 19317b9c4a
commit 39208ba2af
2 changed files with 54 additions and 2 deletions
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51
configure.in
View file

@ -82,6 +82,55 @@ int main ()
LIBS="$LIBS_save"
dnl======================
dnl check whether libparted >= 2.2 (has improved partition table re-read code)
dnl======================
LIBPARTED_VERSION=2.2
AC_MSG_CHECKING(if libparted >= $LIBPARTED_VERSION (has improved pt re-read))
LIBS_save="$LIBS"
LIBS="-lparted -luuid -ldl"
need_work_around=yes
AC_TRY_RUN(
#include <stdio.h>
#include <parted/parted.h>
int main ()
{
int min_major = 0;
int min_minor = 0;
int min_micro = 0;
int major = 0;
int minor = 0;
int micro = 0;
if ( ( sscanf( "$LIBPARTED_VERSION", "%d.%d.%d", &min_major, &min_minor, &min_micro ) == 3 ) ||
( sscanf( "$LIBPARTED_VERSION", "%d.%d", &min_major, &min_minor ) == 2 ) ||
( sscanf( "$LIBPARTED_VERSION", "%d", &min_major ) == 1 )
)
{
if ( ( sscanf( ped_get_version(), "%d.%d.%d", &major, &minor, &micro ) == 3 ) ||
( sscanf( ped_get_version(), "%d.%d", &major, &minor ) == 2 ) ||
( sscanf( ped_get_version(), "%d", &major ) == 1 )
)
{
return ! ( (major > min_major) ||
( (major == min_major) && (minor > min_minor) ) ||
( (major == min_major) && (minor == min_minor) && (micro >= min_micro) )
) ;
}
}
return 1 ;
}
,[AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_LIBPARTED_2_2_0_PLUS], [1], [Define to 1 if libparted contains improved partition table re-read code])
need_pt_reread_work_around=no]
,[AC_MSG_RESULT(no)
need_pt_reread_work_around=yes]
)
LIBS="$LIBS_save"
dnl GTKMM
PKG_CHECK_MODULES(GTKMM, gtkmm-2.4 > 2.8 )
AC_SUBST(GTKMM_LIBS)
@ -147,5 +196,7 @@ echo " Installing into prefix : $prefix"
echo ""
echo " Build documentation? : $enable_doc"
echo ""
echo " Need pt re-read work around? : $need_pt_reread_work_around"
echo ""
echo " If all settings are OK, type make and make install "
echo "========================================================"

5
src/GParted_Core.cc
View file

@ -2783,8 +2783,8 @@ bool GParted_Core::commit_to_os( std::time_t timeout )
else
{
succes = ped_disk_commit_to_os( lp_disk ) ;
//FIXME: Work around to try to alleviate problems caused by
#ifndef HAVE_LIBPARTED_2_2_0_PLUS
//Work around to try to alleviate problems caused by
// bug #604298 - Failure to inform kernel of partition changes
// If not successful the first time, try one more time.
if ( ! succes )
@ -2792,6 +2792,7 @@ bool GParted_Core::commit_to_os( std::time_t timeout )
sleep( 1 ) ;
succes = ped_disk_commit_to_os( lp_disk ) ;
}
#endif
}
settle_device( timeout ) ;