diff options
| -rwxr-xr-x | configure | 57 | ||||
| -rw-r--r-- | configure.ac | 27 | ||||
| -rw-r--r-- | include/configure.h.in | 3 |
3 files changed, 87 insertions, 0 deletions
@@ -963,6 +963,7 @@ enable_fsadm enable_blkdeactivate enable_dmeventd enable_selinux +enable_blkzeroout enable_nls with_localedir with_confdir @@ -1684,6 +1685,7 @@ Optional Features: --disable-blkdeactivate disable blkdeactivate --enable-dmeventd enable the device-mapper event daemon --disable-selinux disable selinux support + --disable-blkzeroout do not use BLKZEROOUT for device zeroing --enable-nls enable Native Language Support Optional Packages: @@ -12708,6 +12710,61 @@ fi fi ################################################################################ + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BLKZEROOUT in sys/ioctl.h." >&5 +$as_echo_n "checking for BLKZEROOUT in sys/ioctl.h.... " >&6; } +if ${ac_cv_have_blkzeroout+:} false; then : + $as_echo_n "(cached) " >&6 +else + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#include <sys/ioctl.h> +#include <linux/fs.h> +int bar(void) { return ioctl(0, BLKZEROOUT, 0); } + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + ac_cv_have_blkzeroout=yes +else + ac_cv_have_blkzeroout=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have_blkzeroout" >&5 +$as_echo "$ac_cv_have_blkzeroout" >&6; } + + +# Check whether --enable-blkzeroout was given. +if test "${enable_blkzeroout+set}" = set; then : + enableval=$enable_blkzeroout; BLKZEROOUT=$enableval +else + BLKZEROOUT=yes +fi + + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to use BLKZEROOUT for device zeroing" >&5 +$as_echo_n "checking whether to use BLKZEROOUT for device zeroing... " >&6; } +if test "$BLKZEROOUT" = yes; then + if test $ac_cv_have_blkzeroout = yes; then : + +$as_echo "#define HAVE_BLKZEROOUT 1" >>confdefs.h + +else + BLKZEROOUT=no +fi +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $BLKZEROOUT" >&5 +$as_echo "$BLKZEROOUT" >&6; } + + +################################################################################ RT_LIBS= HAVE_REALTIME=no if test "$REALTIME" = yes; then diff --git a/configure.ac b/configure.ac index 148bde426..341591561 100644 --- a/configure.ac +++ b/configure.ac @@ -1352,6 +1352,33 @@ if test "$SELINUX" = yes; then fi ################################################################################ +dnl -- Check BLKZEROOUT support + +AC_CACHE_CHECK([for BLKZEROOUT in sys/ioctl.h.], + [ac_cv_have_blkzeroout], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM( +[#include <sys/ioctl.h> +#include <linux/fs.h> +int bar(void) { return ioctl(0, BLKZEROOUT, 0); }] + )], [ac_cv_have_blkzeroout=yes], [ac_cv_have_blkzeroout=no])]) + + +AC_ARG_ENABLE(blkzeroout, + AC_HELP_STRING([--disable-blkzeroout], + [do not use BLKZEROOUT for device zeroing]), + BLKZEROOUT=$enableval, BLKZEROOUT=yes) + +AC_MSG_CHECKING(whether to use BLKZEROOUT for device zeroing) +if test "$BLKZEROOUT" = yes; then + AC_IF_YES(ac_cv_have_blkzeroout, + AC_DEFINE(HAVE_BLKZEROOUT, 1, + [Define if ioctl BLKZEROOUT can be used for device zeroing.]), + BLKZEROOUT=no) +fi +AC_MSG_RESULT($BLKZEROOUT) + + +################################################################################ dnl -- Check for realtime clock support RT_LIBS= HAVE_REALTIME=no diff --git a/include/configure.h.in b/include/configure.h.in index 46d5aef20..59b4da86f 100644 --- a/include/configure.h.in +++ b/include/configure.h.in @@ -154,6 +154,9 @@ /* Define to 1 if you have the `atexit' function. */ #undef HAVE_ATEXIT +/* Define if ioctl BLKZEROOUT can be used for device zeroing. */ +#undef HAVE_BLKZEROOUT + /* Define to 1 if canonicalize_file_name is available. */ #undef HAVE_CANONICALIZE_FILE_NAME |