c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-25 03:37:45 +03:00
Code Issues Packages Projects Releases Wiki Activity

Linux 2.6.36 compat, use REQ_FAILFAST_MASK

Browse Source 
As of linux-2.6.36 the BIO_RW_FAILFAST and REQ_FAILFAST flags
have been unified under the REQ_* names.  These flags always had
to be kept in-sync so this is a nice step forward, unfortunately
it means we need to be careful to only use the new unified flags
when the BIO_RW_* flags are not defined.  Additional autoconf
checks were added for this and if it is ever unclear which method
to use no flags are set.  This is safe but may result in longer
delays before a disk is failed.

Perferred interface for setting FAILFAST on a bio:
  2.6.12-2.6.27: BIO_RW_FAILFAST
  2.6.28-2.6.35: BIO_RW_FAILFAST_{DEV|TRANSPORT|DRIVER}
  2.6.36-2.6.xx: REQ_FAILFAST_{DEV|TRANSPORT|DRIVER}
This commit is contained in:
Brian Behlendorf
2010-11-10 14:40:38 -08:00
parent b04cffc9b0
commit f4af6bb783
5 changed files with 329 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
configure
Vendored
+266 -2
View File
@@ -12613,6 +12613,72 @@ fi
{ $as_echo "$as_me:$LINENO: checking whether BIO_RW_FAILFAST is defined" >&5
$as_echo_n "checking whether BIO_RW_FAILFAST is defined... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.c
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <linux/bio.h>
int
main (void)
{
int flags;
flags = (1 << BIO_RW_FAILFAST);
;
return 0;
}
_ACEOF
rm -Rf build && mkdir -p build
echo "obj-m := conftest.o" >build/Makefile
if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
{ $as_echo "$as_me:$LINENO: result: yes" >&5
$as_echo "yes" >&6; }
cat >>confdefs.h <<\_ACEOF
#define HAVE_BIO_RW_FAILFAST 1
_ACEOF
else
$as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ $as_echo "$as_me:$LINENO: result: no" >&5
$as_echo "no" >&6; }
fi
rm -Rf build
{ $as_echo "$as_me:$LINENO: checking whether BIO_RW_FAILFAST_* are defined" >&5
$as_echo_n "checking whether BIO_RW_FAILFAST_* are defined... " >&6; }
@@ -12661,7 +12727,73 @@ _ACEOF
$as_echo "yes" >&6; }
cat >>confdefs.h <<\_ACEOF
#define HAVE_BIO_RW_FAILFAST 1
#define HAVE_BIO_RW_FAILFAST_DTD 1
_ACEOF
else
$as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ $as_echo "$as_me:$LINENO: result: no" >&5
$as_echo "no" >&6; }
fi
rm -Rf build
{ $as_echo "$as_me:$LINENO: checking whether REQ_FAILFAST_MASK is defined" >&5
$as_echo_n "checking whether REQ_FAILFAST_MASK is defined... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.c
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <linux/bio.h>
int
main (void)
{
int flags;
flags = REQ_FAILFAST_MASK;
;
return 0;
}
_ACEOF
rm -Rf build && mkdir -p build
echo "obj-m := conftest.o" >build/Makefile
if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
{ $as_echo "$as_me:$LINENO: result: yes" >&5
$as_echo "yes" >&6; }
cat >>confdefs.h <<\_ACEOF
#define HAVE_BIO_REQ_FAILFAST_MASK 1
_ACEOF
@@ -15684,6 +15816,72 @@ fi
{ $as_echo "$as_me:$LINENO: checking whether BIO_RW_FAILFAST is defined" >&5
$as_echo_n "checking whether BIO_RW_FAILFAST is defined... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.c
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <linux/bio.h>
int
main (void)
{
int flags;
flags = (1 << BIO_RW_FAILFAST);
;
return 0;
}
_ACEOF
rm -Rf build && mkdir -p build
echo "obj-m := conftest.o" >build/Makefile
if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
{ $as_echo "$as_me:$LINENO: result: yes" >&5
$as_echo "yes" >&6; }
cat >>confdefs.h <<\_ACEOF
#define HAVE_BIO_RW_FAILFAST 1
_ACEOF
else
$as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ $as_echo "$as_me:$LINENO: result: no" >&5
$as_echo "no" >&6; }
fi
rm -Rf build
{ $as_echo "$as_me:$LINENO: checking whether BIO_RW_FAILFAST_* are defined" >&5
$as_echo_n "checking whether BIO_RW_FAILFAST_* are defined... " >&6; }
@@ -15732,7 +15930,73 @@ _ACEOF
$as_echo "yes" >&6; }
cat >>confdefs.h <<\_ACEOF
#define HAVE_BIO_RW_FAILFAST 1
#define HAVE_BIO_RW_FAILFAST_DTD 1
_ACEOF
else
$as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
{ $as_echo "$as_me:$LINENO: result: no" >&5
$as_echo "no" >&6; }
fi
rm -Rf build
{ $as_echo "$as_me:$LINENO: checking whether REQ_FAILFAST_MASK is defined" >&5
$as_echo_n "checking whether REQ_FAILFAST_MASK is defined... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.c
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <linux/bio.h>
int
main (void)
{
int flags;
flags = REQ_FAILFAST_MASK;
;
return 0;
}
_ACEOF
rm -Rf build && mkdir -p build
echo "obj-m := conftest.o" >build/Makefile
if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
{ $as_echo "$as_me:$LINENO: result: yes" >&5
$as_echo "yes" >&6; }
cat >>confdefs.h <<\_ACEOF
#define HAVE_BIO_REQ_FAILFAST_MASK 1
_ACEOF