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Atomic64 compatibility for 32-bit systems without kernel support.
This patch is another step towards updating the code to handle the 32-bit kernels which I have not been regularly testing. This changes do not really impact the common case I'm expected which is the latest kernel running on an x86_64 arch. Until the linux-2.6.31 kernel the x86 arch did not have support for 64-bit atomic operations. Additionally, the new atomic_compat.h support for this case was wrong because it embedded a spinlock in the atomic variable which must always and only be 64-bits total. To handle these 32-bit issues we now simply fall back to the --enable-atomic-spinlock implementation if the kernel does not provide the 64-bit atomic funcs. The second issue this patch addresses is the DEBUG_KMEM assumption that there will always be atomic64 funcs available. On 32-bit archs this may not be true, and actually that's just fine. In that case the kernel will will never be able to allocate more the 32-bits worth anyway. So just check if atomic64 funcs are available, if they are not it means this is a 32-bit machine and we can safely use atomic_t's instead.
This commit is contained in:
Brian Behlendorf
parent
db1aa22297
commit
d04c8a563c
@ -25,10 +25,9 @@ AC_DEFUN([SPL_AC_CONFIG_KERNEL], [
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SPL_AC_DEBUG_KMEM
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SPL_AC_DEBUG_KMEM_TRACKING
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SPL_AC_ATOMIC_SPINLOCK
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SPL_AC_TYPE_UINTPTR_T
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SPL_AC_TYPE_ATOMIC64_T
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SPL_AC_TYPE_ATOMIC64_CMPXCHG
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SPL_AC_TYPE_ATOMIC64_XCHG
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SPL_AC_TYPE_UINTPTR_T
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SPL_AC_3ARGS_INIT_WORK
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SPL_AC_2ARGS_REGISTER_SYSCTL
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SPL_AC_SET_SHRINKER
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@ -285,27 +284,6 @@ AC_DEFUN([SPL_AC_DEBUG_KMEM_TRACKING], [
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AC_MSG_RESULT([$enable_debug_kmem_tracking])
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])
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dnl #
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dnl # Use the atomic implemenation based on global spinlocks. This
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dnl # should never be needed, however it has been left in place as
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dnl # a fallback option in case problems are observed with directly
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dnl # mapping to the native Linux atomic operations.
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dnl #
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AC_DEFUN([SPL_AC_ATOMIC_SPINLOCK], [
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AC_ARG_ENABLE([atomic-spinlocks],
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[AS_HELP_STRING([--enable-atomic-spinlocks],
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[Atomic types use spinlocks @<:@default=no@:>@])],
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[],
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[enable_atomic_spinlocks=no])
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AS_IF([test "x$enable_atomic_spinlocks" = xyes],
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[AC_DEFINE([ATOMIC_SPINLOCK], [1],
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[Atomic types use spinlocks])])
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AC_MSG_CHECKING([whether atomic types use spinlocks])
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AC_MSG_RESULT([$enable_atomic_spinlocks])
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])
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dnl #
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dnl # SPL_LINUX_CONFTEST
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dnl #
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@ -433,41 +411,55 @@ AC_DEFUN([SPL_CHECK_HEADER],
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])
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dnl #
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dnl # 2.6.24 API change,
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dnl # check if uintptr_t typedef is defined
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dnl # Use the atomic implemenation based on global spinlocks. This
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dnl # should only be needed by 32-bit kernels which do not provide
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dnl # the atomic64_* API. It may be optionally enabled as a fallback
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dnl # if problems are observed with the direct mapping to the native
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dnl # Linux atomic operations. You may not disable atomic spinlocks
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dnl # if you kernel does not an atomic64_* API.
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dnl #
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AC_DEFUN([SPL_AC_TYPE_UINTPTR_T],
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[AC_MSG_CHECKING([whether kernel defines uintptr_t])
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SPL_LINUX_TRY_COMPILE([
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#include <linux/types.h>
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],[
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uintptr_t *ptr;
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_UINTPTR_T, 1,
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[kernel defines uintptr_t])
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],[
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AC_MSG_RESULT([no])
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])
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])
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AC_DEFUN([SPL_AC_ATOMIC_SPINLOCK], [
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AC_ARG_ENABLE([atomic-spinlocks],
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[AS_HELP_STRING([--enable-atomic-spinlocks],
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[Atomic types use spinlocks @<:@default=check@:>@])],
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[],
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[enable_atomic_spinlocks=check])
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dnl #
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dnl # 2.6.x API change,
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dnl # check if atomic64_t typedef is defined
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dnl #
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AC_DEFUN([SPL_AC_TYPE_ATOMIC64_T],
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[AC_MSG_CHECKING([whether kernel defines atomic64_t])
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SPL_LINUX_TRY_COMPILE([
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#include <asm/atomic.h>
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],[
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atomic64_t *ptr;
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],[
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AC_MSG_RESULT([yes])
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have_atomic64_t=yes
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AC_DEFINE(HAVE_ATOMIC64_T, 1,
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[kernel defines atomic64_t])
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[kernel defines atomic64_t])
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],[
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AC_MSG_RESULT([no])
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have_atomic64_t=no
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])
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AS_IF([test "x$enable_atomic_spinlocks" = xcheck], [
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AS_IF([test "x$have_atomic64_t" = xyes], [
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enable_atomic_spinlocks=no
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],[
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enable_atomic_spinlocks=yes
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])
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])
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AS_IF([test "x$enable_atomic_spinlocks" = xyes], [
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AC_DEFINE([ATOMIC_SPINLOCK], [1],
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[Atomic types use spinlocks])
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],[
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AS_IF([test "x$have_atomic64_t" = xno], [
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AC_MSG_FAILURE(
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[--disable-atomic-spinlocks given but required atomic64 support is unavailable])
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])
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])
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AC_MSG_CHECKING([whether atomic types use spinlocks])
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AC_MSG_RESULT([$enable_atomic_spinlocks])
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AC_MSG_CHECKING([whether kernel defines atomic64_t])
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AC_MSG_RESULT([$have_atomic64_t])
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])
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dnl #
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@ -508,6 +500,25 @@ AC_DEFUN([SPL_AC_TYPE_ATOMIC64_XCHG],
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])
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])
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dnl #
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dnl # 2.6.24 API change,
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dnl # check if uintptr_t typedef is defined
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dnl #
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AC_DEFUN([SPL_AC_TYPE_UINTPTR_T],
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[AC_MSG_CHECKING([whether kernel defines uintptr_t])
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SPL_LINUX_TRY_COMPILE([
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#include <linux/types.h>
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],[
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uintptr_t *ptr;
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],[
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AC_MSG_RESULT([yes])
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AC_DEFINE(HAVE_UINTPTR_T, 1,
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[kernel defines uintptr_t])
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],[
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AC_MSG_RESULT([no])
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])
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])
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dnl #
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dnl # 2.6.20 API change,
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dnl # INIT_WORK use 2 args and not store data inside
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406
configure
vendored
406
configure
vendored
@ -1039,7 +1039,7 @@ Optional Features:
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--enable-debug-kmem-tracking
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Enable detailed kmem tracking [default=no]
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--enable-atomic-spinlocks
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Atomic types use spinlocks [default=no]
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Atomic types use spinlocks [default=check]
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Optional Packages:
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--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
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@ -19160,89 +19160,9 @@ if test "${enable_atomic_spinlocks+set}" = set; then
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enableval="$enable_atomic_spinlocks"
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else
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enable_atomic_spinlocks=no
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enable_atomic_spinlocks=check
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fi;
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if test "x$enable_atomic_spinlocks" = xyes; then
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cat >>confdefs.h <<\_ACEOF
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#define ATOMIC_SPINLOCK 1
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_ACEOF
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fi
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echo "$as_me:$LINENO: checking whether atomic types use spinlocks" >&5
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echo $ECHO_N "checking whether atomic types use spinlocks... $ECHO_C" >&6
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echo "$as_me:$LINENO: result: $enable_atomic_spinlocks" >&5
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echo "${ECHO_T}$enable_atomic_spinlocks" >&6
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echo "$as_me:$LINENO: checking whether kernel defines uintptr_t" >&5
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echo $ECHO_N "checking whether kernel defines uintptr_t... $ECHO_C" >&6
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cat >conftest.c <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <linux/types.h>
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int
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main (void)
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{
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uintptr_t *ptr;
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;
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return 0;
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}
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_ACEOF
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rm -Rf build && mkdir -p build
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echo "obj-m := conftest.o" >build/Makefile
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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'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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echo "$as_me:$LINENO: result: yes" >&5
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echo "${ECHO_T}yes" >&6
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_UINTPTR_T 1
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_ACEOF
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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echo "$as_me:$LINENO: result: no" >&5
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echo "${ECHO_T}no" >&6
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fi
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rm -Rf build
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echo "$as_me:$LINENO: checking whether kernel defines atomic64_t" >&5
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echo $ECHO_N "checking whether kernel defines atomic64_t... $ECHO_C" >&6
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cat >conftest.c <<_ACEOF
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@ -19282,8 +19202,7 @@ _ACEOF
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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echo "$as_me:$LINENO: result: yes" >&5
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echo "${ECHO_T}yes" >&6
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have_atomic64_t=yes
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_ATOMIC64_T 1
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@ -19294,8 +19213,7 @@ else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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echo "$as_me:$LINENO: result: no" >&5
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echo "${ECHO_T}no" >&6
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have_atomic64_t=no
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@ -19305,6 +19223,56 @@ fi
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if test "x$enable_atomic_spinlocks" = xcheck; then
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if test "x$have_atomic64_t" = xyes; then
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enable_atomic_spinlocks=no
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else
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enable_atomic_spinlocks=yes
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fi
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fi
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if test "x$enable_atomic_spinlocks" = xyes; then
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cat >>confdefs.h <<\_ACEOF
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#define ATOMIC_SPINLOCK 1
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_ACEOF
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else
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if test "x$have_atomic64_t" = xno; then
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{ { echo "$as_me:$LINENO: error: --disable-atomic-spinlocks given but required atomic64 support is unavailable
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See \`config.log' for more details." >&5
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echo "$as_me: error: --disable-atomic-spinlocks given but required atomic64 support is unavailable
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See \`config.log' for more details." >&2;}
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{ (exit 1); exit 1; }; }
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fi
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fi
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echo "$as_me:$LINENO: checking whether atomic types use spinlocks" >&5
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echo $ECHO_N "checking whether atomic types use spinlocks... $ECHO_C" >&6
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echo "$as_me:$LINENO: result: $enable_atomic_spinlocks" >&5
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echo "${ECHO_T}$enable_atomic_spinlocks" >&6
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echo "$as_me:$LINENO: checking whether kernel defines atomic64_t" >&5
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echo $ECHO_N "checking whether kernel defines atomic64_t... $ECHO_C" >&6
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echo "$as_me:$LINENO: result: $have_atomic64_t" >&5
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echo "${ECHO_T}$have_atomic64_t" >&6
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echo "$as_me:$LINENO: checking whether kernel defines atomic64_cmpxchg" >&5
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echo $ECHO_N "checking whether kernel defines atomic64_cmpxchg... $ECHO_C" >&6
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@ -19427,6 +19395,70 @@ echo "${ECHO_T}no" >&6
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fi
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rm -Rf build
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echo "$as_me:$LINENO: checking whether kernel defines uintptr_t" >&5
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echo $ECHO_N "checking whether kernel defines uintptr_t... $ECHO_C" >&6
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cat >conftest.c <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <linux/types.h>
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int
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main (void)
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{
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uintptr_t *ptr;
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;
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return 0;
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}
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_ACEOF
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rm -Rf build && mkdir -p build
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echo "obj-m := conftest.o" >build/Makefile
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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'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
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echo "$as_me:$LINENO: result: yes" >&5
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echo "${ECHO_T}yes" >&6
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_UINTPTR_T 1
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_ACEOF
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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echo "$as_me:$LINENO: result: no" >&5
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echo "${ECHO_T}no" >&6
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fi
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rm -Rf build
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@ -22409,89 +22441,9 @@ if test "${enable_atomic_spinlocks+set}" = set; then
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enableval="$enable_atomic_spinlocks"
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else
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enable_atomic_spinlocks=no
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enable_atomic_spinlocks=check
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fi;
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|
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if test "x$enable_atomic_spinlocks" = xyes; then
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|
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cat >>confdefs.h <<\_ACEOF
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#define ATOMIC_SPINLOCK 1
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_ACEOF
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fi
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echo "$as_me:$LINENO: checking whether atomic types use spinlocks" >&5
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echo $ECHO_N "checking whether atomic types use spinlocks... $ECHO_C" >&6
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echo "$as_me:$LINENO: result: $enable_atomic_spinlocks" >&5
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echo "${ECHO_T}$enable_atomic_spinlocks" >&6
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echo "$as_me:$LINENO: checking whether kernel defines uintptr_t" >&5
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echo $ECHO_N "checking whether kernel defines uintptr_t... $ECHO_C" >&6
|
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|
||||
|
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cat >conftest.c <<_ACEOF
|
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/* confdefs.h. */
|
||||
_ACEOF
|
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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|
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#include <linux/types.h>
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int
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main (void)
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{
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|
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uintptr_t *ptr;
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|
||||
;
|
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return 0;
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}
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|
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_ACEOF
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|
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rm -Rf build && mkdir -p build
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echo "obj-m := conftest.o" >build/Makefile
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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'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
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(exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }; then
|
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|
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echo "$as_me:$LINENO: result: yes" >&5
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echo "${ECHO_T}yes" >&6
|
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|
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cat >>confdefs.h <<\_ACEOF
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#define HAVE_UINTPTR_T 1
|
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_ACEOF
|
||||
|
||||
|
||||
else
|
||||
echo "$as_me: failed program was:" >&5
|
||||
sed 's/^/| /' conftest.$ac_ext >&5
|
||||
|
||||
echo "$as_me:$LINENO: result: no" >&5
|
||||
echo "${ECHO_T}no" >&6
|
||||
|
||||
|
||||
|
||||
fi
|
||||
|
||||
rm -Rf build
|
||||
|
||||
|
||||
|
||||
echo "$as_me:$LINENO: checking whether kernel defines atomic64_t" >&5
|
||||
echo $ECHO_N "checking whether kernel defines atomic64_t... $ECHO_C" >&6
|
||||
|
||||
|
||||
cat >conftest.c <<_ACEOF
|
||||
@ -22531,8 +22483,7 @@ _ACEOF
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; }; then
|
||||
|
||||
echo "$as_me:$LINENO: result: yes" >&5
|
||||
echo "${ECHO_T}yes" >&6
|
||||
have_atomic64_t=yes
|
||||
|
||||
cat >>confdefs.h <<\_ACEOF
|
||||
#define HAVE_ATOMIC64_T 1
|
||||
@ -22543,8 +22494,7 @@ else
|
||||
echo "$as_me: failed program was:" >&5
|
||||
sed 's/^/| /' conftest.$ac_ext >&5
|
||||
|
||||
echo "$as_me:$LINENO: result: no" >&5
|
||||
echo "${ECHO_T}no" >&6
|
||||
have_atomic64_t=no
|
||||
|
||||
|
||||
|
||||
@ -22554,6 +22504,56 @@ fi
|
||||
|
||||
|
||||
|
||||
if test "x$enable_atomic_spinlocks" = xcheck; then
|
||||
|
||||
if test "x$have_atomic64_t" = xyes; then
|
||||
|
||||
enable_atomic_spinlocks=no
|
||||
|
||||
else
|
||||
|
||||
enable_atomic_spinlocks=yes
|
||||
|
||||
fi
|
||||
|
||||
|
||||
fi
|
||||
|
||||
|
||||
if test "x$enable_atomic_spinlocks" = xyes; then
|
||||
|
||||
|
||||
cat >>confdefs.h <<\_ACEOF
|
||||
#define ATOMIC_SPINLOCK 1
|
||||
_ACEOF
|
||||
|
||||
|
||||
else
|
||||
|
||||
if test "x$have_atomic64_t" = xno; then
|
||||
|
||||
{ { echo "$as_me:$LINENO: error: --disable-atomic-spinlocks given but required atomic64 support is unavailable
|
||||
See \`config.log' for more details." >&5
|
||||
echo "$as_me: error: --disable-atomic-spinlocks given but required atomic64 support is unavailable
|
||||
See \`config.log' for more details." >&2;}
|
||||
{ (exit 1); exit 1; }; }
|
||||
|
||||
fi
|
||||
|
||||
|
||||
fi
|
||||
|
||||
|
||||
echo "$as_me:$LINENO: checking whether atomic types use spinlocks" >&5
|
||||
echo $ECHO_N "checking whether atomic types use spinlocks... $ECHO_C" >&6
|
||||
echo "$as_me:$LINENO: result: $enable_atomic_spinlocks" >&5
|
||||
echo "${ECHO_T}$enable_atomic_spinlocks" >&6
|
||||
|
||||
echo "$as_me:$LINENO: checking whether kernel defines atomic64_t" >&5
|
||||
echo $ECHO_N "checking whether kernel defines atomic64_t... $ECHO_C" >&6
|
||||
echo "$as_me:$LINENO: result: $have_atomic64_t" >&5
|
||||
echo "${ECHO_T}$have_atomic64_t" >&6
|
||||
|
||||
echo "$as_me:$LINENO: checking whether kernel defines atomic64_cmpxchg" >&5
|
||||
echo $ECHO_N "checking whether kernel defines atomic64_cmpxchg... $ECHO_C" >&6
|
||||
|
||||
@ -22676,6 +22676,70 @@ echo "${ECHO_T}no" >&6
|
||||
|
||||
|
||||
|
||||
fi
|
||||
|
||||
rm -Rf build
|
||||
|
||||
|
||||
|
||||
echo "$as_me:$LINENO: checking whether kernel defines uintptr_t" >&5
|
||||
echo $ECHO_N "checking whether kernel defines uintptr_t... $ECHO_C" >&6
|
||||
|
||||
|
||||
cat >conftest.c <<_ACEOF
|
||||
/* confdefs.h. */
|
||||
_ACEOF
|
||||
cat confdefs.h >>conftest.$ac_ext
|
||||
cat >>conftest.$ac_ext <<_ACEOF
|
||||
/* end confdefs.h. */
|
||||
|
||||
|
||||
#include <linux/types.h>
|
||||
|
||||
int
|
||||
main (void)
|
||||
{
|
||||
|
||||
uintptr_t *ptr;
|
||||
|
||||
;
|
||||
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 $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
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 $ac_try) 2>&5
|
||||
ac_status=$?
|
||||
echo "$as_me:$LINENO: \$? = $ac_status" >&5
|
||||
(exit $ac_status); }; }; then
|
||||
|
||||
echo "$as_me:$LINENO: result: yes" >&5
|
||||
echo "${ECHO_T}yes" >&6
|
||||
|
||||
cat >>confdefs.h <<\_ACEOF
|
||||
#define HAVE_UINTPTR_T 1
|
||||
_ACEOF
|
||||
|
||||
|
||||
else
|
||||
echo "$as_me: failed program was:" >&5
|
||||
sed 's/^/| /' conftest.$ac_ext >&5
|
||||
|
||||
echo "$as_me:$LINENO: result: no" >&5
|
||||
echo "${ECHO_T}no" >&6
|
||||
|
||||
|
||||
|
||||
fi
|
||||
|
||||
rm -Rf build
|
||||
|
||||
@ -3,7 +3,6 @@
|
||||
# location. We do not want to be using $includedir for this.
|
||||
# Installation is handled by the custom install-data-local rule.
|
||||
noinst_HEADERS = *.h
|
||||
noinst_HEADERS += asm/*.h
|
||||
noinst_HEADERS += fs/*.h
|
||||
noinst_HEADERS += linux/*.h
|
||||
noinst_HEADERS += rpc/*.h
|
||||
|
||||
@ -184,8 +184,8 @@ target_vendor = @target_vendor@
|
||||
# noinst_HEADERS because they are not installed in the usual include
|
||||
# location. We do not want to be using $includedir for this.
|
||||
# Installation is handled by the custom install-data-local rule.
|
||||
noinst_HEADERS = *.h asm/*.h fs/*.h linux/*.h rpc/*.h sharefs/*.h \
|
||||
sys/fm/*.h sys/fs/*.h sys/sysevent/*.h sys/*.h util/*.h vm/*.h
|
||||
noinst_HEADERS = *.h fs/*.h linux/*.h rpc/*.h sharefs/*.h sys/fm/*.h \
|
||||
sys/fs/*.h sys/sysevent/*.h sys/*.h util/*.h vm/*.h
|
||||
all: all-am
|
||||
|
||||
.SUFFIXES:
|
||||
@ -278,7 +278,7 @@ distclean-tags:
|
||||
-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
|
||||
|
||||
distdir: $(DISTFILES)
|
||||
$(mkdir_p) $(distdir)/asm $(distdir)/fs $(distdir)/linux $(distdir)/rpc $(distdir)/sharefs $(distdir)/sys $(distdir)/sys/fm $(distdir)/sys/fs $(distdir)/sys/sysevent $(distdir)/util $(distdir)/vm
|
||||
$(mkdir_p) $(distdir)/fs $(distdir)/linux $(distdir)/rpc $(distdir)/sharefs $(distdir)/sys $(distdir)/sys/fm $(distdir)/sys/fs $(distdir)/sys/sysevent $(distdir)/util $(distdir)/vm
|
||||
@srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
|
||||
topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
|
||||
list='$(DISTFILES)'; for file in $$list; do \
|
||||
|
||||
@ -1,414 +0,0 @@
|
||||
# Makefile.in generated by automake 1.9.6 from Makefile.am.
|
||||
# @configure_input@
|
||||
|
||||
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
|
||||
# 2003, 2004, 2005 Free Software Foundation, Inc.
|
||||
# This Makefile.in is free software; the Free Software Foundation
|
||||
# gives unlimited permission to copy and/or distribute it,
|
||||
# with or without modifications, as long as this notice is preserved.
|
||||
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
|
||||
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
|
||||
# PARTICULAR PURPOSE.
|
||||
|
||||
@SET_MAKE@
|
||||
|
||||
srcdir = @srcdir@
|
||||
top_srcdir = @top_srcdir@
|
||||
VPATH = @srcdir@
|
||||
pkgdatadir = $(datadir)/@PACKAGE@
|
||||
pkglibdir = $(libdir)/@PACKAGE@
|
||||
pkgincludedir = $(includedir)/@PACKAGE@
|
||||
top_builddir = ../..
|
||||
am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
|
||||
INSTALL = @INSTALL@
|
||||
install_sh_DATA = $(install_sh) -c -m 644
|
||||
install_sh_PROGRAM = $(install_sh) -c
|
||||
install_sh_SCRIPT = $(install_sh) -c
|
||||
INSTALL_HEADER = $(INSTALL_DATA)
|
||||
transform = $(program_transform_name)
|
||||
NORMAL_INSTALL = :
|
||||
PRE_INSTALL = :
|
||||
POST_INSTALL = :
|
||||
NORMAL_UNINSTALL = :
|
||||
PRE_UNINSTALL = :
|
||||
POST_UNINSTALL = :
|
||||
build_triplet = @build@
|
||||
host_triplet = @host@
|
||||
target_triplet = @target@
|
||||
subdir = include/asm
|
||||
DIST_COMMON = $(nobase_include_HEADERS) $(srcdir)/Makefile.am \
|
||||
$(srcdir)/Makefile.in
|
||||
ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
|
||||
am__aclocal_m4_deps = $(top_srcdir)/config/spl-build.m4 \
|
||||
$(top_srcdir)/config/spl-meta.m4 $(top_srcdir)/configure.ac
|
||||
am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
|
||||
$(ACLOCAL_M4)
|
||||
mkinstalldirs = $(install_sh) -d
|
||||
CONFIG_HEADER = $(top_builddir)/spl_config.h
|
||||
CONFIG_CLEAN_FILES =
|
||||
SOURCES =
|
||||
DIST_SOURCES =
|
||||
am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
|
||||
am__vpath_adj = case $$p in \
|
||||
$(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
|
||||
*) f=$$p;; \
|
||||
esac;
|
||||
am__strip_dir = `echo $$p | sed -e 's|^.*/||'`;
|
||||
am__installdirs = "$(DESTDIR)$(includedir)"
|
||||
nobase_includeHEADERS_INSTALL = $(install_sh_DATA)
|
||||
HEADERS = $(nobase_include_HEADERS)
|
||||
ETAGS = etags
|
||||
CTAGS = ctags
|
||||
DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
|
||||
ACLOCAL = @ACLOCAL@
|
||||
AMDEP_FALSE = @AMDEP_FALSE@
|
||||
AMDEP_TRUE = @AMDEP_TRUE@
|
||||
AMTAR = @AMTAR@
|
||||
AR = @AR@
|
||||
AUTOCONF = @AUTOCONF@
|
||||
AUTOHEADER = @AUTOHEADER@
|
||||
AUTOMAKE = @AUTOMAKE@
|
||||
AWK = @AWK@
|
||||
CC = @CC@
|
||||
CCDEPMODE = @CCDEPMODE@
|
||||
CFLAGS = @CFLAGS@
|
||||
CPP = @CPP@
|
||||
CPPFLAGS = @CPPFLAGS@
|
||||
CXX = @CXX@
|
||||
CXXCPP = @CXXCPP@
|
||||
CXXDEPMODE = @CXXDEPMODE@
|
||||
CXXFLAGS = @CXXFLAGS@
|
||||
CYGPATH_W = @CYGPATH_W@
|
||||
DEFS = @DEFS@
|
||||
DEPDIR = @DEPDIR@
|
||||
ECHO = @ECHO@
|
||||
ECHO_C = @ECHO_C@
|
||||
ECHO_N = @ECHO_N@
|
||||
ECHO_T = @ECHO_T@
|
||||
EGREP = @EGREP@
|
||||
EXEEXT = @EXEEXT@
|
||||
F77 = @F77@
|
||||
FFLAGS = @FFLAGS@
|
||||
INSTALL_DATA = @INSTALL_DATA@
|
||||
INSTALL_PROGRAM = @INSTALL_PROGRAM@
|
||||
INSTALL_SCRIPT = @INSTALL_SCRIPT@
|
||||
INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
|
||||
KERNELCFLAGS = @KERNELCFLAGS@
|
||||
KERNELCPPFLAGS = @KERNELCPPFLAGS@
|
||||
KERNELMAKE_PARAMS = @KERNELMAKE_PARAMS@
|
||||
LDFLAGS = @LDFLAGS@
|
||||
LIBOBJS = @LIBOBJS@
|
||||
LIBS = @LIBS@
|
||||
LIBTOOL = @LIBTOOL@
|
||||
LINUX = @LINUX@
|
||||
LINUX_OBJ = @LINUX_OBJ@
|
||||
LINUX_VERSION = @LINUX_VERSION@
|
||||
LN_S = @LN_S@
|
||||
LTLIBOBJS = @LTLIBOBJS@
|
||||
MAINT = @MAINT@
|
||||
MAINTAINER_MODE_FALSE = @MAINTAINER_MODE_FALSE@
|
||||
MAINTAINER_MODE_TRUE = @MAINTAINER_MODE_TRUE@
|
||||
MAKEINFO = @MAKEINFO@
|
||||
OBJEXT = @OBJEXT@
|
||||
PACKAGE = @PACKAGE@
|
||||
PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
|
||||
PACKAGE_NAME = @PACKAGE_NAME@
|
||||
PACKAGE_STRING = @PACKAGE_STRING@
|
||||
PACKAGE_TARNAME = @PACKAGE_TARNAME@
|
||||
PACKAGE_VERSION = @PACKAGE_VERSION@
|
||||
PATH_SEPARATOR = @PATH_SEPARATOR@
|
||||
RANLIB = @RANLIB@
|
||||
SED = @SED@
|
||||
SET_MAKE = @SET_MAKE@
|
||||
SHELL = @SHELL@
|
||||
SPL_META_ALIAS = @SPL_META_ALIAS@
|
||||
SPL_META_AUTHOR = @SPL_META_AUTHOR@
|
||||
SPL_META_DATA = @SPL_META_DATA@
|
||||
SPL_META_LT_AGE = @SPL_META_LT_AGE@
|
||||
SPL_META_LT_CURRENT = @SPL_META_LT_CURRENT@
|
||||
SPL_META_LT_REVISION = @SPL_META_LT_REVISION@
|
||||
SPL_META_NAME = @SPL_META_NAME@
|
||||
SPL_META_RELEASE = @SPL_META_RELEASE@
|
||||
SPL_META_VERSION = @SPL_META_VERSION@
|
||||
STRIP = @STRIP@
|
||||
VERSION = @VERSION@
|
||||
ac_ct_AR = @ac_ct_AR@
|
||||
ac_ct_CC = @ac_ct_CC@
|
||||
ac_ct_CXX = @ac_ct_CXX@
|
||||
ac_ct_F77 = @ac_ct_F77@
|
||||
ac_ct_RANLIB = @ac_ct_RANLIB@
|
||||
ac_ct_STRIP = @ac_ct_STRIP@
|
||||
am__fastdepCC_FALSE = @am__fastdepCC_FALSE@
|
||||
am__fastdepCC_TRUE = @am__fastdepCC_TRUE@
|
||||
am__fastdepCXX_FALSE = @am__fastdepCXX_FALSE@
|
||||
am__fastdepCXX_TRUE = @am__fastdepCXX_TRUE@
|
||||
am__include = @am__include@
|
||||
am__leading_dot = @am__leading_dot@
|
||||
am__quote = @am__quote@
|
||||
am__tar = @am__tar@
|
||||
am__untar = @am__untar@
|
||||
bindir = @bindir@
|
||||
build = @build@
|
||||
build_alias = @build_alias@
|
||||
build_cpu = @build_cpu@
|
||||
build_os = @build_os@
|
||||
build_vendor = @build_vendor@
|
||||
datadir = @datadir@
|
||||
exec_prefix = @exec_prefix@
|
||||
host = @host@
|
||||
host_alias = @host_alias@
|
||||
host_cpu = @host_cpu@
|
||||
host_os = @host_os@
|
||||
host_vendor = @host_vendor@
|
||||
includedir = @includedir@
|
||||
infodir = @infodir@
|
||||
install_sh = @install_sh@
|
||||
libdir = @libdir@
|
||||
libexecdir = @libexecdir@
|
||||
localstatedir = @localstatedir@
|
||||
mandir = @mandir@
|
||||
mkdir_p = @mkdir_p@
|
||||
oldincludedir = @oldincludedir@
|
||||
prefix = @prefix@
|
||||
program_transform_name = @program_transform_name@
|
||||
sbindir = @sbindir@
|
||||
sharedstatedir = @sharedstatedir@
|
||||
sysconfdir = @sysconfdir@
|
||||
target = @target@
|
||||
target_alias = @target_alias@
|
||||
target_cpu = @target_cpu@
|
||||
target_os = @target_os@
|
||||
target_vendor = @target_vendor@
|
||||
nobase_include_HEADERS = *.h
|
||||
all: all-am
|
||||
|
||||
.SUFFIXES:
|
||||
$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(am__configure_deps)
|
||||
@for dep in $?; do \
|
||||
case '$(am__configure_deps)' in \
|
||||
*$$dep*) \
|
||||
cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh \
|
||||
&& exit 0; \
|
||||
exit 1;; \
|
||||
esac; \
|
||||
done; \
|
||||
echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu include/asm/Makefile'; \
|
||||
cd $(top_srcdir) && \
|
||||
$(AUTOMAKE) --gnu include/asm/Makefile
|
||||
.PRECIOUS: Makefile
|
||||
Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
|
||||
@case '$?' in \
|
||||
*config.status*) \
|
||||
cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
|
||||
*) \
|
||||
echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
|
||||
cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
|
||||
esac;
|
||||
|
||||
$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
|
||||
cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
|
||||
|
||||
$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
|
||||
cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
|
||||
$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
|
||||
cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
|
||||
|
||||
mostlyclean-libtool:
|
||||
-rm -f *.lo
|
||||
|
||||
clean-libtool:
|
||||
-rm -rf .libs _libs
|
||||
|
||||
distclean-libtool:
|
||||
-rm -f libtool
|
||||
uninstall-info-am:
|
||||
install-nobase_includeHEADERS: $(nobase_include_HEADERS)
|
||||
@$(NORMAL_INSTALL)
|
||||
test -z "$(includedir)" || $(mkdir_p) "$(DESTDIR)$(includedir)"
|
||||
@$(am__vpath_adj_setup) \
|
||||
list='$(nobase_include_HEADERS)'; for p in $$list; do \
|
||||
if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
|
||||
$(am__vpath_adj) \
|
||||
echo " $(nobase_includeHEADERS_INSTALL) '$$d$$p' '$(DESTDIR)$(includedir)/$$f'"; \
|
||||
$(nobase_includeHEADERS_INSTALL) "$$d$$p" "$(DESTDIR)$(includedir)/$$f"; \
|
||||
done
|
||||
|
||||
uninstall-nobase_includeHEADERS:
|
||||
@$(NORMAL_UNINSTALL)
|
||||
@$(am__vpath_adj_setup) \
|
||||
list='$(nobase_include_HEADERS)'; for p in $$list; do \
|
||||
$(am__vpath_adj) \
|
||||
echo " rm -f '$(DESTDIR)$(includedir)/$$f'"; \
|
||||
rm -f "$(DESTDIR)$(includedir)/$$f"; \
|
||||
done
|
||||
|
||||
ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
|
||||
list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
|
||||
unique=`for i in $$list; do \
|
||||
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
|
||||
done | \
|
||||
$(AWK) ' { files[$$0] = 1; } \
|
||||
END { for (i in files) print i; }'`; \
|
||||
mkid -fID $$unique
|
||||
tags: TAGS
|
||||
|
||||
TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
|
||||
$(TAGS_FILES) $(LISP)
|
||||
tags=; \
|
||||
here=`pwd`; \
|
||||
list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
|
||||
unique=`for i in $$list; do \
|
||||
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
|
||||
done | \
|
||||
$(AWK) ' { files[$$0] = 1; } \
|
||||
END { for (i in files) print i; }'`; \
|
||||
if test -z "$(ETAGS_ARGS)$$tags$$unique"; then :; else \
|
||||
test -n "$$unique" || unique=$$empty_fix; \
|
||||
$(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
|
||||
$$tags $$unique; \
|
||||
fi
|
||||
ctags: CTAGS
|
||||
CTAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) \
|
||||
$(TAGS_FILES) $(LISP)
|
||||
tags=; \
|
||||
here=`pwd`; \
|
||||
list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
|
||||
unique=`for i in $$list; do \
|
||||
if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
|
||||
done | \
|
||||
$(AWK) ' { files[$$0] = 1; } \
|
||||
END { for (i in files) print i; }'`; \
|
||||
test -z "$(CTAGS_ARGS)$$tags$$unique" \
|
||||
|| $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
|
||||
$$tags $$unique
|
||||
|
||||
GTAGS:
|
||||
here=`$(am__cd) $(top_builddir) && pwd` \
|
||||
&& cd $(top_srcdir) \
|
||||
&& gtags -i $(GTAGS_ARGS) $$here
|
||||
|
||||
distclean-tags:
|
||||
-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
|
||||
|
||||
distdir: $(DISTFILES)
|
||||
@srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; \
|
||||
topsrcdirstrip=`echo "$(top_srcdir)" | sed 's|.|.|g'`; \
|
||||
list='$(DISTFILES)'; for file in $$list; do \
|
||||
case $$file in \
|
||||
$(srcdir)/*) file=`echo "$$file" | sed "s|^$$srcdirstrip/||"`;; \
|
||||
$(top_srcdir)/*) file=`echo "$$file" | sed "s|^$$topsrcdirstrip/|$(top_builddir)/|"`;; \
|
||||
esac; \
|
||||
if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
|
||||
dir=`echo "$$file" | sed -e 's,/[^/]*$$,,'`; \
|
||||
if test "$$dir" != "$$file" && test "$$dir" != "."; then \
|
||||
dir="/$$dir"; \
|
||||
$(mkdir_p) "$(distdir)$$dir"; \
|
||||
else \
|
||||
dir=''; \
|
||||
fi; \
|
||||
if test -d $$d/$$file; then \
|
||||
if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
|
||||
cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
|
||||
fi; \
|
||||
cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
|
||||
else \
|
||||
test -f $(distdir)/$$file \
|
||||
|| cp -p $$d/$$file $(distdir)/$$file \
|
||||
|| exit 1; \
|
||||
fi; \
|
||||
done
|
||||
check-am: all-am
|
||||
check: check-am
|
||||
all-am: Makefile $(HEADERS)
|
||||
installdirs:
|
||||
for dir in "$(DESTDIR)$(includedir)"; do \
|
||||
test -z "$$dir" || $(mkdir_p) "$$dir"; \
|
||||
done
|
||||
install: install-am
|
||||
install-exec: install-exec-am
|
||||
install-data: install-data-am
|
||||
uninstall: uninstall-am
|
||||
|
||||
install-am: all-am
|
||||
@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
|
||||
|
||||
installcheck: installcheck-am
|
||||
install-strip:
|
||||
$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
|
||||
install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
|
||||
`test -z '$(STRIP)' || \
|
||||
echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
|
||||
mostlyclean-generic:
|
||||
|
||||
clean-generic:
|
||||
|
||||
distclean-generic:
|
||||
-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
|
||||
|
||||
maintainer-clean-generic:
|
||||
@echo "This command is intended for maintainers to use"
|
||||
@echo "it deletes files that may require special tools to rebuild."
|
||||
clean: clean-am
|
||||
|
||||
clean-am: clean-generic clean-libtool mostlyclean-am
|
||||
|
||||
distclean: distclean-am
|
||||
-rm -f Makefile
|
||||
distclean-am: clean-am distclean-generic distclean-libtool \
|
||||
distclean-tags
|
||||
|
||||
dvi: dvi-am
|
||||
|
||||
dvi-am:
|
||||
|
||||
html: html-am
|
||||
|
||||
info: info-am
|
||||
|
||||
info-am:
|
||||
|
||||
install-data-am: install-nobase_includeHEADERS
|
||||
|
||||
install-exec-am:
|
||||
|
||||
install-info: install-info-am
|
||||
|
||||
install-man:
|
||||
|
||||
installcheck-am:
|
||||
|
||||
maintainer-clean: maintainer-clean-am
|
||||
-rm -f Makefile
|
||||
maintainer-clean-am: distclean-am maintainer-clean-generic
|
||||
|
||||
mostlyclean: mostlyclean-am
|
||||
|
||||
mostlyclean-am: mostlyclean-generic mostlyclean-libtool
|
||||
|
||||
pdf: pdf-am
|
||||
|
||||
pdf-am:
|
||||
|
||||
ps: ps-am
|
||||
|
||||
ps-am:
|
||||
|
||||
uninstall-am: uninstall-info-am uninstall-nobase_includeHEADERS
|
||||
|
||||
.PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
|
||||
clean-libtool ctags distclean distclean-generic \
|
||||
distclean-libtool distclean-tags distdir dvi dvi-am html \
|
||||
html-am info info-am install install-am install-data \
|
||||
install-data-am install-exec install-exec-am install-info \
|
||||
install-info-am install-man install-nobase_includeHEADERS \
|
||||
install-strip installcheck installcheck-am installdirs \
|
||||
maintainer-clean maintainer-clean-generic mostlyclean \
|
||||
mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
|
||||
tags uninstall uninstall-am uninstall-info-am \
|
||||
uninstall-nobase_includeHEADERS
|
||||
|
||||
# Tell versions [3.59,3.63) of GNU make to not export all variables.
|
||||
# Otherwise a system limit (for SysV at least) may be exceeded.
|
||||
.NOEXPORT:
|
||||
@ -1,99 +0,0 @@
|
||||
#ifndef _SPL_ATOMIC_COMPAT_H
|
||||
#define _SPL_ATOMIC_COMPAT_H
|
||||
|
||||
#include <asm/atomic.h>
|
||||
#include <spl_config.h>
|
||||
|
||||
#ifndef HAVE_ATOMIC64_T
|
||||
#include <linux/spinlock.h>
|
||||
|
||||
typedef struct {
|
||||
spinlock_t lock;
|
||||
__s64 val;
|
||||
} atomic64_t;
|
||||
|
||||
#define ATOMIC64_INIT(i) { .lock = SPIN_LOCK_UNLOCKED, .val = (i) }
|
||||
|
||||
static inline void atomic64_add(__s64 i, atomic64_t *v)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&v->lock, flags);
|
||||
v->val += i;
|
||||
spin_unlock_irqrestore(&v->lock, flags);
|
||||
}
|
||||
|
||||
static inline void atomic64_sub(__s64 i, atomic64_t *v)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&v->lock, flags);
|
||||
v->val -= i;
|
||||
spin_unlock_irqrestore(&v->lock, flags);
|
||||
}
|
||||
|
||||
#define atomic64_inc(v) (atomic64_add(1, (v)))
|
||||
#define atomic64_dec(v) (atomic64_sub(1, (v)))
|
||||
|
||||
static inline __s64 atomic64_add_return(__s64 i, atomic64_t *v)
|
||||
{
|
||||
unsigned long flags;
|
||||
__s64 ret;
|
||||
|
||||
spin_lock_irqsave(&v->lock, flags);
|
||||
v->val += i;
|
||||
ret = v->val;
|
||||
spin_unlock_irqrestore(&v->lock, flags);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static inline __s64 atomic64_sub_return(__s64 i, atomic64_t *v)
|
||||
{
|
||||
unsigned long flags;
|
||||
__s64 ret;
|
||||
|
||||
spin_lock_irqsave(&v->lock, flags);
|
||||
v->val -= i;
|
||||
ret = v->val;
|
||||
spin_unlock_irqrestore(&v->lock, flags);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
#define atomic64_inc_return(v) (atomic64_add_return(1, (v)))
|
||||
#define atomic64_dec_return(v) (atomic64_sub_return(1, (v)))
|
||||
|
||||
static inline __s64 atomic64_read(atomic64_t *v)
|
||||
{
|
||||
unsigned long flags;
|
||||
__s64 r;
|
||||
|
||||
spin_lock_irqsave(&v->lock, flags);
|
||||
r = v->val;
|
||||
spin_unlock_irqrestore(&v->lock, flags);
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
static inline void atomic64_set(atomic64_t *v, __s64 i)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&v->lock, flags);
|
||||
v->val = i;
|
||||
spin_unlock_irqrestore(&v->lock, flags);
|
||||
}
|
||||
|
||||
#endif /* HAVE_ATOMIC64_T */
|
||||
|
||||
#ifndef HAVE_ATOMIC64_CMPXCHG
|
||||
#define atomic64_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
|
||||
#endif
|
||||
|
||||
#ifndef HAVE_ATOMIC64_XCHG
|
||||
#define atomic64_xchg(v, n) (xchg(&((v)->counter), n))
|
||||
#endif
|
||||
|
||||
#endif /* _SPL_ATOMIC_COMPAT_H */
|
||||
|
||||
@ -30,7 +30,14 @@
|
||||
#include <linux/module.h>
|
||||
#include <linux/spinlock.h>
|
||||
#include <sys/types.h>
|
||||
#include <asm/atomic_compat.h>
|
||||
|
||||
#ifndef HAVE_ATOMIC64_CMPXCHG
|
||||
#define atomic64_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
|
||||
#endif
|
||||
|
||||
#ifndef HAVE_ATOMIC64_XCHG
|
||||
#define atomic64_xchg(v, n) (xchg(&((v)->counter), n))
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Two approaches to atomic operations are implemented each with its
|
||||
|
||||
@ -41,7 +41,7 @@ extern "C" {
|
||||
#include <linux/rwsem.h>
|
||||
#include <linux/hash.h>
|
||||
#include <linux/ctype.h>
|
||||
#include <asm/atomic_compat.h>
|
||||
#include <asm/atomic.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/debug.h>
|
||||
#include <sys/vmsystm.h>
|
||||
@ -109,12 +109,40 @@ kmalloc_node_nofail(size_t size, gfp_t flags, int node)
|
||||
#endif /* HAVE_KMALLOC_NODE */
|
||||
|
||||
#ifdef DEBUG_KMEM
|
||||
# ifdef HAVE_ATOMIC64_T
|
||||
|
||||
extern atomic64_t kmem_alloc_used;
|
||||
extern unsigned long long kmem_alloc_max;
|
||||
extern atomic64_t vmem_alloc_used;
|
||||
extern unsigned long long vmem_alloc_max;
|
||||
|
||||
# define kmem_alloc_used_add(size) atomic64_add(size, &kmem_alloc_used)
|
||||
# define kmem_alloc_used_sub(size) atomic64_sub(size, &kmem_alloc_used)
|
||||
# define kmem_alloc_used_read() atomic64_read(&kmem_alloc_used)
|
||||
# define kmem_alloc_used_set(size) atomic64_set(&kmem_alloc_used, size)
|
||||
# define vmem_alloc_used_add(size) atomic64_add(size, &vmem_alloc_used)
|
||||
# define vmem_alloc_used_sub(size) atomic64_sub(size, &vmem_alloc_used)
|
||||
# define vmem_alloc_used_read() atomic64_read(&vmem_alloc_used)
|
||||
# define vmem_alloc_used_set(size) atomic64_set(&vmem_alloc_used, size)
|
||||
|
||||
# else
|
||||
|
||||
extern atomic_t kmem_alloc_used;
|
||||
extern unsigned long long kmem_alloc_max;
|
||||
extern atomic_t vmem_alloc_used;
|
||||
extern unsigned long long vmem_alloc_max;
|
||||
|
||||
# define kmem_alloc_used_add(size) atomic_add(size, &kmem_alloc_used)
|
||||
# define kmem_alloc_used_sub(size) atomic_sub(size, &kmem_alloc_used)
|
||||
# define kmem_alloc_used_read() atomic_read(&kmem_alloc_used)
|
||||
# define kmem_alloc_used_set(size) atomic_set(&kmem_alloc_used, size)
|
||||
# define vmem_alloc_used_add(size) atomic_add(size, &vmem_alloc_used)
|
||||
# define vmem_alloc_used_sub(size) atomic_sub(size, &vmem_alloc_used)
|
||||
# define vmem_alloc_used_read() atomic_read(&vmem_alloc_used)
|
||||
# define vmem_alloc_used_set(size) atomic_set(&vmem_alloc_used, size)
|
||||
|
||||
# endif /* _LP64 */
|
||||
|
||||
# define kmem_alloc(size, flags) __kmem_alloc((size), (flags), 0, 0)
|
||||
# define kmem_zalloc(size, flags) __kmem_alloc((size), ((flags) | \
|
||||
__GFP_ZERO), 0, 0)
|
||||
|
||||
@ -215,11 +215,19 @@ EXPORT_SYMBOL(vmem_size);
|
||||
* report any memory leaked when the module is unloaded.
|
||||
*/
|
||||
#ifdef DEBUG_KMEM
|
||||
|
||||
/* Shim layer memory accounting */
|
||||
# ifdef HAVE_ATOMIC64_T
|
||||
atomic64_t kmem_alloc_used = ATOMIC64_INIT(0);
|
||||
unsigned long long kmem_alloc_max = 0;
|
||||
atomic64_t vmem_alloc_used = ATOMIC64_INIT(0);
|
||||
unsigned long long vmem_alloc_max = 0;
|
||||
# else
|
||||
atomic_t kmem_alloc_used = ATOMIC_INIT(0);
|
||||
unsigned long long kmem_alloc_max = 0;
|
||||
atomic_t vmem_alloc_used = ATOMIC_INIT(0);
|
||||
unsigned long long vmem_alloc_max = 0;
|
||||
# endif /* _LP64 */
|
||||
int kmem_warning_flag = 1;
|
||||
|
||||
EXPORT_SYMBOL(kmem_alloc_used);
|
||||
@ -392,7 +400,7 @@ kmem_alloc_track(size_t size, int flags, const char *func, int line,
|
||||
if (unlikely((size) > (PAGE_SIZE * 2)) && kmem_warning_flag)
|
||||
CWARN("Large kmem_alloc(%llu, 0x%x) (%lld/%llu)\n",
|
||||
(unsigned long long) size, flags,
|
||||
atomic64_read(&kmem_alloc_used), kmem_alloc_max);
|
||||
kmem_alloc_used_read(), kmem_alloc_max);
|
||||
|
||||
/* We use kstrdup() below because the string pointed to by
|
||||
* __FUNCTION__ might not be available by the time we want
|
||||
@ -402,7 +410,7 @@ kmem_alloc_track(size_t size, int flags, const char *func, int line,
|
||||
kfree(dptr);
|
||||
CWARN("kstrdup() failed in kmem_alloc(%llu, 0x%x) "
|
||||
"(%lld/%llu)\n", (unsigned long long) size, flags,
|
||||
atomic64_read(&kmem_alloc_used), kmem_alloc_max);
|
||||
kmem_alloc_used_read(), kmem_alloc_max);
|
||||
goto out;
|
||||
}
|
||||
|
||||
@ -421,15 +429,13 @@ kmem_alloc_track(size_t size, int flags, const char *func, int line,
|
||||
kfree(dptr);
|
||||
CWARN("kmem_alloc(%llu, 0x%x) failed (%lld/%llu)\n",
|
||||
(unsigned long long) size, flags,
|
||||
atomic64_read(&kmem_alloc_used), kmem_alloc_max);
|
||||
kmem_alloc_used_read(), kmem_alloc_max);
|
||||
goto out;
|
||||
}
|
||||
|
||||
atomic64_add(size, &kmem_alloc_used);
|
||||
if (unlikely(atomic64_read(&kmem_alloc_used) >
|
||||
kmem_alloc_max))
|
||||
kmem_alloc_max =
|
||||
atomic64_read(&kmem_alloc_used);
|
||||
kmem_alloc_used_add(size);
|
||||
if (unlikely(kmem_alloc_used_read() > kmem_alloc_max))
|
||||
kmem_alloc_max = kmem_alloc_used_read();
|
||||
|
||||
INIT_HLIST_NODE(&dptr->kd_hlist);
|
||||
INIT_LIST_HEAD(&dptr->kd_list);
|
||||
@ -446,7 +452,7 @@ kmem_alloc_track(size_t size, int flags, const char *func, int line,
|
||||
|
||||
CDEBUG_LIMIT(D_INFO, "kmem_alloc(%llu, 0x%x) = %p "
|
||||
"(%lld/%llu)\n", (unsigned long long) size, flags,
|
||||
ptr, atomic64_read(&kmem_alloc_used),
|
||||
ptr, kmem_alloc_used_read(),
|
||||
kmem_alloc_max);
|
||||
}
|
||||
out:
|
||||
@ -472,10 +478,9 @@ kmem_free_track(void *ptr, size_t size)
|
||||
"kd_func = %s, kd_line = %d\n", (unsigned long long) dptr->kd_size,
|
||||
(unsigned long long) size, dptr->kd_func, dptr->kd_line);
|
||||
|
||||
atomic64_sub(size, &kmem_alloc_used);
|
||||
|
||||
kmem_alloc_used_sub(size);
|
||||
CDEBUG_LIMIT(D_INFO, "kmem_free(%p, %llu) (%lld/%llu)\n", ptr,
|
||||
(unsigned long long) size, atomic64_read(&kmem_alloc_used),
|
||||
(unsigned long long) size, kmem_alloc_used_read(),
|
||||
kmem_alloc_max);
|
||||
|
||||
kfree(dptr->kd_func);
|
||||
@ -513,7 +518,7 @@ vmem_alloc_track(size_t size, int flags, const char *func, int line)
|
||||
kfree(dptr);
|
||||
CWARN("kstrdup() failed in vmem_alloc(%llu, 0x%x) "
|
||||
"(%lld/%llu)\n", (unsigned long long) size, flags,
|
||||
atomic64_read(&vmem_alloc_used), vmem_alloc_max);
|
||||
vmem_alloc_used_read(), vmem_alloc_max);
|
||||
goto out;
|
||||
}
|
||||
|
||||
@ -525,18 +530,16 @@ vmem_alloc_track(size_t size, int flags, const char *func, int line)
|
||||
kfree(dptr);
|
||||
CWARN("vmem_alloc(%llu, 0x%x) failed (%lld/%llu)\n",
|
||||
(unsigned long long) size, flags,
|
||||
atomic64_read(&vmem_alloc_used), vmem_alloc_max);
|
||||
vmem_alloc_used_read(), vmem_alloc_max);
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (flags & __GFP_ZERO)
|
||||
memset(ptr, 0, size);
|
||||
|
||||
atomic64_add(size, &vmem_alloc_used);
|
||||
if (unlikely(atomic64_read(&vmem_alloc_used) >
|
||||
vmem_alloc_max))
|
||||
vmem_alloc_max =
|
||||
atomic64_read(&vmem_alloc_used);
|
||||
vmem_alloc_used_add(size);
|
||||
if (unlikely(vmem_alloc_used_read() > vmem_alloc_max))
|
||||
vmem_alloc_max = vmem_alloc_used_read();
|
||||
|
||||
INIT_HLIST_NODE(&dptr->kd_hlist);
|
||||
INIT_LIST_HEAD(&dptr->kd_list);
|
||||
@ -553,7 +556,7 @@ vmem_alloc_track(size_t size, int flags, const char *func, int line)
|
||||
|
||||
CDEBUG_LIMIT(D_INFO, "vmem_alloc(%llu, 0x%x) = %p "
|
||||
"(%lld/%llu)\n", (unsigned long long) size, flags,
|
||||
ptr, atomic64_read(&vmem_alloc_used),
|
||||
ptr, vmem_alloc_used_read(),
|
||||
vmem_alloc_max);
|
||||
}
|
||||
out:
|
||||
@ -578,9 +581,9 @@ vmem_free_track(void *ptr, size_t size)
|
||||
"kd_func = %s, kd_line = %d\n", (unsigned long long) dptr->kd_size,
|
||||
(unsigned long long) size, dptr->kd_func, dptr->kd_line);
|
||||
|
||||
atomic64_sub(size, &vmem_alloc_used);
|
||||
vmem_alloc_used_sub(size);
|
||||
CDEBUG_LIMIT(D_INFO, "vmem_free(%p, %llu) (%lld/%llu)\n", ptr,
|
||||
(unsigned long long) size, atomic64_read(&vmem_alloc_used),
|
||||
(unsigned long long) size, vmem_alloc_used_read(),
|
||||
vmem_alloc_max);
|
||||
|
||||
kfree(dptr->kd_func);
|
||||
@ -609,7 +612,7 @@ kmem_alloc_debug(size_t size, int flags, const char *func, int line,
|
||||
if (unlikely(size > (PAGE_SIZE * 2)) && kmem_warning_flag)
|
||||
CWARN("Large kmem_alloc(%llu, 0x%x) (%lld/%llu)\n",
|
||||
(unsigned long long) size, flags,
|
||||
atomic64_read(&kmem_alloc_used), kmem_alloc_max);
|
||||
kmem_alloc_used_read(), kmem_alloc_max);
|
||||
|
||||
/* Use the correct allocator */
|
||||
if (node_alloc) {
|
||||
@ -624,15 +627,15 @@ kmem_alloc_debug(size_t size, int flags, const char *func, int line,
|
||||
if (ptr == NULL) {
|
||||
CWARN("kmem_alloc(%llu, 0x%x) failed (%lld/%llu)\n",
|
||||
(unsigned long long) size, flags,
|
||||
atomic64_read(&kmem_alloc_used), kmem_alloc_max);
|
||||
kmem_alloc_used_read(), kmem_alloc_max);
|
||||
} else {
|
||||
atomic64_add(size, &kmem_alloc_used);
|
||||
if (unlikely(atomic64_read(&kmem_alloc_used) > kmem_alloc_max))
|
||||
kmem_alloc_max = atomic64_read(&kmem_alloc_used);
|
||||
kmem_alloc_used_add(size);
|
||||
if (unlikely(kmem_alloc_used_read() > kmem_alloc_max))
|
||||
kmem_alloc_max = kmem_alloc_used_read();
|
||||
|
||||
CDEBUG_LIMIT(D_INFO, "kmem_alloc(%llu, 0x%x) = %p "
|
||||
"(%lld/%llu)\n", (unsigned long long) size, flags, ptr,
|
||||
atomic64_read(&kmem_alloc_used), kmem_alloc_max);
|
||||
kmem_alloc_used_read(), kmem_alloc_max);
|
||||
}
|
||||
RETURN(ptr);
|
||||
}
|
||||
@ -646,10 +649,9 @@ kmem_free_debug(void *ptr, size_t size)
|
||||
ASSERTF(ptr || size > 0, "ptr: %p, size: %llu", ptr,
|
||||
(unsigned long long) size);
|
||||
|
||||
atomic64_sub(size, &kmem_alloc_used);
|
||||
|
||||
kmem_alloc_used_sub(size);
|
||||
CDEBUG_LIMIT(D_INFO, "kmem_free(%p, %llu) (%lld/%llu)\n", ptr,
|
||||
(unsigned long long) size, atomic64_read(&kmem_alloc_used),
|
||||
(unsigned long long) size, kmem_alloc_used_read(),
|
||||
kmem_alloc_max);
|
||||
|
||||
memset(ptr, 0x5a, size);
|
||||
@ -672,19 +674,18 @@ vmem_alloc_debug(size_t size, int flags, const char *func, int line)
|
||||
if (ptr == NULL) {
|
||||
CWARN("vmem_alloc(%llu, 0x%x) failed (%lld/%llu)\n",
|
||||
(unsigned long long) size, flags,
|
||||
atomic64_read(&vmem_alloc_used), vmem_alloc_max);
|
||||
vmem_alloc_used_read(), vmem_alloc_max);
|
||||
} else {
|
||||
if (flags & __GFP_ZERO)
|
||||
memset(ptr, 0, size);
|
||||
|
||||
atomic64_add(size, &vmem_alloc_used);
|
||||
|
||||
if (unlikely(atomic64_read(&vmem_alloc_used) > vmem_alloc_max))
|
||||
vmem_alloc_max = atomic64_read(&vmem_alloc_used);
|
||||
vmem_alloc_used_add(size);
|
||||
if (unlikely(vmem_alloc_used_read() > vmem_alloc_max))
|
||||
vmem_alloc_max = vmem_alloc_used_read();
|
||||
|
||||
CDEBUG_LIMIT(D_INFO, "vmem_alloc(%llu, 0x%x) = %p "
|
||||
"(%lld/%llu)\n", (unsigned long long) size, flags, ptr,
|
||||
atomic64_read(&vmem_alloc_used), vmem_alloc_max);
|
||||
vmem_alloc_used_read(), vmem_alloc_max);
|
||||
}
|
||||
|
||||
RETURN(ptr);
|
||||
@ -699,10 +700,9 @@ vmem_free_debug(void *ptr, size_t size)
|
||||
ASSERTF(ptr || size > 0, "ptr: %p, size: %llu", ptr,
|
||||
(unsigned long long) size);
|
||||
|
||||
atomic64_sub(size, &vmem_alloc_used);
|
||||
|
||||
vmem_alloc_used_sub(size);
|
||||
CDEBUG_LIMIT(D_INFO, "vmem_free(%p, %llu) (%lld/%llu)\n", ptr,
|
||||
(unsigned long long) size, atomic64_read(&vmem_alloc_used),
|
||||
(unsigned long long) size, vmem_alloc_used_read(),
|
||||
vmem_alloc_max);
|
||||
|
||||
memset(ptr, 0x5a, size);
|
||||
@ -1969,8 +1969,8 @@ spl_kmem_init(void)
|
||||
#endif
|
||||
|
||||
#ifdef DEBUG_KMEM
|
||||
atomic64_set(&kmem_alloc_used, 0);
|
||||
atomic64_set(&vmem_alloc_used, 0);
|
||||
kmem_alloc_used_set(0);
|
||||
vmem_alloc_used_set(0);
|
||||
|
||||
spl_kmem_init_tracking(&kmem_list, &kmem_lock, KMEM_TABLE_SIZE);
|
||||
spl_kmem_init_tracking(&vmem_list, &vmem_lock, VMEM_TABLE_SIZE);
|
||||
@ -1986,14 +1986,14 @@ spl_kmem_fini(void)
|
||||
* allocation size and the first few bytes of what's located
|
||||
* at that address to aid in debugging. Performance is not
|
||||
* a serious concern here since it is module unload time. */
|
||||
if (atomic64_read(&kmem_alloc_used) != 0)
|
||||
if (kmem_alloc_used_read() != 0)
|
||||
CWARN("kmem leaked %ld/%ld bytes\n",
|
||||
atomic64_read(&kmem_alloc_used), kmem_alloc_max);
|
||||
kmem_alloc_used_read(), kmem_alloc_max);
|
||||
|
||||
|
||||
if (atomic64_read(&vmem_alloc_used) != 0)
|
||||
if (vmem_alloc_used_read() != 0)
|
||||
CWARN("vmem leaked %ld/%ld bytes\n",
|
||||
atomic64_read(&vmem_alloc_used), vmem_alloc_max);
|
||||
vmem_alloc_used_read(), vmem_alloc_max);
|
||||
|
||||
spl_kmem_fini_tracking(&kmem_list, &kmem_lock);
|
||||
spl_kmem_fini_tracking(&vmem_list, &vmem_lock);
|
||||
|
||||
@ -409,8 +409,8 @@ proc_console_backoff(struct ctl_table *table, int write, struct file *filp,
|
||||
|
||||
#ifdef DEBUG_KMEM
|
||||
static int
|
||||
proc_doatomic64(struct ctl_table *table, int write, struct file *filp,
|
||||
void __user *buffer, size_t *lenp, loff_t *ppos)
|
||||
proc_domemused(struct ctl_table *table, int write, struct file *filp,
|
||||
void __user *buffer, size_t *lenp, loff_t *ppos)
|
||||
{
|
||||
int rc = 0;
|
||||
unsigned long min = 0, max = ~0, val;
|
||||
@ -425,7 +425,11 @@ proc_doatomic64(struct ctl_table *table, int write, struct file *filp,
|
||||
if (write) {
|
||||
*ppos += *lenp;
|
||||
} else {
|
||||
# ifdef HAVE_ATOMIC64_T
|
||||
val = atomic64_read((atomic64_t *)table->data);
|
||||
# else
|
||||
val = atomic_read((atomic_t *)table->data);
|
||||
# endif /* HAVE_ATOMIC64_T */
|
||||
rc = proc_doulongvec_minmax(&dummy, write, filp,
|
||||
buffer, lenp, ppos);
|
||||
}
|
||||
@ -861,9 +865,13 @@ static struct ctl_table spl_kmem_table[] = {
|
||||
.ctl_name = CTL_KMEM_KMEMUSED,
|
||||
.procname = "kmem_used",
|
||||
.data = &kmem_alloc_used,
|
||||
# ifdef HAVE_ATOMIC64_T
|
||||
.maxlen = sizeof(atomic64_t),
|
||||
# else
|
||||
.maxlen = sizeof(atomic_t),
|
||||
# endif /* HAVE_ATOMIC64_T */
|
||||
.mode = 0444,
|
||||
.proc_handler = &proc_doatomic64,
|
||||
.proc_handler = &proc_domemused,
|
||||
},
|
||||
{
|
||||
.ctl_name = CTL_KMEM_KMEMMAX,
|
||||
@ -879,9 +887,13 @@ static struct ctl_table spl_kmem_table[] = {
|
||||
.ctl_name = CTL_KMEM_VMEMUSED,
|
||||
.procname = "vmem_used",
|
||||
.data = &vmem_alloc_used,
|
||||
# ifdef HAVE_ATOMIC64_T
|
||||
.maxlen = sizeof(atomic64_t),
|
||||
# else
|
||||
.maxlen = sizeof(atomic_t),
|
||||
# endif /* HAVE_ATOMIC64_T */
|
||||
.mode = 0444,
|
||||
.proc_handler = &proc_doatomic64,
|
||||
.proc_handler = &proc_domemused,
|
||||
},
|
||||
{
|
||||
.ctl_name = CTL_KMEM_VMEMMAX,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user