mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-17 01:51:00 +03:00
0807423369
Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #16479
132 lines
3.6 KiB
Plaintext
132 lines
3.6 KiB
Plaintext
dnl #
|
|
dnl # 3.1 API change
|
|
dnl # The super_block structure now stores a per-filesystem shrinker.
|
|
dnl # This interface is preferable because it can be used to specifically
|
|
dnl # target only the zfs filesystem for pruning.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_SUPER_BLOCK_S_SHRINK], [
|
|
ZFS_LINUX_TEST_SRC([super_block_s_shrink], [
|
|
#include <linux/fs.h>
|
|
|
|
static const struct super_block
|
|
sb __attribute__ ((unused)) = {
|
|
.s_shrink.seeks = DEFAULT_SEEKS,
|
|
.s_shrink.batch = 0,
|
|
};
|
|
],[])
|
|
])
|
|
|
|
dnl #
|
|
dnl # 6.7 API change
|
|
dnl # s_shrink is now a pointer.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_SUPER_BLOCK_S_SHRINK_PTR], [
|
|
ZFS_LINUX_TEST_SRC([super_block_s_shrink_ptr], [
|
|
#include <linux/fs.h>
|
|
static unsigned long shrinker_cb(struct shrinker *shrink,
|
|
struct shrink_control *sc) { return 0; }
|
|
static struct shrinker shrinker = {
|
|
.count_objects = shrinker_cb,
|
|
.scan_objects = shrinker_cb,
|
|
.seeks = DEFAULT_SEEKS,
|
|
};
|
|
static const struct super_block
|
|
sb __attribute__ ((unused)) = {
|
|
.s_shrink = &shrinker,
|
|
};
|
|
],[])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_SUPER_BLOCK_S_SHRINK], [
|
|
AC_MSG_CHECKING([whether super_block has s_shrink])
|
|
ZFS_LINUX_TEST_RESULT([super_block_s_shrink], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_SUPER_BLOCK_S_SHRINK, 1,
|
|
[have super_block s_shrink])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
AC_MSG_CHECKING([whether super_block has s_shrink pointer])
|
|
ZFS_LINUX_TEST_RESULT([super_block_s_shrink_ptr], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_SUPER_BLOCK_S_SHRINK_PTR, 1,
|
|
[have super_block s_shrink pointer])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
ZFS_LINUX_TEST_ERROR([sb->s_shrink()])
|
|
])
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # 6.0 API change
|
|
dnl # register_shrinker() becomes a var-arg function that takes
|
|
dnl # a printf-style format string as args > 0
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_REGISTER_SHRINKER_VARARG], [
|
|
ZFS_LINUX_TEST_SRC([register_shrinker_vararg], [
|
|
#include <linux/mm.h>
|
|
static unsigned long shrinker_cb(struct shrinker *shrink,
|
|
struct shrink_control *sc) { return 0; }
|
|
],[
|
|
struct shrinker cache_shrinker = {
|
|
.count_objects = shrinker_cb,
|
|
.scan_objects = shrinker_cb,
|
|
.seeks = DEFAULT_SEEKS,
|
|
};
|
|
register_shrinker(&cache_shrinker, "vararg-reg-shrink-test");
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_REGISTER_SHRINKER_VARARG],[
|
|
AC_MSG_CHECKING([whether new var-arg register_shrinker() exists])
|
|
ZFS_LINUX_TEST_RESULT([register_shrinker_vararg], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_REGISTER_SHRINKER_VARARG, 1,
|
|
[register_shrinker is vararg])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
dnl #
|
|
dnl # 6.7 API change
|
|
dnl # register_shrinker has been replaced by shrinker_register.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_SHRINKER_REGISTER], [
|
|
ZFS_LINUX_TEST_SRC([shrinker_register], [
|
|
#include <linux/shrinker.h>
|
|
static unsigned long shrinker_cb(struct shrinker *shrink,
|
|
struct shrink_control *sc) { return 0; }
|
|
],[
|
|
struct shrinker cache_shrinker = {
|
|
.count_objects = shrinker_cb,
|
|
.scan_objects = shrinker_cb,
|
|
.seeks = DEFAULT_SEEKS,
|
|
};
|
|
shrinker_register(&cache_shrinker);
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_SHRINKER_REGISTER], [
|
|
AC_MSG_CHECKING([whether shrinker_register() exists])
|
|
ZFS_LINUX_TEST_RESULT([shrinker_register], [
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_SHRINKER_REGISTER, 1, [shrinker_register exists])
|
|
], [
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_SHRINKER], [
|
|
ZFS_AC_KERNEL_SRC_SUPER_BLOCK_S_SHRINK
|
|
ZFS_AC_KERNEL_SRC_SUPER_BLOCK_S_SHRINK_PTR
|
|
ZFS_AC_KERNEL_SRC_REGISTER_SHRINKER_VARARG
|
|
ZFS_AC_KERNEL_SRC_SHRINKER_REGISTER
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_SHRINKER], [
|
|
ZFS_AC_KERNEL_SUPER_BLOCK_S_SHRINK
|
|
ZFS_AC_KERNEL_REGISTER_SHRINKER_VARARG
|
|
ZFS_AC_KERNEL_SHRINKER_REGISTER
|
|
])
|