config: remove HAVE_3ARGS_BDI_SETUP_AND_REGISTER

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
This commit is contained in:
Rob Norris 2024-08-04 13:16:42 +10:00 committed by Brian Behlendorf
parent 9f5c9af77c
commit 6a28491f8e
2 changed files with 1 additions and 54 deletions

View File

@ -23,16 +23,6 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_BDI], [
int error __attribute__((unused)) =
bdi_setup_and_register(&bdi, name);
])
ZFS_LINUX_TEST_SRC([bdi_setup_and_register_3args], [
#include <linux/backing-dev.h>
struct backing_dev_info bdi;
], [
char *name = "bdi";
unsigned int cap = BDI_CAP_MAP_COPY;
int error __attribute__((unused)) =
bdi_setup_and_register(&bdi, name, cap);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BDI], [
@ -60,22 +50,7 @@ AC_DEFUN([ZFS_AC_KERNEL_BDI], [
[bdi_setup_and_register() wants 2 args])
], [
AC_MSG_RESULT(no)
dnl #
dnl # 2.6.34 - 3.19, bdi_setup_and_register()
dnl # takes 3 arguments.
dnl #
AC_MSG_CHECKING(
[whether bdi_setup_and_register() wants 3 args])
ZFS_LINUX_TEST_RESULT_SYMBOL(
[bdi_setup_and_register_3args],
[bdi_setup_and_register], [mm/backing-dev.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_3ARGS_BDI_SETUP_AND_REGISTER, 1,
[bdi_setup_and_register() wants 3 args])
], [
ZFS_LINUX_TEST_ERROR([bdi_setup])
])
ZFS_LINUX_TEST_ERROR([bdi_setup])
])
])
])

View File

@ -33,7 +33,6 @@
#include <linux/compat.h>
/*
* 2.6.34 - 3.19, bdi_setup_and_register() takes 3 arguments.
* 4.0 - 4.11, bdi_setup_and_register() takes 2 arguments.
* 4.12 - x.y, super_setup_bdi_name() new interface.
*/
@ -77,33 +76,6 @@ zpl_bdi_destroy(struct super_block *sb)
kmem_free(bdi, sizeof (struct backing_dev_info));
sb->s_bdi = NULL;
}
#elif defined(HAVE_3ARGS_BDI_SETUP_AND_REGISTER)
static inline int
zpl_bdi_setup(struct super_block *sb, char *name)
{
struct backing_dev_info *bdi;
int error;
bdi = kmem_zalloc(sizeof (struct backing_dev_info), KM_SLEEP);
error = bdi_setup_and_register(bdi, name, BDI_CAP_MAP_COPY);
if (error) {
kmem_free(sb->s_bdi, sizeof (struct backing_dev_info));
return (error);
}
sb->s_bdi = bdi;
return (0);
}
static inline void
zpl_bdi_destroy(struct super_block *sb)
{
struct backing_dev_info *bdi = sb->s_bdi;
bdi_destroy(bdi);
kmem_free(bdi, sizeof (struct backing_dev_info));
sb->s_bdi = NULL;
}
#else
#error "Unsupported kernel"
#endif