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Linux 6.9 compat: blk_alloc_disk takes 2 args 

Now, it takes queue limits, this is a trivial implementation
with no queue limits, implementing proper queue limits is left as an
exercise to the reader.

Signed-off-by: Ryan Lahfa <ryan@lahfa.xyz>
This commit is contained in:
Ryan Lahfa 2024-06-21 00:54:58 +02:00
parent 08f57a3150
commit 980aca470c
2 changed files with 40 additions and 14 deletions
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50
config/kernel-make-request-fn.m4
View File

@ -50,6 +50,13 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_MAKE_REQUEST_FN], [
disk = blk_alloc_disk(NUMA_NO_NODE);
])
ZFS_LINUX_TEST_SRC([blk_alloc_disk_2args], [
#include <linux/blkdev.h>
],[
struct gendisk *disk __attribute__ ((unused));
disk = blk_alloc_disk(NULL, NUMA_NO_NODE);
])
ZFS_LINUX_TEST_SRC([blk_cleanup_disk], [
#include <linux/blkdev.h>
],[
@ -71,30 +78,45 @@ AC_DEFUN([ZFS_AC_KERNEL_MAKE_REQUEST_FN], [
AC_DEFINE(HAVE_SUBMIT_BIO_IN_BLOCK_DEVICE_OPERATIONS, 1,
[submit_bio is member of struct block_device_operations])
dnl
dnl # Linux 6.9 API change
dnl # blk_alloc_disk() takes 2 arguments:
dnl # a queue limit and NUMA node ID.
dnl #
dnl # Linux 5.14 API Change:
dnl # blk_alloc_queue() + alloc_disk() combo replaced by
dnl # a single call to blk_alloc_disk().
dnl #
AC_MSG_CHECKING([whether blk_alloc_disk() exists])
ZFS_LINUX_TEST_RESULT([blk_alloc_disk], [
AC_MSG_CHECKING([whether blk_alloc_disk() takes 2 args])
ZFS_LINUX_TEST_RESULT([blk_alloc_disk_2args], [
AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_BLK_ALLOC_DISK], 1, [blk_alloc_disk() exists])
AC_DEFINE([HAVE_BLK_ALLOC_DISK_2ARGS], 1, [blk_alloc_disk() takes 2 args])
dnl # put_disk() should be used in 6.9.
], [
AC_MSG_RESULT(no)
dnl #
dnl # 5.20 API change,
dnl # Removed blk_cleanup_disk(), put_disk() should be used.
dnl # Linux 5.14 API Change:
dnl # blk_alloc_queue() + alloc_disk() combo replaced by
dnl # a single call to blk_alloc_disk().
dnl #
AC_MSG_CHECKING([whether blk_cleanup_disk() exists])
ZFS_LINUX_TEST_RESULT([blk_cleanup_disk], [
AC_MSG_CHECKING([whether blk_alloc_disk() exists])
ZFS_LINUX_TEST_RESULT([blk_alloc_disk], [
AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_BLK_CLEANUP_DISK], 1,
[blk_cleanup_disk() exists])
AC_DEFINE([HAVE_BLK_ALLOC_DISK], 1, [blk_alloc_disk() exists])
dnl #
dnl # 5.20 API change,
dnl # Removed blk_cleanup_disk(), put_disk() should be used.
dnl #
AC_MSG_CHECKING([whether blk_cleanup_disk() exists])
ZFS_LINUX_TEST_RESULT([blk_cleanup_disk], [
AC_MSG_RESULT(yes)
AC_DEFINE([HAVE_BLK_CLEANUP_DISK], 1,
[blk_cleanup_disk() exists])
], [
AC_MSG_RESULT(no)
])
], [
AC_MSG_RESULT(no)
])
], [
AC_MSG_RESULT(no)
])
],[
AC_MSG_RESULT(no)

4
module/os/linux/zfs/zvol_os.c
View File

@ -874,7 +874,11 @@ zvol_alloc(dev_t dev, const char *name)
#ifdef HAVE_SUBMIT_BIO_IN_BLOCK_DEVICE_OPERATIONS
#ifdef HAVE_BLK_ALLOC_DISK
#ifdef HAVE_BLK_ALLOC_DISK_2ARGS
zso->zvo_disk = blk_alloc_disk(NULL, NUMA_NO_NODE);
#else
zso->zvo_disk = blk_alloc_disk(NUMA_NO_NODE);
#endif
if (zso->zvo_disk == NULL)
goto out_kmem;