From 3bd7cd06b711339d170b4caf7a72a46b166fbd8a Mon Sep 17 00:00:00 2001 From: Rob Norris Date: Wed, 27 Mar 2024 10:07:50 +1100 Subject: Linux 6.9 compat: bdev handles are now struct file bdev_open_by_path() is replaced by bdev_file_open_by_path(), which returns a plain old struct file*. Release function is gone entirely; the regular file release function fput() will take care of the bdev specifics. Reviewed-by: Tony Hutter Reviewed-by: Brian Behlendorf Signed-off-by: Rob Norris Sponsored-by: https://despairlabs.com/sponsor/ Closes #16027 Closes #16033 --- config/kernel-blkdev.m4 | 43 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 41 insertions(+), 2 deletions(-) (limited to 'config/kernel-blkdev.m4') diff --git a/config/kernel-blkdev.m4 b/config/kernel-blkdev.m4 index dae7bef9c..b6ce1e1cf 100644 --- a/config/kernel-blkdev.m4 +++ b/config/kernel-blkdev.m4 @@ -54,6 +54,26 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_OPEN_BY_PATH], [ ]) ]) +dnl # +dnl # 6.9.x API change +dnl # bdev_file_open_by_path() replaced bdev_open_by_path(), +dnl # and returns struct file* +dnl # +AC_DEFUN([ZFS_AC_KERNEL_SRC_BDEV_FILE_OPEN_BY_PATH], [ + ZFS_LINUX_TEST_SRC([bdev_file_open_by_path], [ + #include + #include + ], [ + struct file *file __attribute__ ((unused)) = NULL; + const char *path = "path"; + fmode_t mode = 0; + void *holder = NULL; + struct blk_holder_ops h; + + file = bdev_file_open_by_path(path, mode, holder, &h); + ]) +]) + AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH], [ AC_MSG_CHECKING([whether blkdev_get_by_path() exists and takes 3 args]) ZFS_LINUX_TEST_RESULT([blkdev_get_by_path], [ @@ -73,7 +93,16 @@ AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_GET_BY_PATH], [ [bdev_open_by_path() exists]) AC_MSG_RESULT(yes) ], [ - ZFS_LINUX_TEST_ERROR([blkdev_get_by_path()]) + AC_MSG_RESULT(no) + AC_MSG_CHECKING([whether bdev_file_open_by_path() exists]) + ZFS_LINUX_TEST_RESULT([bdev_file_open_by_path], [ + AC_DEFINE(HAVE_BDEV_FILE_OPEN_BY_PATH, 1, + [bdev_file_open_by_path() exists]) + AC_MSG_RESULT(yes) + ], [ + AC_MSG_RESULT(no) + ZFS_LINUX_TEST_ERROR([blkdev_get_by_path()]) + ]) ]) ]) ]) @@ -149,10 +178,19 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_RELEASE], [ ]) ]) +dnl # +dnl # 6.9.x API change +dnl # +dnl # bdev_release() now private, but because bdev_file_open_by_path() returns +dnl # struct file*, we can just use fput(). So the blkdev_put test no longer +dnl # fails if not found. +dnl # + AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_PUT], [ AC_MSG_CHECKING([whether blkdev_put() exists]) ZFS_LINUX_TEST_RESULT([blkdev_put], [ AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_BLKDEV_PUT, 1, [blkdev_put() exists]) ], [ AC_MSG_RESULT(no) AC_MSG_CHECKING([whether blkdev_put() accepts void* as arg 2]) @@ -168,7 +206,7 @@ AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_PUT], [ AC_DEFINE(HAVE_BDEV_RELEASE, 1, [bdev_release() exists]) ], [ - ZFS_LINUX_TEST_ERROR([blkdev_put()]) + AC_MSG_RESULT(no) ]) ]) ]) @@ -697,6 +735,7 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV], [ ZFS_AC_KERNEL_SRC_BLKDEV_GET_BY_PATH ZFS_AC_KERNEL_SRC_BLKDEV_GET_BY_PATH_4ARG ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_OPEN_BY_PATH + ZFS_AC_KERNEL_SRC_BDEV_FILE_OPEN_BY_PATH ZFS_AC_KERNEL_SRC_BLKDEV_PUT ZFS_AC_KERNEL_SRC_BLKDEV_PUT_HOLDER ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_RELEASE -- cgit v1.2.3