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Linux 5.20 compat: bdevname()

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As of the Linux 5.20 kernel bdevname() has been removed, all
callers should use snprintf() and the "%pg" format specifier.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #13728
This commit is contained in:
Brian Behlendorf
2022-08-03 11:35:47 -07:00
parent 673aa7e6cf
commit bebdf52a16
2 changed files with 39 additions and 1 deletions
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config/kernel-blkdev.m4
+28
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@@ -294,6 +294,32 @@ AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_BDEV_WHOLE], [
])
])
dnl #
dnl # 5.20 API change,
dnl # Removed bdevname(), snprintf(.., %pg) should be used.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV_BDEVNAME], [
ZFS_LINUX_TEST_SRC([bdevname], [
#include <linux/fs.h>
#include <linux/blkdev.h>
], [
struct block_device *bdev __attribute__ ((unused)) = NULL;
char path[BDEVNAME_SIZE];
(void) bdevname(bdev, path);
])
])
AC_DEFUN([ZFS_AC_KERNEL_BLKDEV_BDEVNAME], [
AC_MSG_CHECKING([whether bdevname() exists])
ZFS_LINUX_TEST_RESULT([bdevname], [
AC_DEFINE(HAVE_BDEVNAME, 1, [bdevname() is available])
AC_MSG_RESULT(yes)
], [
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 5.19 API: blkdev_issue_secure_erase()
dnl # 3.10 API: blkdev_issue_discard(..., BLKDEV_DISCARD_SECURE)
@@ -377,6 +403,7 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_BLKDEV], [
ZFS_AC_KERNEL_SRC_BLKDEV_CHECK_DISK_CHANGE
ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_CHECK_MEDIA_CHANGE
ZFS_AC_KERNEL_SRC_BLKDEV_BDEV_WHOLE
ZFS_AC_KERNEL_SRC_BLKDEV_BDEVNAME
ZFS_AC_KERNEL_SRC_BLKDEV_ISSUE_SECURE_ERASE
])
@@ -391,6 +418,7 @@ AC_DEFUN([ZFS_AC_KERNEL_BLKDEV], [
ZFS_AC_KERNEL_BLKDEV_CHECK_DISK_CHANGE
ZFS_AC_KERNEL_BLKDEV_BDEV_CHECK_MEDIA_CHANGE
ZFS_AC_KERNEL_BLKDEV_BDEV_WHOLE
ZFS_AC_KERNEL_BLKDEV_BDEVNAME
ZFS_AC_KERNEL_BLKDEV_GET_ERESTARTSYS
ZFS_AC_KERNEL_BLKDEV_ISSUE_SECURE_ERASE
])