diff options
Diffstat (limited to 'config/kernel-lookup-bdev.m4')
| -rw-r--r-- | config/kernel-lookup-bdev.m4 | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/config/kernel-lookup-bdev.m4 b/config/kernel-lookup-bdev.m4 index 245f95f04..abbf55d9b 100644 --- a/config/kernel-lookup-bdev.m4 +++ b/config/kernel-lookup-bdev.m4 @@ -1,17 +1,29 @@ dnl # -dnl # 2.6.27 API change -dnl # lookup_bdev() was exported. +dnl # 2.6.27, lookup_bdev() was exported. +dnl # 4.4.0-6.21 - x.y on Ubuntu, lookup_bdev() takes 2 arguments. dnl # AC_DEFUN([ZFS_AC_KERNEL_LOOKUP_BDEV], - [AC_MSG_CHECKING([whether lookup_bdev() is available]) + [AC_MSG_CHECKING([whether lookup_bdev() wants 1 arg]) ZFS_LINUX_TRY_COMPILE_SYMBOL([ #include <linux/fs.h> ], [ lookup_bdev(NULL); ], [lookup_bdev], [fs/block_dev.c], [ AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_LOOKUP_BDEV, 1, [lookup_bdev() is available]) + AC_DEFINE(HAVE_1ARG_LOOKUP_BDEV, 1, [lookup_bdev() wants 1 arg]) ], [ AC_MSG_RESULT(no) + AC_MSG_CHECKING([whether lookup_bdev() wants 2 args]) + ZFS_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/fs.h> + ], [ + lookup_bdev(NULL, FMODE_READ); + ], [lookup_bdev], [fs/block_dev.c], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_2ARGS_LOOKUP_BDEV, 1, + [lookup_bdev() wants 2 args]) + ], [ + AC_MSG_RESULT(no) + ]) ]) -]) +])
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