diff options
Diffstat (limited to 'config/kernel-blk-end-request.m4')
| -rw-r--r-- | config/kernel-blk-end-request.m4 | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/config/kernel-blk-end-request.m4 b/config/kernel-blk-end-request.m4 index 6719516c1..20ad1a926 100644 --- a/config/kernel-blk-end-request.m4 +++ b/config/kernel-blk-end-request.m4 @@ -1,6 +1,8 @@ dnl # -dnl # 2.6.18 API change -nl # +dnl # 2.6.31 API change +dnl # In 2.6.29 kernels blk_end_request() was a GPL-only symbol, this was +dnl # changed in 2.6.31 so it may be used by non-GPL modules. +dnl # AC_DEFUN([ZFS_AC_KERNEL_BLK_END_REQUEST], [ AC_MSG_CHECKING([whether blk_end_request() is available]) ZFS_LINUX_TRY_COMPILE([ @@ -15,4 +17,21 @@ AC_DEFUN([ZFS_AC_KERNEL_BLK_END_REQUEST], [ ],[ AC_MSG_RESULT(no) ]) + + AC_MSG_CHECKING([whether blk_end_request() is GPL-only]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/module.h> + #include <linux/blkdev.h> + + MODULE_LICENSE("CDDL"); + ],[ + struct request *req = NULL; + (void) blk_end_request(req, 0, 0); + ],[ + AC_MSG_RESULT(no) + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_BLK_END_REQUEST_GPL_ONLY, 1, + [blk_end_request() is GPL-only]) + ]) ]) |