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Diffstat (limited to 'config/kernel-blk-fetch-request.m4')
| -rw-r--r-- | config/kernel-blk-fetch-request.m4 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/config/kernel-blk-fetch-request.m4 b/config/kernel-blk-fetch-request.m4 new file mode 100644 index 000000000..34a5d2fa8 --- /dev/null +++ b/config/kernel-blk-fetch-request.m4 @@ -0,0 +1,22 @@ +dnl # +dnl # 2.6.31 API change +dnl # Request queue peek/retrieval interface cleanup, the blk_fetch_request() +dnl # function replaces the elv_next_request() and blk_fetch_request() +dnl # functions. The updated blk_fetch_request() function returns the +dnl # next available request and removed it from the request queue. +dnl # +AC_DEFUN([ZFS_AC_KERNEL_BLK_FETCH_REQUEST], [ + AC_MSG_CHECKING([whether blk_fetch_request() is available]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/blkdev.h> + ],[ + struct request_queue *q = NULL; + (void) blk_fetch_request(q); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_BLK_FETCH_REQUEST, 1, + [blk_fetch_request() is available]) + ],[ + AC_MSG_RESULT(no) + ]) +]) |