diff options
| author | Chris Dunlop <[email protected]> | 2013-06-03 16:58:52 +1000 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2013-07-08 15:41:57 -0700 |
| commit | a1d9543a39942be56879ca9338078afc77c25cea (patch) | |
| tree | 61e93dbaf3b3911ba6ab21fe3760870f788ce39a /config/kernel-block-device-operations-release-void.m4 | |
| parent | 168d056cf8ed073e17f008b9109ad3d37e63f172 (diff) | |
3.10 API change: block_device_operations->release() returns void
Linux kernel commit torvalds/linux@db2a144 changed the return type
of block_device_operations->release() to void. Detect the expected
prototype and defined our callout accordingly.
Signed-off-by: Chris Dunlop <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #1494
Diffstat (limited to 'config/kernel-block-device-operations-release-void.m4')
| -rw-r--r-- | config/kernel-block-device-operations-release-void.m4 | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/config/kernel-block-device-operations-release-void.m4 b/config/kernel-block-device-operations-release-void.m4 new file mode 100644 index 000000000..a73f85872 --- /dev/null +++ b/config/kernel-block-device-operations-release-void.m4 @@ -0,0 +1,29 @@ +dnl # +dnl # 3.10.x API change +dnl # +AC_DEFUN([ZFS_AC_KERNEL_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID], [ + AC_MSG_CHECKING([whether block_device_operations.release is void]) + tmp_flags="$EXTRA_KCFLAGS" + EXTRA_KCFLAGS="${NO_UNUSED_BUT_SET_VARIABLE}" + ZFS_LINUX_TRY_COMPILE([ + #include <linux/blkdev.h> + + void blk_release(struct gendisk *g, fmode_t mode) { return; } + + static const struct block_device_operations + bops __attribute__ ((unused)) = { + .open = NULL, + .release = blk_release, + .ioctl = NULL, + .compat_ioctl = NULL, + }; + ],[ + ],[ + AC_MSG_RESULT(void) + AC_DEFINE(HAVE_BLOCK_DEVICE_OPERATIONS_RELEASE_VOID, 1, + [struct block_device_operations.release returns void]) + ],[ + AC_MSG_RESULT(int) + ]) + EXTRA_KCFLAGS="$tmp_flags" +]) |