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Diffstat (limited to 'config/kernel-truncate-range.m4')
| -rw-r--r-- | config/kernel-truncate-range.m4 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/config/kernel-truncate-range.m4 b/config/kernel-truncate-range.m4 new file mode 100644 index 000000000..da2cb50fc --- /dev/null +++ b/config/kernel-truncate-range.m4 @@ -0,0 +1,24 @@ +dnl # +dnl # 3.5.0 API change +dnl # torvalds/linux@17cf28afea2a1112f240a3a2da8af883be024811 removed +dnl # truncate_range(). The file hole punching functionality is now +dnl # provided by fallocate() +dnl # +AC_DEFUN([ZFS_AC_KERNEL_TRUNCATE_RANGE], [ + AC_MSG_CHECKING([whether iops->truncate_range() exists]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/fs.h> + void truncate_range(struct inode *inode, loff_t start, + loff_t end) { return; } + static struct inode_operations iops __attribute__ ((unused)) = { + .truncate_range = truncate_range, + }; + ],[ + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_INODE_TRUNCATE_RANGE, 1, + [iops->truncate_range() exists]) + ],[ + AC_MSG_RESULT(no) + ]) +]) |