projects / mirror_zfs.git / blame
| Commit | Line | Data |
|---|---|---|
| cb2d1901 | 1 | dnl # |
| 066e8252 | 2 | dnl # Linux 2.6.38 - 3.x API |
| 608f8749 BB |
3 | dnl # The fallocate callback was moved from the inode_operations |
| 4 | dnl # structure to the file_operations structure. | |
| cb2d1901 | 5 | dnl # |
| 4372e96f RE |
6 | dnl # |
| 7 | dnl # Linux 3.15+ | |
| 8 | dnl # fallocate learned a new flag, FALLOC_FL_ZERO_RANGE | |
| 9 | dnl # | |
| 608f8749 | 10 | AC_DEFUN([ZFS_AC_KERNEL_SRC_FALLOCATE], [ |
| 608f8749 | 11 | ZFS_LINUX_TEST_SRC([file_fallocate], [ |
| cb2d1901 | 12 | #include <linux/fs.h> |
| c38367c7 RY |
13 | |
| 14 | long test_fallocate(struct file *file, int mode, | |
| 15 | loff_t offset, loff_t len) { return 0; } | |
| 16 | ||
| 17 | static const struct file_operations | |
| 18 | fops __attribute__ ((unused)) = { | |
| 19 | .fallocate = test_fallocate, | |
| cb2d1901 | 20 | }; |
| 608f8749 | 21 | ], []) |
| 4372e96f RE |
22 | ZFS_LINUX_TEST_SRC([falloc_fl_zero_range], [ |
| 23 | #include <linux/falloc.h> | |
| 24 | ],[ | |
| 25 | int flags __attribute__ ((unused)); | |
| 26 | flags = FALLOC_FL_ZERO_RANGE; | |
| 27 | ]) | |
| 608f8749 BB |
28 | ]) |
| 29 | ||
| 30 | AC_DEFUN([ZFS_AC_KERNEL_FALLOCATE], [ | |
| 31 | AC_MSG_CHECKING([whether fops->fallocate() exists]) | |
| 32 | ZFS_LINUX_TEST_RESULT([file_fallocate], [ | |
| 33 | AC_MSG_RESULT(yes) | |
| 4372e96f RE |
34 | AC_MSG_CHECKING([whether FALLOC_FL_ZERO_RANGE exists]) |
| 35 | ZFS_LINUX_TEST_RESULT([falloc_fl_zero_range], [ | |
| 36 | AC_MSG_RESULT(yes) | |
| 37 | AC_DEFINE(HAVE_FALLOC_FL_ZERO_RANGE, 1, [FALLOC_FL_ZERO_RANGE is defined]) | |
| 38 | ],[ | |
| 39 | AC_MSG_RESULT(no) | |
| 40 | ]) | |
| 0a6b03d3 | 41 | ],[ |
| 066e8252 | 42 | ZFS_LINUX_TEST_ERROR([file_fallocate]) |
| 0a6b03d3 RY |
43 | ]) |
| 44 | ]) |