projects / mirror_zfs.git / blame
| Commit | Line | Data |
|---|---|---|
| 48ef8ba0 BB |
1 | dnl # |
| 2 | dnl # 4.14 API change | |
| 3 | dnl # kernel_write() which was introduced in 3.9 was updated to take | |
| 4 | dnl # the offset as a pointer which is needed by vn_rdwr(). | |
| 5 | dnl # | |
| 93ce2b4c | 6 | AC_DEFUN([ZFS_AC_KERNEL_WRITE], [ |
| 48ef8ba0 BB |
7 | AC_MSG_CHECKING([whether kernel_write() takes loff_t pointer]) |
| 8 | tmp_flags="$EXTRA_KCFLAGS" | |
| 9 | EXTRA_KCFLAGS="-Werror" | |
| 93ce2b4c | 10 | ZFS_LINUX_TRY_COMPILE([ |
| 48ef8ba0 BB |
11 | #include <linux/fs.h> |
| 12 | ],[ | |
| 13 | struct file *file = NULL; | |
| 14 | const void *buf = NULL; | |
| 15 | size_t count = 0; | |
| 16 | loff_t *pos = NULL; | |
| 17 | ssize_t ret; | |
| 18 | ||
| 19 | ret = kernel_write(file, buf, count, pos); | |
| 20 | ],[ | |
| 21 | AC_MSG_RESULT(yes) | |
| 22 | AC_DEFINE(HAVE_KERNEL_WRITE_PPOS, 1, | |
| 23 | [kernel_write() take loff_t pointer]) | |
| 24 | ],[ | |
| 25 | AC_MSG_RESULT(no) | |
| 26 | ]) | |
| 27 | EXTRA_KCFLAGS="$tmp_flags" | |
| 28 | ]) | |
| 29 | ||
| 30 | dnl # | |
| 31 | dnl # 4.14 API change | |
| 32 | dnl # kernel_read() which has existed for forever was updated to take | |
| 33 | dnl # the offset as a pointer which is needed by vn_rdwr(). | |
| 34 | dnl # | |
| 93ce2b4c | 35 | AC_DEFUN([ZFS_AC_KERNEL_READ], [ |
| 48ef8ba0 BB |
36 | AC_MSG_CHECKING([whether kernel_read() takes loff_t pointer]) |
| 37 | tmp_flags="$EXTRA_KCFLAGS" | |
| 38 | EXTRA_KCFLAGS="-Werror" | |
| 93ce2b4c | 39 | ZFS_LINUX_TRY_COMPILE([ |
| 48ef8ba0 BB |
40 | #include <linux/fs.h> |
| 41 | ],[ | |
| 42 | struct file *file = NULL; | |
| 43 | void *buf = NULL; | |
| 44 | size_t count = 0; | |
| 45 | loff_t *pos = NULL; | |
| 46 | ssize_t ret; | |
| 47 | ||
| 48 | ret = kernel_read(file, buf, count, pos); | |
| 49 | ],[ | |
| 50 | AC_MSG_RESULT(yes) | |
| 51 | AC_DEFINE(HAVE_KERNEL_READ_PPOS, 1, | |
| 52 | [kernel_read() take loff_t pointer]) | |
| 53 | ],[ | |
| 54 | AC_MSG_RESULT(no) | |
| 55 | ]) | |
| 56 | EXTRA_KCFLAGS="$tmp_flags" | |
| 57 | ]) |