projects / mirror_zfs-debian.git / blame
| Commit | Line | Data |
|---|---|---|
| ea04106b | 1 | dnl # |
| 22929307 | 2 | dnl # Linux 3.16 API |
| ea04106b AX |
3 | dnl # |
| 4 | AC_DEFUN([ZFS_AC_KERNEL_VFS_RW_ITERATE], | |
| 5 | [AC_MSG_CHECKING([whether fops->read/write_iter() are available]) | |
| 6 | ZFS_LINUX_TRY_COMPILE([ | |
| 7 | #include <linux/fs.h> | |
| 8 | ||
| 9 | ssize_t test_read(struct kiocb *kiocb, struct iov_iter *to) | |
| 10 | { return 0; } | |
| 11 | ssize_t test_write(struct kiocb *kiocb, struct iov_iter *from) | |
| 12 | { return 0; } | |
| 13 | ||
| 14 | static const struct file_operations | |
| 15 | fops __attribute__ ((unused)) = { | |
| 16 | .read_iter = test_read, | |
| 17 | .write_iter = test_write, | |
| 18 | }; | |
| 19 | ],[ | |
| 20 | ],[ | |
| 21 | AC_MSG_RESULT(yes) | |
| 22 | AC_DEFINE(HAVE_VFS_RW_ITERATE, 1, | |
| 23 | [fops->read/write_iter() are available]) | |
| 22929307 AX |
24 | |
| 25 | ZFS_AC_KERNEL_NEW_SYNC_READ | |
| 26 | ],[ | |
| 27 | AC_MSG_RESULT(no) | |
| 28 | ]) | |
| 29 | ]) | |
| 30 | ||
| 31 | dnl # | |
| 32 | dnl # Linux 4.1 API | |
| 33 | dnl # | |
| 34 | AC_DEFUN([ZFS_AC_KERNEL_NEW_SYNC_READ], | |
| 047218e2 | 35 | [AC_MSG_CHECKING([whether new_sync_read/write() are available]) |
| 22929307 AX |
36 | ZFS_LINUX_TRY_COMPILE([ |
| 37 | #include <linux/fs.h> | |
| 38 | ],[ | |
| 047218e2 AX |
39 | ssize_t ret __attribute__ ((unused)); |
| 40 | struct file *filp = NULL; | |
| 41 | char __user *rbuf = NULL; | |
| 42 | const char __user *wbuf = NULL; | |
| 43 | size_t len = 0; | |
| 44 | loff_t ppos; | |
| 45 | ||
| 46 | ret = new_sync_read(filp, rbuf, len, &ppos); | |
| 47 | ret = new_sync_write(filp, wbuf, len, &ppos); | |
| 22929307 AX |
48 | ],[ |
| 49 | AC_MSG_RESULT(yes) | |
| 50 | AC_DEFINE(HAVE_NEW_SYNC_READ, 1, | |
| 047218e2 | 51 | [new_sync_read()/new_sync_write() are available]) |
| ea04106b AX |
52 | ],[ |
| 53 | AC_MSG_RESULT(no) | |
| 54 | ]) | |
| 55 | ]) | |
| 68d83c55 AX |
56 | |
| 57 | dnl # | |
| 58 | dnl # Linux 4.1.x API | |
| 59 | dnl # | |
| 60 | AC_DEFUN([ZFS_AC_KERNEL_GENERIC_WRITE_CHECKS], | |
| 61 | [AC_MSG_CHECKING([whether generic_write_checks() takes kiocb]) | |
| 62 | ZFS_LINUX_TRY_COMPILE([ | |
| 63 | #include <linux/fs.h> | |
| 64 | ||
| 65 | ],[ | |
| 66 | struct kiocb *iocb = NULL; | |
| 67 | struct iov_iter *iov = NULL; | |
| 68 | generic_write_checks(iocb, iov); | |
| 69 | ],[ | |
| 70 | AC_MSG_RESULT(yes) | |
| 71 | AC_DEFINE(HAVE_GENERIC_WRITE_CHECKS_KIOCB, 1, | |
| 72 | [generic_write_checks() takes kiocb]) | |
| 73 | ],[ | |
| 74 | AC_MSG_RESULT(no) | |
| 75 | ]) | |
| 76 | ]) |