diff options
| -rw-r--r-- | config/kernel-add-disk.m4 | 1 | ||||
| -rw-r--r-- | config/kernel-vfs-iov_iter.m4 | 22 | ||||
| -rw-r--r-- | include/os/linux/spl/sys/uio.h | 4 |
3 files changed, 24 insertions, 3 deletions
diff --git a/config/kernel-add-disk.m4 b/config/kernel-add-disk.m4 index 3bc40f1e7..5d1779eb4 100644 --- a/config/kernel-add-disk.m4 +++ b/config/kernel-add-disk.m4 @@ -13,7 +13,6 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_ADD_DISK], [ ]) ]) - AC_DEFUN([ZFS_AC_KERNEL_ADD_DISK], [ AC_MSG_CHECKING([whether add_disk() returns int]) ZFS_LINUX_TEST_RESULT([add_disk_ret], diff --git a/config/kernel-vfs-iov_iter.m4 b/config/kernel-vfs-iov_iter.m4 index ecdda939f..57f78745a 100644 --- a/config/kernel-vfs-iov_iter.m4 +++ b/config/kernel-vfs-iov_iter.m4 @@ -41,6 +41,17 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_VFS_IOV_ITER], [ error = iov_iter_fault_in_readable(&iter, size); ]) + ZFS_LINUX_TEST_SRC([fault_in_iov_iter_readable], [ + #include <linux/fs.h> + #include <linux/uio.h> + ],[ + struct iov_iter iter = { 0 }; + size_t size = 512; + int error __attribute__ ((unused)); + + error = fault_in_iov_iter_readable(&iter, size); + ]) + ZFS_LINUX_TEST_SRC([iov_iter_count], [ #include <linux/fs.h> #include <linux/uio.h> @@ -123,8 +134,15 @@ AC_DEFUN([ZFS_AC_KERNEL_VFS_IOV_ITER], [ AC_DEFINE(HAVE_IOV_ITER_FAULT_IN_READABLE, 1, [iov_iter_fault_in_readable() is available]) ],[ - AC_MSG_RESULT(no) - enable_vfs_iov_iter="no" + AC_MSG_CHECKING([whether fault_in_iov_iter_readable() is available]) + ZFS_LINUX_TEST_RESULT([fault_in_iov_iter_readable], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_FAULT_IN_IOV_ITER_READABLE, 1, + [fault_in_iov_iter_readable() is available]) + ],[ + AC_MSG_RESULT(no) + enable_vfs_iov_iter="no" + ]) ]) AC_MSG_CHECKING([whether iov_iter_count() is available]) diff --git a/include/os/linux/spl/sys/uio.h b/include/os/linux/spl/sys/uio.h index 66af2b0b5..439eec986 100644 --- a/include/os/linux/spl/sys/uio.h +++ b/include/os/linux/spl/sys/uio.h @@ -34,6 +34,10 @@ #include <asm/uaccess.h> #include <sys/types.h> +#if defined(HAVE_VFS_IOV_ITER) && defined(HAVE_FAULT_IN_IOV_ITER_READABLE) +#define iov_iter_fault_in_readable(a, b) fault_in_iov_iter_readable(a, b) +#endif + typedef struct iovec iovec_t; typedef enum zfs_uio_rw { |