diff options
| author | Rob N <[email protected]> | 2024-03-21 10:46:15 +1100 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2024-03-21 09:35:17 -0700 |
| commit | 58211157bf866bbcdd8720e92c27297db3ba75d6 (patch) | |
| tree | 3b37dae9fcf85ef2c8c62bff3e0d374676335328 /config/kernel-vfs-file_range.m4 | |
| parent | c883088df83ced3a2b8b38e6d89a5e63fb153ee4 (diff) | |
Linux 6.8 compat: use splice_copy_file_range() for fallback
Linux 6.8 removes generic_copy_file_range(), which had been reduced to a
simple wrapper around splice_copy_file_range(). Detect that function
directly and use it if generic_ is not available.
Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Tony Hutter <[email protected]>
Reviewed by: Brian Behlendorf <[email protected]>
Signed-off-by: Rob Norris <[email protected]>
Closes #15930
Closes #15931
(cherry picked from commit ef08a4d4065d21414d7fedccac20da6bfda4dfd0)
Diffstat (limited to 'config/kernel-vfs-file_range.m4')
| -rw-r--r-- | config/kernel-vfs-file_range.m4 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/config/kernel-vfs-file_range.m4 b/config/kernel-vfs-file_range.m4 index cc96404d8..8a5cbe2ee 100644 --- a/config/kernel-vfs-file_range.m4 +++ b/config/kernel-vfs-file_range.m4 @@ -16,6 +16,9 @@ dnl # dnl # 5.3: VFS copy_file_range() expected to do its own fallback, dnl # generic_copy_file_range() added to support it dnl # +dnl # 6.8: generic_copy_file_range() removed, replaced by +dnl # splice_copy_file_range() +dnl # AC_DEFUN([ZFS_AC_KERNEL_SRC_VFS_COPY_FILE_RANGE], [ ZFS_LINUX_TEST_SRC([vfs_copy_file_range], [ #include <linux/fs.h> @@ -72,6 +75,30 @@ AC_DEFUN([ZFS_AC_KERNEL_VFS_GENERIC_COPY_FILE_RANGE], [ ]) ]) +AC_DEFUN([ZFS_AC_KERNEL_SRC_VFS_SPLICE_COPY_FILE_RANGE], [ + ZFS_LINUX_TEST_SRC([splice_copy_file_range], [ + #include <linux/splice.h> + ], [ + struct file *src_file __attribute__ ((unused)) = NULL; + loff_t src_off __attribute__ ((unused)) = 0; + struct file *dst_file __attribute__ ((unused)) = NULL; + loff_t dst_off __attribute__ ((unused)) = 0; + size_t len __attribute__ ((unused)) = 0; + splice_copy_file_range(src_file, src_off, dst_file, dst_off, + len); + ]) +]) +AC_DEFUN([ZFS_AC_KERNEL_VFS_SPLICE_COPY_FILE_RANGE], [ + AC_MSG_CHECKING([whether splice_copy_file_range() is available]) + ZFS_LINUX_TEST_RESULT([splice_copy_file_range], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_VFS_SPLICE_COPY_FILE_RANGE, 1, + [splice_copy_file_range() is available]) + ],[ + AC_MSG_RESULT(no) + ]) +]) + AC_DEFUN([ZFS_AC_KERNEL_SRC_VFS_CLONE_FILE_RANGE], [ ZFS_LINUX_TEST_SRC([vfs_clone_file_range], [ #include <linux/fs.h> |