diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2023-02-28 18:59:37 -0800 |
|---|---|---|
| committer | Zorro Lang <zlang@kernel.org> | 2023-03-02 17:18:08 +0800 |
| commit | bf183828b8f4c3caf3d3fd1f96d9f396db7508e5 (patch) | |
| tree | 2eaa2a1f14c23f4c1bd7eb0bb8495072f1861e48 /m4 | |
| parent | f02d41a7b5cade6bb7f9b4009e787b284283eccf (diff) | |
fsx: support FIEXCHANGE_RANGE
Upgrade fsx to support exchanging file contents.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/package_libcdev.m4 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/m4/package_libcdev.m4 b/m4/package_libcdev.m4 index 98572aec..b41c087b 100644 --- a/m4/package_libcdev.m4 +++ b/m4/package_libcdev.m4 @@ -154,3 +154,23 @@ AC_DEFUN([AC_HAVE_RLIMIT_NOFILE], AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)]) AC_SUBST(have_rlimit_nofile) ]) + +# +# Check if we have a FIEXCHANGE_RANGE ioctl (Linux) +# +AC_DEFUN([AC_HAVE_FIEXCHANGE], + [ AC_MSG_CHECKING([for FIEXCHANGE_RANGE]) + AC_LINK_IFELSE([AC_LANG_PROGRAM([[ +#define _GNU_SOURCE +#include <sys/syscall.h> +#include <sys/ioctl.h> +#include <unistd.h> +#include <linux/fs.h> +#include <linux/fiexchange.h> + ]], [[ + struct file_xchg_range fxr; + ioctl(-1, FIEXCHANGE_RANGE, &fxr); + ]])],[have_fiexchange=yes + AC_MSG_RESULT(yes)],[AC_MSG_RESULT(no)]) + AC_SUBST(have_fiexchange) + ]) |