mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2025-01-01 05:49:35 +03:00
5722dce473
The BIO_MAX_PAGES macro is being retired in favor of a bio_max_segs()
function that implements the typical MIN(x,y) logic used throughout the
kernel for bounding the allocation, and also the new implementation is
intended to be signed-safe (which the former was not).
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #11765
(cherry picked from commit ffd6978ef5)
Signed-off-by: Jonathon Fernyhough <jonathon@m2x.dev>
24 lines
577 B
Plaintext
24 lines
577 B
Plaintext
dnl #
|
|
dnl # 5.12 API change removes BIO_MAX_PAGES in favor of bio_max_segs()
|
|
dnl # which will handle the logic of setting the upper-bound to a
|
|
dnl # BIO_MAX_PAGES, internally.
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_SRC_BIO_MAX_SEGS], [
|
|
ZFS_LINUX_TEST_SRC([bio_max_segs], [
|
|
#include <linux/bio.h>
|
|
],[
|
|
bio_max_segs(1);
|
|
])
|
|
])
|
|
|
|
AC_DEFUN([ZFS_AC_KERNEL_BIO_MAX_SEGS], [
|
|
AC_MSG_CHECKING([whether bio_max_segs() exists])
|
|
ZFS_LINUX_TEST_RESULT([bio_max_segs], [
|
|
AC_MSG_RESULT(yes)
|
|
|
|
AC_DEFINE([HAVE_BIO_MAX_SEGS], 1, [bio_max_segs() is implemented])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
])
|
|
])
|