c/mirror_zfs
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_zfs.git synced 2026-05-24 19:28:53 +03:00
Code Issues Packages Projects Releases Wiki Activity

SLES10 Fixes (part 2):

Browse Source 
- Configure check, the div64_64() function was renamed to
  div64_u64() as of 2.6.26.
- Configure check, the global_page_state() fuction was introduced
  in 2.6.18 kernels.  The earlier 2.6.16 based SLES10 must not try
  and use it, thankfully get_zone_counts() is still available.
- To simplify debugging poison all symbols aquired dynamically
  using spl_kallsyms_lookup_name() with SYMBOL_POISON.
- Add console messages when the user mode helpers fail.
- spl_kmem_init_globals() use bit shifts instead of division.
- When the monotonic clock is unavailable __gethrtime() must perform
  the HZ division as an 'unsigned long long' because the SPL only
  implements __udivdi3(), and not __divdi3() for 'long long' division
  on 32-bit arches.
This commit is contained in:
Brian Behlendorf
2009-05-20 10:08:37 -07:00
parent bf338d8d09
commit 96dded3844
11 changed files with 217 additions and 94 deletions
Download Patch File Download Diff File Expand all files Collapse all files
config/spl-build.m4
+42 -15
View File
@@ -706,22 +706,29 @@ AC_DEFUN([SPL_AC_INODE_I_MUTEX], [
])
dnl #
dnl # 2.6.14 API change,
dnl # check whether 'div64_64()' is available
dnl #
dnl # 2.6.22 API change,
dnl # First introduced 'div64_64()' in lib/div64.c
dnl
AC_DEFUN([SPL_AC_DIV64_64], [
AC_MSG_CHECKING([whether div64_64() is available])
SPL_LINUX_TRY_COMPILE([
#include <asm/div64.h>
#include <linux/types.h>
],[
uint64_t i = div64_64(1ULL, 1ULL);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_DIV64_64, 1, [div64_64() is available])
],[
AC_MSG_RESULT(no)
])
SPL_CHECK_SYMBOL_EXPORT(
[div64_64],
[],
[AC_DEFINE(HAVE_DIV64_64, 1,
[div64_64() is available])],
[])
])
dnl #
dnl # 2.6.26 API change,
dnl # Renamed 'div64_64()' to 'div64_u64' in lib/div64.c
dnl #
AC_DEFUN([SPL_AC_DIV64_U64], [
SPL_CHECK_SYMBOL_EXPORT(
[div64_u64],
[],
[AC_DEFINE(HAVE_DIV64_U64, 1,
[div64_u64() is available])],
[])
])
dnl #
@@ -836,6 +843,26 @@ AC_DEFUN([SPL_AC_GET_ZONE_COUNTS], [
[])
])
dnl #
dnl # 2.6.18 API change,
dnl # First introduced global_page_state() support as an inline.
dnl #
AC_DEFUN([SPL_AC_GLOBAL_PAGE_STATE], [
AC_MSG_CHECKING([whether global_page_state() is available])
SPL_LINUX_TRY_COMPILE([
#include <linux/vmstat.h>
],[
unsigned long state;
state = global_page_state(NR_FREE_PAGES);
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GLOBAL_PAGE_STATE, 1,
[global_page_state() is available])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.21 API change,
dnl # Public global zone stats now include free/inactive/active page