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Remove credential configure checks.

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The groups_search() function was never exported by a mainline kernel
therefore we drop this compatibility code and always provide our own
implementation.

Additionally, the cred_t structure has been available since 2.6.29
so there is no longer a need to maintain compatibility code.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Brian Behlendorf
2014-10-02 13:41:09 -04:00
parent e39174ed56
commit 68a829b29d
3 changed files with 23 additions and 174 deletions
Download Patch File Download Diff File Expand all files Collapse all files
config/spl-build.m4
-46
View File
@@ -35,9 +35,7 @@ AC_DEFUN([SPL_AC_CONFIG_KERNEL], [
SPL_AC_2ARGS_VFS_FSYNC
SPL_AC_INODE_TRUNCATE_RANGE
SPL_AC_FS_STRUCT_SPINLOCK
SPL_AC_CRED_STRUCT
SPL_AC_KUIDGID_T
SPL_AC_GROUPS_SEARCH
SPL_AC_PUT_TASK_STRUCT
SPL_AC_5ARGS_PROC_HANDLER
SPL_AC_KVASPRINTF
@@ -1135,26 +1133,6 @@ AC_DEFUN([SPL_AC_FS_STRUCT_SPINLOCK], [
EXTRA_KCFLAGS="$tmp_flags"
])
dnl #
dnl # 2.6.29 API change,
dnl # check whether 'struct cred' exists
dnl #
AC_DEFUN([SPL_AC_CRED_STRUCT], [
AC_MSG_CHECKING([whether struct cred exists])
SPL_LINUX_TRY_COMPILE([
#include <linux/cred.h>
],[
struct cred *cr __attribute__ ((unused));
cr = NULL;
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CRED_STRUCT, 1, [struct cred exists])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # User namespaces, use kuid_t in place of uid_t
dnl # where available. Not strictly a user namespaces thing
@@ -1184,30 +1162,6 @@ AC_DEFUN([SPL_AC_KUIDGID_T], [
])
])
dnl #
dnl # Custom SPL patch may export this symbol.
dnl #
AC_DEFUN([SPL_AC_GROUPS_SEARCH],
[AC_MSG_CHECKING([whether groups_search() is available])
SPL_LINUX_TRY_COMPILE_SYMBOL([
#include <linux/cred.h>
#ifdef HAVE_KUIDGID_T
#include <linux/uidgid.h>
#endif
], [
#ifdef HAVE_KUIDGID_T
groups_search(NULL, KGIDT_INIT(0));
#else
groups_search(NULL, 0);
#endif
], [groups_search], [], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_GROUPS_SEARCH, 1, [groups_search() is available])
], [
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.x API change,
dnl # __put_task_struct() was exported in RHEL5 but unavailable elsewhere.