jimzah/openafs
1
0
Fork 0
mirror of https://git.openafs.org/openafs.git synced 2025-01-18 06:50:12 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

STABLE14-linux-fc9-20080419

Browse Source 
LICENSE IPL10

add in needed changes for fc9 kernels


(cherry picked from commit 0caa578a05)
This commit is contained in:
Simon Wilkinson 2008-04-19 22:56:06 +00:00 committed by Derrick Brashear
parent e2c5207ca4
commit 2df69d3595
3 changed files with 36 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
acinclude.m4
View File

@ -677,6 +677,7 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
LINUX_EXPORTS_SYS_CLOSE
LINUX_EXPORTS_SYS_OPEN
LINUX_EXPORTS_SYS_WAIT4
LINUX_EXPORTS_RCU_READ_LOCK
LINUX_WHICH_MODULES
if test "x$ac_cv_linux_config_modversions" = "xno" -o $AFS_SYSKVERS -ge 26; then
AC_MSG_WARN([Cannot determine sys_call_table status. assuming it isn't exported])

34
src/afs/LINUX/osi_groups.c
View File

@ -50,12 +50,14 @@ afs_setgroups(cred_t **cr, struct group_info *group_info, int change_parent)
crset(*cr);
#ifdef STRUCT_TASK_STRUCT_HAS_PARENT
if (change_parent) {
old_info = current->parent->group_info;
get_group_info(group_info);
current->parent->group_info = group_info;
put_group_info(old_info);
}
#endif
return (0);
}
@ -625,32 +627,40 @@ extern rwlock_t tasklist_lock __attribute__((weak));
void osi_keyring_init(void)
{
struct task_struct *p;
/* If we can't lock the tasklist, either with its explicit lock,
* or by using the RCU lock, then we can't safely work out the
* type of a keyring. So, we have to rely on the weak reference.
* If that's not available, then keyring based PAGs won't work.
*/
#if defined(EXPORTED_TASKLIST_LOCK) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) && defined(EXPORTED_RCU_READ_LOCK))
if (__key_type_keyring == NULL) {
#ifdef EXPORTED_TASKLIST_LOCK
# ifdef EXPORTED_TASKLIST_LOCK
if (&tasklist_lock)
read_lock(&tasklist_lock);
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
# ifdef EXPORTED_TASKLIST_LOCK
else
# endif
# if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) && defined(EXPORTED_RCU_READ_LOCK))
# ifdef EXPORTED_TASKLIST_LOCK
else
# endif
rcu_read_lock();
#endif
# endif
p = find_task_by_pid(1);
if (p && p->user->session_keyring)
__key_type_keyring = p->user->session_keyring->type;
#ifdef EXPORTED_TASKLIST_LOCK
# ifdef EXPORTED_TASKLIST_LOCK
if (&tasklist_lock)
read_unlock(&tasklist_lock);
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16)
# ifdef EXPORTED_TASKLIST_LOCK
else
# endif
# if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,16) && defined(EXPORTED_RCU_READ_LOCK))
# ifdef EXPORTED_TASKLIST_LOCK
else
# endif
rcu_read_unlock();
#endif
# endif
}
#endif
register_key_type(&key_type_afs_pag);
}

13
src/cf/linux-test4.m4
View File

@ -980,3 +980,16 @@ printk("%x\n", _nd.path);],
ac_cv_linux_struct_nameidata_has_path=no)])
AC_MSG_RESULT($ac_cv_linux_struct_nameidata_has_path)])
AC_DEFUN([LINUX_EXPORTS_RCU_READ_LOCK], [
AC_MSG_CHECKING([if rcu_read_lock is usable])
AC_CACHE_VAL([ac_cv_linux_exports_rcu_read_lock], [
AC_TRY_KBUILD(
[#include <linux/rcupdate.h>],
[rcu_read_lock();],
ac_cv_linux_exports_rcu_read_lock=yes,
ac_cv_linux_exports_rcu_read_lock=no)])
AC_MSG_RESULT($ac_cv_linux_exports_rcu_read_lock)
if test "x$ac_cv_linux_exports_rcu_read_lock" = "xyes"; then
AC_DEFINE([EXPORTED_RCU_READ_LOCK], 1, [define if rcu_read_lock() is usable])
fi])