From: Matthew Miller <mattdm@mattdm.org>
Date: Fri, 14 Jan 2005 17:36:39 +0000 (+0000)
Subject: linux26-rlim-20050114
X-Git-Tag: BP-disconnected~46
X-Git-Url: https://git.openafs.org/?p=openafs.git;a=commitdiff_plain;h=9e81a8e4c2e7830ab18de1f5dd23dfc916ef2bf0

linux26-rlim-20050114


detect rlim stuff for linux 2.6
---

diff --git a/acinclude.m4 b/acinclude.m4
index 692f208..d837ef4 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -583,6 +583,8 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
 		 LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIG
 		 LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGHAND
 		 LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGMASK_LOCK
+		 LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_RLIM
+		 LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM
 		 LINUX_WHICH_MODULES
                  if test "x$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])
@@ -714,6 +716,12 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
 		 if test "x$ac_cv_linux_sched_struct_task_struct_has_sig" = "xyes"; then 
 		  AC_DEFINE(STRUCT_TASK_STRUCT_HAS_SIG, 1, [define if your struct task_struct has sig])
 		 fi
+		 if test "x$ac_cv_linux_sched_struct_task_struct_has_rlim" = "xyes"; then 
+		  AC_DEFINE(STRUCT_TASK_STRUCT_HAS_RLIM, 1, [define if your struct task_struct has rlim])
+		 fi
+		 if test "x$ac_cv_linux_sched_struct_task_struct_has_signal_rlim" = "xyes"; then 
+		  AC_DEFINE(STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM, 1, [define if your struct task_struct has signal->rlim])
+		 fi
                 :
 		fi
 esac
diff --git a/src/afs/LINUX/osi_machdep.h b/src/afs/LINUX/osi_machdep.h
index 278e56a..83f6b1a 100644
--- a/src/afs/LINUX/osi_machdep.h
+++ b/src/afs/LINUX/osi_machdep.h
@@ -47,6 +47,14 @@
 #define SIG_UNLOCK(X) spin_unlock_irq(&X->sig->siglock)
 #endif
 
+#if defined (STRUCT_TASK_STRUCT_HAS_RLIM)
+#define TASK_STRUCT_RLIM rlim
+#elif defined (STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM)
+#define TASK_STRUCT_RLIM signal->rlim
+#else
+#error Not sure what to do about rlim (should be in the Linux task struct somewhere....)
+#endif
+
 
 #define afs_hz HZ
 #include "h/sched.h"
diff --git a/src/afs/LINUX/osi_misc.c b/src/afs/LINUX/osi_misc.c
index 5775e60..51755ad 100644
--- a/src/afs/LINUX/osi_misc.c
+++ b/src/afs/LINUX/osi_misc.c
@@ -138,8 +138,8 @@ osi_rdwr(int rw, struct osi_file *file, caddr_t addrp, size_t asize,
     } else
 	filp->f_pos = offset;
 
-    savelim = current->rlim[RLIMIT_FSIZE].rlim_cur;
-    current->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
+    savelim = current->TASK_STRUCT_RLIM[RLIMIT_FSIZE].rlim_cur;
+    current->TASK_STRUCT_RLIM[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
 
     /* Read/Write the data. */
     TO_USER_SPACE();
@@ -151,7 +151,7 @@ osi_rdwr(int rw, struct osi_file *file, caddr_t addrp, size_t asize,
 	code = asize;
     TO_KERNEL_SPACE();
 
-    current->rlim[RLIMIT_FSIZE].rlim_cur = savelim;
+    current->TASK_STRUCT_RLIM[RLIMIT_FSIZE].rlim_cur = savelim;
 
     if (code >= 0) {
 	*resid = asize - code;
@@ -173,8 +173,8 @@ osi_file_uio_rdwr(struct osi_file *osifile, uio_t * uiop, int rw)
     int count;
     unsigned long savelim;
 
-    savelim = current->rlim[RLIMIT_FSIZE].rlim_cur;
-    current->rlim[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
+    savelim = current->TASK_STRUCT_RLIM[RLIMIT_FSIZE].rlim_cur;
+    current->TASK_STRUCT_RLIM[RLIMIT_FSIZE].rlim_cur = RLIM_INFINITY;
 
     if (uiop->uio_seg == AFS_UIOSYS)
 	TO_USER_SPACE();
@@ -217,7 +217,7 @@ osi_file_uio_rdwr(struct osi_file *osifile, uio_t * uiop, int rw)
     if (uiop->uio_seg == AFS_UIOSYS)
 	TO_KERNEL_SPACE();
 
-    current->rlim[RLIMIT_FSIZE].rlim_cur = savelim;
+    current->TASK_STRUCT_RLIM[RLIMIT_FSIZE].rlim_cur = savelim;
 
     return code;
 }
diff --git a/src/cf/linux-test4.m4 b/src/cf/linux-test4.m4
index 08e0c97..30578b1 100644
--- a/src/cf/linux-test4.m4
+++ b/src/cf/linux-test4.m4
@@ -392,3 +392,33 @@ ac_cv_linux_sched_struct_task_struct_has_sighand=yes,
 ac_cv_linux_sched_struct_task_struct_has_sighand=no)])
 AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_sighand)
 CPPFLAGS="$save_CPPFLAGS"])
+
+AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_RLIM], [
+AC_MSG_CHECKING(for rlim in struct task_struct)
+save_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="-I${LINUX_KERNEL_PATH}/include -I${LINUX_KERNEL_PATH}/include/asm/mach-${SUBARCH} -D__KERNEL__ $CPPFLAGS"
+AC_CACHE_VAL(ac_cv_linux_sched_struct_task_struct_has_rlim,
+[
+AC_TRY_COMPILE(
+[#include <linux/sched.h>],
+[struct task_struct _tsk;
+printf("%d\n", _tsk.rlim);],
+ac_cv_linux_sched_struct_task_struct_has_rlim=yes,
+ac_cv_linux_sched_struct_task_struct_has_rlim=no)])
+AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_rlim)
+CPPFLAGS="$save_CPPFLAGS"])
+
+AC_DEFUN([LINUX_SCHED_STRUCT_TASK_STRUCT_HAS_SIGNAL_RLIM], [
+AC_MSG_CHECKING(for signal->rlim in struct task_struct)
+save_CPPFLAGS="$CPPFLAGS"
+CPPFLAGS="-I${LINUX_KERNEL_PATH}/include -I${LINUX_KERNEL_PATH}/include/asm/mach-${SUBARCH} -D__KERNEL__ $CPPFLAGS"
+AC_CACHE_VAL(ac_cv_linux_sched_struct_task_struct_has_signal_rlim,
+[
+AC_TRY_COMPILE(
+[#include <linux/sched.h>],
+[struct task_struct _tsk;
+printf("%d\n", _tsk.signal->rlim);],
+ac_cv_linux_sched_struct_task_struct_has_signal_rlim=yes,
+ac_cv_linux_sched_struct_task_struct_has_signal_rlim=no)])
+AC_MSG_RESULT($ac_cv_linux_sched_struct_task_struct_has_signal_rlim)
+CPPFLAGS="$save_CPPFLAGS"])