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Date: Sat, 11 Apr 2015 22:48:03 +0200
From: Richard Weinberger <richard@....at>
To: linux-arch@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, rth@...ddle.net,
ink@...assic.park.msu.ru, mattst88@...il.com, vgupta@...opsys.com,
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rkuo@...eaurora.org, tony.luck@...el.com, fenghua.yu@...el.com,
geert@...ux-m68k.org, james.hogan@...tec.com, monstr@...str.eu,
ralf@...ux-mips.org, yasutake.koichi@...panasonic.com,
lftan@...era.com, jonas@...thpole.se, jejb@...isc-linux.org,
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heiko.carstens@...ibm.com, liqin.linux@...il.com,
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jdike@...toit.com, akpm@...ux-foundation.org, oleg@...hat.com,
hch@...radead.org, viro@...iv.linux.org.uk,
torvalds@...ux-foundation.org, Richard Weinberger <richard@....at>
Subject: [PATCH 24/24] Remove rest of exec domains.
It is gone from all archs, now we can remove
the final bits.
Signed-off-by: Richard Weinberger <richard@....at>
---
include/linux/personality.h | 40 +---------------------------------------
include/linux/sched.h | 6 ------
kernel/exec_domain.c | 37 -------------------------------------
3 files changed, 1 insertion(+), 82 deletions(-)
diff --git a/include/linux/personality.h b/include/linux/personality.h
index 646c0a7..aeb7892 100644
--- a/include/linux/personality.h
+++ b/include/linux/personality.h
@@ -3,52 +3,14 @@
#include <uapi/linux/personality.h>
-
-/*
- * Handling of different ABIs (personalities).
- */
-
-struct exec_domain;
-struct pt_regs;
-
-extern int register_exec_domain(struct exec_domain *);
-extern int unregister_exec_domain(struct exec_domain *);
-extern int __set_personality(unsigned int);
-
-
-/*
- * Description of an execution domain.
- *
- * The first two members are refernced from assembly source
- * and should stay where they are unless explicitly needed.
- */
-typedef void (*handler_t)(int, struct pt_regs *);
-
-struct exec_domain {
- const char *name; /* name of the execdomain */
- handler_t handler; /* handler for syscalls */
- unsigned char pers_low; /* lowest personality */
- unsigned char pers_high; /* highest personality */
- unsigned long *signal_map; /* signal mapping */
- unsigned long *signal_invmap; /* reverse signal mapping */
- struct map_segment *err_map; /* error mapping */
- struct map_segment *socktype_map; /* socket type mapping */
- struct map_segment *sockopt_map; /* socket option mapping */
- struct map_segment *af_map; /* address family mapping */
- struct module *module; /* module context of the ed. */
- struct exec_domain *next; /* linked list (internal) */
-};
-
/*
* Return the base personality without flags.
*/
#define personality(pers) (pers & PER_MASK)
-
/*
* Change personality of the currently running process.
*/
-#define set_personality(pers) \
- ((current->personality == (pers)) ? 0 : __set_personality(pers))
+#define set_personality(pers) (current->personality = (pers))
#endif /* _LINUX_PERSONALITY_H */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index a419b65..14d9117 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -125,7 +125,6 @@ struct sched_attr {
u64 sched_period;
};
-struct exec_domain;
struct futex_pi_state;
struct robust_list_head;
struct bio_list;
@@ -2288,11 +2287,6 @@ extern void set_curr_task(int cpu, struct task_struct *p);
void yield(void);
-/*
- * The default (Linux) execution domain.
- */
-extern struct exec_domain default_exec_domain;
-
union thread_union {
struct thread_info thread_info;
unsigned long stack[THREAD_SIZE/sizeof(long)];
diff --git a/kernel/exec_domain.c b/kernel/exec_domain.c
index b2fb57d..6873bb3 100644
--- a/kernel/exec_domain.c
+++ b/kernel/exec_domain.c
@@ -20,43 +20,6 @@
#include <linux/types.h>
#include <linux/fs_struct.h>
-static void default_handler(int, struct pt_regs *);
-static unsigned long ident_map[32] = {
- 0, 1, 2, 3, 4, 5, 6, 7,
- 8, 9, 10, 11, 12, 13, 14, 15,
- 16, 17, 18, 19, 20, 21, 22, 23,
- 24, 25, 26, 27, 28, 29, 30, 31
-};
-
-struct exec_domain default_exec_domain = {
- .name = "Linux", /* name */
- .handler = default_handler, /* lcall7 causes a seg fault. */
- .pers_low = 0, /* PER_LINUX personality. */
- .pers_high = 0, /* PER_LINUX personality. */
- .signal_map = ident_map, /* Identity map signals. */
- .signal_invmap = ident_map, /* - both ways. */
-};
-
-
-static void
-default_handler(int segment, struct pt_regs *regp)
-{
- set_personality(0);
-
- if (current_thread_info()->exec_domain->handler != default_handler)
- current_thread_info()->exec_domain->handler(segment, regp);
- else
- send_sig(SIGSEGV, current, 1);
-}
-
-int __set_personality(unsigned int personality)
-{
- current->personality = personality;
-
- return 0;
-}
-EXPORT_SYMBOL(__set_personality);
-
#ifdef CONFIG_PROC_FS
static int execdomains_proc_show(struct seq_file *m, void *v)
{
--
1.8.4.5
--
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