Clean up ptrace_setoptions and PT_* constants

diff --git a/arch/alpha/kernel/asm-offsets.c b/arch/alpha/kernel/asm-offsets.c
index c1f42cb25d3bd13d1c81c0dafc0d6178a2966b94..79b9b27166a3d2b52f938646331391f5d538291f 100644 (file)
--- a/arch/alpha/kernel/asm-offsets.c
+++ b/arch/alpha/kernel/asm-offsets.c
@@ -7,6 +7,7 @@
 #include <linux/types.h>
 #include <linux/stddef.h>
 #include <linux/sched.h>
+#include <linux/ptrace.h>
 #include <asm/io.h>
 
 #define DEFINE(sym, val) \

diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index f9934af388ed73ee22bbe204e32644c2874c82c8..c6d707e5bdf33fdd50a142cb5e3447b53df6b2ad 100644 (file)
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -36,6 +36,7 @@
 #include <linux/mc146818rtc.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
+#include <linux/ptrace.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>

diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 234ced527110e4a6f1a990d2e7f056fe0a510de4..bca393dbee668c74edd94f157a18f54928bba398 100644 (file)
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -24,6 +24,7 @@
 #include <linux/interrupt.h>
 #include <linux/highmem.h>
 #include <linux/kallsyms.h>
+#include <linux/ptrace.h>
 
 #ifdef CONFIG_EISA
 #include <linux/ioport.h>

diff --git a/arch/i386/kernel/vm86.c b/arch/i386/kernel/vm86.c
index 269cf00ddf4eb05028665dffd15a0a9661e03627..ea5b776be20242720e0ebc54901a6844c86dbaf8 100644 (file)
--- a/arch/i386/kernel/vm86.c
+++ b/arch/i386/kernel/vm86.c
@@ -40,6 +40,7 @@
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
 #include <linux/highmem.h>
+#include <linux/ptrace.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>

diff --git a/arch/i386/math-emu/fpu_entry.c b/arch/i386/math-emu/fpu_entry.c
index c37a93bea50b4b6213d727e827d62ed0992c15a2..baebe5c08da7522cac347f28cfc1d0c0d7fc35cd 100644 (file)
--- a/arch/i386/math-emu/fpu_entry.c
+++ b/arch/i386/math-emu/fpu_entry.c
@@ -25,6 +25,7 @@
  +---------------------------------------------------------------------------*/
 
 #include <linux/signal.h>
+#include <linux/ptrace.h>
 
 #include <asm/uaccess.h>
 #include <asm/desc.h>

diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c
index 65860c3865a51f61defd586334b9ad05ffd524d6..3fa05f5351b42e48a54a720df6dd7d2427a6a7f3 100644 (file)
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@@ -29,6 +29,7 @@
 #include <linux/string.h>
 #include <linux/linkage.h>
 #include <linux/init.h>
+#include <linux/ptrace.h>
 
 #include <asm/setup.h>
 #include <asm/fpu.h>

diff --git a/arch/m68knommu/kernel/asm-offsets.c b/arch/m68knommu/kernel/asm-offsets.c
index 8c81e421a0301f5f36d6dd11a138be67d3627371..c803fe64e2ce4f2589dddfa7aefae7f2d0274e46 100644 (file)
--- a/arch/m68knommu/kernel/asm-offsets.c
+++ b/arch/m68knommu/kernel/asm-offsets.c
@@ -11,6 +11,7 @@
 #include <linux/stddef.h>
 #include <linux/sched.h>
 #include <linux/kernel_stat.h>
+#include <linux/ptrace.h>
 #include <asm/bootinfo.h>
 #include <asm/irq.h>
 #include <asm/hardirq.h>

diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68knommu/kernel/traps.c
index 45283b564eb839d8dac7b1c2b8ce424b0556f0a1..7373bbf38db600de5db7aef0ac5f70faa6c0e27e 100644 (file)
--- a/arch/m68knommu/kernel/traps.c
+++ b/arch/m68knommu/kernel/traps.c
@@ -27,6 +27,7 @@
 #include <linux/string.h>
 #include <linux/linkage.h>
 #include <linux/init.h>
+#include <linux/ptrace.h>
 
 #include <asm/setup.h>
 #include <asm/fpu.h>

diff --git a/arch/mips/kernel/irixsig.c b/arch/mips/kernel/irixsig.c
index cc687306faccf66fef6b78a907cddea3c0322711..088f746119c65b075280e6141a88eafaf82b6b08 100644 (file)
--- a/arch/mips/kernel/irixsig.c
+++ b/arch/mips/kernel/irixsig.c
@@ -12,6 +12,7 @@
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
 #include <linux/time.h>
+#include <linux/ptrace.h>
 
 #include <asm/ptrace.h>
 #include <asm/uaccess.h>

diff --git a/arch/mips/kernel/sysmips.c b/arch/mips/kernel/sysmips.c
index f8664242b8d7d4575705ddd5514799f8282e7eea..5a21cd0083e95187889b522c0bb912e7252636d9 100644 (file)
--- a/arch/mips/kernel/sysmips.c
+++ b/arch/mips/kernel/sysmips.c
@@ -16,6 +16,7 @@
 #include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/utsname.h>
+#include <linux/ptrace.h>
 
 #include <asm/cachectl.h>
 #include <asm/pgalloc.h>

diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index afe8ae65540f0dac44c138ceddc109a4093c4111..c22c789091e15ea8e69be150b82e45363e4d38dd 100644 (file)
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -9,6 +9,7 @@
 #include <linux/file.h>
 #include <linux/smp_lock.h>
 #include <linux/slab.h>
+#include <linux/ptrace.h>
 #include <asm/errno.h>
 #include <asm/uaccess.h>
 

diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 3e2d0013d34007b092e94613a4e1df37fa0be8f7..4d6a5cf7dd21d50d09c2b8d8ad5cbc7955f9068c 100644 (file)
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -53,6 +53,7 @@
 #include <linux/binfmts.h>
 #include <linux/namei.h>
 #include <linux/vfs.h>
+#include <linux/ptrace.h>
 
 #include <asm/types.h>
 #include <asm/uaccess.h>

diff --git a/arch/ppc64/kernel/process.c b/arch/ppc64/kernel/process.c
index c81d2cd0277276705940199a9aa97de98fb5e4a4..3b40722bd7033a716c6f6f5e8343687bdfdb8dad 100644 (file)
--- a/arch/ppc64/kernel/process.c
+++ b/arch/ppc64/kernel/process.c
@@ -31,6 +31,7 @@
 #include <linux/init.h>
 #include <linux/init_task.h>
 #include <linux/prctl.h>
+#include <linux/ptrace.h>
 
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>

diff --git a/arch/ppc64/kernel/sys_ppc32.c b/arch/ppc64/kernel/sys_ppc32.c
index b8a0424c0e6cc0723be48b666720f9b5f7e4eaea..b5ddbaac34deefbfbaec17c7082a83d32c59a3e1 100644 (file)
--- a/arch/ppc64/kernel/sys_ppc32.c
+++ b/arch/ppc64/kernel/sys_ppc32.c
@@ -58,6 +58,7 @@
 #include <linux/dnotify.h>
 #include <linux/security.h>
 #include <linux/compat.h>
+#include <linux/ptrace.h>
 
 #include <asm/types.h>
 #include <asm/ipc.h>

diff --git a/arch/s390x/kernel/linux32.c b/arch/s390x/kernel/linux32.c
index fce07ff5aae3d414d4118f0cc4a951041c88f922..fc87ddddf6874718fc04aec84a6197cf7c38e26d 100644 (file)
--- a/arch/s390x/kernel/linux32.c
+++ b/arch/s390x/kernel/linux32.c
@@ -58,6 +58,7 @@
 #include <linux/binfmts.h>
 #include <linux/compat.h>
 #include <linux/vfs.h>
+#include <linux/ptrace.h>
 
 #include <asm/types.h>
 #include <asm/ipc.h>

diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 62fdca125d9d1bf217a294356130dec0d6303a17..7f3653647f6b99d2339a98004d4bac914131eb6c 100644 (file)
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -15,6 +15,7 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/a.out.h>
+#include <linux/ptrace.h>
 
 #include <asm/io.h>
 #include <asm/uaccess.h>

diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c
index 1f2fb2b35849d30fb20719dc9dfcccc1e5d86631..eadc30630cd83211c3e130e417a70019eb3266f7 100644 (file)
--- a/arch/sparc64/kernel/sys_sparc32.c
+++ b/arch/sparc64/kernel/sys_sparc32.c
@@ -54,6 +54,7 @@
 #include <linux/compat.h>
 #include <linux/vfs.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/ptrace.h>
 
 #include <asm/types.h>
 #include <asm/ipc.h>

diff --git a/arch/um/kernel/exec_kern.c b/arch/um/kernel/exec_kern.c
index eaae628fa90258b142ea1efc79e807ac0d9ff0f1..a6be6b542b4aec56fde051585fae06d4c3787983 100644 (file)
--- a/arch/um/kernel/exec_kern.c
+++ b/arch/um/kernel/exec_kern.c
@@ -5,6 +5,7 @@
 
 #include "linux/slab.h"
 #include "linux/smp_lock.h"
+#include "linux/ptrace.h"
 #include "asm/ptrace.h"
 #include "asm/pgtable.h"
 #include "asm/tlbflush.h"

diff --git a/arch/um/kernel/signal_kern.c b/arch/um/kernel/signal_kern.c
index cc9ab3416c9ae84514a0fa659f6c8e0848e12019..6e13847edb7584ed12a05ab644390993aa1ba848 100644 (file)
--- a/arch/um/kernel/signal_kern.c
+++ b/arch/um/kernel/signal_kern.c
@@ -14,6 +14,7 @@
 #include "linux/slab.h"
 #include "linux/tty.h"
 #include "linux/binfmts.h"
+#include "linux/ptrace.h"
 #include "asm/signal.h"
 #include "asm/uaccess.h"
 #include "asm/unistd.h"

diff --git a/arch/um/kernel/skas/process_kern.c b/arch/um/kernel/skas/process_kern.c
index 01ccfb478ebde77be272d6b2704fdc5474fbf69e..e0ea56be1daeeb7af8327a170c254c8584cb9403 100644 (file)
--- a/arch/um/kernel/skas/process_kern.c
+++ b/arch/um/kernel/skas/process_kern.c
@@ -5,6 +5,7 @@
 
 #include "linux/sched.h"
 #include "linux/slab.h"
+#include "linux/ptrace.h"
 #include "kern_util.h"
 #include "time_user.h"
 #include "signal_user.h"

diff --git a/arch/um/kernel/tt/process_kern.c b/arch/um/kernel/tt/process_kern.c
index 6e8bb62bf77be891b8d04bd24e99b8192a4212cd..b4a855f44adc01645cd5149f3fcfe8fea2b5297d 100644 (file)
--- a/arch/um/kernel/tt/process_kern.c
+++ b/arch/um/kernel/tt/process_kern.c
@@ -7,6 +7,7 @@
 #include "linux/signal.h"
 #include "linux/kernel.h"
 #include "linux/interrupt.h"
+#include "linux/ptrace.h"
 #include "asm/system.h"
 #include "asm/pgalloc.h"
 #include "asm/ptrace.h"

diff --git a/arch/um/kernel/tt/syscall_kern.c b/arch/um/kernel/tt/syscall_kern.c
index 7401449b1a2e147513ef5847eeb016d05057d3f4..1b71f9ce51843193d9aa33be1a1b8ff07f043ab8 100644 (file)
--- a/arch/um/kernel/tt/syscall_kern.c
+++ b/arch/um/kernel/tt/syscall_kern.c
@@ -6,6 +6,7 @@
 #include "linux/types.h"
 #include "linux/utime.h"
 #include "linux/sys.h"
+#include "linux/ptrace.h"
 #include "asm/unistd.h"
 #include "asm/ptrace.h"
 #include "asm/uaccess.h"

diff --git a/arch/v850/kernel/asm-consts.c b/arch/v850/kernel/asm-consts.c
index 44e042344612f310a1a5bc3bbe5e9e345e3954fa..666930d9cea658d022c0241c0af797c8da8a4f81 100644 (file)
--- a/arch/v850/kernel/asm-consts.c
+++ b/arch/v850/kernel/asm-consts.c
@@ -11,6 +11,7 @@
 #include <linux/stddef.h>
 #include <linux/sched.h>
 #include <linux/kernel_stat.h>
+#include <linux/ptrace.h>
 #include <asm/irq.h>
 #include <asm/hardirq.h>
 #include <asm/errno.h>

diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c
index 3849c0ad3ec096757eaceb69521ded69ffc8a555..a7d36b41c5934ea025134eb273bbb74c6ec96186 100644 (file)
--- a/arch/x86_64/ia32/sys_ia32.c
+++ b/arch/x86_64/ia32/sys_ia32.c
@@ -59,6 +59,7 @@
 #include <linux/aio_abi.h>
 #include <linux/compat.h>
 #include <linux/vfs.h>
+#include <linux/ptrace.h>
 #include <asm/mman.h>
 #include <asm/types.h>
 #include <asm/uaccess.h>

diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index a369757dc78cd281f7c1a845e1ed965a579219e9..91d24995dfcfce46f6140ed6ac547bd7b230c658 100644 (file)
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -24,6 +24,7 @@
 #include <linux/binfmts.h>
 #include <linux/personality.h>
 #include <linux/init.h>
+#include <linux/ptrace.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 164fb87ea678aa1a85d5b22dc633260006dc1cb1..cfb54c010ef91fc16f779a1a7350f27b46df211e 100644 (file)
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -31,6 +31,7 @@
 #include <linux/kallsyms.h>
 #include <linux/mount.h>
 #include <linux/security.h>
+#include <linux/ptrace.h>
 
 /*
  * For hysterical raisins we keep the same inumbers as in the old procfs.

diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 706b420fb5c9cc9a43707576af4b53524eea30f2..5d44a953f42347dcb12bf48fccbb5368b1fad9db 100644 (file)
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -3,8 +3,6 @@
 /* ptrace.h */
 /* structs and defines to help the user use the ptrace system call. */
 
-#include <linux/compiler.h>
-
 /* has the defines to get at the registers. */
 
 #define PTRACE_TRACEME            0
@@ -38,6 +36,8 @@
 #define PTRACE_O_TRACEVFORKDONE        0x00000020
 #define PTRACE_O_TRACEEXIT     0x00000040
 
+#define PTRACE_O_MASK          0x0000007f
+
 /* Wait extended result codes for the above trace options.  */
 #define PTRACE_EVENT_FORK      1
 #define PTRACE_EVENT_VFORK     2
@@ -47,7 +47,27 @@
 #define PTRACE_EVENT_EXIT      6
 
 #include <asm/ptrace.h>
-#include <linux/sched.h>
+
+#ifdef __KERNEL__
+/*
+ * Ptrace flags
+ */
+
+#define PT_PTRACED     0x00000001
+#define PT_DTRACE      0x00000002      /* delayed trace (used on m68k, i386) */
+#define PT_TRACESYSGOOD        0x00000004
+#define PT_PTRACE_CAP  0x00000008      /* ptracer can follow suid-exec */
+#define PT_TRACE_FORK  0x00000010
+#define PT_TRACE_VFORK 0x00000020
+#define PT_TRACE_CLONE 0x00000040
+#define PT_TRACE_EXEC  0x00000080
+#define PT_TRACE_VFORK_DONE    0x00000100
+#define PT_TRACE_EXIT  0x00000200
+
+#define PT_TRACE_MASK  0x000003f4
+
+#include <linux/compiler.h>            /* For unlikely.  */
+#include <linux/sched.h>               /* For struct task_struct.  */
 
 extern int ptrace_readdata(struct task_struct *tsk, unsigned long src, char *dst, int len);
 extern int ptrace_writedata(struct task_struct *tsk, char * src, unsigned long dst, int len);
@@ -58,11 +78,11 @@ extern int ptrace_check_attach(struct task_struct *task, int kill);
 extern int ptrace_request(struct task_struct *child, long request, long addr, long data);
 extern void ptrace_notify(int exit_code);
 extern void __ptrace_link(struct task_struct *child,
-                               struct task_struct *new_parent);
+                         struct task_struct *new_parent);
 extern void __ptrace_unlink(struct task_struct *child);
 
 static inline void ptrace_link(struct task_struct *child,
-                               struct task_struct *new_parent)
+                              struct task_struct *new_parent)
 {
        if (unlikely(child->ptrace))
                __ptrace_link(child, new_parent);
@@ -72,5 +92,6 @@ static inline void ptrace_unlink(struct task_struct *child)
        if (unlikely(child->ptrace))
                __ptrace_unlink(child);
 }
+#endif
 
 #endif

diff --git a/include/linux/sched.h b/include/linux/sched.h
index d3cd5e31e8f95f3de945c4fdc18cb9da039e1530..cfa6fd4d86dacce61a5367a6412c720b7aba8cf0 100644 (file)
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -446,21 +446,6 @@ do { if (atomic_dec_and_test(&(tsk)->usage)) __put_task_struct(tsk); } while(0)
 #define PF_FSTRANS     0x00020000      /* inside a filesystem transaction */
 #define PF_KSWAPD      0x00040000      /* I am kswapd */
 
-/*
- * Ptrace flags
- */
-
-#define PT_PTRACED     0x00000001
-#define PT_DTRACE      0x00000002      /* delayed trace (used on m68k, i386) */
-#define PT_TRACESYSGOOD        0x00000004
-#define PT_PTRACE_CAP  0x00000008      /* ptracer can follow suid-exec */
-#define PT_TRACE_FORK  0x00000010
-#define PT_TRACE_VFORK 0x00000020
-#define PT_TRACE_CLONE 0x00000040
-#define PT_TRACE_EXEC  0x00000080
-#define PT_TRACE_VFORK_DONE    0x00000100
-#define PT_TRACE_EXIT  0x00000200
-
 #if CONFIG_SMP
 extern void set_cpus_allowed(task_t *p, unsigned long new_mask);
 #else

diff --git a/kernel/exit.c b/kernel/exit.c
index 0523eb305c1777ce9b2c31393068a18a102c5678..58546ab8fe546cb0b1d40eab9a578693d6aeb095 100644 (file)
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -694,10 +694,8 @@ static void exit_notify(struct task_struct *tsk)
         * only has special meaning to our real parent.
         */
        if (tsk->exit_signal != -1) {
-               if (tsk->parent == tsk->real_parent)
-                       do_notify_parent(tsk, tsk->exit_signal);
-               else
-                       do_notify_parent(tsk, SIGCHLD);
+               int signal = tsk->parent == tsk->real_parent ? tsk->exit_signal : SIGCHLD;
+               do_notify_parent(tsk, signal);
        }
 
        tsk->state = TASK_ZOMBIE;

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index f67675f3d9d3bdfe0cc90660a6517655278caf49..287b81b65c348aeaca1e644d769d33fd20afcb35 100644 (file)
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -252,49 +252,30 @@ int ptrace_writedata(struct task_struct *tsk, char * src, unsigned long dst, int
 
 static int ptrace_setoptions(struct task_struct *child, long data)
 {
+       child->ptrace &= ~PT_TRACE_MASK;
+
        if (data & PTRACE_O_TRACESYSGOOD)
                child->ptrace |= PT_TRACESYSGOOD;
-       else
-               child->ptrace &= ~PT_TRACESYSGOOD;
 
        if (data & PTRACE_O_TRACEFORK)
                child->ptrace |= PT_TRACE_FORK;
-       else
-               child->ptrace &= ~PT_TRACE_FORK;
 
        if (data & PTRACE_O_TRACEVFORK)
                child->ptrace |= PT_TRACE_VFORK;
-       else
-               child->ptrace &= ~PT_TRACE_VFORK;
 
        if (data & PTRACE_O_TRACECLONE)
                child->ptrace |= PT_TRACE_CLONE;
-       else
-               child->ptrace &= ~PT_TRACE_CLONE;
 
        if (data & PTRACE_O_TRACEEXEC)
                child->ptrace |= PT_TRACE_EXEC;
-       else
-               child->ptrace &= ~PT_TRACE_EXEC;
 
        if (data & PTRACE_O_TRACEVFORKDONE)
                child->ptrace |= PT_TRACE_VFORK_DONE;
-       else
-               child->ptrace &= ~PT_TRACE_VFORK_DONE;
 
        if (data & PTRACE_O_TRACEEXIT)
                child->ptrace |= PT_TRACE_EXIT;
-       else
-               child->ptrace &= ~PT_TRACE_EXIT;
-
-       if ((data & (PTRACE_O_TRACESYSGOOD | PTRACE_O_TRACEFORK
-                   | PTRACE_O_TRACEVFORK | PTRACE_O_TRACECLONE
-                   | PTRACE_O_TRACEEXEC | PTRACE_O_TRACEEXIT
-                   | PTRACE_O_TRACEVFORKDONE))
-           != data)
-               return -EINVAL;
 
-       return 0;
+       return (data & ~PTRACE_O_MASK) ? -EINVAL : 0;
 }
 
 static int ptrace_getsiginfo(struct task_struct *child, long data)

diff --git a/kernel/signal.c b/kernel/signal.c
index d0d09cfbe8632b50a32f38599c6aa02990f2874a..b8fc6a05c03157f9990329fe04599f518f4890df 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -19,6 +19,7 @@
 #include <linux/tty.h>
 #include <linux/binfmts.h>
 #include <linux/security.h>
+#include <linux/ptrace.h>
 #include <asm/param.h>
 #include <asm/uaccess.h>
 #include <asm/siginfo.h>

diff --git a/security/capability.c b/security/capability.c
index 5909732acdfc2efb715130c77e86b6690f13b2aa..09882ecc997d0010fd07000b158a184e2944a525 100644 (file)
--- a/security/capability.c
+++ b/security/capability.c
@@ -18,6 +18,7 @@
 #include <linux/smp_lock.h>
 #include <linux/skbuff.h>
 #include <linux/netlink.h>
+#include <linux/ptrace.h>
 
 int cap_capable (struct task_struct *tsk, int cap)
 {