xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set

Browse Source 
Only 3 out of 63 do not.  Renamed the current variant to __set_current_blocked(),
added set_current_blocked() that will exclude unblockable signals, switched
open-coded instances to it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2012-04-27 13:58:59 -04:00
parent edd63a2763
commit 77097ae503
45 changed files with 17 additions and 141 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/sparc/kernel/signal32.c
View File

@@ -32,8 +32,6 @@
#include "sigutil.h"
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
/* This magic should be in g_upper[0] for all upper parts
* to be valid.
*/
@@ -274,7 +272,6 @@ void do_sigreturn32(struct pt_regs *regs)
case 2: set.sig[1] = seta[2] + (((long)seta[3]) << 32);
case 1: set.sig[0] = seta[0] + (((long)seta[1]) << 32);
}
sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
return;
@@ -376,7 +373,6 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
case 2: set.sig[1] = seta.sig[2] + (((long)seta.sig[3]) << 32);
case 1: set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32);
}
sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
return;
segv:

4
arch/sparc/kernel/signal_32.c
View File

@@ -29,8 +29,6 @@
#include "sigutil.h"
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
void *fpqueue, unsigned long *fpqdepth);
extern void fpload(unsigned long *fpregs, unsigned long *fsr);
@@ -130,7 +128,6 @@ asmlinkage void do_sigreturn(struct pt_regs *regs)
if (err)
goto segv_and_exit;
sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
return;
@@ -197,7 +194,6 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs)
goto segv;
}
sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
return;
segv:

4
arch/sparc/kernel/signal_64.c
View File

@@ -38,8 +38,6 @@
#include "systbls.h"
#include "sigutil.h"
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
/* {set, get}context() needed for 64-bit SparcLinux userland. */
asmlinkage void sparc64_set_context(struct pt_regs *regs)
{
@@ -71,7 +69,6 @@ asmlinkage void sparc64_set_context(struct pt_regs *regs)
if (__copy_from_user(&set, &ucp->uc_sigmask, sizeof(sigset_t)))
goto do_sigsegv;
}
sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
}
if (test_thread_flag(TIF_32BIT)) {
@@ -315,7 +312,6 @@ void do_rt_sigreturn(struct pt_regs *regs)
/* Prevent syscall restart. */
pt_regs_clear_syscall(regs);
sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
return;
segv: