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Merge branch 'akpm' (incoming from Andrew)

Browse source 
Merge third batch of fixes from Andrew Morton:
 "Most of the rest.  I still have two large patchsets against AIO and
  IPC, but they're a bit stuck behind other trees and I'm about to
  vanish for six days.

   - random fixlets
   - inotify
   - more of the MM queue
   - show_stack() cleanups
   - DMI update
   - kthread/workqueue things
   - compat cleanups
   - epoll udpates
   - binfmt updates
   - nilfs2
   - hfs
   - hfsplus
   - ptrace
   - kmod
   - coredump
   - kexec
   - rbtree
   - pids
   - pidns
   - pps
   - semaphore tweaks
   - some w1 patches
   - relay updates
   - core Kconfig changes
   - sysrq tweaks"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (109 commits)
  Documentation/sysrq: fix inconstistent help message of sysrq key
  ethernet/emac/sysrq: fix inconstistent help message of sysrq key
  sparc/sysrq: fix inconstistent help message of sysrq key
  powerpc/xmon/sysrq: fix inconstistent help message of sysrq key
  ARM/etm/sysrq: fix inconstistent help message of sysrq key
  power/sysrq: fix inconstistent help message of sysrq key
  kgdb/sysrq: fix inconstistent help message of sysrq key
  lib/decompress.c: fix initconst
  notifier-error-inject: fix module names in Kconfig
  kernel/sys.c: make prctl(PR_SET_MM) generally available
  UAPI: remove empty Kbuild files
  menuconfig: print more info for symbol without prompts
  init/Kconfig: re-order CONFIG_EXPERT options to fix menuconfig display
  kconfig menu: move Virtualization drivers near other virtualization options
  Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
  relay: use macro PAGE_ALIGN instead of FIX_SIZE
  kernel/relay.c: move FIX_SIZE macro into relay.c
  kernel/relay.c: remove unused function argument actor
  drivers/w1/slaves/w1_ds2760.c: fix the error handling in w1_ds2760_add_slave()
  drivers/w1/slaves/w1_ds2781.c: fix the error handling in w1_ds2781_add_slave()
  ...
This commit is contained in:
Linus Torvalds 2013-04-30 17:37:43 -07:00
commit 5f56886521
214 changed files with 2825 additions and 1695 deletions
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20
Documentation/sysrq.txt
View file

@ -129,9 +129,9 @@ On all - write a character to /proc/sysrq-trigger. e.g.:
* Okay, so what can I use them for?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Well, un'R'aw is very handy when your X server or a svgalib program crashes.
Well, unraw(r) is very handy when your X server or a svgalib program crashes.
sa'K' (Secure Access Key) is useful when you want to be sure there is no
sak(k) (Secure Access Key) is useful when you want to be sure there is no
trojan program running at console which could grab your password
when you would try to login. It will kill all programs on given console,
thus letting you make sure that the login prompt you see is actually
@ -143,20 +143,20 @@ IMPORTANT: such. :IMPORTANT
useful when you want to exit a program that will not let you switch consoles.
(For example, X or a svgalib program.)
re'B'oot is good when you're unable to shut down. But you should also 'S'ync
and 'U'mount first.
reboot(b) is good when you're unable to shut down. But you should also
sync(s) and umount(u) first.
'C'rash can be used to manually trigger a crashdump when the system is hung.
crash(c) can be used to manually trigger a crashdump when the system is hung.
Note that this just triggers a crash if there is no dump mechanism available.
'S'ync is great when your system is locked up, it allows you to sync your
sync(s) is great when your system is locked up, it allows you to sync your
disks and will certainly lessen the chance of data loss and fscking. Note
that the sync hasn't taken place until you see the "OK" and "Done" appear
on the screen. (If the kernel is really in strife, you may not ever get the
OK or Done message...)
'U'mount is basically useful in the same ways as 'S'ync. I generally 'S'ync,
'U'mount, then re'B'oot when my system locks. It's saved me many a fsck.
umount(u) is basically useful in the same ways as sync(s). I generally sync(s),
umount(u), then reboot(b) when my system locks. It's saved me many a fsck.
Again, the unmount (remount read-only) hasn't taken place until you see the
"OK" and "Done" message appear on the screen.
@ -165,11 +165,11 @@ kernel messages you do not want to see. Selecting '0' will prevent all but
the most urgent kernel messages from reaching your console. (They will
still be logged if syslogd/klogd are alive, though.)
t'E'rm and k'I'll are useful if you have some sort of runaway process you
term(e) and kill(i) are useful if you have some sort of runaway process you
are unable to kill any other way, especially if it's spawning other
processes.
"'J'ust thaw it" is useful if your system becomes unresponsive due to a frozen
"just thaw it(j)" is useful if your system becomes unresponsive due to a frozen
(probably root) filesystem via the FIFREEZE ioctl.
* Sometimes SysRq seems to get 'stuck' after using it, what can I do?

1
arch/alpha/kernel/process.c
View file

@ -175,6 +175,7 @@ machine_power_off(void)
void
show_regs(struct pt_regs *regs)
{
show_regs_print_info(KERN_DEFAULT);
dik_show_regs(regs, NULL);
}

7
arch/alpha/kernel/traps.c
View file

@ -169,13 +169,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
dik_show_trace(sp);
}
void dump_stack(void)
{
show_stack(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
void
die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15)
{

7
arch/arc/kernel/stacktrace.c
View file

@ -220,13 +220,6 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
show_stacktrace(tsk, NULL);
}
/* Expected by Rest of kernel code */
void dump_stack(void)
{
show_stacktrace(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
/* Another API expected by schedular, shows up in "ps" as Wait Channel
* Ofcourse just returning schedule( ) would be pointless so unwind until
* the function is not in schedular code

3
arch/arc/kernel/troubleshoot.c
View file

@ -71,7 +71,7 @@ void print_task_path_n_nm(struct task_struct *tsk, char *buf)
}
done:
pr_info("%s, TGID %u\n", path_nm, tsk->tgid);
pr_info("Path: %s\n", path_nm);
}
EXPORT_SYMBOL(print_task_path_n_nm);
@ -163,6 +163,7 @@ void show_regs(struct pt_regs *regs)
return;
print_task_path_n_nm(tsk, buf);
show_regs_print_info(KERN_INFO);
if (current->thread.cause_code)
show_ecr_verbose(regs);

2
arch/arm/kernel/etm.c
View file

@ -254,7 +254,7 @@ static void sysrq_etm_dump(int key)
static struct sysrq_key_op sysrq_etm_op = {
.handler = sysrq_etm_dump,
.help_msg = "ETM buffer dump",
.help_msg = "etm-buffer-dump(v)",
.action_msg = "etm",
};

8
arch/arm/kernel/process.c
View file

@ -225,11 +225,8 @@ void __show_regs(struct pt_regs *regs)
unsigned long flags;
char buf[64];
printk("CPU: %d %s (%s %.*s)\n",
raw_smp_processor_id(), print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
show_regs_print_info(KERN_DEFAULT);
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("LR is at %s\n", regs->ARM_lr);
printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n"
@ -284,7 +281,6 @@ void __show_regs(struct pt_regs *regs)
void show_regs(struct pt_regs * regs)
{
printk("\n");
printk("Pid: %d, comm: %20s\n", task_pid_nr(current), current->comm);
__show_regs(regs);
dump_stack();
}

7
arch/arm/kernel/traps.c
View file

@ -204,13 +204,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
}
#endif
void dump_stack(void)
{
dump_backtrace(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
void show_stack(struct task_struct *tsk, unsigned long *sp)
{
dump_backtrace(NULL, tsk);

7
arch/arm64/kernel/process.c
View file

@ -145,11 +145,7 @@ void __show_regs(struct pt_regs *regs)
{
int i;
printk("CPU: %d %s (%s %.*s)\n",
raw_smp_processor_id(), print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
show_regs_print_info(KERN_DEFAULT);
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("LR is at %s\n", regs->regs[30]);
printk("pc : [<%016llx>] lr : [<%016llx>] pstate: %08llx\n",
@ -166,7 +162,6 @@ void __show_regs(struct pt_regs *regs)
void show_regs(struct pt_regs * regs)
{
printk("\n");
printk("Pid: %d, comm: %20s\n", task_pid_nr(current), current->comm);
__show_regs(regs);
}

7
arch/arm64/kernel/traps.c
View file

@ -167,13 +167,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
}
}
void dump_stack(void)
{
dump_backtrace(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
void show_stack(struct task_struct *tsk, unsigned long *sp)
{
dump_backtrace(NULL, tsk);

13
arch/avr32/kernel/process.c
View file

@ -204,14 +204,6 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
show_stack_log_lvl(tsk, (unsigned long)stack, NULL, "");
}
void dump_stack(void)
{
unsigned long stack;
show_trace_log_lvl(current, &stack, NULL, "");
}
EXPORT_SYMBOL(dump_stack);
static const char *cpu_modes[] = {
"Application", "Supervisor", "Interrupt level 0", "Interrupt level 1",
"Interrupt level 2", "Interrupt level 3", "Exception", "NMI"
@ -223,6 +215,8 @@ void show_regs_log_lvl(struct pt_regs *regs, const char *log_lvl)
unsigned long lr = regs->lr;
unsigned long mode = (regs->sr & MODE_MASK) >> MODE_SHIFT;
show_regs_print_info(log_lvl);
if (!user_mode(regs)) {
sp = (unsigned long)regs + FRAME_SIZE_FULL;
@ -260,9 +254,6 @@ void show_regs_log_lvl(struct pt_regs *regs, const char *log_lvl)
regs->sr & SR_I0M ? '0' : '.',
regs->sr & SR_GM ? 'G' : 'g');
printk("%sCPU Mode: %s\n", log_lvl, cpu_modes[mode]);
printk("%sProcess: %s [%d] (task: %p thread: %p)\n",
log_lvl, current->comm, current->pid, current,
task_thread_info(current));
}
void show_regs(struct pt_regs *regs)

1
arch/blackfin/kernel/dumpstack.c
View file

@ -168,6 +168,7 @@ void dump_stack(void)
#endif
trace_buffer_save(tflags);
dump_bfin_trace_buffer();
dump_stack_print_info(KERN_DEFAULT);
show_stack(current, &stack);
trace_buffer_restore(tflags);
}

2
arch/blackfin/kernel/trace.c
View file

@ -853,6 +853,8 @@ void show_regs(struct pt_regs *fp)
unsigned char in_atomic = (bfin_read_IPEND() & 0x10) || in_atomic();
pr_notice("\n");
show_regs_print_info(KERN_NOTICE);
if (CPUID != bfin_cpuid())
pr_notice("Compiled for cpu family 0x%04x (Rev %d), "
"but running on:0x%04x (Rev %d)\n",

10
arch/c6x/kernel/traps.c
View file

@ -31,6 +31,7 @@ void __init trap_init(void)
void show_regs(struct pt_regs *regs)
{
pr_err("\n");
show_regs_print_info(KERN_ERR);
pr_err("PC: %08lx SP: %08lx\n", regs->pc, regs->sp);
pr_err("Status: %08lx ORIG_A4: %08lx\n", regs->csr, regs->orig_a4);
pr_err("A0: %08lx B0: %08lx\n", regs->a0, regs->b0);
@ -67,15 +68,6 @@ void show_regs(struct pt_regs *regs)
pr_err("A31: %08lx B31: %08lx\n", regs->a31, regs->b31);
}
void dump_stack(void)
{
unsigned long stack;
show_stack(current, &stack);
}
EXPORT_SYMBOL(dump_stack);
void die(char *str, struct pt_regs *fp, int nr)
{
console_verbose();

3
arch/cris/arch-v10/kernel/process.c
View file

@ -176,6 +176,9 @@ unsigned long get_wchan(struct task_struct *p)
void show_regs(struct pt_regs * regs)
{
unsigned long usp = rdusp();
show_regs_print_info(KERN_DEFAULT);
printk("IRP: %08lx SRP: %08lx DCCR: %08lx USP: %08lx MOF: %08lx\n",
regs->irp, regs->srp, regs->dccr, usp, regs->mof );
printk(" r0: %08lx r1: %08lx r2: %08lx r3: %08lx\n",

3
arch/cris/arch-v32/kernel/process.c
View file

@ -164,6 +164,9 @@ get_wchan(struct task_struct *p)
void show_regs(struct pt_regs * regs)
{
unsigned long usp = rdusp();
show_regs_print_info(KERN_DEFAULT);
printk("ERP: %08lx SRP: %08lx CCS: %08lx USP: %08lx MOF: %08lx\n",
regs->erp, regs->srp, regs->ccs, usp, regs->mof);

7
arch/cris/kernel/traps.c
View file

@ -146,13 +146,6 @@ show_stack(void)
}
#endif
void
dump_stack(void)
{
show_stack(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
void
set_nmi_handler(void (*handler)(struct pt_regs *))
{

14
arch/frv/kernel/traps.c
View file

@ -466,17 +466,6 @@ asmlinkage void compound_exception(unsigned long esfr1,
BUG();
} /* end compound_exception() */
/*****************************************************************************/
/*
* The architecture-independent backtrace generator
*/
void dump_stack(void)
{
show_stack(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
void show_stack(struct task_struct *task, unsigned long *sp)
{
}
@ -508,6 +497,7 @@ void show_regs(struct pt_regs *regs)
int loop;
printk("\n");
show_regs_print_info(KERN_DEFAULT);
printk("Frame: @%08lx [%s]\n",
(unsigned long) regs,
@ -522,8 +512,6 @@ void show_regs(struct pt_regs *regs)
else
printk(" | ");
}
printk("Process %s (pid: %d)\n", current->comm, current->pid);
}
void die_if_kernel(const char *str, ...)

2
arch/h8300/kernel/process.c
View file

@ -83,6 +83,8 @@ void machine_power_off(void)
void show_regs(struct pt_regs * regs)
{
show_regs_print_info(KERN_DEFAULT);
printk("\nPC: %08lx Status: %02x",
regs->pc, regs->ccr);
printk("\nORIG_ER0: %08lx ER0: %08lx ER1: %08lx",

7
arch/h8300/kernel/traps.c
View file

@ -164,10 +164,3 @@ void show_trace_task(struct task_struct *tsk)
{
show_stack(tsk,(unsigned long *)tsk->thread.esp0);
}
void dump_stack(void)
{
show_stack(NULL,NULL);
}
EXPORT_SYMBOL(dump_stack);

8
arch/hexagon/kernel/traps.c
View file

@ -191,14 +191,6 @@ void show_stack(struct task_struct *task, unsigned long *fp)
do_show_stack(task, fp, 0);
}
void dump_stack(void)
{
unsigned long *fp;
asm("%0 = r30" : "=r" (fp));
show_stack(current, fp);
}
EXPORT_SYMBOL(dump_stack);
int die(const char *str, struct pt_regs *regs, long err)
{
static struct {

2
arch/hexagon/kernel/vm_events.c
View file

@ -33,6 +33,8 @@
*/
void show_regs(struct pt_regs *regs)
{
show_regs_print_info(KERN_EMERG);
printk(KERN_EMERG "restart_r0: \t0x%08lx syscall_nr: %ld\n",
regs->restart_r0, regs->syscall_nr);
printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds);

12
arch/ia64/kernel/process.c
View file

@ -95,22 +95,14 @@ show_stack (struct task_struct *task, unsigned long *sp)
}
}
void
dump_stack (void)
{
show_stack(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
void
show_regs (struct pt_regs *regs)
{
unsigned long ip = regs->cr_iip + ia64_psr(regs)->ri;
print_modules();
printk("\nPid: %d, CPU %d, comm: %20s\n", task_pid_nr(current),
smp_processor_id(), current->comm);
printk("\n");
show_regs_print_info(KERN_DEFAULT);
printk("psr : %016lx ifs : %016lx ip : [<%016lx>] %s (%s)\n",
regs->cr_ipsr, regs->cr_ifs, ip, print_tainted(),
init_utsname()->release);

1
arch/ia64/kernel/setup.c
View file

@ -1063,6 +1063,7 @@ check_bugs (void)
static int __init run_dmi_scan(void)
{
dmi_scan_machine();
dmi_set_dump_stack_arch_desc();
return 0;
}
core_initcall(run_dmi_scan);

2
arch/m32r/kernel/process.c
View file

@ -73,6 +73,8 @@ void machine_power_off(void)
void show_regs(struct pt_regs * regs)
{
printk("\n");
show_regs_print_info(KERN_DEFAULT);
printk("BPC[%08lx]:PSW[%08lx]:LR [%08lx]:FP [%08lx]\n", \
regs->bpc, regs->psw, regs->lr, regs->fp);
printk("BBPC[%08lx]:BBPSW[%08lx]:SPU[%08lx]:SPI[%08lx]\n", \

9
arch/m32r/kernel/traps.c
View file

@ -167,15 +167,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
show_trace(task, sp);
}
void dump_stack(void)
{
unsigned long stack;
show_trace(current, &stack);
}
EXPORT_SYMBOL(dump_stack);
static void show_registers(struct pt_regs *regs)
{
int i = 0;

12
arch/m68k/kernel/traps.c
View file

@ -991,18 +991,6 @@ void show_stack(struct task_struct *task, unsigned long *stack)
show_trace(stack);
}
/*
* The architecture-independent backtrace generator
*/
void dump_stack(void)
{
unsigned long stack;
show_trace(&stack);
}
EXPORT_SYMBOL(dump_stack);
/*
* The vector number returned in the frame pointer may also contain
* the "fs" (Fault Status) bits on ColdFire. These are in the bottom

2
arch/metag/kernel/process.c
View file

@ -129,6 +129,8 @@ void show_regs(struct pt_regs *regs)
"D1.7 "
};
show_regs_print_info(KERN_INFO);
pr_info(" pt_regs @ %p\n", regs);
pr_info(" SaveMask = 0x%04hx\n", regs->ctx.SaveMask);
pr_info(" Flags = 0x%04hx (%c%c%c%c)\n", regs->ctx.Flags,

6
arch/metag/kernel/traps.c
View file

@ -987,9 +987,3 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
show_trace(tsk, sp, NULL);
}
void dump_stack(void)
{
show_stack(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);

2
arch/microblaze/kernel/process.c
View file

@ -20,6 +20,8 @@
void show_regs(struct pt_regs *regs)
{
show_regs_print_info(KERN_INFO);
pr_info(" Registers dump: mode=%X\r\n", regs->pt_mode);
pr_info(" r1=%08lX, r2=%08lX, r3=%08lX, r4=%08lX\n",
regs->r1, regs->r2, regs->r3, regs->r4);

6
arch/microblaze/kernel/traps.c
View file

@ -75,9 +75,3 @@ void show_stack(struct task_struct *task, unsigned long *sp)
debug_show_held_locks(task);
}
void dump_stack(void)
{
show_stack(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);

15
arch/mips/kernel/traps.c
View file

@ -206,19 +206,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
show_stacktrace(task, &regs);
}
/*
* The architecture-independent dump_stack generator
*/
void dump_stack(void)
{
struct pt_regs regs;
prepare_frametrace(&regs);
show_backtrace(current, &regs);
}
EXPORT_SYMBOL(dump_stack);
static void show_code(unsigned int __user *pc)
{
long i;
@ -244,7 +231,7 @@ static void __show_regs(const struct pt_regs *regs)
unsigned int cause = regs->cp0_cause;
int i;
printk("Cpu %d\n", smp_processor_id());
show_regs_print_info(KERN_DEFAULT);
/*
* Saved main processor registers

1
arch/mn10300/kernel/process.c
View file

@ -97,6 +97,7 @@ void machine_power_off(void)
void show_regs(struct pt_regs *regs)
{
show_regs_print_info(KERN_DEFAULT);
}
/*

11
arch/mn10300/kernel/traps.c
View file

@ -293,17 +293,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
show_trace(sp);
}
/*
* the architecture-independent dump_stack generator
*/
void dump_stack(void)
{
unsigned long stack;
show_stack(current, &stack);
}
EXPORT_SYMBOL(dump_stack);
/*
* dump the register file in the specified exception frame
*/

1
arch/openrisc/kernel/process.c
View file

@ -90,6 +90,7 @@ void show_regs(struct pt_regs *regs)
{
extern void show_registers(struct pt_regs *regs);
show_regs_print_info(KERN_DEFAULT);
/* __PHX__ cleanup this mess */
show_registers(regs);
}

11
arch/openrisc/kernel/traps.c
View file

@ -105,17 +105,6 @@ void show_trace_task(struct task_struct *tsk)
*/
}
/*
* The architecture-independent backtrace generator
*/
void dump_stack(void)
{
unsigned long stack;
show_stack(current, &stack);
}
EXPORT_SYMBOL(dump_stack);
void show_registers(struct pt_regs *regs)
{
int i;

1
arch/parisc/Kconfig
View file

@ -1,5 +1,6 @@
config PARISC
def_bool y
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_FUNCTION_TRACER if 64BIT

14
arch/parisc/Kconfig.debug
View file

@ -12,18 +12,4 @@ config DEBUG_RODATA
portion of the kernel code won't be covered by a TLB anymore.
If in doubt, say "N".
config DEBUG_STRICT_USER_COPY_CHECKS
bool "Strict copy size checks"
depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
---help---
Enabling this option turns a certain set of sanity checks for user
copy operations into compile time failures.
The copy_from_user() etc checks are there to help test if there
are sufficient security checks on the length argument of
the copy operation, by having gcc prove that the argument is
within bounds.
If unsure, or if you run an older (pre 4.4) gcc, say N.
endmenu

10
arch/parisc/kernel/traps.c
View file

@ -126,6 +126,8 @@ void show_regs(struct pt_regs *regs)
user = user_mode(regs);
level = user ? KERN_DEBUG : KERN_CRIT;
show_regs_print_info(level);
print_gr(level, regs);
for (i = 0; i < 8; i += 4)
@ -158,14 +160,6 @@ void show_regs(struct pt_regs *regs)
}
}
void dump_stack(void)
{
show_stack(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
static void do_show_stack(struct unwind_frame_info *info)
{
int i = 1;

14
arch/powerpc/kernel/process.c
View file

@ -831,6 +831,8 @@ void show_regs(struct pt_regs * regs)
{
int i, trap;
show_regs_print_info(KERN_DEFAULT);
printk("NIP: "REG" LR: "REG" CTR: "REG"\n",
regs->nip, regs->link, regs->ctr);
printk("REGS: %p TRAP: %04lx %s (%s)\n",
@ -850,12 +852,6 @@ void show_regs(struct pt_regs * regs)
#else
printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr);
#endif
printk("TASK = %p[%d] '%s' THREAD: %p",
current, task_pid_nr(current), current->comm, task_thread_info(current));
#ifdef CONFIG_SMP
printk(" CPU: %d", raw_smp_processor_id());
#endif /* CONFIG_SMP */
for (i = 0; i < 32; i++) {
if ((i % REGS_PER_LINE) == 0)
@ -1362,12 +1358,6 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
} while (count++ < kstack_depth_to_print);
}
void dump_stack(void)
{
show_stack(current, NULL);
}
EXPORT_SYMBOL(dump_stack);
#ifdef CONFIG_PPC64
/* Called with hard IRQs off */
void __ppc64_runlatch_on(void)

2
arch/powerpc/xmon/xmon.c
View file

@ -2947,7 +2947,7 @@ static void sysrq_handle_xmon(int key)
static struct sysrq_key_op sysrq_xmon_op = {
.handler = sysrq_handle_xmon,
.help_msg = "Xmon",
.help_msg = "xmon(x)",
.action_msg = "Entering xmon",
};

1
arch/s390/Kconfig
View file

@ -91,6 +91,7 @@ config S390
select ARCH_INLINE_WRITE_UNLOCK_BH
select ARCH_INLINE_WRITE_UNLOCK_IRQ
select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
select ARCH_SAVE_PAGE_KEYS if HIBERNATION
select ARCH_WANT_IPC_PARSE_VERSION
select BUILDTIME_EXTABLE_SORT

14
arch/s390/Kconfig.debug
View file

@ -17,20 +17,6 @@ config STRICT_DEVMEM
If you are unsure, say Y.
config DEBUG_STRICT_USER_COPY_CHECKS
def_bool n
prompt "Strict user copy size checks"
---help---
Enabling this option turns a certain set of sanity checks for user
copy operations into compile time warnings.
The copy_from_user() etc checks are there to help test if there
are sufficient security checks on the length argument of
the copy operation, by having gcc prove that the argument is
within bounds.
If unsure, or if you run an older (pre 4.4) gcc, say N.
config S390_PTDUMP
bool "Export kernel pagetable layout to userspace via debugfs"
depends on DEBUG_KERNEL

26
arch/s390/kernel/dumpstack.c
View file

@ -129,23 +129,6 @@ static void show_last_breaking_event(struct pt_regs *regs)
#endif
}
/*
* The architecture-independent dump_stack generator
*/
void dump_stack(void)
{
printk("CPU: %d %s %s %.*s\n",
task_thread_info(current)->cpu, print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
current->comm, current->pid, current,
(void *) current->thread.ksp);
show_stack(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
static inline int mask_bits(struct pt_regs *regs, unsigned long bits)
{
return (regs->psw.mask & bits) / ((~bits + 1) & bits);
@ -183,14 +166,7 @@ void show_registers(struct pt_regs *regs)
void show_regs(struct pt_regs *regs)
{
printk("CPU: %d %s %s %.*s\n",
task_thread_info(current)->cpu, print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
current->comm, current->pid, current,
(void *) current->thread.ksp);
show_regs_print_info(KERN_DEFAULT);
show_registers(regs);
/* Show stack backtrace if pt_regs is from kernel mode */
if (!user_mode(regs))

1
arch/s390/lib/Makefile
View file

@ -3,7 +3,6 @@
#
lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
obj-y += usercopy.o
obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o mem32.o
obj-$(CONFIG_64BIT) += mem64.o
lib-$(CONFIG_64BIT) += uaccess_mvcos.o

12
arch/score/kernel/traps.c
View file

@ -117,6 +117,8 @@ static void show_code(unsigned int *pc)
*/
void show_regs(struct pt_regs *regs)
{
show_regs_print_info(KERN_DEFAULT);
printk("r0 : %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n",
regs->regs[0], regs->regs[1], regs->regs[2], regs->regs[3],
regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]);
@ -149,16 +151,6 @@ static void show_registers(struct pt_regs *regs)
printk(KERN_NOTICE "\n");
}
/*
* The architecture-independent dump_stack generator
*/
void dump_stack(void)
{
show_stack(current_thread_info()->task,
(long *) get_irq_regs()->regs[0]);
}
EXPORT_SYMBOL(dump_stack);
void __die(const char *str, struct pt_regs *regs, const char *file,
const char *func, unsigned long line)
{

6
arch/sh/kernel/dumpstack.c
View file

@ -158,9 +158,3 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
(unsigned long)task_stack_page(tsk));
show_trace(tsk, sp, NULL);
}
void dump_stack(void)
{
show_stack(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);

6
arch/sh/kernel/process_32.c
View file

@ -32,11 +32,7 @@
void show_regs(struct pt_regs * regs)
{
printk("\n");
printk("Pid : %d, Comm: \t\t%s\n", task_pid_nr(current), current->comm);
printk("CPU : %d \t\t%s (%s %.*s)\n\n",
smp_processor_id(), print_tainted(), init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
show_regs_print_info(KERN_DEFAULT);
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("PR is at %s\n", regs->pr);

1
arch/sh/kernel/process_64.c
View file

@ -40,6 +40,7 @@ void show_regs(struct pt_regs *regs)
unsigned long long ah, al, bh, bl, ch, cl;
printk("\n");
show_regs_print_info(KERN_DEFAULT);
ah = (regs->pc) >> 32;
al = (regs->pc) & 0xffffffff;

23
arch/sparc/kernel/process_32.c
View file

@ -112,6 +112,8 @@ void show_regs(struct pt_regs *r)
{
struct reg_window32 *rw = (struct reg_window32 *) r->u_regs[14];
show_regs_print_info(KERN_DEFAULT);
printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n",
r->psr, r->pc, r->npc, r->y, print_tainted());
printk("PC: <%pS>\n", (void *) r->pc);
@ -142,11 +144,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
struct reg_window32 *rw;
int count = 0;
if (tsk != NULL)
task_base = (unsigned long) task_stack_page(tsk);
else
task_base = (unsigned long) current_thread_info();
if (!tsk)
tsk = current;
if (tsk == current && !_ksp)
__asm__ __volatile__("mov %%fp, %0" : "=r" (_ksp));
task_base = (unsigned long) task_stack_page(tsk);
fp = (unsigned long) _ksp;
do {
/* Bogus frame pointer? */
@ -162,17 +166,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
printk("\n");
}
void dump_stack(void)
{
unsigned long *ksp;
__asm__ __volatile__("mov %%fp, %0"
: "=r" (ksp));
show_stack(current, ksp);
}
EXPORT_SYMBOL(dump_stack);
/*
* Note: sparc64 has a pretty intricated thread_saved_pc, check it out.
*/

6
arch/sparc/kernel/process_64.c
View file

@ -163,6 +163,8 @@ static void show_regwindow(struct pt_regs *regs)
void show_regs(struct pt_regs *regs)
{
show_regs_print_info(KERN_DEFAULT);
printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate,
regs->tpc, regs->tnpc, regs->y, print_tainted());
printk("TPC: <%pS>\n", (void *) regs->tpc);
@ -292,7 +294,7 @@ static void sysrq_handle_globreg(int key)
static struct sysrq_key_op sparc_globalreg_op = {
.handler = sysrq_handle_globreg,
.help_msg = "global-regs(Y)",
.help_msg = "global-regs(y)",
.action_msg = "Show Global CPU Regs",
};
@ -362,7 +364,7 @@ static void sysrq_handle_globpmu(int key)
static struct sysrq_key_op sparc_globalpmu_op = {
.handler = sysrq_handle_globpmu,
.help_msg = "global-pmu(X)",
.help_msg = "global-pmu(x)",
.action_msg = "Show Global PMU Regs",
};

7
arch/sparc/kernel/traps_64.c
View file

@ -2350,13 +2350,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
} while (++count < 16);
}
void dump_stack(void)
{
show_stack(current, NULL);
}
EXPORT_SYMBOL(dump_stack);
static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
{
unsigned long fp = rw->ins[6];

1
arch/sparc/lib/Makefile
View file

@ -45,4 +45,3 @@ obj-y += iomap.o
obj-$(CONFIG_SPARC32) += atomic32.o ucmpdi2.o
obj-y += ksyms.o
obj-$(CONFIG_SPARC64) += PeeCeeI.o
obj-y += usercopy.o

9
arch/sparc/lib/usercopy.c
View file

@ -1,9 +0,0 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/bug.h>
void copy_from_user_overflow(void)
{
WARN(1, "Buffer overflow detected!\n");
}
EXPORT_SYMBOL(copy_from_user_overflow);

8
arch/tile/Kconfig
View file

@ -19,6 +19,7 @@ config TILE
select HAVE_SYSCALL_WRAPPERS if TILEGX
select VIRT_TO_BUS
select SYS_HYPERVISOR
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
select ARCH_HAVE_NMI_SAFE_CMPXCHG
select GENERIC_CLOCKEVENTS
select MODULES_USE_ELF_RELA
@ -114,13 +115,6 @@ config STRICT_DEVMEM
config SMP
def_bool y
# Allow checking for compile-time determined overflow errors in
# copy_from_user(). There are still unprovable places in the
# generic code as of 2.6.34, so this option is not really compatible
# with -Werror, which is more useful in general.
config DEBUG_COPY_FROM_USER
def_bool n
config HVC_TILE
depends on TTY
select HVC_DRIVER

7
arch/tile/include/asm/uaccess.h
View file

@ -395,7 +395,12 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
return n;
}
#ifdef CONFIG_DEBUG_COPY_FROM_USER
#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
/*
* There are still unprovable places in the generic code as of 2.6.34, so this
* option is not really compatible with -Werror, which is more useful in
* general.
*/
extern void copy_from_user_overflow(void)
__compiletime_warning("copy_from_user() size is not provably correct");

3
arch/tile/kernel/process.c
View file

@ -573,8 +573,7 @@ void show_regs(struct pt_regs *regs)
int i;
pr_err("\n");
pr_err(" Pid: %d, comm: %20s, CPU: %d\n",
tsk->pid, tsk->comm, smp_processor_id());
show_regs_print_info(KERN_ERR);
#ifdef __tilegx__
for (i = 0; i < 51; i += 3)
pr_err(" r%-2d: "REGFMT" r%-2d: "REGFMT" r%-2d: "REGFMT"\n",

8
arch/tile/lib/uaccess.c
View file

@ -22,11 +22,3 @@ int __range_ok(unsigned long addr, unsigned long size)
is_arch_mappable_range(addr, size));
}
EXPORT_SYMBOL(__range_ok);
#ifdef CONFIG_DEBUG_COPY_FROM_USER
void copy_from_user_overflow(void)
{
WARN(1, "Buffer overflow detected!\n");
}
EXPORT_SYMBOL(copy_from_user_overflow);
#endif

12
arch/um/kernel/sysrq.c
View file

@ -35,18 +35,6 @@ void show_trace(struct task_struct *task, unsigned long * stack)
}
#endif
/*
* stack dumps generator - this is used by arch-independent code.
* And this is identical to i386 currently.
*/
void dump_stack(void)
{
unsigned long stack;
show_trace(current, &stack);
}
EXPORT_SYMBOL(dump_stack);
/*Stolen from arch/i386/kernel/traps.c */
static const int kstack_depth_to_print = 24;

2
arch/um/sys-ppc/sysrq.c
View file

@ -11,6 +11,8 @@
void show_regs(struct pt_regs_subarch *regs)
{
printk("\n");
show_regs_print_info(KERN_DEFAULT);
printk("show_regs(): insert regs here.\n");
#if 0
printk("\n");

6
arch/unicore32/kernel/process.c
View file

@ -144,11 +144,7 @@ void __show_regs(struct pt_regs *regs)
unsigned long flags;
char buf[64];
printk(KERN_DEFAULT "CPU: %d %s (%s %.*s)\n",
raw_smp_processor_id(), print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
show_regs_print_info(KERN_DEFAULT);
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("LR is at %s\n", regs->UCreg_lr);
printk(KERN_DEFAULT "pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n"

6
arch/unicore32/kernel/traps.c
View file

@ -170,12 +170,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
c_backtrace(fp, mode);
}
void dump_stack(void)
{
dump_backtrace(NULL, NULL);
}
EXPORT_SYMBOL(dump_stack);
void show_stack(struct task_struct *tsk, unsigned long *sp)
{
dump_backtrace(NULL, tsk);

1
arch/x86/Kconfig
View file

@ -20,6 +20,7 @@ config X86_64
### Arch settings
config X86
def_bool y
select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
select HAVE_AOUT if X86_32
select HAVE_UNSTABLE_SCHED_CLOCK
select ARCH_SUPPORTS_NUMA_BALANCING

14
arch/x86/Kconfig.debug
View file

@ -292,20 +292,6 @@ config OPTIMIZE_INLINING
If unsure, say N.
config DEBUG_STRICT_USER_COPY_CHECKS
bool "Strict copy size checks"
depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
---help---
Enabling this option turns a certain set of sanity checks for user
copy operations into compile time failures.
The copy_from_user() etc checks are there to help test if there
are sufficient security checks on the length argument of
the copy operation, by having gcc prove that the argument is
within bounds.
If unsure, or if you run an older (pre 4.4) gcc, say N.
config DEBUG_NMI_SELFTEST
bool "NMI Selftest"
depends on DEBUG_KERNEL && X86_LOCAL_APIC

1
arch/x86/ia32/ia32_aout.c
View file

@ -162,7 +162,6 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
fs = get_fs();
set_fs(KERNEL_DS);
has_dumped = 1;
current->flags |= PF_DUMPCORE;
strncpy(dump.u_comm, current->comm, sizeof(current->comm));
dump.u_ar0 = offsetof(struct user32, regs);
dump.signal = signr;

3
arch/x86/include/asm/bug.h
View file

@ -37,7 +37,4 @@ do { \
#include <asm-generic/bug.h>
extern void show_regs_common(void);
#endif /* _ASM_X86_BUG_H */

28
arch/x86/kernel/dumpstack.c
View file

@ -176,26 +176,20 @@ void show_trace(struct task_struct *task, struct pt_regs *regs,
void show_stack(struct task_struct *task, unsigned long *sp)
{
show_stack_log_lvl(task, NULL, sp, 0, "");
}
/*
* The architecture-independent dump_stack generator
*/
void dump_stack(void)
{
unsigned long bp;
unsigned long bp = 0;
unsigned long stack;
bp = stack_frame(current, NULL);
printk("Pid: %d, comm: %.20s %s %s %.*s\n",
current->pid, current->comm, print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version);
show_trace(NULL, NULL, &stack, bp);
/*
* Stack frames below this one aren't interesting. Don't show them
* if we're printing for %current.
*/
if (!sp && (!task || task == current)) {
sp = &stack;
bp = stack_frame(current, NULL);
}
show_stack_log_lvl(task, NULL, sp, bp, "");
}
EXPORT_SYMBOL(dump_stack);
static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
static int die_owner = -1;

4
arch/x86/kernel/dumpstack_32.c
View file

@ -86,11 +86,9 @@ void show_regs(struct pt_regs *regs)
{
int i;
show_regs_print_info(KERN_EMERG);
__show_regs(regs, !user_mode_vm(regs));
pr_emerg("Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)\n",
TASK_COMM_LEN, current->comm, task_pid_nr(current),
current_thread_info(), current, task_thread_info(current));
/*
* When in-kernel, we also print out the stack and code at the
* time of the fault..

6
arch/x86/kernel/dumpstack_64.c
View file

@ -249,14 +249,10 @@ void show_regs(struct pt_regs *regs)
{
int i;
unsigned long sp;
const int cpu = smp_processor_id();
struct task_struct *cur = current;
sp = regs->sp;
printk("CPU %d ", cpu);
show_regs_print_info(KERN_DEFAULT);
__show_regs(regs, 1);
printk(KERN_DEFAULT "Process %s (pid: %d, threadinfo %p, task %p)\n",
cur->comm, cur->pid, task_thread_info(cur), cur);
/*
* When in-kernel, we also print out the stack and code at the

24
arch/x86/kernel/process.c
View file

@ -121,30 +121,6 @@ void exit_thread(void)
drop_fpu(me);
}
void show_regs_common(void)
{
const char *vendor, *product, *board;
vendor = dmi_get_system_info(DMI_SYS_VENDOR);
if (!vendor)
vendor = "";
product = dmi_get_system_info(DMI_PRODUCT_NAME);
if (!product)
product = "";
/* Board Name is optional */
board = dmi_get_system_info(DMI_BOARD_NAME);
printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s %s %s%s%s\n",
current->pid, current->comm, print_tainted(),
init_utsname()->release,
(int)strcspn(init_utsname()->version, " "),
init_utsname()->version,
vendor, product,
board ? "/" : "",
board ? board : "");
}
void flush_thread(void)
{
struct task_struct *tsk = current;

2
arch/x86/kernel/process_32.c
View file

@ -84,8 +84,6 @@ void __show_regs(struct pt_regs *regs, int all)
savesegment(gs, gs);
}
show_regs_common();
printk(KERN_DEFAULT "EIP: %04x:[<%08lx>] EFLAGS: %08lx CPU: %d\n",
(u16)regs->cs, regs->ip, regs->flags,
smp_processor_id());

1
arch/x86/kernel/process_64.c
View file

@ -62,7 +62,6 @@ void __show_regs(struct pt_regs *regs, int all)
unsigned int fsindex, gsindex;
unsigned int ds, cs, es;
show_regs_common();
printk(KERN_DEFAULT "RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip);
printk_address(regs->ip, 1);
printk(KERN_DEFAULT "RSP: %04lx:%016lx EFLAGS: %08lx\n", regs->ss,

1
arch/x86/kernel/setup.c
View file

@ -996,6 +996,7 @@ void __init setup_arch(char **cmdline_p)
efi_init();
dmi_scan_machine();
dmi_set_dump_stack_arch_desc();
/*
* VMware detection requires dmi to be available, so this

6
arch/x86/lib/usercopy_32.c
View file

@ -689,9 +689,3 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
return n;
}
EXPORT_SYMBOL(_copy_from_user);
void copy_from_user_overflow(void)
{
WARN(1, "Buffer overflow detected!\n");
}
EXPORT_SYMBOL(copy_from_user_overflow);

10
arch/xtensa/kernel/traps.c
View file

@ -383,6 +383,8 @@ void show_regs(struct pt_regs * regs)
{
int i, wmask;
show_regs_print_info(KERN_DEFAULT);
wmask = regs->wmask & ~1;
for (i = 0; i < 16; i++) {
@ -481,14 +483,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
show_trace(task, stack);
}
void dump_stack(void)
{
show_stack(current, NULL);
}
EXPORT_SYMBOL(dump_stack);
void show_code(unsigned int *pc)
{
long i;

4
drivers/Kconfig
View file

@ -120,6 +120,8 @@ source "drivers/vfio/Kconfig"
source "drivers/vlynq/Kconfig"
source "drivers/virt/Kconfig"
source "drivers/virtio/Kconfig"
source "drivers/hv/Kconfig"
@ -144,8 +146,6 @@ source "drivers/remoteproc/Kconfig"
source "drivers/rpmsg/Kconfig"
source "drivers/virt/Kconfig"
source "drivers/devfreq/Kconfig"
source "drivers/extcon/Kconfig"

3
drivers/block/aoe/aoechr.c
View file

@ -139,13 +139,12 @@ bail: spin_unlock_irqrestore(&emsgs_lock, flags);
return;
}
mp = kmalloc(n, GFP_ATOMIC);
mp = kmemdup(msg, n, GFP_ATOMIC);
if (mp == NULL) {
printk(KERN_ERR "aoe: allocation failure, len=%ld\n", n);
goto bail;
}
memcpy(mp, msg, n);
em->msg = mp;
em->flags |= EMFL_VALID;
em->len = n;

2
drivers/block/nbd.c
View file

@ -856,6 +856,8 @@ static int __init nbd_init(void)
disk->queue->limits.discard_granularity = 512;
disk->queue->limits.max_discard_sectors = UINT_MAX;
disk->queue->limits.discard_zeroes_data = 0;
blk_queue_max_hw_sectors(disk->queue, 65536);
disk->queue->limits.max_sectors = 256;
}
if (register_blkdev(NBD_MAJOR, "nbd")) {

1
drivers/char/random.c
View file

@ -1485,6 +1485,7 @@ unsigned int get_random_int(void)
return ret;
}
EXPORT_SYMBOL(get_random_int);
/*
* randomize_range() returns a start address such that

137
drivers/firmware/dmi_scan.c
View file

@ -22,6 +22,9 @@ static u16 __initdata dmi_ver;
*/
static int dmi_initialized;
/* DMI system identification string used during boot */
static char dmi_ids_string[128] __initdata;
static const char * __init dmi_string_nosave(const struct dmi_header *dm, u8 s)
{
const u8 *bp = ((u8 *) dm) + dm->length;
@ -376,99 +379,103 @@ static void __init dmi_decode(const struct dmi_header *dm, void *dummy)
}
}
static void __init print_filtered(const char *info)
static int __init print_filtered(char *buf, size_t len, const char *info)
{
int c = 0;
const char *p;
if (!info)
return;
return c;
for (p = info; *p; p++)
if (isprint(*p))
printk(KERN_CONT "%c", *p);
c += scnprintf(buf + c, len - c, "%c", *p);
else
printk(KERN_CONT "\\x%02x", *p & 0xff);
c += scnprintf(buf + c, len - c, "\\x%02x", *p & 0xff);
return c;
}
static void __init dmi_dump_ids(void)
static void __init dmi_format_ids(char *buf, size_t len)
{
int c = 0;
const char *board; /* Board Name is optional */
printk(KERN_DEBUG "DMI: ");
print_filtered(dmi_get_system_info(DMI_SYS_VENDOR));
printk(KERN_CONT " ");
print_filtered(dmi_get_system_info(DMI_PRODUCT_NAME));
c += print_filtered(buf + c, len - c,
dmi_get_system_info(DMI_SYS_VENDOR));
c += scnprintf(buf + c, len - c, " ");
c += print_filtered(buf + c, len - c,
dmi_get_system_info(DMI_PRODUCT_NAME));
board = dmi_get_system_info(DMI_BOARD_NAME);
if (board) {
printk(KERN_CONT "/");
print_filtered(board);
c += scnprintf(buf + c, len - c, "/");
c += print_filtered(buf + c, len - c, board);
}
printk(KERN_CONT ", BIOS ");
print_filtered(dmi_get_system_info(DMI_BIOS_VERSION));
printk(KERN_CONT " ");
print_filtered(dmi_get_system_info(DMI_BIOS_DATE));
printk(KERN_CONT "\n");
c += scnprintf(buf + c, len - c, ", BIOS ");
c += print_filtered(buf + c, len - c,
dmi_get_system_info(DMI_BIOS_VERSION));
c += scnprintf(buf + c, len - c, " ");
c += print_filtered(buf + c, len - c,
dmi_get_system_info(DMI_BIOS_DATE));
}
static int __init dmi_present(const char __iomem *p)
static int __init dmi_present(const u8 *buf)
{
u8 buf[15];
int smbios_ver;
memcpy_fromio(buf, p, 15);
if (dmi_checksum(buf, 15)) {
if (memcmp(buf, "_SM_", 4) == 0 &&
buf[5] < 32 && dmi_checksum(buf, buf[5])) {
smbios_ver = (buf[6] << 8) + buf[7];
/* Some BIOS report weird SMBIOS version, fix that up */
switch (smbios_ver) {
case 0x021F:
case 0x0221:
pr_debug("SMBIOS version fixup(2.%d->2.%d)\n",
smbios_ver & 0xFF, 3);
smbios_ver = 0x0203;
break;
case 0x0233:
pr_debug("SMBIOS version fixup(2.%d->2.%d)\n", 51, 6);
smbios_ver = 0x0206;
break;
}
} else {
smbios_ver = 0;
}
buf += 16;
if (memcmp(buf, "_DMI_", 5) == 0 && dmi_checksum(buf, 15)) {
dmi_num = (buf[13] << 8) | buf[12];
dmi_len = (buf[7] << 8) | buf[6];
dmi_base = (buf[11] << 24) | (buf[10] << 16) |
(buf[9] << 8) | buf[8];
if (dmi_walk_early(dmi_decode) == 0) {
if (dmi_ver)
if (smbios_ver) {
dmi_ver = smbios_ver;
pr_info("SMBIOS %d.%d present.\n",
dmi_ver >> 8, dmi_ver & 0xFF);
else {
} else {
dmi_ver = (buf[14] & 0xF0) << 4 |
(buf[14] & 0x0F);
pr_info("Legacy DMI %d.%d present.\n",
dmi_ver >> 8, dmi_ver & 0xFF);
}
dmi_dump_ids();
dmi_format_ids(dmi_ids_string, sizeof(dmi_ids_string));
printk(KERN_DEBUG "DMI: %s\n", dmi_ids_string);
return 0;
}
}
dmi_ver = 0;
return 1;
}
static int __init smbios_present(const char __iomem *p)
{
u8 buf[32];
memcpy_fromio(buf, p, 32);
if ((buf[5] < 32) && dmi_checksum(buf, buf[5])) {
dmi_ver = (buf[6] << 8) + buf[7];
/* Some BIOS report weird SMBIOS version, fix that up */
switch (dmi_ver) {
case 0x021F:
case 0x0221:
pr_debug("SMBIOS version fixup(2.%d->2.%d)\n",
dmi_ver & 0xFF, 3);
dmi_ver = 0x0203;
break;
case 0x0233:
pr_debug("SMBIOS version fixup(2.%d->2.%d)\n", 51, 6);
dmi_ver = 0x0206;
break;
}
return memcmp(p + 16, "_DMI_", 5) || dmi_present(p + 16);
}
return 1;
}
void __init dmi_scan_machine(void)
{
char __iomem *p, *q;
int rc;
char buf[32];
if (efi_enabled(EFI_CONFIG_TABLES)) {
if (efi.smbios == EFI_INVALID_TABLE_ADDR)
@ -481,10 +488,10 @@ void __init dmi_scan_machine(void)
p = dmi_ioremap(efi.smbios, 32);
if (p == NULL)
goto error;
rc = smbios_present(p);
memcpy_fromio(buf, p, 32);
dmi_iounmap(p, 32);
if (!rc) {
if (!dmi_present(buf)) {
dmi_available = 1;
goto out;
}
@ -499,18 +506,15 @@ void __init dmi_scan_machine(void)
if (p == NULL)
goto error;
memset(buf, 0, 16);
for (q = p; q < p + 0x10000; q += 16) {
if (memcmp(q, "_SM_", 4) == 0 && q - p <= 0xFFE0)
rc = smbios_present(q);
else if (memcmp(q, "_DMI_", 5) == 0)
rc = dmi_present(q);
else
continue;
if (!rc) {
memcpy_fromio(buf + 16, q, 16);
if (!dmi_present(buf)) {
dmi_available = 1;
dmi_iounmap(p, 0x10000);
goto out;
}
memcpy(buf, buf + 16, 16);
}
dmi_iounmap(p, 0x10000);
}
@ -520,6 +524,19 @@ void __init dmi_scan_machine(void)
dmi_initialized = 1;
}
/**
* dmi_set_dump_stack_arch_desc - set arch description for dump_stack()
*
* Invoke dump_stack_set_arch_desc() with DMI system information so that
* DMI identifiers are printed out on task dumps. Arch boot code should
* call this function after dmi_scan_machine() if it wants to print out DMI
* identifiers on task dumps.
*/
void __init dmi_set_dump_stack_arch_desc(void)
{
dump_stack_set_arch_desc("%s", dmi_ids_string);
}
/**
* dmi_matches - check if dmi_system_id structure matches system DMI data
* @dmi: pointer to the dmi_system_id structure to check

8
drivers/memstick/host/r592.c
View file

@ -847,7 +847,7 @@ static void r592_remove(struct pci_dev *pdev)
dev->dummy_dma_page_physical_address);
}
#ifdef CONFIG_PM
#ifdef CONFIG_PM_SLEEP
static int r592_suspend(struct device *core_dev)
{
struct pci_dev *pdev = to_pci_dev(core_dev);
@ -870,10 +870,10 @@ static int r592_resume(struct device *core_dev)
r592_update_card_detect(dev);
return 0;
}
SIMPLE_DEV_PM_OPS(r592_pm_ops, r592_suspend, r592_resume);
#endif
static SIMPLE_DEV_PM_OPS(r592_pm_ops, r592_suspend, r592_resume);
MODULE_DEVICE_TABLE(pci, r592_pci_id_tbl);
static struct pci_driver r852_pci_driver = {
@ -881,9 +881,7 @@ static struct pci_driver r852_pci_driver = {
.id_table = r592_pci_id_tbl,
.probe = r592_probe,
.remove = r592_remove,
#ifdef CONFIG_PM
.driver.pm = &r592_pm_ops,
#endif
};
static __init int r592_module_init(void)

10
drivers/message/i2o/i2o_config.c
View file

@ -687,6 +687,11 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
}
size = size >> 16;
size *= 4;
if (size > sizeof(rmsg)) {
rcode = -EINVAL;
goto sg_list_cleanup;
}
/* Copy in the user's I2O command */
if (copy_from_user(rmsg, user_msg, size)) {
rcode = -EFAULT;
@ -922,6 +927,11 @@ static int i2o_cfg_passthru(unsigned long arg)
}
size = size >> 16;
size *= 4;
if (size > sizeof(rmsg)) {
rcode = -EFAULT;
goto sg_list_cleanup;
}
/* Copy in the user's I2O command */
if (copy_from_user(rmsg, user_msg, size)) {
rcode = -EFAULT;

2
drivers/net/ethernet/ibm/emac/debug.c
View file

@ -245,7 +245,7 @@ static void emac_sysrq_handler(int key)
static struct sysrq_key_op emac_sysrq_op = {
.handler = emac_sysrq_handler,
.help_msg = "emaC",
.help_msg = "emac(c)",
.action_msg = "Show EMAC(s) status",
};

6
drivers/pps/Kconfig
View file

@ -20,10 +20,10 @@ config PPS
To compile this driver as a module, choose M here: the module
will be called pps_core.ko.
if PPS
config PPS_DEBUG
bool "PPS debugging messages"
depends on PPS
help
Say Y here if you want the PPS support to produce a bunch of debug
messages to the system log. Select this if you are having a
@ -31,13 +31,15 @@ config PPS_DEBUG
config NTP_PPS
bool "PPS kernel consumer support"
depends on PPS && !NO_HZ
depends on !NO_HZ
help
This option adds support for direct in-kernel time
synchronization using an external PPS signal.
It doesn't work on tickless systems at the moment.
endif
source drivers/pps/clients/Kconfig
source drivers/pps/generators/Kconfig

6
drivers/pps/kc.c
View file

@ -34,10 +34,10 @@
*/
/* state variables to bind kernel consumer */
DEFINE_SPINLOCK(pps_kc_hardpps_lock);
static DEFINE_SPINLOCK(pps_kc_hardpps_lock);
/* PPS API (RFC 2783): current source and mode for kernel consumer */
struct pps_device *pps_kc_hardpps_dev; /* unique pointer to device */
int pps_kc_hardpps_mode; /* mode bits for kernel consumer */
static struct pps_device *pps_kc_hardpps_dev; /* unique pointer to device */
static int pps_kc_hardpps_mode; /* mode bits for kernel consumer */
/* pps_kc_bind - control PPS kernel consumer binding
* @pps: the PPS source

6
drivers/staging/speakup/kobjects.c
View file

@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/kobject.h>
#include <linux/string.h>
#include <linux/string_helpers.h>
#include <linux/sysfs.h>
#include <linux/ctype.h>
@ -417,7 +418,7 @@ static ssize_t synth_direct_store(struct kobject *kobj,
bytes = min_t(size_t, len, 250);
strncpy(tmp, ptr, bytes);
tmp[bytes] = '\0';
spk_xlate(tmp);
string_unescape_any_inplace(tmp);
synth_printf("%s", tmp);
ptr += bytes;
len -= bytes;
@ -605,7 +606,8 @@ ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
if (param->data == NULL)
return 0;
ret = 0;
cp = spk_xlate((char *) buf);
cp = (char *)buf;
string_unescape_any_inplace(cp);
spk_lock(flags);
switch (param->var_type) {

1
drivers/staging/speakup/speakup.h
View file

@ -54,7 +54,6 @@ void spk_get_index_count(int *linecount, int *sentcount);
extern int spk_set_key_info(const u_char *key_info, u_char *k_buffer);
extern char *spk_strlwr(char *s);
extern char *spk_s2uchar(char *start, char *dest);
extern char *spk_xlate(char *s);
extern int speakup_kobj_init(void);
extern void speakup_kobj_exit(void);
extern int spk_chartab_get_value(char *keyword);

46
drivers/staging/speakup/varhandlers.c
View file

@ -328,49 +328,3 @@ char *spk_s2uchar(char *start, char *dest)
*dest = (u_char)val;
return start;
}
char *spk_xlate(char *s)
{
static const char finds[] = "nrtvafe";
static const char subs[] = "\n\r\t\013\001\014\033";
static const char hx[] = "0123456789abcdefABCDEF";
char *p = s, *p1, *p2, c;
int num;
while ((p = strchr(p, '\\'))) {
p1 = p+1;
p2 = strchr(finds, *p1);
if (p2) {
*p++ = subs[p2-finds];
p1++;
} else if (*p1 >= '0' && *p1 <= '7') {
num = (*p1++)&7;
while (num < 32 && *p1 >= '0' && *p1 <= '7') {
num <<= 3;
num += (*p1++)&7;
}
*p++ = num;
} else if (*p1 == 'x' &&
strchr(hx, p1[1]) && strchr(hx, p1[2])) {
p1++;
c = *p1++;
if (c > '9')
c = (c - '7') & 0x0f;
else
c -= '0';
num = c << 4;
c = *p1++;
if (c > '9')
c = (c-'7')&0x0f;
else
c -= '0';
num += c;
*p++ = num;
} else
*p++ = *p1++;
p2 = p;
while (*p1)
*p2++ = *p1++;
*p2 = '\0';
}
return s;
}

6
drivers/staging/zcache/Kconfig
View file

@ -1,5 +1,5 @@
config ZCACHE
bool "Dynamic compression of swap pages and clean pagecache pages"
tristate "Dynamic compression of swap pages and clean pagecache pages"
depends on CRYPTO=y && SWAP=y && CLEANCACHE && FRONTSWAP
select CRYPTO_LZO
default n
@ -19,8 +19,8 @@ config ZCACHE_DEBUG
how zcache is doing. You probably want to set this to 'N'.
config RAMSTER
bool "Cross-machine RAM capacity sharing, aka peer-to-peer tmem"
depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE=y
tristate "Cross-machine RAM capacity sharing, aka peer-to-peer tmem"
depends on CONFIGFS_FS=y && SYSFS=y && !HIGHMEM && ZCACHE
depends on NET
# must ensure struct page is 8-byte aligned
select HAVE_ALIGNED_STRUCT_PAGE if !64BIT

6
drivers/staging/zcache/ramster.h
View file

@ -11,10 +11,14 @@
#ifndef _ZCACHE_RAMSTER_H_
#define _ZCACHE_RAMSTER_H_
#ifdef CONFIG_RAMSTER_MODULE
#define CONFIG_RAMSTER
#endif
#ifdef CONFIG_RAMSTER
#include "ramster/ramster.h"
#else
static inline void ramster_init(bool x, bool y, bool z)
static inline void ramster_init(bool x, bool y, bool z, bool w)
{
}

2
drivers/staging/zcache/ramster/debug.c
View file

@ -43,7 +43,7 @@ static struct debug_entry {
};
#undef ATTR
int __init ramster_debugfs_init(void)
int ramster_debugfs_init(void)
{
int i;
struct dentry *root = debugfs_create_dir("ramster", NULL);

9
drivers/staging/zcache/ramster/nodemanager.c
View file

@ -949,7 +949,7 @@ static void __exit exit_r2nm(void)
r2hb_exit();
}
static int __init init_r2nm(void)
int r2nm_init(void)
{
int ret = -1;
@ -986,10 +986,11 @@ static int __init init_r2nm(void)
out:
return ret;
}
EXPORT_SYMBOL_GPL(r2nm_init);
MODULE_AUTHOR("Oracle");
MODULE_LICENSE("GPL");
/* module_init(init_r2nm) */
late_initcall(init_r2nm);
/* module_exit(exit_r2nm) */
#ifndef CONFIG_RAMSTER_MODULE
late_initcall(r2nm_init);
#endif

29
drivers/staging/zcache/ramster/ramster.c
View file

@ -121,6 +121,7 @@ int ramster_do_preload_flnode(struct tmem_pool *pool)
kmem_cache_free(ramster_flnode_cache, flnode);
return ret;
}
EXPORT_SYMBOL_GPL(ramster_do_preload_flnode);
/*
* Called by the message handler after a (still compressed) page has been
@ -388,6 +389,7 @@ void *ramster_pampd_free(void *pampd, struct tmem_pool *pool,
}
return local_pampd;
}
EXPORT_SYMBOL_GPL(ramster_pampd_free);
void ramster_count_foreign_pages(bool eph, int count)
{
@ -408,6 +410,7 @@ void ramster_count_foreign_pages(bool eph, int count)
}
}
}
EXPORT_SYMBOL_GPL(ramster_count_foreign_pages);
/*
* For now, just push over a few pages every few seconds to
@ -593,7 +596,7 @@ static void ramster_remotify_process(struct work_struct *work)
ramster_remotify_queue_delayed_work(HZ);
}
void __init ramster_remotify_init(void)
void ramster_remotify_init(void)
{
unsigned long n = 60UL;
ramster_remotify_workqueue =
@ -768,8 +771,10 @@ static bool frontswap_selfshrinking __read_mostly;
static void selfshrink_process(struct work_struct *work);
static DECLARE_DELAYED_WORK(selfshrink_worker, selfshrink_process);
#ifndef CONFIG_RAMSTER_MODULE
/* Enable/disable with kernel boot option. */
static bool use_frontswap_selfshrink __initdata = true;
static bool use_frontswap_selfshrink = true;
#endif
/*
* The default values for the following parameters were deemed reasonable
@ -824,6 +829,7 @@ static void frontswap_selfshrink(void)
frontswap_shrink(tgt_frontswap_pages);
}
#ifndef CONFIG_RAMSTER_MODULE
static int __init ramster_nofrontswap_selfshrink_setup(char *s)
{
use_frontswap_selfshrink = false;
@ -831,6 +837,7 @@ static int __init ramster_nofrontswap_selfshrink_setup(char *s)
}
__setup("noselfshrink", ramster_nofrontswap_selfshrink_setup);
#endif
static void selfshrink_process(struct work_struct *work)
{
@ -849,6 +856,7 @@ void ramster_cpu_up(int cpu)
per_cpu(ramster_remoteputmem1, cpu) = p1;
per_cpu(ramster_remoteputmem2, cpu) = p2;
}
EXPORT_SYMBOL_GPL(ramster_cpu_up);
void ramster_cpu_down(int cpu)
{
@ -864,6 +872,7 @@ void ramster_cpu_down(int cpu)
kp->flnode = NULL;
}
}
EXPORT_SYMBOL_GPL(ramster_cpu_down);
void ramster_register_pamops(struct tmem_pamops *pamops)
{
@ -874,9 +883,11 @@ void ramster_register_pamops(struct tmem_pamops *pamops)
pamops->repatriate = ramster_pampd_repatriate;
pamops->repatriate_preload = ramster_pampd_repatriate_preload;
}
EXPORT_SYMBOL_GPL(ramster_register_pamops);
void __init ramster_init(bool cleancache, bool frontswap,
bool frontswap_exclusive_gets)
void ramster_init(bool cleancache, bool frontswap,
bool frontswap_exclusive_gets,
bool frontswap_selfshrink)
{
int ret = 0;
@ -891,10 +902,17 @@ void __init ramster_init(bool cleancache, bool frontswap,
if (ret)
pr_err("ramster: can't create sysfs for ramster\n");
(void)r2net_register_handlers();
#ifdef CONFIG_RAMSTER_MODULE
ret = r2nm_init();
if (ret)
pr_err("ramster: can't init r2net\n");
frontswap_selfshrinking = frontswap_selfshrink;
#else
frontswap_selfshrinking = use_frontswap_selfshrink;
#endif
INIT_LIST_HEAD(&ramster_rem_op_list);
ramster_flnode_cache = kmem_cache_create("ramster_flnode",
sizeof(struct flushlist_node), 0, 0, NULL);
frontswap_selfshrinking = use_frontswap_selfshrink;
if (frontswap_selfshrinking) {
pr_info("ramster: Initializing frontswap selfshrink driver.\n");
schedule_delayed_work(&selfshrink_worker,
@ -902,3 +920,4 @@ void __init ramster_init(bool cleancache, bool frontswap,
}
ramster_remotify_init();
}
EXPORT_SYMBOL_GPL(ramster_init);

2
drivers/staging/zcache/ramster/ramster.h
View file

@ -147,7 +147,7 @@ extern int r2net_register_handlers(void);
extern int r2net_remote_target_node_set(int);
extern int ramster_remotify_pageframe(bool);
extern void ramster_init(bool, bool, bool);
extern void ramster_init(bool, bool, bool, bool);
extern void ramster_register_pamops(struct tmem_pamops *);
extern int ramster_localify(int, struct tmem_oid *oidp, uint32_t, char *,
unsigned int, void *);

2
drivers/staging/zcache/ramster/ramster_nodemanager.h
View file

@ -36,4 +36,6 @@
/* host name, group name, cluster name all 64 bytes */
#define R2NM_MAX_NAME_LEN 64 /* __NEW_UTS_LEN */
extern int r2nm_init(void);
#endif /* _RAMSTER_NODEMANAGER_H */

6
drivers/staging/zcache/tmem.c
View file

@ -35,7 +35,8 @@
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/atomic.h>
#ifdef CONFIG_RAMSTER
#include <linux/export.h>
#if defined(CONFIG_RAMSTER) || defined(CONFIG_RAMSTER_MODULE)
#include <linux/delay.h>
#endif
@ -641,6 +642,7 @@ void *tmem_localify_get_pampd(struct tmem_pool *pool, struct tmem_oid *oidp,
/* note, hashbucket remains locked */
return pampd;
}
EXPORT_SYMBOL_GPL(tmem_localify_get_pampd);
void tmem_localify_finish(struct tmem_obj *obj, uint32_t index,
void *pampd, void *saved_hb, bool delete)
@ -658,6 +660,7 @@ void tmem_localify_finish(struct tmem_obj *obj, uint32_t index,
}
spin_unlock(&hb->lock);
}
EXPORT_SYMBOL_GPL(tmem_localify_finish);
/*
* For ramster only. Helper function to support asynchronous tmem_get.
@ -719,6 +722,7 @@ int tmem_replace(struct tmem_pool *pool, struct tmem_oid *oidp,
spin_unlock(&hb->lock);
return ret;
}
EXPORT_SYMBOL_GPL(tmem_replace);
#endif
/*

8
drivers/staging/zcache/tmem.h
View file

@ -126,7 +126,7 @@ static inline unsigned tmem_oid_hash(struct tmem_oid *oidp)
TMEM_HASH_BUCKET_BITS);
}
#ifdef CONFIG_RAMSTER
#if defined(CONFIG_RAMSTER) || defined(CONFIG_RAMSTER_MODULE)
struct tmem_xhandle {
uint8_t client_id;
uint8_t xh_data_cksum;
@ -171,7 +171,7 @@ struct tmem_obj {
unsigned int objnode_tree_height;
unsigned long objnode_count;
long pampd_count;
#ifdef CONFIG_RAMSTER
#if defined(CONFIG_RAMSTER) || defined(CONFIG_RAMSTER_MODULE)
/*
* for current design of ramster, all pages belonging to
* an object reside on the same remotenode and extra is
@ -215,7 +215,7 @@ struct tmem_pamops {
uint32_t);
void (*free)(void *, struct tmem_pool *,
struct tmem_oid *, uint32_t, bool);
#ifdef CONFIG_RAMSTER
#if defined(CONFIG_RAMSTER) || defined(CONFIG_RAMSTER_MODULE)
void (*new_obj)(struct tmem_obj *);
void (*free_obj)(struct tmem_pool *, struct tmem_obj *, bool);
void *(*repatriate_preload)(void *, struct tmem_pool *,
@ -247,7 +247,7 @@ extern int tmem_flush_page(struct tmem_pool *, struct tmem_oid *,
extern int tmem_flush_object(struct tmem_pool *, struct tmem_oid *);
extern int tmem_destroy_pool(struct tmem_pool *);
extern void tmem_new_pool(struct tmem_pool *, uint32_t);
#ifdef CONFIG_RAMSTER
#if defined(CONFIG_RAMSTER) || defined(CONFIG_RAMSTER_MODULE)
extern int tmem_replace(struct tmem_pool *, struct tmem_oid *, uint32_t index,
void *);
extern void *tmem_localify_get_pampd(struct tmem_pool *, struct tmem_oid *,

64
drivers/staging/zcache/zcache-main.c
View file

@ -37,8 +37,10 @@
#include "debug.h"
#ifdef CONFIG_RAMSTER
static bool ramster_enabled __read_mostly;
static int disable_frontswap_selfshrink;
#else
#define ramster_enabled false
#define disable_frontswap_selfshrink 0
#endif
#ifndef __PG_WAS_ACTIVE
@ -81,8 +83,12 @@ static char *namestr __read_mostly = "zcache";
(__GFP_FS | __GFP_NORETRY | __GFP_NOWARN | __GFP_NOMEMALLOC)
/* crypto API for zcache */
#ifdef CONFIG_ZCACHE_MODULE
static char *zcache_comp_name = "lzo";
#else
#define ZCACHE_COMP_NAME_SZ CRYPTO_MAX_ALG_NAME
static char zcache_comp_name[ZCACHE_COMP_NAME_SZ] __read_mostly;
#endif
static struct crypto_comp * __percpu *zcache_comp_pcpu_tfms __read_mostly;
enum comp_op {
@ -1576,9 +1582,9 @@ static struct cleancache_ops zcache_cleancache_ops = {
.init_fs = zcache_cleancache_init_fs
};
struct cleancache_ops zcache_cleancache_register_ops(void)
struct cleancache_ops *zcache_cleancache_register_ops(void)
{
struct cleancache_ops old_ops =
struct cleancache_ops *old_ops =
cleancache_register_ops(&zcache_cleancache_ops);
return old_ops;
@ -1707,9 +1713,9 @@ static struct frontswap_ops zcache_frontswap_ops = {
.init = zcache_frontswap_init
};
struct frontswap_ops zcache_frontswap_register_ops(void)
struct frontswap_ops *zcache_frontswap_register_ops(void)
{
struct frontswap_ops old_ops =
struct frontswap_ops *old_ops =
frontswap_register_ops(&zcache_frontswap_ops);
return old_ops;
@ -1721,6 +1727,7 @@ struct frontswap_ops zcache_frontswap_register_ops(void)
* OR NOTHING HAPPENS!
*/
#ifndef CONFIG_ZCACHE_MODULE
static int __init enable_zcache(char *s)
{
zcache_enabled = true;
@ -1787,18 +1794,27 @@ static int __init enable_zcache_compressor(char *s)
return 1;
}
__setup("zcache=", enable_zcache_compressor);
#endif
static int __init zcache_comp_init(void)
static int zcache_comp_init(void)
{
int ret = 0;
/* check crypto algorithm */
#ifdef CONFIG_ZCACHE_MODULE
ret = crypto_has_comp(zcache_comp_name, 0, 0);
if (!ret) {
ret = -1;
goto out;
}
#else
if (*zcache_comp_name != '\0') {
ret = crypto_has_comp(zcache_comp_name, 0, 0);
if (!ret)
pr_info("zcache: %s not supported\n",
zcache_comp_name);
goto out;
}
if (!ret)
strcpy(zcache_comp_name, "lzo");
@ -1807,6 +1823,7 @@ static int __init zcache_comp_init(void)
ret = 1;
goto out;
}
#endif
pr_info("zcache: using %s compressor\n", zcache_comp_name);
/* alloc percpu transforms */
@ -1818,10 +1835,13 @@ static int __init zcache_comp_init(void)
return ret;
}
static int __init zcache_init(void)
static int zcache_init(void)
{
int ret = 0;
#ifdef CONFIG_ZCACHE_MODULE
zcache_enabled = 1;
#endif
if (ramster_enabled) {
namestr = "ramster";
ramster_register_pamops(&zcache_pamops);
@ -1860,7 +1880,7 @@ static int __init zcache_init(void)
}
zbud_init();
if (zcache_enabled && !disable_cleancache) {
struct cleancache_ops old_ops;
struct cleancache_ops *old_ops;
register_shrinker(&zcache_shrinker);
old_ops = zcache_cleancache_register_ops();
@ -1870,11 +1890,11 @@ static int __init zcache_init(void)
pr_info("%s: cleancache: ignorenonactive = %d\n",
namestr, !disable_cleancache_ignore_nonactive);
#endif
if (old_ops.init_fs != NULL)
if (old_ops != NULL)
pr_warn("%s: cleancache_ops overridden\n", namestr);
}
if (zcache_enabled && !disable_frontswap) {
struct frontswap_ops old_ops;
struct frontswap_ops *old_ops;
old_ops = zcache_frontswap_register_ops();
if (frontswap_has_exclusive_gets)
@ -1886,14 +1906,36 @@ static int __init zcache_init(void)
namestr, frontswap_has_exclusive_gets,
!disable_frontswap_ignore_nonactive);
#endif
if (old_ops.init != NULL)
if (IS_ERR(old_ops) || old_ops) {
if (IS_ERR(old_ops))
return PTR_RET(old_ops);
pr_warn("%s: frontswap_ops overridden\n", namestr);
}
}
if (ramster_enabled)
ramster_init(!disable_cleancache, !disable_frontswap,
frontswap_has_exclusive_gets);
frontswap_has_exclusive_gets,
!disable_frontswap_selfshrink);
out:
return ret;
}
#ifdef CONFIG_ZCACHE_MODULE
#ifdef CONFIG_RAMSTER
module_param(ramster_enabled, int, S_IRUGO);
module_param(disable_frontswap_selfshrink, int, S_IRUGO);
#endif
module_param(disable_cleancache, int, S_IRUGO);
module_param(disable_frontswap, int, S_IRUGO);
#ifdef FRONTSWAP_HAS_EXCLUSIVE_GETS
module_param(frontswap_has_exclusive_gets, bool, S_IRUGO);
#endif
module_param(disable_frontswap_ignore_nonactive, int, S_IRUGO);
module_param(zcache_comp_name, charp, S_IRUGO);
module_init(zcache_init);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Dan Magenheimer <dan.magenheimer@oracle.com>");
MODULE_DESCRIPTION("In-kernel compression of cleancache/frontswap pages");
#else
late_initcall(zcache_init);
#endif

2
drivers/staging/zcache/zcache.h
View file

@ -39,7 +39,7 @@ extern int zcache_flush_page(int, int, struct tmem_oid *, uint32_t);
extern int zcache_flush_object(int, int, struct tmem_oid *);
extern void zcache_decompress_to_page(char *, unsigned int, struct page *);
#ifdef CONFIG_RAMSTER
#if defined(CONFIG_RAMSTER) || defined(CONFIG_RAMSTER_MODULE)
extern void *zcache_pampd_create(char *, unsigned int, bool, int,
struct tmem_handle *);
int zcache_autocreate_pool(unsigned int cli_id, unsigned int pool_id, bool eph);

5
drivers/usb/storage/realtek_cr.c
View file

@ -933,14 +933,11 @@ static int realtek_cr_autosuspend_setup(struct us_data *us)
static void realtek_cr_destructor(void *extra)
{
struct rts51x_chip *chip = (struct rts51x_chip *)extra;
struct us_data *us;
struct rts51x_chip *chip = extra;
if (!chip)
return;
us = chip->us;
#ifdef CONFIG_REALTEK_AUTOPM
if (ss_en) {
del_timer(&chip->rts51x_suspend_timer);

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