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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-31 20:52:04 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-31 20:52:04 -0400
commit19788a900803138a4c7c997eb5e9c27f9d17667e (patch)
tree6341e3143a1c35bdc095d4086f5c0c9342904944 /kernel
parent06693f305e60202d2795a10bee7fb7da23bc2acc (diff)
parent33cb876e947b9ddda8dca3fb99234b743a597ef9 (diff)
Merge branch 'akpm' (patches from Andrew Morton)
Merge more patches from Andrew Morton: "A bunch of fixes. Plus Joe's printk move and rework. It's not a -rc3 thing but now would be a nice time to offload it, while things are quiet. I've been sitting on it all for a couple of weeks, no issues" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: vmpressure: make sure there are no events queued after memcg is offlined vmpressure: do not check for pending work to prevent from new work vmpressure: change vmpressure::sr_lock to spinlock printk: rename struct log to struct printk_log printk: use pointer for console_cmdline indexing printk: move braille console support into separate braille.[ch] files printk: add console_cmdline.h printk: move to separate directory for easier modification drivers/rtc/rtc-twl.c: fix: rtcX/wakealarm attribute isn't created mm: zbud: fix condition check on allocation size thp, mm: avoid PageUnevictable on active/inactive lru lists mm/swap.c: clear PageActive before adding pages onto unevictable list arch/x86/platform/ce4100/ce4100.c: include reboot.h mm: sched: numa: fix NUMA balancing when !SCHED_DEBUG rapidio: fix use after free in rio_unregister_scan() .gitignore: ignore *.lz4 files MAINTAINERS: dynamic debug: Jason's not there... dmi_scan: add comments on dmi_present() and the loop in dmi_scan_machine() ocfs2/refcounttree: add the missing NULL check of the return value of find_or_create_page() mm: mempolicy: fix mbind_range() && vma_adjust() interaction
Diffstat (limited to 'kernel')
-rw-r--r--kernel/Makefile3
-rw-r--r--kernel/printk/Makefile2
-rw-r--r--kernel/printk/braille.c48
-rw-r--r--kernel/printk/braille.h48
-rw-r--r--kernel/printk/console_cmdline.h14
-rw-r--r--kernel/printk/printk.c (renamed from kernel/printk.c)183
-rw-r--r--kernel/sched/fair.c4
7 files changed, 197 insertions, 105 deletions
diff --git a/kernel/Makefile b/kernel/Makefile
index 470839d1a30e..35ef1185e359 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -2,7 +2,7 @@
2# Makefile for the linux kernel. 2# Makefile for the linux kernel.
3# 3#
4 4
5obj-y = fork.o exec_domain.o panic.o printk.o \ 5obj-y = fork.o exec_domain.o panic.o \
6 cpu.o exit.o itimer.o time.o softirq.o resource.o \ 6 cpu.o exit.o itimer.o time.o softirq.o resource.o \
7 sysctl.o sysctl_binary.o capability.o ptrace.o timer.o user.o \ 7 sysctl.o sysctl_binary.o capability.o ptrace.o timer.o user.o \
8 signal.o sys.o kmod.o workqueue.o pid.o task_work.o \ 8 signal.o sys.o kmod.o workqueue.o pid.o task_work.o \
@@ -24,6 +24,7 @@ endif
24 24
25obj-y += sched/ 25obj-y += sched/
26obj-y += power/ 26obj-y += power/
27obj-y += printk/
27obj-y += cpu/ 28obj-y += cpu/
28 29
29obj-$(CONFIG_CHECKPOINT_RESTORE) += kcmp.o 30obj-$(CONFIG_CHECKPOINT_RESTORE) += kcmp.o
diff --git a/kernel/printk/Makefile b/kernel/printk/Makefile
new file mode 100644
index 000000000000..85405bdcf2b3
--- /dev/null
+++ b/kernel/printk/Makefile
@@ -0,0 +1,2 @@
1obj-y = printk.o
2obj-$(CONFIG_A11Y_BRAILLE_CONSOLE) += braille.o
diff --git a/kernel/printk/braille.c b/kernel/printk/braille.c
new file mode 100644
index 000000000000..b51087fb9ace
--- /dev/null
+++ b/kernel/printk/braille.c
@@ -0,0 +1,48 @@
1#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
2
3#include <linux/kernel.h>
4#include <linux/console.h>
5#include <linux/string.h>
6
7#include "console_cmdline.h"
8#include "braille.h"
9
10char *_braille_console_setup(char **str, char **brl_options)
11{
12 if (!memcmp(*str, "brl,", 4)) {
13 *brl_options = "";
14 *str += 4;
15 } else if (!memcmp(str, "brl=", 4)) {
16 *brl_options = *str + 4;
17 *str = strchr(*brl_options, ',');
18 if (!*str)
19 pr_err("need port name after brl=\n");
20 else
21 *((*str)++) = 0;
22 }
23
24 return *str;
25}
26
27int
28_braille_register_console(struct console *console, struct console_cmdline *c)
29{
30 int rtn = 0;
31
32 if (c->brl_options) {
33 console->flags |= CON_BRL;
34 rtn = braille_register_console(console, c->index, c->options,
35 c->brl_options);
36 }
37
38 return rtn;
39}
40
41int
42_braille_unregister_console(struct console *console)
43{
44 if (console->flags & CON_BRL)
45 return braille_unregister_console(console);
46
47 return 0;
48}
diff --git a/kernel/printk/braille.h b/kernel/printk/braille.h
new file mode 100644
index 000000000000..769d771145c8
--- /dev/null
+++ b/kernel/printk/braille.h
@@ -0,0 +1,48 @@
1#ifndef _PRINTK_BRAILLE_H
2#define _PRINTK_BRAILLE_H
3
4#ifdef CONFIG_A11Y_BRAILLE_CONSOLE
5
6static inline void
7braille_set_options(struct console_cmdline *c, char *brl_options)
8{
9 c->brl_options = brl_options;
10}
11
12char *
13_braille_console_setup(char **str, char **brl_options);
14
15int
16_braille_register_console(struct console *console, struct console_cmdline *c);
17
18int
19_braille_unregister_console(struct console *console);
20
21#else
22
23static inline void
24braille_set_options(struct console_cmdline *c, char *brl_options)
25{
26}
27
28static inline char *
29_braille_console_setup(char **str, char **brl_options)
30{
31 return NULL;
32}
33
34static inline int
35_braille_register_console(struct console *console, struct console_cmdline *c)
36{
37 return 0;
38}
39
40static inline int
41_braille_unregister_console(struct console *console)
42{
43 return 0;
44}
45
46#endif
47
48#endif
diff --git a/kernel/printk/console_cmdline.h b/kernel/printk/console_cmdline.h
new file mode 100644
index 000000000000..cbd69d842341
--- /dev/null
+++ b/kernel/printk/console_cmdline.h
@@ -0,0 +1,14 @@
1#ifndef _CONSOLE_CMDLINE_H
2#define _CONSOLE_CMDLINE_H
3
4struct console_cmdline
5{
6 char name[8]; /* Name of the driver */
7 int index; /* Minor dev. to use */
8 char *options; /* Options for the driver */
9#ifdef CONFIG_A11Y_BRAILLE_CONSOLE
10 char *brl_options; /* Options for braille driver */
11#endif
12};
13
14#endif
diff --git a/kernel/printk.c b/kernel/printk/printk.c
index 69b0890ed7e5..5b5a7080e2a5 100644
--- a/kernel/printk.c
+++ b/kernel/printk/printk.c
@@ -51,6 +51,9 @@
51#define CREATE_TRACE_POINTS 51#define CREATE_TRACE_POINTS
52#include <trace/events/printk.h> 52#include <trace/events/printk.h>
53 53
54#include "console_cmdline.h"
55#include "braille.h"
56
54/* printk's without a loglevel use this.. */ 57/* printk's without a loglevel use this.. */
55#define DEFAULT_MESSAGE_LOGLEVEL CONFIG_DEFAULT_MESSAGE_LOGLEVEL 58#define DEFAULT_MESSAGE_LOGLEVEL CONFIG_DEFAULT_MESSAGE_LOGLEVEL
56 59
@@ -105,19 +108,11 @@ static struct console *exclusive_console;
105/* 108/*
106 * Array of consoles built from command line options (console=) 109 * Array of consoles built from command line options (console=)
107 */ 110 */
108struct console_cmdline
109{
110 char name[8]; /* Name of the driver */
111 int index; /* Minor dev. to use */
112 char *options; /* Options for the driver */
113#ifdef CONFIG_A11Y_BRAILLE_CONSOLE
114 char *brl_options; /* Options for braille driver */
115#endif
116};
117 111
118#define MAX_CMDLINECONSOLES 8 112#define MAX_CMDLINECONSOLES 8
119 113
120static struct console_cmdline console_cmdline[MAX_CMDLINECONSOLES]; 114static struct console_cmdline console_cmdline[MAX_CMDLINECONSOLES];
115
121static int selected_console = -1; 116static int selected_console = -1;
122static int preferred_console = -1; 117static int preferred_console = -1;
123int console_set_on_cmdline; 118int console_set_on_cmdline;
@@ -178,7 +173,7 @@ static int console_may_schedule;
178 * 67 "g" 173 * 67 "g"
179 * 0032 00 00 00 padding to next message header 174 * 0032 00 00 00 padding to next message header
180 * 175 *
181 * The 'struct log' buffer header must never be directly exported to 176 * The 'struct printk_log' buffer header must never be directly exported to
182 * userspace, it is a kernel-private implementation detail that might 177 * userspace, it is a kernel-private implementation detail that might
183 * need to be changed in the future, when the requirements change. 178 * need to be changed in the future, when the requirements change.
184 * 179 *
@@ -200,7 +195,7 @@ enum log_flags {
200 LOG_CONT = 8, /* text is a fragment of a continuation line */ 195 LOG_CONT = 8, /* text is a fragment of a continuation line */
201}; 196};
202 197
203struct log { 198struct printk_log {
204 u64 ts_nsec; /* timestamp in nanoseconds */ 199 u64 ts_nsec; /* timestamp in nanoseconds */
205 u16 len; /* length of entire record */ 200 u16 len; /* length of entire record */
206 u16 text_len; /* length of text buffer */ 201 u16 text_len; /* length of text buffer */
@@ -248,7 +243,7 @@ static u32 clear_idx;
248#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) 243#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
249#define LOG_ALIGN 4 244#define LOG_ALIGN 4
250#else 245#else
251#define LOG_ALIGN __alignof__(struct log) 246#define LOG_ALIGN __alignof__(struct printk_log)
252#endif 247#endif
253#define __LOG_BUF_LEN (1 << CONFIG_LOG_BUF_SHIFT) 248#define __LOG_BUF_LEN (1 << CONFIG_LOG_BUF_SHIFT)
254static char __log_buf[__LOG_BUF_LEN] __aligned(LOG_ALIGN); 249static char __log_buf[__LOG_BUF_LEN] __aligned(LOG_ALIGN);
@@ -259,35 +254,35 @@ static u32 log_buf_len = __LOG_BUF_LEN;
259static volatile unsigned int logbuf_cpu = UINT_MAX; 254static volatile unsigned int logbuf_cpu = UINT_MAX;
260 255
261/* human readable text of the record */ 256/* human readable text of the record */
262static char *log_text(const struct log *msg) 257static char *log_text(const struct printk_log *msg)
263{ 258{
264 return (char *)msg + sizeof(struct log); 259 return (char *)msg + sizeof(struct printk_log);
265} 260}
266 261
267/* optional key/value pair dictionary attached to the record */ 262/* optional key/value pair dictionary attached to the record */
268static char *log_dict(const struct log *msg) 263static char *log_dict(const struct printk_log *msg)
269{ 264{
270 return (char *)msg + sizeof(struct log) + msg->text_len; 265 return (char *)msg + sizeof(struct printk_log) + msg->text_len;
271} 266}
272 267
273/* get record by index; idx must point to valid msg */ 268/* get record by index; idx must point to valid msg */
274static struct log *log_from_idx(u32 idx) 269static struct printk_log *log_from_idx(u32 idx)
275{ 270{
276 struct log *msg = (struct log *)(log_buf + idx); 271 struct printk_log *msg = (struct printk_log *)(log_buf + idx);
277 272
278 /* 273 /*
279 * A length == 0 record is the end of buffer marker. Wrap around and 274 * A length == 0 record is the end of buffer marker. Wrap around and
280 * read the message at the start of the buffer. 275 * read the message at the start of the buffer.
281 */ 276 */
282 if (!msg->len) 277 if (!msg->len)
283 return (struct log *)log_buf; 278 return (struct printk_log *)log_buf;
284 return msg; 279 return msg;
285} 280}
286 281
287/* get next record; idx must point to valid msg */ 282/* get next record; idx must point to valid msg */
288static u32 log_next(u32 idx) 283static u32 log_next(u32 idx)
289{ 284{
290 struct log *msg = (struct log *)(log_buf + idx); 285 struct printk_log *msg = (struct printk_log *)(log_buf + idx);
291 286
292 /* length == 0 indicates the end of the buffer; wrap */ 287 /* length == 0 indicates the end of the buffer; wrap */
293 /* 288 /*
@@ -296,7 +291,7 @@ static u32 log_next(u32 idx)
296 * return the one after that. 291 * return the one after that.
297 */ 292 */
298 if (!msg->len) { 293 if (!msg->len) {
299 msg = (struct log *)log_buf; 294 msg = (struct printk_log *)log_buf;
300 return msg->len; 295 return msg->len;
301 } 296 }
302 return idx + msg->len; 297 return idx + msg->len;
@@ -308,11 +303,11 @@ static void log_store(int facility, int level,
308 const char *dict, u16 dict_len, 303 const char *dict, u16 dict_len,
309 const char *text, u16 text_len) 304 const char *text, u16 text_len)
310{ 305{
311 struct log *msg; 306 struct printk_log *msg;
312 u32 size, pad_len; 307 u32 size, pad_len;
313 308
314 /* number of '\0' padding bytes to next message */ 309 /* number of '\0' padding bytes to next message */
315 size = sizeof(struct log) + text_len + dict_len; 310 size = sizeof(struct printk_log) + text_len + dict_len;
316 pad_len = (-size) & (LOG_ALIGN - 1); 311 pad_len = (-size) & (LOG_ALIGN - 1);
317 size += pad_len; 312 size += pad_len;
318 313
@@ -324,7 +319,7 @@ static void log_store(int facility, int level,
324 else 319 else
325 free = log_first_idx - log_next_idx; 320 free = log_first_idx - log_next_idx;
326 321
327 if (free > size + sizeof(struct log)) 322 if (free > size + sizeof(struct printk_log))
328 break; 323 break;
329 324
330 /* drop old messages until we have enough contiuous space */ 325 /* drop old messages until we have enough contiuous space */
@@ -332,18 +327,18 @@ static void log_store(int facility, int level,
332 log_first_seq++; 327 log_first_seq++;
333 } 328 }
334 329
335 if (log_next_idx + size + sizeof(struct log) >= log_buf_len) { 330 if (log_next_idx + size + sizeof(struct printk_log) >= log_buf_len) {
336 /* 331 /*
337 * This message + an additional empty header does not fit 332 * This message + an additional empty header does not fit
338 * at the end of the buffer. Add an empty header with len == 0 333 * at the end of the buffer. Add an empty header with len == 0
339 * to signify a wrap around. 334 * to signify a wrap around.
340 */ 335 */
341 memset(log_buf + log_next_idx, 0, sizeof(struct log)); 336 memset(log_buf + log_next_idx, 0, sizeof(struct printk_log));
342 log_next_idx = 0; 337 log_next_idx = 0;
343 } 338 }
344 339
345 /* fill message */ 340 /* fill message */
346 msg = (struct log *)(log_buf + log_next_idx); 341 msg = (struct printk_log *)(log_buf + log_next_idx);
347 memcpy(log_text(msg), text, text_len); 342 memcpy(log_text(msg), text, text_len);
348 msg->text_len = text_len; 343 msg->text_len = text_len;
349 memcpy(log_dict(msg), dict, dict_len); 344 memcpy(log_dict(msg), dict, dict_len);
@@ -356,7 +351,7 @@ static void log_store(int facility, int level,
356 else 351 else
357 msg->ts_nsec = local_clock(); 352 msg->ts_nsec = local_clock();
358 memset(log_dict(msg) + dict_len, 0, pad_len); 353 memset(log_dict(msg) + dict_len, 0, pad_len);
359 msg->len = sizeof(struct log) + text_len + dict_len + pad_len; 354 msg->len = sizeof(struct printk_log) + text_len + dict_len + pad_len;
360 355
361 /* insert message */ 356 /* insert message */
362 log_next_idx += msg->len; 357 log_next_idx += msg->len;
@@ -479,7 +474,7 @@ static ssize_t devkmsg_read(struct file *file, char __user *buf,
479 size_t count, loff_t *ppos) 474 size_t count, loff_t *ppos)
480{ 475{
481 struct devkmsg_user *user = file->private_data; 476 struct devkmsg_user *user = file->private_data;
482 struct log *msg; 477 struct printk_log *msg;
483 u64 ts_usec; 478 u64 ts_usec;
484 size_t i; 479 size_t i;
485 char cont = '-'; 480 char cont = '-';
@@ -724,14 +719,14 @@ void log_buf_kexec_setup(void)
724 VMCOREINFO_SYMBOL(log_first_idx); 719 VMCOREINFO_SYMBOL(log_first_idx);
725 VMCOREINFO_SYMBOL(log_next_idx); 720 VMCOREINFO_SYMBOL(log_next_idx);
726 /* 721 /*
727 * Export struct log size and field offsets. User space tools can 722 * Export struct printk_log size and field offsets. User space tools can
728 * parse it and detect any changes to structure down the line. 723 * parse it and detect any changes to structure down the line.
729 */ 724 */
730 VMCOREINFO_STRUCT_SIZE(log); 725 VMCOREINFO_STRUCT_SIZE(printk_log);
731 VMCOREINFO_OFFSET(log, ts_nsec); 726 VMCOREINFO_OFFSET(printk_log, ts_nsec);
732 VMCOREINFO_OFFSET(log, len); 727 VMCOREINFO_OFFSET(printk_log, len);
733 VMCOREINFO_OFFSET(log, text_len); 728 VMCOREINFO_OFFSET(printk_log, text_len);
734 VMCOREINFO_OFFSET(log, dict_len); 729 VMCOREINFO_OFFSET(printk_log, dict_len);
735} 730}
736#endif 731#endif
737 732
@@ -884,7 +879,7 @@ static size_t print_time(u64 ts, char *buf)
884 (unsigned long)ts, rem_nsec / 1000); 879 (unsigned long)ts, rem_nsec / 1000);
885} 880}
886 881
887static size_t print_prefix(const struct log *msg, bool syslog, char *buf) 882static size_t print_prefix(const struct printk_log *msg, bool syslog, char *buf)
888{ 883{
889 size_t len = 0; 884 size_t len = 0;
890 unsigned int prefix = (msg->facility << 3) | msg->level; 885 unsigned int prefix = (msg->facility << 3) | msg->level;
@@ -907,7 +902,7 @@ static size_t print_prefix(const struct log *msg, bool syslog, char *buf)
907 return len; 902 return len;
908} 903}
909 904
910static size_t msg_print_text(const struct log *msg, enum log_flags prev, 905static size_t msg_print_text(const struct printk_log *msg, enum log_flags prev,
911 bool syslog, char *buf, size_t size) 906 bool syslog, char *buf, size_t size)
912{ 907{
913 const char *text = log_text(msg); 908 const char *text = log_text(msg);
@@ -969,7 +964,7 @@ static size_t msg_print_text(const struct log *msg, enum log_flags prev,
969static int syslog_print(char __user *buf, int size) 964static int syslog_print(char __user *buf, int size)
970{ 965{
971 char *text; 966 char *text;
972 struct log *msg; 967 struct printk_log *msg;
973 int len = 0; 968 int len = 0;
974 969
975 text = kmalloc(LOG_LINE_MAX + PREFIX_MAX, GFP_KERNEL); 970 text = kmalloc(LOG_LINE_MAX + PREFIX_MAX, GFP_KERNEL);
@@ -1060,7 +1055,7 @@ static int syslog_print_all(char __user *buf, int size, bool clear)
1060 idx = clear_idx; 1055 idx = clear_idx;
1061 prev = 0; 1056 prev = 0;
1062 while (seq < log_next_seq) { 1057 while (seq < log_next_seq) {
1063 struct log *msg = log_from_idx(idx); 1058 struct printk_log *msg = log_from_idx(idx);
1064 1059
1065 len += msg_print_text(msg, prev, true, NULL, 0); 1060 len += msg_print_text(msg, prev, true, NULL, 0);
1066 prev = msg->flags; 1061 prev = msg->flags;
@@ -1073,7 +1068,7 @@ static int syslog_print_all(char __user *buf, int size, bool clear)
1073 idx = clear_idx; 1068 idx = clear_idx;
1074 prev = 0; 1069 prev = 0;
1075 while (len > size && seq < log_next_seq) { 1070 while (len > size && seq < log_next_seq) {
1076 struct log *msg = log_from_idx(idx); 1071 struct printk_log *msg = log_from_idx(idx);
1077 1072
1078 len -= msg_print_text(msg, prev, true, NULL, 0); 1073 len -= msg_print_text(msg, prev, true, NULL, 0);
1079 prev = msg->flags; 1074 prev = msg->flags;
@@ -1087,7 +1082,7 @@ static int syslog_print_all(char __user *buf, int size, bool clear)
1087 len = 0; 1082 len = 0;
1088 prev = 0; 1083 prev = 0;
1089 while (len >= 0 && seq < next_seq) { 1084 while (len >= 0 && seq < next_seq) {
1090 struct log *msg = log_from_idx(idx); 1085 struct printk_log *msg = log_from_idx(idx);
1091 int textlen; 1086 int textlen;
1092 1087
1093 textlen = msg_print_text(msg, prev, true, text, 1088 textlen = msg_print_text(msg, prev, true, text,
@@ -1233,7 +1228,7 @@ int do_syslog(int type, char __user *buf, int len, bool from_file)
1233 1228
1234 error = 0; 1229 error = 0;
1235 while (seq < log_next_seq) { 1230 while (seq < log_next_seq) {
1236 struct log *msg = log_from_idx(idx); 1231 struct printk_log *msg = log_from_idx(idx);
1237 1232
1238 error += msg_print_text(msg, prev, true, NULL, 0); 1233 error += msg_print_text(msg, prev, true, NULL, 0);
1239 idx = log_next(idx); 1234 idx = log_next(idx);
@@ -1719,10 +1714,10 @@ static struct cont {
1719 u8 level; 1714 u8 level;
1720 bool flushed:1; 1715 bool flushed:1;
1721} cont; 1716} cont;
1722static struct log *log_from_idx(u32 idx) { return NULL; } 1717static struct printk_log *log_from_idx(u32 idx) { return NULL; }
1723static u32 log_next(u32 idx) { return 0; } 1718static u32 log_next(u32 idx) { return 0; }
1724static void call_console_drivers(int level, const char *text, size_t len) {} 1719static void call_console_drivers(int level, const char *text, size_t len) {}
1725static size_t msg_print_text(const struct log *msg, enum log_flags prev, 1720static size_t msg_print_text(const struct printk_log *msg, enum log_flags prev,
1726 bool syslog, char *buf, size_t size) { return 0; } 1721 bool syslog, char *buf, size_t size) { return 0; }
1727static size_t cont_print_text(char *text, size_t size) { return 0; } 1722static size_t cont_print_text(char *text, size_t size) { return 0; }
1728 1723
@@ -1761,23 +1756,23 @@ static int __add_preferred_console(char *name, int idx, char *options,
1761 * See if this tty is not yet registered, and 1756 * See if this tty is not yet registered, and
1762 * if we have a slot free. 1757 * if we have a slot free.
1763 */ 1758 */
1764 for (i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0]; i++) 1759 for (i = 0, c = console_cmdline;
1765 if (strcmp(console_cmdline[i].name, name) == 0 && 1760 i < MAX_CMDLINECONSOLES && c->name[0];
1766 console_cmdline[i].index == idx) { 1761 i++, c++) {
1767 if (!brl_options) 1762 if (strcmp(c->name, name) == 0 && c->index == idx) {
1768 selected_console = i; 1763 if (!brl_options)
1769 return 0; 1764 selected_console = i;
1765 return 0;
1770 } 1766 }
1767 }
1771 if (i == MAX_CMDLINECONSOLES) 1768 if (i == MAX_CMDLINECONSOLES)
1772 return -E2BIG; 1769 return -E2BIG;
1773 if (!brl_options) 1770 if (!brl_options)
1774 selected_console = i; 1771 selected_console = i;
1775 c = &console_cmdline[i];
1776 strlcpy(c->name, name, sizeof(c->name)); 1772 strlcpy(c->name, name, sizeof(c->name));
1777 c->options = options; 1773 c->options = options;
1778#ifdef CONFIG_A11Y_BRAILLE_CONSOLE 1774 braille_set_options(c, brl_options);
1779 c->brl_options = brl_options; 1775
1780#endif
1781 c->index = idx; 1776 c->index = idx;
1782 return 0; 1777 return 0;
1783} 1778}
@@ -1790,20 +1785,8 @@ static int __init console_setup(char *str)
1790 char *s, *options, *brl_options = NULL; 1785 char *s, *options, *brl_options = NULL;
1791 int idx; 1786 int idx;
1792 1787
1793#ifdef CONFIG_A11Y_BRAILLE_CONSOLE 1788 if (_braille_console_setup(&str, &brl_options))
1794 if (!memcmp(str, "brl,", 4)) { 1789 return 1;
1795 brl_options = "";
1796 str += 4;
1797 } else if (!memcmp(str, "brl=", 4)) {
1798 brl_options = str + 4;
1799 str = strchr(brl_options, ',');
1800 if (!str) {
1801 printk(KERN_ERR "need port name after brl=\n");
1802 return 1;
1803 }
1804 *(str++) = 0;
1805 }
1806#endif
1807 1790
1808 /* 1791 /*
1809 * Decode str into name, index, options. 1792 * Decode str into name, index, options.
@@ -1858,15 +1841,15 @@ int update_console_cmdline(char *name, int idx, char *name_new, int idx_new, cha
1858 struct console_cmdline *c; 1841 struct console_cmdline *c;
1859 int i; 1842 int i;
1860 1843
1861 for (i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0]; i++) 1844 for (i = 0, c = console_cmdline;
1862 if (strcmp(console_cmdline[i].name, name) == 0 && 1845 i < MAX_CMDLINECONSOLES && c->name[0];
1863 console_cmdline[i].index == idx) { 1846 i++, c++)
1864 c = &console_cmdline[i]; 1847 if (strcmp(c->name, name) == 0 && c->index == idx) {
1865 strlcpy(c->name, name_new, sizeof(c->name)); 1848 strlcpy(c->name, name_new, sizeof(c->name));
1866 c->name[sizeof(c->name) - 1] = 0; 1849 c->name[sizeof(c->name) - 1] = 0;
1867 c->options = options; 1850 c->options = options;
1868 c->index = idx_new; 1851 c->index = idx_new;
1869 return i; 1852 return i;
1870 } 1853 }
1871 /* not found */ 1854 /* not found */
1872 return -1; 1855 return -1;
@@ -2046,7 +2029,7 @@ void console_unlock(void)
2046 console_cont_flush(text, sizeof(text)); 2029 console_cont_flush(text, sizeof(text));
2047again: 2030again:
2048 for (;;) { 2031 for (;;) {
2049 struct log *msg; 2032 struct printk_log *msg;
2050 size_t len; 2033 size_t len;
2051 int level; 2034 int level;
2052 2035
@@ -2241,6 +2224,7 @@ void register_console(struct console *newcon)
2241 int i; 2224 int i;
2242 unsigned long flags; 2225 unsigned long flags;
2243 struct console *bcon = NULL; 2226 struct console *bcon = NULL;
2227 struct console_cmdline *c;
2244 2228
2245 /* 2229 /*
2246 * before we register a new CON_BOOT console, make sure we don't 2230 * before we register a new CON_BOOT console, make sure we don't
@@ -2288,30 +2272,25 @@ void register_console(struct console *newcon)
2288 * See if this console matches one we selected on 2272 * See if this console matches one we selected on
2289 * the command line. 2273 * the command line.
2290 */ 2274 */
2291 for (i = 0; i < MAX_CMDLINECONSOLES && console_cmdline[i].name[0]; 2275 for (i = 0, c = console_cmdline;
2292 i++) { 2276 i < MAX_CMDLINECONSOLES && c->name[0];
2293 if (strcmp(console_cmdline[i].name, newcon->name) != 0) 2277 i++, c++) {
2278 if (strcmp(c->name, newcon->name) != 0)
2294 continue; 2279 continue;
2295 if (newcon->index >= 0 && 2280 if (newcon->index >= 0 &&
2296 newcon->index != console_cmdline[i].index) 2281 newcon->index != c->index)
2297 continue; 2282 continue;
2298 if (newcon->index < 0) 2283 if (newcon->index < 0)
2299 newcon->index = console_cmdline[i].index; 2284 newcon->index = c->index;
2300#ifdef CONFIG_A11Y_BRAILLE_CONSOLE 2285
2301 if (console_cmdline[i].brl_options) { 2286 if (_braille_register_console(newcon, c))
2302 newcon->flags |= CON_BRL;
2303 braille_register_console(newcon,
2304 console_cmdline[i].index,
2305 console_cmdline[i].options,
2306 console_cmdline[i].brl_options);
2307 return; 2287 return;
2308 } 2288
2309#endif
2310 if (newcon->setup && 2289 if (newcon->setup &&
2311 newcon->setup(newcon, console_cmdline[i].options) != 0) 2290 newcon->setup(newcon, console_cmdline[i].options) != 0)
2312 break; 2291 break;
2313 newcon->flags |= CON_ENABLED; 2292 newcon->flags |= CON_ENABLED;
2314 newcon->index = console_cmdline[i].index; 2293 newcon->index = c->index;
2315 if (i == selected_console) { 2294 if (i == selected_console) {
2316 newcon->flags |= CON_CONSDEV; 2295 newcon->flags |= CON_CONSDEV;
2317 preferred_console = selected_console; 2296 preferred_console = selected_console;
@@ -2394,13 +2373,13 @@ EXPORT_SYMBOL(register_console);
2394int unregister_console(struct console *console) 2373int unregister_console(struct console *console)
2395{ 2374{
2396 struct console *a, *b; 2375 struct console *a, *b;
2397 int res = 1; 2376 int res;
2398 2377
2399#ifdef CONFIG_A11Y_BRAILLE_CONSOLE 2378 res = _braille_unregister_console(console);
2400 if (console->flags & CON_BRL) 2379 if (res)
2401 return braille_unregister_console(console); 2380 return res;
2402#endif
2403 2381
2382 res = 1;
2404 console_lock(); 2383 console_lock();
2405 if (console_drivers == console) { 2384 if (console_drivers == console) {
2406 console_drivers=console->next; 2385 console_drivers=console->next;
@@ -2666,7 +2645,7 @@ void kmsg_dump(enum kmsg_dump_reason reason)
2666bool kmsg_dump_get_line_nolock(struct kmsg_dumper *dumper, bool syslog, 2645bool kmsg_dump_get_line_nolock(struct kmsg_dumper *dumper, bool syslog,
2667 char *line, size_t size, size_t *len) 2646 char *line, size_t size, size_t *len)
2668{ 2647{
2669 struct log *msg; 2648 struct printk_log *msg;
2670 size_t l = 0; 2649 size_t l = 0;
2671 bool ret = false; 2650 bool ret = false;
2672 2651
@@ -2778,7 +2757,7 @@ bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
2778 idx = dumper->cur_idx; 2757 idx = dumper->cur_idx;
2779 prev = 0; 2758 prev = 0;
2780 while (seq < dumper->next_seq) { 2759 while (seq < dumper->next_seq) {
2781 struct log *msg = log_from_idx(idx); 2760 struct printk_log *msg = log_from_idx(idx);
2782 2761
2783 l += msg_print_text(msg, prev, true, NULL, 0); 2762 l += msg_print_text(msg, prev, true, NULL, 0);
2784 idx = log_next(idx); 2763 idx = log_next(idx);
@@ -2791,7 +2770,7 @@ bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
2791 idx = dumper->cur_idx; 2770 idx = dumper->cur_idx;
2792 prev = 0; 2771 prev = 0;
2793 while (l > size && seq < dumper->next_seq) { 2772 while (l > size && seq < dumper->next_seq) {
2794 struct log *msg = log_from_idx(idx); 2773 struct printk_log *msg = log_from_idx(idx);
2795 2774
2796 l -= msg_print_text(msg, prev, true, NULL, 0); 2775 l -= msg_print_text(msg, prev, true, NULL, 0);
2797 idx = log_next(idx); 2776 idx = log_next(idx);
@@ -2806,7 +2785,7 @@ bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
2806 l = 0; 2785 l = 0;
2807 prev = 0; 2786 prev = 0;
2808 while (seq < dumper->next_seq) { 2787 while (seq < dumper->next_seq) {
2809 struct log *msg = log_from_idx(idx); 2788 struct printk_log *msg = log_from_idx(idx);
2810 2789
2811 l += msg_print_text(msg, prev, syslog, buf + l, size - l); 2790 l += msg_print_text(msg, prev, syslog, buf + l, size - l);
2812 idx = log_next(idx); 2791 idx = log_next(idx);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index bb456f44b7b1..9565645e3202 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -851,7 +851,7 @@ void task_numa_fault(int node, int pages, bool migrated)
851{ 851{
852 struct task_struct *p = current; 852 struct task_struct *p = current;
853 853
854 if (!sched_feat_numa(NUMA)) 854 if (!numabalancing_enabled)
855 return; 855 return;
856 856
857 /* FIXME: Allocate task-specific structure for placement policy here */ 857 /* FIXME: Allocate task-specific structure for placement policy here */
@@ -5786,7 +5786,7 @@ static void task_tick_fair(struct rq *rq, struct task_struct *curr, int queued)
5786 entity_tick(cfs_rq, se, queued); 5786 entity_tick(cfs_rq, se, queued);
5787 } 5787 }
5788 5788
5789 if (sched_feat_numa(NUMA)) 5789 if (numabalancing_enabled)
5790 task_tick_numa(rq, curr); 5790 task_tick_numa(rq, curr);
5791 5791
5792 update_rq_runnable_avg(rq, 1); 5792 update_rq_runnable_avg(rq, 1);