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fix a race condition in the sched_use_tsc patch

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@2483 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2005-11-14 10:52:06 +00:00
parent d6173281ea
commit 97664d4cb5
2 changed files with 20 additions and 18 deletions
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19
openwrt/target/linux/linux-2.4/patches/ar7/006-sched_use_tsc.patch
View File

@ -1,7 +1,7 @@
diff -urN linux.old/arch/mips/kernel/time.c linux.dev/arch/mips/kernel/time.c diff -urN linux.old/arch/mips/kernel/time.c linux.dev/arch/mips/kernel/time.c
--- linux.old/arch/mips/kernel/time.c 2005-01-19 15:09:29.000000000 +0100 --- linux.old/arch/mips/kernel/time.c 2005-11-14 11:06:38.661262000 +0100
+++ linux.dev/arch/mips/kernel/time.c 2005-11-09 23:10:04.233756250 +0100 +++ linux.dev/arch/mips/kernel/time.c 2005-11-14 11:10:42.856523250 +0100
@@ -151,6 +150,15 @@ @@ -151,6 +151,16 @@
unsigned int (*mips_hpt_read)(void); unsigned int (*mips_hpt_read)(void);
void (*mips_hpt_init)(unsigned int); void (*mips_hpt_init)(unsigned int);
@ -12,20 +12,21 @@ diff -urN linux.old/arch/mips/kernel/time.c linux.dev/arch/mips/kernel/time.c
+ +
+extern __u64 get_tscll(void) +extern __u64 get_tscll(void)
+{ +{
+ return (((__u64) timerhi) << 32) | ((__u64) ((__u32) read_c0_count())); + __u32 c = read_c0_count();
+ return ((((__u64) timerhi) + (c < timerlo)) << 32) | ((__u64) ((__u32) c));
+} +}
/* /*
* timeofday services, for syscalls. * timeofday services, for syscalls.
@@ -761,3 +769,5 @@ @@ -761,3 +771,5 @@
EXPORT_SYMBOL(to_tm); EXPORT_SYMBOL(to_tm);
EXPORT_SYMBOL(rtc_set_time); EXPORT_SYMBOL(rtc_set_time);
EXPORT_SYMBOL(rtc_get_time); EXPORT_SYMBOL(rtc_get_time);
+EXPORT_SYMBOL(get_htscl); +EXPORT_SYMBOL(get_htscl);
+EXPORT_SYMBOL(get_tscll); +EXPORT_SYMBOL(get_tscll);
diff -urN linux.old/include/asm-mips/timex.h linux.dev/include/asm-mips/timex.h diff -urN linux.old/include/asm-mips/timex.h linux.dev/include/asm-mips/timex.h
--- linux.old/include/asm-mips/timex.h 2003-08-25 13:44:44.000000000 +0200 --- linux.old/include/asm-mips/timex.h 2005-11-14 11:06:38.685263500 +0100
+++ linux.dev/include/asm-mips/timex.h 2005-11-09 22:15:59.352633250 +0100 +++ linux.dev/include/asm-mips/timex.h 2005-11-14 11:02:21.069163500 +0100
@@ -31,6 +31,19 @@ @@ -31,6 +31,19 @@
return read_c0_count(); return read_c0_count();
} }
@ -47,8 +48,8 @@ diff -urN linux.old/include/asm-mips/timex.h linux.dev/include/asm-mips/timex.h
#define vxtime_unlock() do {} while (0) #define vxtime_unlock() do {} while (0)
diff -urN linux.old/include/net/pkt_sched.h linux.dev/include/net/pkt_sched.h diff -urN linux.old/include/net/pkt_sched.h linux.dev/include/net/pkt_sched.h
--- linux.old/include/net/pkt_sched.h 2005-11-09 21:25:10.686721000 +0100 --- linux.old/include/net/pkt_sched.h 2005-11-14 11:06:38.709265000 +0100
+++ linux.dev/include/net/pkt_sched.h 2005-11-09 21:54:26.063807750 +0100 +++ linux.dev/include/net/pkt_sched.h 2005-11-14 11:02:21.069163500 +0100
@@ -5,7 +5,11 @@ @@ -5,7 +5,11 @@
#define PSCHED_JIFFIES 2 #define PSCHED_JIFFIES 2
#define PSCHED_CPU 3 #define PSCHED_CPU 3

19
openwrt/target/linux/linux-2.4/patches/brcm/007-sched_use_tsc.patch
View File

@ -1,7 +1,7 @@
diff -urN linux.old/arch/mips/kernel/time.c linux.dev/arch/mips/kernel/time.c diff -urN linux.old/arch/mips/kernel/time.c linux.dev/arch/mips/kernel/time.c
--- linux.old/arch/mips/kernel/time.c 2005-01-19 15:09:29.000000000 +0100 --- linux.old/arch/mips/kernel/time.c 2005-11-14 11:06:38.661262000 +0100
+++ linux.dev/arch/mips/kernel/time.c 2005-11-09 23:10:04.233756250 +0100 +++ linux.dev/arch/mips/kernel/time.c 2005-11-14 11:10:42.856523250 +0100
@@ -151,6 +150,15 @@ @@ -151,6 +151,16 @@
unsigned int (*mips_hpt_read)(void); unsigned int (*mips_hpt_read)(void);
void (*mips_hpt_init)(unsigned int); void (*mips_hpt_init)(unsigned int);
@ -12,20 +12,21 @@ diff -urN linux.old/arch/mips/kernel/time.c linux.dev/arch/mips/kernel/time.c
+ +
+extern __u64 get_tscll(void) +extern __u64 get_tscll(void)
+{ +{
+ return (((__u64) timerhi) << 32) | ((__u64) ((__u32) read_c0_count())); + __u32 c = read_c0_count();
+ return ((((__u64) timerhi) + (c < timerlo)) << 32) | ((__u64) ((__u32) c));
+} +}
/* /*
* timeofday services, for syscalls. * timeofday services, for syscalls.
@@ -761,3 +769,5 @@ @@ -761,3 +771,5 @@
EXPORT_SYMBOL(to_tm); EXPORT_SYMBOL(to_tm);
EXPORT_SYMBOL(rtc_set_time); EXPORT_SYMBOL(rtc_set_time);
EXPORT_SYMBOL(rtc_get_time); EXPORT_SYMBOL(rtc_get_time);
+EXPORT_SYMBOL(get_htscl); +EXPORT_SYMBOL(get_htscl);
+EXPORT_SYMBOL(get_tscll); +EXPORT_SYMBOL(get_tscll);
diff -urN linux.old/include/asm-mips/timex.h linux.dev/include/asm-mips/timex.h diff -urN linux.old/include/asm-mips/timex.h linux.dev/include/asm-mips/timex.h
--- linux.old/include/asm-mips/timex.h 2003-08-25 13:44:44.000000000 +0200 --- linux.old/include/asm-mips/timex.h 2005-11-14 11:06:38.685263500 +0100
+++ linux.dev/include/asm-mips/timex.h 2005-11-09 22:15:59.352633250 +0100 +++ linux.dev/include/asm-mips/timex.h 2005-11-14 11:02:21.069163500 +0100
@@ -31,6 +31,19 @@ @@ -31,6 +31,19 @@
return read_c0_count(); return read_c0_count();
} }
@ -47,8 +48,8 @@ diff -urN linux.old/include/asm-mips/timex.h linux.dev/include/asm-mips/timex.h
#define vxtime_unlock() do {} while (0) #define vxtime_unlock() do {} while (0)
diff -urN linux.old/include/net/pkt_sched.h linux.dev/include/net/pkt_sched.h diff -urN linux.old/include/net/pkt_sched.h linux.dev/include/net/pkt_sched.h
--- linux.old/include/net/pkt_sched.h 2005-11-09 21:25:10.686721000 +0100 --- linux.old/include/net/pkt_sched.h 2005-11-14 11:06:38.709265000 +0100
+++ linux.dev/include/net/pkt_sched.h 2005-11-09 21:54:26.063807750 +0100 +++ linux.dev/include/net/pkt_sched.h 2005-11-14 11:02:21.069163500 +0100
@@ -5,7 +5,11 @@ @@ -5,7 +5,11 @@
#define PSCHED_JIFFIES 2 #define PSCHED_JIFFIES 2
#define PSCHED_CPU 3 #define PSCHED_CPU 3