The patch titled rename div64_64 to div64_u64 has been added to the -mm tree. Its filename is rename-div64_64-to-div64_u64.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: rename div64_64 to div64_u64 From: Roman Zippel <zippel@xxxxxxxxxxxxxx> Rename div64_64 to div64_u64 to make it consistent with the other divide functions, so it clearly includes the type of the divide. Move its definition to math64.h as currently no architecture overrides the generic implementation. They can still override it of course, but the duplicated declarations are avoided. Signed-off-by: Roman Zippel <zippel@xxxxxxxxxxxxxx> Cc: Avi Kivity <avi@xxxxxxxxxxxx> Cc: Russell King <rmk@xxxxxxxxxxxxxxxx> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: David Howells <dhowells@xxxxxxxxxx> Cc: Jeff Dike <jdike@xxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx> Cc: Patrick McHardy <kaber@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/x86/kvm/lapic.c | 6 +++--- include/asm-arm/div64.h | 2 -- include/asm-generic/div64.h | 7 ------- include/asm-m68k/div64.h | 1 - include/asm-mips/div64.h | 6 ------ include/asm-mn10300/div64.h | 3 --- include/asm-um/div64.h | 1 - include/asm-x86/div64.h | 2 -- include/linux/math64.h | 12 ++++++++++++ kernel/sched.c | 6 +++--- kernel/sched_debug.c | 4 ++-- lib/div64.c | 12 ++++++------ net/ipv4/tcp_cubic.c | 4 ++-- net/netfilter/xt_connbytes.c | 5 ++--- 14 files changed, 30 insertions(+), 41 deletions(-) diff -puN arch/x86/kvm/lapic.c~rename-div64_64-to-div64_u64 arch/x86/kvm/lapic.c --- a/arch/x86/kvm/lapic.c~rename-div64_64-to-div64_u64 +++ a/arch/x86/kvm/lapic.c @@ -25,13 +25,13 @@ #include <linux/hrtimer.h> #include <linux/io.h> #include <linux/module.h> +#include <linux/math64.h> #include <asm/processor.h> #include <asm/msr.h> #include <asm/page.h> #include <asm/current.h> #include <asm/apicdef.h> #include <asm/atomic.h> -#include <asm/div64.h> #include "irq.h" #define PRId64 "d" @@ -526,8 +526,8 @@ static u32 apic_get_tmcct(struct kvm_lap } else passed = ktime_sub(now, apic->timer.last_update); - counter_passed = div64_64(ktime_to_ns(passed), - (APIC_BUS_CYCLE_NS * apic->timer.divide_count)); + counter_passed = div64_u64(ktime_to_ns(passed), + (APIC_BUS_CYCLE_NS * apic->timer.divide_count)); if (counter_passed > tmcct) { if (unlikely(!apic_lvtt_period(apic))) { diff -puN include/asm-arm/div64.h~rename-div64_64-to-div64_u64 include/asm-arm/div64.h --- a/include/asm-arm/div64.h~rename-div64_64-to-div64_u64 +++ a/include/asm-arm/div64.h @@ -224,6 +224,4 @@ #endif -extern uint64_t div64_64(uint64_t dividend, uint64_t divisor); - #endif diff -puN include/asm-generic/div64.h~rename-div64_64-to-div64_u64 include/asm-generic/div64.h --- a/include/asm-generic/div64.h~rename-div64_64-to-div64_u64 +++ a/include/asm-generic/div64.h @@ -30,11 +30,6 @@ __rem; \ }) -static inline uint64_t div64_64(uint64_t dividend, uint64_t divisor) -{ - return dividend / divisor; -} - #elif BITS_PER_LONG == 32 extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor); @@ -54,8 +49,6 @@ extern uint32_t __div64_32(uint64_t *div __rem; \ }) -extern uint64_t div64_64(uint64_t dividend, uint64_t divisor); - #else /* BITS_PER_LONG == ?? */ # error do_div() does not yet support the C64 diff -puN include/asm-m68k/div64.h~rename-div64_64-to-div64_u64 include/asm-m68k/div64.h --- a/include/asm-m68k/div64.h~rename-div64_64-to-div64_u64 +++ a/include/asm-m68k/div64.h @@ -25,5 +25,4 @@ __rem; \ }) -extern uint64_t div64_64(uint64_t dividend, uint64_t divisor); #endif /* _M68K_DIV64_H */ diff -puN include/asm-mips/div64.h~rename-div64_64-to-div64_u64 include/asm-mips/div64.h --- a/include/asm-mips/div64.h~rename-div64_64-to-div64_u64 +++ a/include/asm-mips/div64.h @@ -82,7 +82,6 @@ (n) = __quot; \ __mod; }) -extern uint64_t div64_64(uint64_t dividend, uint64_t divisor); #endif /* (_MIPS_SZLONG == 32) */ #if (_MIPS_SZLONG == 64) @@ -106,11 +105,6 @@ extern uint64_t div64_64(uint64_t divide (n) = __quot; \ __mod; }) -static inline uint64_t div64_64(uint64_t dividend, uint64_t divisor) -{ - return dividend / divisor; -} - #endif /* (_MIPS_SZLONG == 64) */ #endif /* _ASM_DIV64_H */ diff -puN include/asm-mn10300/div64.h~rename-div64_64-to-div64_u64 include/asm-mn10300/div64.h --- a/include/asm-mn10300/div64.h~rename-div64_64-to-div64_u64 +++ a/include/asm-mn10300/div64.h @@ -97,7 +97,4 @@ signed __muldiv64s(signed val, signed mu return result; } -extern __attribute__((const)) -uint64_t div64_64(uint64_t dividend, uint64_t divisor); - #endif /* _ASM_DIV64 */ diff -puN include/asm-um/div64.h~rename-div64_64-to-div64_u64 include/asm-um/div64.h --- a/include/asm-um/div64.h~rename-div64_64-to-div64_u64 +++ a/include/asm-um/div64.h @@ -3,5 +3,4 @@ #include "asm/arch/div64.h" -extern uint64_t div64_64(uint64_t dividend, uint64_t divisor); #endif diff -puN include/asm-x86/div64.h~rename-div64_64-to-div64_u64 include/asm-x86/div64.h --- a/include/asm-x86/div64.h~rename-div64_64-to-div64_u64 +++ a/include/asm-x86/div64.h @@ -70,8 +70,6 @@ static inline u64 div_u64_rem(u64 divide } #define div_u64_rem div_u64_rem -extern uint64_t div64_64(uint64_t dividend, uint64_t divisor); - #else # include <asm-generic/div64.h> #endif /* CONFIG_X86_32 */ diff -puN include/linux/math64.h~rename-div64_64-to-div64_u64 include/linux/math64.h --- a/include/linux/math64.h~rename-div64_64-to-div64_u64 +++ a/include/linux/math64.h @@ -27,6 +27,14 @@ static inline s64 div_s64_rem(s64 divide return dividend / divisor; } +/** + * div64_u64 - unsigned 64bit divide with 64bit divisor + */ +static inline u64 div64_u64(u64 dividend, u64 divisor) +{ + return dividend / divisor; +} + #elif BITS_PER_LONG == 32 #ifndef div_u64_rem @@ -41,6 +49,10 @@ static inline u64 div_u64_rem(u64 divide extern s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder); #endif +#ifndef div64_u64 +extern u64 div64_u64(u64 dividend, u64 divisor); +#endif + #endif /* BITS_PER_LONG */ /** diff -puN kernel/sched.c~rename-div64_64-to-div64_u64 kernel/sched.c --- a/kernel/sched.c~rename-div64_64-to-div64_u64 +++ a/kernel/sched.c @@ -7180,7 +7180,7 @@ static void init_tg_cfs_entry(struct rq se->cfs_rq = &rq->cfs; se->my_q = cfs_rq; se->load.weight = tg->shares; - se->load.inv_weight = div64_64(1ULL<<32, se->load.weight); + se->load.inv_weight = div64_u64(1ULL<<32, se->load.weight); se->parent = NULL; } #endif @@ -7718,7 +7718,7 @@ static void set_se_shares(struct sched_e dequeue_entity(cfs_rq, se, 0); se->load.weight = shares; - se->load.inv_weight = div64_64((1ULL<<32), shares); + se->load.inv_weight = div64_u64((1ULL<<32), shares); if (on_rq) enqueue_entity(cfs_rq, se, 0); @@ -7791,7 +7791,7 @@ static unsigned long to_ratio(u64 period if (runtime == RUNTIME_INF) return 1ULL << 16; - return div64_64(runtime << 16, period); + return div64_u64(runtime << 16, period); } static int __rt_schedulable(struct task_group *tg, u64 period, u64 runtime) diff -puN kernel/sched_debug.c~rename-div64_64-to-div64_u64 kernel/sched_debug.c --- a/kernel/sched_debug.c~rename-div64_64-to-div64_u64 +++ a/kernel/sched_debug.c @@ -331,8 +331,8 @@ void proc_sched_show_task(struct task_st avg_per_cpu = p->se.sum_exec_runtime; if (p->se.nr_migrations) { - avg_per_cpu = div64_64(avg_per_cpu, - p->se.nr_migrations); + avg_per_cpu = div64_u64(avg_per_cpu, + p->se.nr_migrations); } else { avg_per_cpu = -1LL; } diff -puN lib/div64.c~rename-div64_64-to-div64_u64 lib/div64.c --- a/lib/div64.c~rename-div64_64-to-div64_u64 +++ a/lib/div64.c @@ -78,9 +78,10 @@ EXPORT_SYMBOL(div_s64_rem); #endif /* 64bit divisor, dividend and result. dynamic precision */ -uint64_t div64_64(uint64_t dividend, uint64_t divisor) +#ifndef div64_u64 +u64 div64_u64(u64 dividend, u64 divisor) { - uint32_t high, d; + u32 high, d; high = divisor >> 32; if (high) { @@ -91,10 +92,9 @@ uint64_t div64_64(uint64_t dividend, uin } else d = divisor; - do_div(dividend, d); - - return dividend; + return div_u64(dividend, d); } -EXPORT_SYMBOL(div64_64); +EXPORT_SYMBOL(div64_u64); +#endif #endif /* BITS_PER_LONG == 32 */ diff -puN net/ipv4/tcp_cubic.c~rename-div64_64-to-div64_u64 net/ipv4/tcp_cubic.c --- a/net/ipv4/tcp_cubic.c~rename-div64_64-to-div64_u64 +++ a/net/ipv4/tcp_cubic.c @@ -14,8 +14,8 @@ #include <linux/mm.h> #include <linux/module.h> +#include <linux/math64.h> #include <net/tcp.h> -#include <asm/div64.h> #define BICTCP_BETA_SCALE 1024 /* Scale factor beta calculation * max_cwnd = snd_cwnd * beta @@ -134,7 +134,7 @@ static u32 cubic_root(u64 a) * x = ( 2 * x + a / x ) / 3 * k+1 k k */ - x = (2 * x + (u32)div64_64(a, (u64)x * (u64)(x - 1))); + x = (2 * x + (u32)div64_u64(a, (u64)x * (u64)(x - 1))); x = ((x * 341) >> 10); return x; } diff -puN net/netfilter/xt_connbytes.c~rename-div64_64-to-div64_u64 net/netfilter/xt_connbytes.c --- a/net/netfilter/xt_connbytes.c~rename-div64_64-to-div64_u64 +++ a/net/netfilter/xt_connbytes.c @@ -4,12 +4,11 @@ #include <linux/module.h> #include <linux/bitops.h> #include <linux/skbuff.h> +#include <linux/math64.h> #include <linux/netfilter/x_tables.h> #include <linux/netfilter/xt_connbytes.h> #include <net/netfilter/nf_conntrack.h> -#include <asm/div64.h> - MODULE_LICENSE("GPL"); MODULE_AUTHOR("Harald Welte <laforge@xxxxxxxxxxxxx>"); MODULE_DESCRIPTION("Xtables: Number of packets/bytes per connection matching"); @@ -82,7 +81,7 @@ connbytes_mt(const struct sk_buff *skb, break; } if (pkts != 0) - what = div64_64(bytes, pkts); + what = div64_u64(bytes, pkts); break; } _ Patches currently in -mm which might be from zippel@xxxxxxxxxxxxxx are origin.patch git-x86.patch git-watchdog.patch m68k-replace-remaining-__function__-occurences.patch fs-hfsplus-proper-externs.patch affs-handle-match_strdup-failure.patch hfs-handle-match_strdup-failure.patch hfsplus-handle-match_strdup-failure.patch fs-affs-filec-use-bug_on.patch affs-be_add_cpu-conversion.patch hfs-hfsplus-be_add_cpu-conversion.patch hfs-fix-warning-with-64k-page_size.patch hfsplus-fix-warning-with-64k-page_size.patch introduce-explicit-signed-unsigned-64bit-divide.patch convert-a-few-do_div-user.patch rename-div64_64-to-div64_u64.patch rename-div64_64-to-div64_u64-mm.patch remove-div_long_long_rem.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html