diff options
author | Roman Zippel <zippel@linux-m68k.org> | 2008-05-01 07:34:31 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-01 11:03:58 -0400 |
commit | f8bd2258e2d520dff28c855658bd24bdafb5102d (patch) | |
tree | d76db1dc858cb316bc7d5b8473f690a753fd2c93 /arch/mips/kernel/binfmt_elfo32.c | |
parent | 6f6d6a1a6a1336431a6cba60ace9e97c3a496a19 (diff) |
remove div_long_long_rem
x86 is the only arch right now, which provides an optimized for
div_long_long_rem and it has the downside that one has to be very careful that
the divide doesn't overflow.
The API is a little akward, as the arguments for the unsigned divide are
signed. The signed version also doesn't handle a negative divisor and
produces worse code on 64bit archs.
There is little incentive to keep this API alive, so this converts the few
users to the new API.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/mips/kernel/binfmt_elfo32.c')
-rw-r--r-- | arch/mips/kernel/binfmt_elfo32.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c index 08f4cd781ee3..e1333d7319e2 100644 --- a/arch/mips/kernel/binfmt_elfo32.c +++ b/arch/mips/kernel/binfmt_elfo32.c | |||
@@ -56,6 +56,7 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; | |||
56 | #include <linux/module.h> | 56 | #include <linux/module.h> |
57 | #include <linux/elfcore.h> | 57 | #include <linux/elfcore.h> |
58 | #include <linux/compat.h> | 58 | #include <linux/compat.h> |
59 | #include <linux/math64.h> | ||
59 | 60 | ||
60 | #define elf_prstatus elf_prstatus32 | 61 | #define elf_prstatus elf_prstatus32 |
61 | struct elf_prstatus32 | 62 | struct elf_prstatus32 |
@@ -104,8 +105,8 @@ jiffies_to_compat_timeval(unsigned long jiffies, struct compat_timeval *value) | |||
104 | * one divide. | 105 | * one divide. |
105 | */ | 106 | */ |
106 | u64 nsec = (u64)jiffies * TICK_NSEC; | 107 | u64 nsec = (u64)jiffies * TICK_NSEC; |
107 | long rem; | 108 | u32 rem; |
108 | value->tv_sec = div_long_long_rem(nsec, NSEC_PER_SEC, &rem); | 109 | value->tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem); |
109 | value->tv_usec = rem / NSEC_PER_USEC; | 110 | value->tv_usec = rem / NSEC_PER_USEC; |
110 | } | 111 | } |
111 | 112 | ||