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| author | Joseph Myers <joseph@codesourcery.com> | 2017-05-09 14:05:09 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2017-05-09 14:05:09 +0000 |
| commit | 695d7d138eda449678a1650a8b8b58181033353f (patch) | |
| tree | 21808b08259cb3d73c1d3701adfbb98b0a4333a2 /sysdeps/unix/sysv/linux/setrlimit64.c | |
| parent | a972dc672c06845a024a0f98119dc3d9df0b9b77 (diff) | |
| download | glibc-695d7d138eda449678a1650a8b8b58181033353f.tar glibc-695d7d138eda449678a1650a8b8b58181033353f.tar.gz glibc-695d7d138eda449678a1650a8b8b58181033353f.tar.bz2 glibc-695d7d138eda449678a1650a8b8b58181033353f.zip | |
Assume prlimit64 is available.
This patch makes sysdeps/unix/sysv/linux code assume the prlimit64
syscall is always available, given the minimum of a 3.2 kernel.
__ASSUME_PRLIMIT64, which in fact was no longer used, is removed.
Code conditional on __NR_prlimit64 being defined is made
unconditional. Fallback code for the case where prlimit64 produces an
ENOSYS error is removed, substantially simplifying some functions.
Tested for x86_64 and x86.
* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_PRLIMIT64):
Remove macro.
* sysdeps/unix/sysv/linux/getrlimit64.c (__getrlimit64): Assume
prlimit64 is always available and does not give an ENOSYS error.
* sysdeps/unix/sysv/linux/prlimit.c [__NR_prlimit64]: Make code
unconditional.
[!__NR_prlimit64]: Remove conditional code.
* sysdeps/unix/sysv/linux/setrlimit.c (__setrlimit): Assume
prlimit64 is always available and does not give an ENOSYS error.
* sysdeps/unix/sysv/linux/setrlimit64.c (__setrlimit64): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/setrlimit64.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/setrlimit64.c | 31 |
1 files changed, 1 insertions, 30 deletions
diff --git a/sysdeps/unix/sysv/linux/setrlimit64.c b/sysdeps/unix/sysv/linux/setrlimit64.c index 2dd129d99e..db1960fc18 100644 --- a/sysdeps/unix/sysv/linux/setrlimit64.c +++ b/sysdeps/unix/sysv/linux/setrlimit64.c @@ -36,36 +36,7 @@ int __setrlimit64 (enum __rlimit_resource resource, const struct rlimit64 *rlimits) { - int res; - -#ifdef __NR_prlimit64 - res = INLINE_SYSCALL_CALL (prlimit64, 0, resource, rlimits, NULL); - if (res == 0 || errno != ENOSYS) - return res; -#endif - -/* The fallback code only makes sense if the platform supports - __NR_setrlimit. */ -#ifdef __NR_setrlimit -# if !__RLIM_T_MATCHES_RLIM64_T - struct rlimit rlimits32; - - if (rlimits->rlim_cur >= RLIM_INFINITY) - rlimits32.rlim_cur = RLIM_INFINITY; - else - rlimits32.rlim_cur = rlimits->rlim_cur; - if (rlimits->rlim_max >= RLIM_INFINITY) - rlimits32.rlim_max = RLIM_INFINITY; - else - rlimits32.rlim_max = rlimits->rlim_max; -# else -# define rlimits32 (*rlimits) -# endif - - res = INLINE_SYSCALL_CALL (setrlimit, resource, &rlimits32); -#endif - - return res; + return INLINE_SYSCALL_CALL (prlimit64, 0, resource, rlimits, NULL); } weak_alias (__setrlimit64, setrlimit64) |