diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/prlimit.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/prlimit.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/sysdeps/unix/sysv/linux/prlimit.c b/sysdeps/unix/sysv/linux/prlimit.c index b0390d24be..2fa0642c76 100644 --- a/sysdeps/unix/sysv/linux/prlimit.c +++ b/sysdeps/unix/sysv/linux/prlimit.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2010-2016 Free Software Foundation, Inc. +/* Copyright (C) 2010-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -20,7 +20,6 @@ #include <sys/syscall.h> -#ifdef __NR_prlimit64 int prlimit (__pid_t pid, enum __rlimit_resource resource, const struct rlimit *new_rlimit, struct rlimit *old_rlimit) @@ -51,21 +50,24 @@ prlimit (__pid_t pid, enum __rlimit_resource resource, { /* The prlimit64 syscall is ill-designed for 32-bit machines. We have to provide a 32-bit variant since otherwise the LFS - system would not work. But what shall we do if the syscall - succeeds but the old values do not fit into a rlimit - structure? We cannot return an error because the operation - itself worked. Best is perhaps to return RLIM_INFINITY. */ + system would not work. The infinity value can be translated, + but otherwise what shall we do if the syscall succeeds but the + old values do not fit into a rlimit structure? We cannot return + an error because the operation itself worked. Best is perhaps + to return RLIM_INFINITY. */ old_rlimit->rlim_cur = old_rlimit64_mem.rlim_cur; if (old_rlimit->rlim_cur != old_rlimit64_mem.rlim_cur) { - if (new_rlimit == NULL) + if ((new_rlimit == NULL) + && (old_rlimit64_mem.rlim_cur != RLIM64_INFINITY)) return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW); old_rlimit->rlim_cur = RLIM_INFINITY; } old_rlimit->rlim_max = old_rlimit64_mem.rlim_max; if (old_rlimit->rlim_max != old_rlimit64_mem.rlim_max) { - if (new_rlimit == NULL) + if ((new_rlimit == NULL) + && (old_rlimit64_mem.rlim_max != RLIM64_INFINITY)) return INLINE_SYSCALL_ERROR_RETURN_VALUE (EOVERFLOW); old_rlimit->rlim_max = RLIM_INFINITY; } @@ -73,12 +75,3 @@ prlimit (__pid_t pid, enum __rlimit_resource resource, return res; } -#else -int -prlimit (__pid_t pid, enum __rlimit_resource resource, - const struct rlimit *new_rlimit, struct rlimit *old_rlimit) -{ - return INLINE_SYSCALL_ERROR_RETURN_VALUE (ENOSYS); -} -stub_warning (prlimit) -#endif |