diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/bits')
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/mman-linux.h | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/sched.h | 60 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/uio-ext.h | 2 |
3 files changed, 61 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/mman-linux.h b/sysdeps/unix/sysv/linux/bits/mman-linux.h index 522333c50a..161a885096 100644 --- a/sysdeps/unix/sysv/linux/bits/mman-linux.h +++ b/sysdeps/unix/sysv/linux/bits/mman-linux.h @@ -43,6 +43,7 @@ #define MAP_PRIVATE 0x02 /* Changes are private. */ #define MAP_SHARED_VALIDATE 0x03 /* Share changes and validate extension flags. */ +#define MAP_DROPPABLE 0x08 /* Zero memory under memory pressure. */ #define MAP_TYPE 0x0f /* Mask for type of mapping. */ /* Other flags. */ diff --git a/sysdeps/unix/sysv/linux/bits/sched.h b/sysdeps/unix/sysv/linux/bits/sched.h index a53e1362a0..f03f5f5ab3 100644 --- a/sysdeps/unix/sysv/linux/bits/sched.h +++ b/sysdeps/unix/sysv/linux/bits/sched.h @@ -29,15 +29,60 @@ #define SCHED_FIFO 1 #define SCHED_RR 2 #ifdef __USE_GNU +# define SCHED_NORMAL 0 # define SCHED_BATCH 3 # define SCHED_ISO 4 # define SCHED_IDLE 5 # define SCHED_DEADLINE 6 +/* Flags that can be used in policy values. */ # define SCHED_RESET_ON_FORK 0x40000000 -#endif -#ifdef __USE_GNU +/* Flags for the sched_flags field in struct sched_attr. */ +#define SCHED_FLAG_RESET_ON_FORK 0x01 +#define SCHED_FLAG_RECLAIM 0x02 +#define SCHED_FLAG_DL_OVERRUN 0x04 +#define SCHED_FLAG_KEEP_POLICY 0x08 +#define SCHED_FLAG_KEEP_PARAMS 0x10 +#define SCHED_FLAG_UTIL_CLAMP_MIN 0x20 +#define SCHED_FLAG_UTIL_CLAMP_MAX 0x40 + +/* Combinations of sched_flags fields. */ +#define SCHED_FLAG_KEEP_ALL \ + (SCHED_FLAG_KEEP_POLICY | SCHED_FLAG_KEEP_PARAMS) +#define SCHED_FLAG_UTIL_CLAMP \ + (SCHED_FLAG_UTIL_CLAMP_MIN | SCHED_FLAG_UTIL_CLAMP_MAX) + +/* Use "" to work around incorrect macro expansion of the + __has_include argument (GCC PR 80005). */ +# ifdef __has_include +# if __has_include ("linux/sched/types.h") +/* Some older Linux versions defined sched_param in <linux/sched/types.h>. */ +# define sched_param __glibc_mask_sched_param +# include <linux/sched/types.h> +# undef sched_param +# endif +# endif +# ifndef SCHED_ATTR_SIZE_VER0 +# include <linux/types.h> +# define SCHED_ATTR_SIZE_VER0 48 +# define SCHED_ATTR_SIZE_VER1 56 +struct sched_attr +{ + __u32 size; + __u32 sched_policy; + __u64 sched_flags; + __s32 sched_nice; + __u32 sched_priority; + __u64 sched_runtime; + __u64 sched_deadline; + __u64 sched_period; + __u32 sched_util_min; + __u32 sched_util_max; + /* Additional fields may be added at the end. */ +}; +# endif /* !SCHED_ATTR_SIZE_VER0 */ + /* Cloning flags. */ # define CSIGNAL 0x000000ff /* Signal mask to be sent at exit. */ # define CLONE_VM 0x00000100 /* Set if VM shared between processes. */ @@ -97,6 +142,17 @@ extern int getcpu (unsigned int *, unsigned int *) __THROW; /* Switch process to namespace of type NSTYPE indicated by FD. */ extern int setns (int __fd, int __nstype) __THROW; + +/* Apply the scheduling attributes from *ATTR to the process or thread TID. */ +int sched_setattr (pid_t tid, struct sched_attr *attr, unsigned int flags) + __THROW __nonnull ((2)); + +/* Obtain the scheduling attributes of the process or thread TID and + store it in *ATTR. */ +int sched_getattr (pid_t tid, struct sched_attr *attr, unsigned int size, + unsigned int flags) + __THROW __nonnull ((2)) __attr_access ((__write_only__, 2, 3)); + #endif __END_DECLS diff --git a/sysdeps/unix/sysv/linux/bits/uio-ext.h b/sysdeps/unix/sysv/linux/bits/uio-ext.h index ead7a09156..85ed21bac5 100644 --- a/sysdeps/unix/sysv/linux/bits/uio-ext.h +++ b/sysdeps/unix/sysv/linux/bits/uio-ext.h @@ -48,6 +48,8 @@ extern ssize_t process_vm_writev (pid_t __pid, const struct iovec *__lvec, #define RWF_NOWAIT 0x00000008 /* per-IO nonblocking mode. */ #define RWF_APPEND 0x00000010 /* per-IO O_APPEND. */ #define RWF_NOAPPEND 0x00000020 /* per-IO negation of O_APPEND */ +#define RWF_ATOMIC 0x00000040 /* Write is to be issued with torn-write + prevention. */ __END_DECLS |