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| author | Karel Zak <kzak@redhat.com> | 2007-07-16 11:56:23 +0200 |
|---|---|---|
| committer | Karel Zak <kzak@redhat.com> | 2007-07-16 12:22:54 +0200 |
| commit | 4dfadf9c3abcdd9171a7bd81aedd4ec67d38d7b8 (patch) | |
| tree | 472111844b9bba3890d9d14ca375d7f5daa3a7c0 /schedutils | |
| parent | 62f0ec7b4a98939bf736c4733b5ddbd155876d50 (diff) | |
| download | util-linux-old-4dfadf9c3abcdd9171a7bd81aedd4ec67d38d7b8.tar.gz | |
ionice: prefer SYS_ioprio_{set,get} from glibc to hardcoded version
It's better to use glibc SYS_ioprio_{set,get} definitions rather than an
incomplete (not all archs) and hardcoded version from ionice.c.
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'schedutils')
| -rw-r--r-- | schedutils/ionice.c | 59 |
1 files changed, 33 insertions, 26 deletions
diff --git a/schedutils/ionice.c b/schedutils/ionice.c index fe3b4a9a..ac721215 100644 --- a/schedutils/ionice.c +++ b/schedutils/ionice.c @@ -15,39 +15,46 @@ #include <sys/syscall.h> #include <asm/unistd.h> -#if defined(__i386__) -#define __NR_ioprio_set 289 -#define __NR_ioprio_get 290 -#elif defined(__powerpc__) || defined(__powerpc64__) -#define __NR_ioprio_set 273 -#define __NR_ioprio_get 274 -#elif defined(__x86_64__) -#define __NR_ioprio_set 251 -#define __NR_ioprio_get 252 -#elif defined(__ia64__) -#define __NR_ioprio_set 1274 -#define __NR_ioprio_get 1275 -#elif defined(__alpha__) -#define __NR_ioprio_set 442 -#define __NR_ioprio_get 443 -#elif defined(__s390x__) || defined(__s390__) -#define __NR_ioprio_set 282 -#define __NR_ioprio_get 283 -#elif defined(__sparc__) -#define __NR_ioprio_set 196 -#define __NR_ioprio_get 218 -#else -#error "Unsupported arch" -#endif +#if !defined(SYS_ioprio_get) || !defined(SYS_ioprio_set) + +# if defined(__i386__) +# define __NR_ioprio_set 289 +# define __NR_ioprio_get 290 +# elif defined(__powerpc__) || defined(__powerpc64__) +# define __NR_ioprio_set 273 +# define __NR_ioprio_get 274 +# elif defined(__x86_64__) +# define __NR_ioprio_set 251 +# define __NR_ioprio_get 252 +# elif defined(__ia64__) +# define __NR_ioprio_set 1274 +# define __NR_ioprio_get 1275 +# elif defined(__alpha__) +# define __NR_ioprio_set 442 +# define __NR_ioprio_get 443 +# elif defined(__s390x__) || defined(__s390__) +# define __NR_ioprio_set 282 +# define __NR_ioprio_get 283 +# elif defined(__sparc__) || defined(__sparc64__) +# define __NR_ioprio_set 196 +# define __NR_ioprio_get 218 +# else +# error "Unsupported arch" +# endif + +# define SYS_ioprio_get __NR_ioprio_get +# define SYS_ioprio_set __NR_ioprio_set + +#endif /* !SYS_ioprio_get */ static inline int ioprio_set(int which, int who, int ioprio) { - return syscall(__NR_ioprio_set, which, who, ioprio); + return syscall(SYS_ioprio_set, which, who, ioprio); } static inline int ioprio_get(int which, int who) { - return syscall(__NR_ioprio_get, which, who); + return syscall(SYS_ioprio_get, which, who); } enum { |