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author | 2020-03-03 12:18:22 +0100 | |
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committer | 2020-03-03 12:18:22 +0100 | |
commit | b5350b487cee9bee32990712bc67a5eaffe3ea98 (patch) | |
tree | b719b5330741d3f8312fe1cdfdb13fc2f372a2b4 | |
parent | Linux: exit_group syscall number is always available (diff) | |
download | glibc-b5350b487cee9bee32990712bc67a5eaffe3ea98.tar.gz glibc-b5350b487cee9bee32990712bc67a5eaffe3ea98.tar.bz2 glibc-b5350b487cee9bee32990712bc67a5eaffe3ea98.zip |
Linux: Clean up preadv2, pwritev2 system call names
With the built-in tables __NR_preadv2 and __NR_pwritev2 are always
defined.
The kernel has never defined __NR_preadv64v2 and __NR_pwritev64v2
and is unlikely to do so, given that the preadv2 and pwritev2 system
calls themselves are 64-bit.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
-rw-r--r-- | sysdeps/unix/sysv/linux/preadv2.c | 7 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/preadv64v2.c | 9 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/pwritev2.c | 4 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/pwritev64v2.c | 9 |
4 files changed, 7 insertions, 22 deletions
diff --git a/sysdeps/unix/sysv/linux/preadv2.c b/sysdeps/unix/sysv/linux/preadv2.c index 5f1a83589e..4e3aa923da 100644 --- a/sysdeps/unix/sysv/linux/preadv2.c +++ b/sysdeps/unix/sysv/linux/preadv2.c @@ -21,20 +21,15 @@ #ifndef __OFF_T_MATCHES_OFF64_T -# if !defined (__NR_preadv2) && defined (__NR_pread64v2) -# define __NR_preadv2 __NR_pread64v2 -# endif - ssize_t preadv2 (int fd, const struct iovec *vector, int count, off_t offset, int flags) { -# ifdef __NR_preadv2 ssize_t result = SYSCALL_CANCEL (preadv2, fd, vector, count, LO_HI_LONG (offset), flags); if (result >= 0 || errno != ENOSYS) return result; -# endif + /* Trying to emulate the preadv2 syscall flags is troublesome: * We can not temporary change the file state of the O_DSYNC and O_SYNC diff --git a/sysdeps/unix/sysv/linux/preadv64v2.c b/sysdeps/unix/sysv/linux/preadv64v2.c index f1e52711cb..1bf1a4c696 100644 --- a/sysdeps/unix/sysv/linux/preadv64v2.c +++ b/sysdeps/unix/sysv/linux/preadv64v2.c @@ -19,20 +19,15 @@ #include <sys/uio.h> #include <sysdep-cancel.h> -#if !defined(__NR_preadv64v2) && defined(__NR_preadv2) -# define __NR_preadv64v2 __NR_preadv2 -#endif - ssize_t preadv64v2 (int fd, const struct iovec *vector, int count, off64_t offset, int flags) { -#ifdef __NR_preadv64v2 - ssize_t result = SYSCALL_CANCEL (preadv64v2, fd, vector, count, + ssize_t result = SYSCALL_CANCEL (preadv2, fd, vector, count, LO_HI_LONG (offset), flags); if (result >= 0 || errno != ENOSYS) return result; -#endif + /* Trying to emulate the preadv2 syscall flags is troublesome: * We can not temporary change the file state of the O_DSYNC and O_SYNC diff --git a/sysdeps/unix/sysv/linux/pwritev2.c b/sysdeps/unix/sysv/linux/pwritev2.c index 53ab5e7613..a179654970 100644 --- a/sysdeps/unix/sysv/linux/pwritev2.c +++ b/sysdeps/unix/sysv/linux/pwritev2.c @@ -25,12 +25,12 @@ ssize_t pwritev2 (int fd, const struct iovec *vector, int count, off_t offset, int flags) { -# ifdef __NR_pwritev2 + ssize_t result = SYSCALL_CANCEL (pwritev2, fd, vector, count, LO_HI_LONG (offset), flags); if (result >= 0 || errno != ENOSYS) return result; -# endif + /* Trying to emulate the pwritev2 syscall flags is troublesome: * We can not temporary change the file state of the O_DSYNC and O_SYNC diff --git a/sysdeps/unix/sysv/linux/pwritev64v2.c b/sysdeps/unix/sysv/linux/pwritev64v2.c index ba95eefcd9..8df32528b7 100644 --- a/sysdeps/unix/sysv/linux/pwritev64v2.c +++ b/sysdeps/unix/sysv/linux/pwritev64v2.c @@ -19,20 +19,15 @@ #include <sys/uio.h> #include <sysdep-cancel.h> -#if !defined(__NR_pwritev64v2) && defined(__NR_pwritev2) -# define __NR_pwritev64v2 __NR_pwritev2 -#endif - ssize_t pwritev64v2 (int fd, const struct iovec *vector, int count, off64_t offset, int flags) { -#ifdef __NR_pwritev64v2 - ssize_t result = SYSCALL_CANCEL (pwritev64v2, fd, vector, count, + ssize_t result = SYSCALL_CANCEL (pwritev2, fd, vector, count, LO_HI_LONG (offset), flags); if (result >= 0 || errno != ENOSYS) return result; -#endif + /* Trying to emulate the pwritev2 syscall flags is troublesome: * We can not temporary change the file state of the O_DSYNC and O_SYNC |