unix: fix fsync for read-only files on aix

On aix, the fsync syscall doesn't work on read-only files. Use
fsync_range instead to allow Fsync to work on any file.

Follow CL 254657 which did the same in package syscall.

For golang/go#41372

Change-Id: Ibc55ecf5c43e27a04281af1a204f847eeafeea63
Reviewed-on: https://go-review.googlesource.com/c/sys/+/362274
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser
2021-11-09 06:54:45 +00:00
committed by Tobias Klauser
parent cbcd623f20
commit 02f5c0300f
5 changed files with 45 additions and 41 deletions
+10 -10
View File
@@ -18,6 +18,7 @@ import (
//go:cgo_import_dynamic libc_wait4 wait4 "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_ioctl ioctl "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_fcntl fcntl "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_fsync_range fsync_range "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_acct acct "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_chdir chdir "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_chroot chroot "libc.a/shr_64.o"
@@ -30,7 +31,6 @@ import (
//go:cgo_import_dynamic libc_fchmodat fchmodat "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_fchownat fchownat "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_fdatasync fdatasync "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_fsync fsync "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_getpgid getpgid "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_getpgrp getpgrp "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_getpid getpid "libc.a/shr_64.o"
@@ -136,6 +136,7 @@ import (
//go:linkname libc_wait4 libc_wait4
//go:linkname libc_ioctl libc_ioctl
//go:linkname libc_fcntl libc_fcntl
//go:linkname libc_fsync_range libc_fsync_range
//go:linkname libc_acct libc_acct
//go:linkname libc_chdir libc_chdir
//go:linkname libc_chroot libc_chroot
@@ -148,7 +149,6 @@ import (
//go:linkname libc_fchmodat libc_fchmodat
//go:linkname libc_fchownat libc_fchownat
//go:linkname libc_fdatasync libc_fdatasync
//go:linkname libc_fsync libc_fsync
//go:linkname libc_getpgid libc_getpgid
//go:linkname libc_getpgrp libc_getpgrp
//go:linkname libc_getpid libc_getpid
@@ -257,6 +257,7 @@ var (
libc_wait4,
libc_ioctl,
libc_fcntl,
libc_fsync_range,
libc_acct,
libc_chdir,
libc_chroot,
@@ -269,7 +270,6 @@ var (
libc_fchmodat,
libc_fchownat,
libc_fdatasync,
libc_fsync,
libc_getpgid,
libc_getpgrp,
libc_getpid,
@@ -430,6 +430,13 @@ func callfcntl(fd uintptr, cmd int, arg uintptr) (r1 uintptr, e1 Errno) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func callfsync_range(fd int, how int, start int64, length int64) (r1 uintptr, e1 Errno) {
r1, _, e1 = syscall6(uintptr(unsafe.Pointer(&libc_fsync_range)), 4, uintptr(fd), uintptr(how), uintptr(start), uintptr(length), 0, 0)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func callacct(_p0 uintptr) (r1 uintptr, e1 Errno) {
r1, _, e1 = syscall6(uintptr(unsafe.Pointer(&libc_acct)), 1, _p0, 0, 0, 0, 0, 0)
return
@@ -514,13 +521,6 @@ func callfdatasync(fd int) (r1 uintptr, e1 Errno) {
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func callfsync(fd int) (r1 uintptr, e1 Errno) {
r1, _, e1 = syscall6(uintptr(unsafe.Pointer(&libc_fsync)), 1, uintptr(fd), 0, 0, 0, 0, 0)
return
}
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func callgetpgid(pid int) (r1 uintptr, e1 Errno) {
r1, _, e1 = rawSyscall6(uintptr(unsafe.Pointer(&libc_getpgid)), 1, uintptr(pid), 0, 0, 0, 0, 0)
return