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syscall: drop fallback to utimes in UtimesNano on Linux

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The minimum required Linux kernel version for Go 1.18 will be changed to
2.6.32, see #45964. The current minimum required version is 2.6.23 and
utimensat was added in 2.6.22, so the fallback isn't even necessary for
the current minimum supported version. Remove the fallback to utimes.

For #45964

Change-Id: I5536f6ea7a34944dd9165f1533c10692171fb0c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/346790
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Tobias Klauser 2021-09-01 15:24:01 +02:00 committed by Tobias Klauser
parent d13d62c49a
commit 17e9d148d3
1 changed files with 1 additions and 12 deletions
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13
src/syscall/syscall_linux.go
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@ -204,18 +204,7 @@ func UtimesNano(path string, ts []Timespec) (err error) {
if len(ts) != 2 { if len(ts) != 2 {
return EINVAL return EINVAL
} }
err = utimensat(_AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) return utimensat(_AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
if err != ENOSYS {
return err
}
// If the utimensat syscall isn't available (utimensat was added to Linux
// in 2.6.22, Released, 8 July 2007) then fall back to utimes
var tv [2]Timeval
for i := 0; i < 2; i++ {
tv[i].Sec = ts[i].Sec
tv[i].Usec = ts[i].Nsec / 1000
}
return utimes(path, (*[2]Timeval)(unsafe.Pointer(&tv[0])))
} }
func Futimesat(dirfd int, path string, tv []Timeval) (err error) { func Futimesat(dirfd int, path string, tv []Timeval) (err error) {