• Caio Marcelo de Oliveira Filho's avatar
    x/sys/unix: add support for O_TMPFILE in Linux · 23999e87
    Caio Marcelo de Oliveira Filho authored
    Since Linux 3.11, O_TMPFILE flag can be used in open syscall to create
    an unnamed file in a directory. The file occupies space in the
    filesystem, and can be given a name using linkat syscall. If the file is
    closed without being given a name, its contents are deleted.
    
    See the manpage open(2) in Linux for details.
    
    Exports O_TMPFILE for Linux in 386 and amd64 (other architectures
    already had it). Exports Linkat syscall and AT_SYMLINK_FOLLOW (used for
    giving a name to the file) for all Linux in all architectures.
    
    Fixes golang/go#7830.
    
    Change-Id: Ib82e44f405b227e227b9cbf317c2657b32e046f5
    Reviewed-on: https://go-review.googlesource.com/21003Reviewed-by: 's avatarBrad Fitzpatrick <bradfitz@golang.org>
    23999e87
zerrors_linux_386.go 70.6 KB