diff options
author | Jamie Liu <jamieliu@google.com> | 2019-07-17 15:48:33 -0700 |
---|---|---|
committer | gVisor bot <gvisor-bot@google.com> | 2019-07-17 15:52:38 -0700 |
commit | 2bc398bfd8fbe38776a512329bd0c40c9c7a5cdf (patch) | |
tree | b978cf47150c445300d20941d617941fb3053b4d /pkg/sentry/fs | |
parent | 84a59de5dc3a0b8a260c942958cd91e014dc8d9b (diff) |
Separate O_DSYNC and O_SYNC.
PiperOrigin-RevId: 258657913
Diffstat (limited to 'pkg/sentry/fs')
-rw-r--r-- | pkg/sentry/fs/flags.go | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/pkg/sentry/fs/flags.go b/pkg/sentry/fs/flags.go index 1278f9c78..0fab876a9 100644 --- a/pkg/sentry/fs/flags.go +++ b/pkg/sentry/fs/flags.go @@ -28,7 +28,11 @@ type FileFlags struct { // NonBlocking indicates that I/O should not block. NonBlocking bool - // Sync indicates that any writes should be synchronous. + // DSync indicates that each write will flush data and metadata required to + // read the file's contents. + DSync bool + + // Sync indicates that each write will flush data and all file metadata. Sync bool // Append indicates this file is append only. @@ -96,6 +100,9 @@ func (f FileFlags) ToLinux() (mask uint) { if f.NonBlocking { mask |= linux.O_NONBLOCK } + if f.DSync { + mask |= linux.O_DSYNC + } if f.Sync { mask |= linux.O_SYNC } |