diff options
Diffstat (limited to 'sbin/mount_nullfs/mount_nullfs.8')
| -rw-r--r-- | sbin/mount_nullfs/mount_nullfs.8 | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/sbin/mount_nullfs/mount_nullfs.8 b/sbin/mount_nullfs/mount_nullfs.8 index 17b1f45f5e42..b3cf57fd9dea 100644 --- a/sbin/mount_nullfs/mount_nullfs.8 +++ b/sbin/mount_nullfs/mount_nullfs.8 @@ -90,7 +90,7 @@ See the .Xr mount 8 man page for possible options and their meanings. Additionally the following option is supported: -.Bl -tag -width nocache +.Bl -tag -width nounixbypass .It Cm nocache Disable metadata caching in the null layer. Some lower-layer file systems may force this option. @@ -98,6 +98,32 @@ Depending on the access pattern, this may result in increased lock contention. .It Cm cache Force enable metadata caching. +.It Cm nounixbypass +Disable bypassing +.Xr unix 4 +socket files used for +.Xr bind 2 +and +.Xr connect 2 , +to the lower (mounted-from) filesystem layer. +.Pp +The effect is that lower and upper (bypassed) unix sockets +are separate. +.It Cm unixbypass +Enable the bypass of unix socket file to lower filesystem layer. +This is default. +.Pp +The effect is that +.Xr bind 2 +and +.Xr connect 2 +operations on a unix socket done from either the upper (nullfs) or lower +layer path are performed on same unix socket. +For instance, if a server +.Xr bind 2 +is done on a socket in the lower layer, then +.Xr connect 2 +on the socket file accessed via the nullfs mount, connects to the server. .El .El .Pp |