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c4bd13b650
This fixes issues where the underlying filesystem may be disconnected and
attempting to unmount may cause a hang.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit acbfe6bc56)
Signed-off-by: Victor Vieux <victorvieux@gmail.com>
87 lines
2.8 KiB
Go
87 lines
2.8 KiB
Go
package mount
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import (
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"syscall"
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)
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const (
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// RDONLY will mount the file system read-only.
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RDONLY = syscall.MS_RDONLY
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// NOSUID will not allow set-user-identifier or set-group-identifier bits to
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// take effect.
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NOSUID = syscall.MS_NOSUID
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// NODEV will not interpret character or block special devices on the file
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// system.
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NODEV = syscall.MS_NODEV
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// NOEXEC will not allow execution of any binaries on the mounted file system.
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NOEXEC = syscall.MS_NOEXEC
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// SYNCHRONOUS will allow I/O to the file system to be done synchronously.
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SYNCHRONOUS = syscall.MS_SYNCHRONOUS
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// DIRSYNC will force all directory updates within the file system to be done
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// synchronously. This affects the following system calls: create, link,
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// unlink, symlink, mkdir, rmdir, mknod and rename.
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DIRSYNC = syscall.MS_DIRSYNC
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// REMOUNT will attempt to remount an already-mounted file system. This is
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// commonly used to change the mount flags for a file system, especially to
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// make a readonly file system writeable. It does not change device or mount
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// point.
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REMOUNT = syscall.MS_REMOUNT
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// MANDLOCK will force mandatory locks on a filesystem.
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MANDLOCK = syscall.MS_MANDLOCK
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// NOATIME will not update the file access time when reading from a file.
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NOATIME = syscall.MS_NOATIME
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// NODIRATIME will not update the directory access time.
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NODIRATIME = syscall.MS_NODIRATIME
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// BIND remounts a subtree somewhere else.
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BIND = syscall.MS_BIND
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// RBIND remounts a subtree and all possible submounts somewhere else.
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RBIND = syscall.MS_BIND | syscall.MS_REC
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// UNBINDABLE creates a mount which cannot be cloned through a bind operation.
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UNBINDABLE = syscall.MS_UNBINDABLE
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// RUNBINDABLE marks the entire mount tree as UNBINDABLE.
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RUNBINDABLE = syscall.MS_UNBINDABLE | syscall.MS_REC
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// PRIVATE creates a mount which carries no propagation abilities.
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PRIVATE = syscall.MS_PRIVATE
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// RPRIVATE marks the entire mount tree as PRIVATE.
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RPRIVATE = syscall.MS_PRIVATE | syscall.MS_REC
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// SLAVE creates a mount which receives propagation from its master, but not
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// vice versa.
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SLAVE = syscall.MS_SLAVE
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// RSLAVE marks the entire mount tree as SLAVE.
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RSLAVE = syscall.MS_SLAVE | syscall.MS_REC
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// SHARED creates a mount which provides the ability to create mirrors of
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// that mount such that mounts and unmounts within any of the mirrors
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// propagate to the other mirrors.
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SHARED = syscall.MS_SHARED
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// RSHARED marks the entire mount tree as SHARED.
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RSHARED = syscall.MS_SHARED | syscall.MS_REC
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// RELATIME updates inode access times relative to modify or change time.
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RELATIME = syscall.MS_RELATIME
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// STRICTATIME allows to explicitly request full atime updates. This makes
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// it possible for the kernel to default to relatime or noatime but still
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// allow userspace to override it.
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STRICTATIME = syscall.MS_STRICTATIME
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mntDetach = syscall.MNT_DETACH
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)
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