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Properly translate MNT_FORCE flag to Linux umount2(2). Previously

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it worked by accident.

MFC after:	2 weeks
Sponsored by:	DARPA
This commit is contained in:
Edward Tomasz Napierala 2020-01-20 12:16:32 +00:00
parent 6507380fb9
commit 66632fe7bb
2 changed files with 11 additions and 1 deletions
sys/compat/linux
linux_file.clinux_file.h

7
sys/compat/linux/linux_file.c

@ -1078,9 +1078,14 @@ int
linux_umount(struct thread *td, struct linux_umount_args *args)
{
struct unmount_args bsd;
int flags;
flags = 0;
if ((args->flags & LINUX_MNT_FORCE) != 0)
flags |= MNT_FORCE;
bsd.path = args->path;
bsd.flags = args->flags; /* XXX correct? */
bsd.flags = flags;
return (sys_unmount(td, &bsd));
}
#endif

5
sys/compat/linux/linux_file.h

@ -56,6 +56,11 @@
#define LINUX_MS_NOEXEC 0x0008
#define LINUX_MS_REMOUNT 0x0020
/*
* umount2 flags
*/
#define LINUX_MNT_FORCE 0x0001
/*
* common open/fcntl flags
*/