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author | adrian <adrian@FreeBSD.org> | 2001-03-01 21:00:17 +0000 |
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committer | adrian <adrian@FreeBSD.org> | 2001-03-01 21:00:17 +0000 |
commit | 401895533496c6f7943c0cadf487c2cfa8f852ac (patch) | |
tree | 19b63a29b1f18d2efdee5765c5bffd371838dd1e /sys/kern/vfs_mount.c | |
parent | 845eeac4fc47466824d871b49fc54af4c3812e09 (diff) | |
download | FreeBSD-src-401895533496c6f7943c0cadf487c2cfa8f852ac.zip FreeBSD-src-401895533496c6f7943c0cadf487c2cfa8f852ac.tar.gz |
Reviewed by: jlemon
An initial tidyup of the mount() syscall and VFS mount code.
This code replaces the earlier work done by jlemon in an attempt to
make linux_mount() work.
* the guts of the mount work has been moved into vfs_mount().
* move `type', `path' and `flags' from being userland variables into being
kernel variables in vfs_mount(). `data' remains a pointer into
userspace.
* Attempt to verify the `type' and `path' strings passed to vfs_mount()
aren't too long.
* rework mount() and linux_mount() to take the userland parameters
(besides data, as mentioned) and pass kernel variables to vfs_mount().
(linux_mount() already did this, I've just tidied it up a little more.)
* remove the copyin*() stuff for `path'. `data' still requires copyin*()
since its a pointer into userland.
* set `mount->mnt_statf_mntonname' in vfs_mount() rather than in each
filesystem. This variable is generally initialised with `path', and
each filesystem can override it if they want to.
* NOTE: f_mntonname is intiailised with "/" in the case of a root mount.
Diffstat (limited to 'sys/kern/vfs_mount.c')
-rw-r--r-- | sys/kern/vfs_mount.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sys/kern/vfs_mount.c b/sys/kern/vfs_mount.c index c1447ff..34fba78 100644 --- a/sys/kern/vfs_mount.c +++ b/sys/kern/vfs_mount.c @@ -214,6 +214,14 @@ vfs_mountroot_try(char *mountfrom) (devsw(rootdev)->d_flags & D_MEMDISK)) mp->mnt_flag &= ~MNT_RDONLY; + /* + * Set the mount path to be something useful, because the + * filesystem code isn't responsible now for initialising + * f_mntonname unless they want to override the default + * (which is `path'.) + */ + strncpy(mp->mnt_stat.f_mntonname, "/", MNAMELEN); + error = VFS_MOUNT(mp, NULL, NULL, NULL, curproc); done: |