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Differential D28856 Diff 84451 sys/fs/nullfs/null_vfsops.c

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sys/fs/nullfs/null_vfsops.c

Show First 20 Lines • Show All 191 Lines • ▼ Show 20 Linesnullfs_mount(struct mount *mp)
MNT_ILOCK(mp); MNT_ILOCK(mp);
if ((xmp->nullm_flags & NULLM_CACHE) != 0) { if ((xmp->nullm_flags & NULLM_CACHE) != 0) {
mp->mnt_kern_flag |= lowerrootvp->v_mount->mnt_kern_flag & mp->mnt_kern_flag |= lowerrootvp->v_mount->mnt_kern_flag &
(MNTK_SHARED_WRITES | MNTK_LOOKUP_SHARED | (MNTK_SHARED_WRITES | MNTK_LOOKUP_SHARED |
MNTK_EXTENDED_SHARED); MNTK_EXTENDED_SHARED);
} }
mp->mnt_kern_flag |= MNTK_LOOKUP_EXCL_DOTDOT | MNTK_NOMSYNC; mp->mnt_kern_flag |= MNTK_LOOKUP_EXCL_DOTDOT | MNTK_NOMSYNC;
mp->mnt_kern_flag |= lowerrootvp->v_mount->mnt_kern_flag & mp->mnt_kern_flag |= lowerrootvp->v_mount->mnt_kern_flag &
(MNTK_USES_BCACHE | MNTK_NO_IOPF | MNTK_UNMAPPED_BUFS); (MNTK_NO_IOPF | MNTK_UNMAPPED_BUFS);
MNT_IUNLOCK(mp); MNT_IUNLOCK(mp);
vfs_getnewfsid(mp); vfs_getnewfsid(mp);
if ((xmp->nullm_flags & NULLM_CACHE) != 0) { if ((xmp->nullm_flags & NULLM_CACHE) != 0) {
MNT_ILOCK(xmp->nullm_vfs); MNT_ILOCK(xmp->nullm_vfs);
TAILQ_INSERT_TAIL(&xmp->nullm_vfs->mnt_uppers, mp, TAILQ_INSERT_TAIL(&xmp->nullm_vfs->mnt_uppers, mp,
mnt_upper_link); mnt_upper_link);
MNT_IUNLOCK(xmp->nullm_vfs); MNT_IUNLOCK(xmp->nullm_vfs);
} }
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