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vfs: stop using the V_MNTREF flag

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Reviewed by:	kib, mckusick
Differential Revision:	https://reviews.freebsd.org/D36521
This commit is contained in:
Mateusz Guzik 2022-09-10 22:12:08 +02:00
parent db5f85a4b2
commit 61a1d5dde2
1 changed files with 3 additions and 1 deletions
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4
sys/kern/vfs_mount.c
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@ -1703,6 +1703,7 @@ dounmount_cleanup(struct mount *mp, struct vnode *coveredvp, int mntkflags)
vdrop(coveredvp);
}
vn_finished_write(mp);
vfs_rel(mp);
}
/*
@ -2127,7 +2128,7 @@ dounmount(struct mount *mp, uint64_t flags, struct thread *td)
vfs_op_enter(mp);
vn_start_write(NULL, &mp, V_WAIT | V_MNTREF);
vn_start_write(NULL, &mp, V_WAIT);
MNT_ILOCK(mp);
if ((mp->mnt_kern_flag & MNTK_UNMOUNT) != 0 ||
(mp->mnt_flag & MNT_UPDATE) != 0 ||
@ -2200,6 +2201,7 @@ dounmount(struct mount *mp, uint64_t flags, struct thread *td)
vfs_deallocate_syncvnode(mp);
error = VFS_UNMOUNT(mp, flags);
vn_finished_write(mp);
vfs_rel(mp);
/*
* If we failed to flush the dirty blocks for this mount point,
* undo all the cdir/rdir and rootvnode changes we made above.