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MFC: Don't retry when vget() returns ENOENT in the nonblocking case due to

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the vnode being doomed.  It causes a livelock.

Approved by:	re (scottl)
This commit is contained in:
tegge 2005-09-12 15:53:58 +00:00
parent a9f4fdf4f8
commit dcec467d81
1 changed files with 2 additions and 2 deletions
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4
sys/kern/vfs_hash.c
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@ -79,7 +79,7 @@ vfs_hash_get(struct mount *mp, u_int hash, int flags, struct thread *td, struct
VI_LOCK(vp);
mtx_unlock(&vfs_hash_mtx);
error = vget(vp, flags | LK_INTERLOCK, td);
if (error == ENOENT)
if (error == ENOENT && (flags & LK_NOWAIT) == 0)
break;
if (error)
return (error);
@ -124,7 +124,7 @@ vfs_hash_insert(struct vnode *vp, u_int hash, int flags, struct thread *td, stru
VI_LOCK(vp2);
mtx_unlock(&vfs_hash_mtx);
error = vget(vp2, flags | LK_INTERLOCK, td);
if (error == ENOENT)
if (error == ENOENT && (flags & LK_NOWAIT) == 0)
break;
mtx_lock(&vfs_hash_mtx);
LIST_INSERT_HEAD(&vfs_hash_side, vp, v_hashlist);