CVS commit: src/sys

["Jason R Thorpe" <thorpej%netbsd.org@localhost>]

Module Name:    src
Committed By:   thorpej
Date:           Fri Aug  5 05:20:39 UTC 2022

Modified Files:
        src/sys/kern: vfs_vnode.c
        src/sys/sys: vnode.h

Log Message:
In vcache_reclaim(), post NOTE_REVOKE immediately after changing the
vnode state to VS_RECLAIMING, before we actually call VOP_RECLAIM(),
which will release the reference on the lower node of a stacked FS
vnode, which is likely to free the upper node's v_klist backing store.

Acquire the vnode interlock when checking for kevent interest now,
because the vp->v_klist pointer is now volatile.

PR kern/56950


To generate a diff of this commit:
cvs rdiff -u -r1.144 -r1.145 src/sys/kern/vfs_vnode.c
cvs rdiff -u -r1.302 -r1.303 src/sys/sys/vnode.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.