bf9c87c813
Reclaimed vnode type is VBAD, so succesful comparision like devvp->v_type != VREG does not imply that the devvp references snapshot, it might be due to a reclaimed vnode. Explicitely check the vnode type. In the the most important case of ffs_blkfree(), the devfs vnode is locked and its type is stable. In other cases, if the vnode is reclaimed right after the check, hopefully the buffer methods return right error codes. Reviewed by: mckusick Sponsored by: The FreeBSD Foundation MFC after: 2 weeks |
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