Konstantin Belousov aa8c1f8d84 nfs client: block vnode_pager_setsize() calls from nfscl_loadattrcache in nfs_write
Otherwise writing thread might wait on sbusy state of the pages which were
busied by itself, similarly to nfs_read().  But also we need to clear
NVNSETSZKSIP flag possibly set by ncl_pager_setsize(), to not undo
extension done by write.

Reported by:	bdrewery
Reviewed by:	rmacklem
Tested by:	pho
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D28306
2021-01-23 17:24:32 +02:00
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