3c484f325e
There are several negative side-effects of not calling into VOP layer at all for page cache reads. The biggest is the missed activation of EVFILT_READ knotes. Also, it allows filesystem to make more fine grained decision to refuse read from page cache. Keep VIRF_PGREAD flag around, it is still useful for nullfs, and for asserts. Reviewed by: markj Tested by: pho Discussed with: mjg Sponsored by: The FreeBSD Foundation Differential revision: https://reviews.freebsd.org/D26346 |
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