Mateusz Guzik abd80ddb94 vfs: introduce v_irflag and make v_type smaller ... The current vnode layout is not smp-friendly by having frequently read data avoidably sharing cachelines with very frequently modified fields. In particular v_iflag inspected for VI_DOOMED can be found in the same line with v_usecount. Instead make it available in the same cacheline as the v_op, v_data and v_type which all get read all the time. v_type is avoidably 4 bytes while the necessary data will easily fit in 1. Shrinking it frees up 3 bytes, 2 of which get used here to introduce a new flag field with a new value: VIRF_DOOMED. Reviewed by: kib, jeff Differential Revision: https://reviews.freebsd.org/D22715		2019-12-08 21:30:04 +00:00
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union_subr.c	vfs: introduce v_irflag and make v_type smaller	2019-12-08 21:30:04 +00:00
union_vfsops.c
union_vnops.c	vfs: add VOP_NEED_INACTIVE	2019-08-28 20:34:24 +00:00
union.h