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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tmpfs_fifoops.c	tmpfs: ignore tmpfs_set_status() if mount point is read-only.	2019-04-02 13:49:32 +00:00
tmpfs_fifoops.h	sys/fs: further adoption of SPDX licensing ID tags.	2017-11-27 15:15:37 +00:00
tmpfs_subr.c	vfs: introduce v_irflag and make v_type smaller	2019-12-08 21:30:04 +00:00
tmpfs_vfsops.c	Stop using per-mount tmpfs zones.	2019-12-05 00:03:17 +00:00
tmpfs_vnops.c	vfs: introduce v_irflag and make v_type smaller	2019-12-08 21:30:04 +00:00
tmpfs_vnops.h	Rework pathconf handling for FIFOs.	2017-12-19 22:39:05 +00:00
tmpfs.h	Stop using per-mount tmpfs zones.	2019-12-05 00:03:17 +00:00