freebsd-dev/sys/fs/tmpfs
Mateusz Guzik 074ad60a4c vfs: make write suspension mandatory
At the time opt-in was introduced adding yourself as a writer was esrializing
across the mount point. Nowadays it is fully per-cpu, the only impact being
a small single-threaded hit on top of what's there right now.

Vast majority of the overhead stems from the call to VOP_GETWRITEMOUNT which
has is done regardless.

Should someone want to microoptimize this single-threaded they can coalesce
looking the mount up with adding a write to it.
2020-02-15 13:00:39 +00:00
..
tmpfs_fifoops.c vfs: flatten vop vectors 2019-12-16 00:06:22 +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 tmpfs: inline tmpfs_update 2020-02-03 17:06:21 +00:00
tmpfs_vfsops.c vfs: make write suspension mandatory 2020-02-15 13:00:39 +00:00
tmpfs_vnops.c tmpfs: inline tmpfs_update 2020-02-03 17:06:21 +00:00
tmpfs_vnops.h Rework pathconf handling for FIFOs. 2017-12-19 22:39:05 +00:00
tmpfs.h tmpfs: add nomtime mount option, 2020-02-04 19:05:58 +00:00