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5d7380f8e3
freebsd-dev/sys/geom
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Attilio Rao 5d7380f8e3 Avoid to check the same cache line/variable from all the locking 
primitives by breaking stop_scheduler into a per-thread variable.
Also, store the new td_stopsched very close to td_*locks members as
they will be accessed mostly in the same codepaths as td_stopsched and
this results in avoiding a further cache-line pollution, possibly.

STOP_SCHEDULER() was pondered to use a new 'thread' argument, in order to
take advantage of already cached curthread, but in the end there should
not really be a performance benefit, while introducing a KPI breakage.

In collabouration with:	flo
Reviewed by:	avg
MFC after:	3 months (or never)
X-MFC:		r228424
2012-01-28 14:00:21 +00:00
..
bde Add some FEATURE macros for various GEOM classes. 2011-02-25 10:24:35 +00:00
cache Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
concat Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
eli replace uses of libkern gets with cngets 2011-12-17 15:26:34 +00:00
gate Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
journal Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
label Include sys/sbuf.h directly. 2011-07-11 05:22:31 +00:00
linux_lvm Add some FEATURE macros for various GEOM classes. 2011-02-25 10:24:35 +00:00
mirror Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
mountver Avoid to check the same cache line/variable from all the locking 2012-01-28 14:00:21 +00:00
multipath Major GEOM MULTIPATH class rewrite: 2011-11-12 09:52:27 +00:00
nop Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
part Experimental support for booting CHRP-type PowerPC systems from hard disks. 2012-01-25 03:37:39 +00:00
raid Add support for >2TB disks in GEOM RAID for Intel metadata format. 2012-01-09 23:01:42 +00:00
raid3 Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
sched Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
shsec Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
stripe Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
uncompress GEOM_UNCOMPRESS module, can be used with uzip images and with new ulzma images. 2012-01-04 23:39:11 +00:00
uzip Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
vinum Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
virstor Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
zero Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
geom_aes.c
geom_bsd_enc.c
geom_bsd.c Avoid to check the same cache line/variable from all the locking 2012-01-28 14:00:21 +00:00
geom_ccd.c Include sys/sbuf.h directly. 2011-07-11 05:22:31 +00:00
geom_ctl.c Finish r210923, 210926. Mark some devices as eternal. 2011-01-04 10:59:38 +00:00
geom_ctl.h
geom_dev.c Temporary revert r227009 to fix freeze on UP systems without PREEMPTION. 2011-11-14 19:32:05 +00:00
geom_disk.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
geom_disk.h Plumb device physical path reporting from CAM devices, through GEOM and 2011-06-14 17:10:32 +00:00
geom_dump.c Do not hide stripeoffset from libgeom(3), it may be useful even when 2011-06-02 12:49:45 +00:00
geom_event.c Workaround the problem introduced by combination of r162200 and r215687. 2011-11-01 08:57:49 +00:00
geom_fox.c Add some FEATURE macros for various GEOM classes. 2011-02-25 10:24:35 +00:00
geom_int.h
geom_io.c Correct bioq_disksort so that bioq_insert_tail() offers barrier semantic. 2010-09-02 19:40:28 +00:00
geom_kern.c Move the three geom kprocs as threads under a single pid. 2011-05-11 21:47:30 +00:00
geom_map.c Updates to geom_map from the author. 2011-05-05 14:43:09 +00:00
geom_mbr_enc.c
geom_mbr.c Avoid to check the same cache line/variable from all the locking 2012-01-28 14:00:21 +00:00
geom_pc98_enc.c
geom_pc98.c Avoid to check the same cache line/variable from all the locking 2012-01-28 14:00:21 +00:00
geom_redboot.c - Give geom_redboot taste of flash/spi. Now there is another provider 2010-02-03 01:12:19 +00:00
geom_slice.c Change the way in which zero stripesize is handled. Instead of reporting 2010-01-06 13:14:37 +00:00
geom_slice.h
geom_subr.c Plumb device physical path reporting from CAM devices, through GEOM and 2011-06-14 17:10:32 +00:00
geom_sunlabel_enc.c
geom_sunlabel.c Include sys/sbuf.h directly. 2011-07-11 05:22:31 +00:00
geom_vfs.c Close race between geom destruction on g_vfs_close() when softc destroyed 2011-12-02 17:09:48 +00:00
geom_vfs.h
geom_vol_ffs.c Add some FEATURE macros for various GEOM classes. 2011-02-25 10:24:35 +00:00
geom.h Add some spare fields to the g_class and g_geom structures needed to implement 2011-07-17 20:35:30 +00:00
notes