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freebsd-dev/sys/geom
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Alexander Motin 92d8dadcf8 MFC r201139: 
Add BIO_DELETE support to ada(4):
- For SSDs use TRIM feature of DATA SET MANAGEMENT command, as defined by
ACS-2 specification working draft.
- For CompactFlash use CFA ERASE command, same as ad(4) does.

With this patch, `newfs -E /dev/ada1` was able to restore write speed of
my heavily weared OCZ Vertex SSD (firmware 1.4) up to the initial level
for the most part of it's capacity.

I have no idea whether it is normal, but for some reason it takes 200ms
to handle any TRIM command on this drive, that was making delete extremely
slow. But TRIM command is able to accept long list of LBAs and the length of
that list seems doesn't affect it's execution time. Implemented request
clusting algorithm allowed me to rise delete rate up to reasonable numbers,
when many parallel DELETE requests running.
2010-01-19 12:58:29 +00:00
..
bde Rename the kthread_xxx (e.g. kthread_create()) calls 2007-10-20 23:23:23 +00:00
cache Despite several examples in the kernel, the third argument of 2007-06-04 18:25:08 +00:00
concat MFC r200942: 2010-01-05 13:50:14 +00:00
eli Detach GELI providers on shutdown/reboot, which will allow providers underneath 2009-03-16 19:31:08 +00:00
gate Bump copyright year. 2006-09-08 10:20:44 +00:00
journal Make gjournal work with kernel compiled with "options DIAGNOSTIC". 2009-06-30 14:34:06 +00:00
label MFC r197898: 2009-10-12 21:08:06 +00:00
linux_lvm - Apply the same naming rules of LVM names as done in the LVM code itself. 2009-06-24 22:09:30 +00:00
mirror MFC r200935: 2010-01-05 13:47:55 +00:00
multipath MFC r196579: 2009-09-07 16:25:09 +00:00
nop Remove trailing spaces. 2006-09-30 08:16:49 +00:00
part MFC r201645: 2010-01-15 23:56:19 +00:00
raid3 MFC r200940: 2010-01-05 13:49:18 +00:00
shsec MFC r197898: 2009-10-12 21:08:06 +00:00
stripe MFC r200933: 2010-01-05 13:46:39 +00:00
uzip MFC r201645: 2010-01-15 23:56:19 +00:00
vinum - Fix the issue with read access count modification on RAID-5 plexes properly. 2009-07-18 11:12:48 +00:00
virstor Avoid NULL deference. 2008-06-30 15:21:42 +00:00
zero Remove trailing spaces. 2006-02-01 12:06:01 +00:00
geom_aes.c Don't pass error value pointer to g_read_data(9) at all if we don't 2005-11-30 22:15:00 +00:00
geom_bsd_enc.c Decode as many or as few partition entries as the label claims there 2007-12-09 22:44:22 +00:00
geom_bsd.c Trivial patch to show on which geom has the error been detected. 2008-12-01 15:02:00 +00:00
geom_ccd.c - Fix a potential NULL pointer reference. Note that this should not happen in 2008-11-25 20:28:33 +00:00
geom_ctl.c Add sbuf_new_auto as a shortcut for the very common case of creating a 2008-08-09 11:14:05 +00:00
geom_ctl.h
geom_dev.c MFC r201139: 2010-01-19 12:58:29 +00:00
geom_disk.c MFC r196822, r196823, r196824: 2009-09-15 11:23:59 +00:00
geom_disk.h Revert r190676,190677 2009-04-10 04:08:34 +00:00
geom_dump.c Make the kern.geom.conftxt sysctl more usable by also dumping the 2005-11-12 20:02:02 +00:00
geom_event.c When orphaning a provider, cancel events related to it. 2007-09-27 20:18:34 +00:00
geom_fox.c Don't pass error value pointer to g_read_data(9) at all if we don't 2005-11-30 22:15:00 +00:00
geom_int.h
geom_io.c MFC r196904: 2009-11-17 21:43:42 +00:00
geom_kern.c Add sbuf_new_auto as a shortcut for the very common case of creating a 2008-08-09 11:14:05 +00:00
geom_mbr_enc.c
geom_mbr.c Don't pass error value pointer to g_read_data(9) at all if we don't 2005-11-30 22:15:00 +00:00
geom_pc98_enc.c
geom_pc98.c Don't pass error value pointer to g_read_data(9) at all if we don't 2005-11-30 22:15:00 +00:00
geom_redboot.c Do not stop the loop when an empty or deleted directory entry is found. 2009-06-24 06:42:13 +00:00
geom_slice.c MFC r201645: 2010-01-15 23:56:19 +00:00
geom_slice.h Allow to use g_slice_orphan() from outside. 2006-02-18 11:21:17 +00:00
geom_subr.c Fix a panic which (reportedly) can happen when unmounting a filesystem 2009-07-01 20:16:29 +00:00
geom_sunlabel_enc.c
geom_sunlabel.c Don't pass error value pointer to g_read_data(9) at all if we don't 2005-11-30 22:15:00 +00:00
geom_vfs.c Fix a panic which (reportedly) can happen when unmounting a filesystem 2009-07-01 20:16:29 +00:00
geom_vfs.h Remove the struct thread unuseful argument from bufobj interface. 2008-10-10 21:23:50 +00:00
geom_vol_ffs.c Don't pass error value pointer to g_read_data(9) at all if we don't 2005-11-30 22:15:00 +00:00
geom.h Make gjournal work with kernel compiled with "options DIAGNOSTIC". 2009-06-30 14:34:06 +00:00
notes