| History log of /src/sys/kern/subr_iostat.c |
| Revision | | Date | Author | Comments |
| 1.26 |
| 04-May-2024 |
mlelstv | Account for trailing NUL bytes when calculating userland buffer size.
|
| 1.25 |
| 22-May-2019 |
hannken | Implement disk_rename()/iostat_rename() to rename a disk.
Use it from zvol_rename_minor() when renaming a ZVOL.
|
| 1.24 |
| 03-Sep-2018 |
riastradh | Rename min/max -> uimin/uimax for better honesty.
These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.
HOWEVER! Some subsystems have
#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))
even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.
To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.
I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:
cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))
It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.
Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)
|
| 1.23 |
| 01-Jun-2017 |
chs | branches: 1.23.8; 1.23.10;
remove checks for failure after memory allocation calls that cannot fail:
kmem_alloc() with KM_SLEEP
kmem_zalloc() with KM_SLEEP
percpu_alloc()
pserialize_create()
psref_class_create()
all of these paths include an assertion that the allocation has not failed,
so callers should not assert that again.
|
| 1.22 |
| 05-Mar-2017 |
mlelstv | Enhance disk metrics by calculating a weighted sum that is incremented
by the number of concurrent I/O requests. Also introduce a new disk_wait()
function to measure requests waiting in a bufq.
iostat -y now reports data about waiting and active requests.
So far only drivers using dksubr and dk, ccd, wd and xbd collect data about
waiting requests.
|
| 1.21 |
| 18-Oct-2014 |
snj | branches: 1.21.2; 1.21.4; 1.21.6;
src is too big these days to tolerate superfluous apostrophes. It's
"its", people!
|
| 1.20 |
| 25-Feb-2014 |
pooka | Ensure that the top level sysctl nodes (kern, vfs, net, ...) exist before
the sysctl link sets are processed, and remove redundancy.
Shaves >13kB off of an amd64 GENERIC, not to mention >1k duplicate
lines of code.
|
| 1.19 |
| 30-Nov-2009 |
pooka | branches: 1.19.12; 1.19.22; 1.19.26;
Create CTL_HW before creating nodes on top of it (sysctl constructors
run in "random" order).
|
| 1.18 |
| 16-Sep-2009 |
pooka | Replace a large number of link set based sysctl node creations with
calls from subsystem constructors. Benefits both future kernel
modules and rump.
no change to sysctl nodes on i386/MONOLITHIC & build tested i386/ALL
|
| 1.17 |
| 04-Apr-2009 |
ad | Add disk_isbusy(), iostat_isbusy().
|
| 1.16 |
| 22-Jan-2009 |
yamt | branches: 1.16.2;
malloc -> kmem_alloc
|
| 1.15 |
| 20-May-2008 |
ad | branches: 1.15.6; 1.15.8;
Remove pointless COMPAT ifdef.
|
| 1.14 |
| 28-Apr-2008 |
martin | branches: 1.14.2;
Remove clause 3 and 4 from TNF licenses
|
| 1.13 |
| 09-Feb-2007 |
ad | branches: 1.13.40; 1.13.42; 1.13.44;
Merge newlock2 to head.
|
| 1.12 |
| 07-Dec-2006 |
ad | iostat: avoid sleeping with a held simple_lock.
|
| 1.11 |
| 23-Aug-2006 |
christos | branches: 1.11.2; 1.11.4; 1.11.6;
Change iostat_alloc() to take the parent pointer and the name directly, so
that callers are not responsible for initializing the fields. Store the name
inside the struct instead of maintaining a pointer to external storage, or
leaked memory (nfs case).
|
| 1.10 |
| 07-Jun-2006 |
kardel | branches: 1.10.4;
merge FreeBSD timecounters from branch simonb-timecounters
- struct timeval time is gone
time.tv_sec -> time_second
- struct timeval mono_time is gone
mono_time.tv_sec -> time_uptime
- access to time via
{get,}{micro,nano,bin}time()
get* versions are fast but less precise
- support NTP nanokernel implementation (NTP API 4)
- further reading:
Timecounter Paper: http://phk.freebsd.dk/pubs/timecounter.pdf
NTP Nanokernel: http://www.eecis.udel.edu/~mills/ntp/html/kern.html
|
| 1.9 |
| 21-Apr-2006 |
yamt | branches: 1.9.2; 1.9.4; 1.9.6; 1.9.8;
iostat_alloc: don't forget to initialize io_busy etc.
fix weird "time" in iostat.
|
| 1.8 |
| 21-Apr-2006 |
yamt | iostat_find/disk_find: constify and simplify.
|
| 1.7 |
| 21-Apr-2006 |
yamt | sysctl_io_stats_setup: HW_IOSTATS is iostats, not drivestats.
|
| 1.6 |
| 21-Apr-2006 |
yamt | remove some unnecessary #include.
|
| 1.5 |
| 21-Apr-2006 |
yamt | iostat_alloc: use waitok allocation.
|
| 1.4 |
| 21-Apr-2006 |
yamt | unwrap a short line.
|
| 1.3 |
| 21-Apr-2006 |
yamt | whitespace.
|
| 1.2 |
| 20-Apr-2006 |
blymn | Prefix iostat structure elements with io_
|
| 1.1 |
| 14-Apr-2006 |
blymn | branches: 1.1.2;
Functions to support io statistics collection.
|
| 1.1.2.3 |
| 11-May-2006 |
elad | sync with head
|
| 1.1.2.2 |
| 19-Apr-2006 |
elad | sync with head.
|
| 1.1.2.1 |
| 14-Apr-2006 |
elad | file subr_iostat.c was added on branch elad-kernelauth on 2006-04-19 05:14:00 +0000
|
| 1.9.8.2 |
| 24-May-2006 |
tron | Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
|
| 1.9.8.1 |
| 21-Apr-2006 |
tron | file subr_iostat.c was added on branch peter-altq on 2006-05-24 15:50:41 +0000
|
| 1.9.6.4 |
| 03-Sep-2006 |
yamt | sync with head.
|
| 1.9.6.3 |
| 26-Jun-2006 |
yamt | sync with head.
|
| 1.9.6.2 |
| 24-May-2006 |
yamt | sync with head.
|
| 1.9.6.1 |
| 21-Apr-2006 |
yamt | file subr_iostat.c was added on branch yamt-pdpolicy on 2006-05-24 10:58:41 +0000
|
| 1.9.4.1 |
| 19-Jun-2006 |
chap | Sync with head.
|
| 1.9.2.2 |
| 22-Apr-2006 |
simonb | Sync with head.
|
| 1.9.2.1 |
| 21-Apr-2006 |
simonb | file subr_iostat.c was added on branch simonb-timecounters on 2006-04-22 11:39:59 +0000
|
| 1.10.4.4 |
| 26-Feb-2007 |
yamt | sync with head.
|
| 1.10.4.3 |
| 30-Dec-2006 |
yamt | sync with head.
|
| 1.10.4.2 |
| 21-Jun-2006 |
yamt | sync with head.
|
| 1.10.4.1 |
| 07-Jun-2006 |
yamt | file subr_iostat.c was added on branch yamt-lazymbuf on 2006-06-21 15:09:38 +0000
|
| 1.11.6.1 |
| 10-Dec-2006 |
yamt | sync with head.
|
| 1.11.4.2 |
| 09-Sep-2006 |
rpaulo | sync with head
|
| 1.11.4.1 |
| 23-Aug-2006 |
rpaulo | file subr_iostat.c was added on branch rpaulo-netinet-merge-pcb on 2006-09-09 02:57:16 +0000
|
| 1.11.2.2 |
| 04-Feb-2007 |
ad | Replace lockmgr() locks.
|
| 1.11.2.1 |
| 12-Jan-2007 |
ad | Sync with head.
|
| 1.13.44.3 |
| 11-Mar-2010 |
yamt | sync with head
|
| 1.13.44.2 |
| 04-May-2009 |
yamt | sync with head.
|
| 1.13.44.1 |
| 16-May-2008 |
yamt | sync with head.
|
| 1.13.42.2 |
| 04-Jun-2008 |
yamt | sync with head
|
| 1.13.42.1 |
| 18-May-2008 |
yamt | sync with head.
|
| 1.13.40.1 |
| 02-Jun-2008 |
mjf | Sync with HEAD.
|
| 1.14.2.1 |
| 23-Jun-2008 |
wrstuden | Sync w/ -current. 34 merge conflicts to follow.
|
| 1.15.8.1 |
| 04-Apr-2009 |
snj | Pull up following revision(s) (requested by ad in ticket #657):
sys/kern/subr_disk.c: revision 1.95
sys/kern/subr_iostat.c: revision 1.17
sys/sys/disk.h: revision 1.52
sys/sys/iostat.h: revision 1.10
Add disk_isbusy(), iostat_isbusy().
|
| 1.15.6.2 |
| 28-Apr-2009 |
skrll | Sync with HEAD.
|
| 1.15.6.1 |
| 03-Mar-2009 |
skrll | Sync with HEAD.
|
| 1.16.2.1 |
| 13-May-2009 |
jym | Sync with HEAD.
Commit is split, to avoid a "too many arguments" protocol error.
|
| 1.19.26.1 |
| 18-May-2014 |
rmind | sync with head
|
| 1.19.22.2 |
| 03-Dec-2017 |
jdolecek | update from HEAD
|
| 1.19.22.1 |
| 20-Aug-2014 |
tls | Rebase to HEAD as of a few days ago.
|
| 1.19.12.1 |
| 22-May-2014 |
yamt | sync with head.
for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.
this commit was splitted into small chunks to avoid
a limitation of cvs. ("Protocol error: too many arguments")
|
| 1.21.6.1 |
| 21-Apr-2017 |
bouyer | Sync with HEAD
|
| 1.21.4.1 |
| 20-Mar-2017 |
pgoyette | Sync with HEAD
|
| 1.21.2.1 |
| 28-Aug-2017 |
skrll | Sync with HEAD
|
| 1.23.10.1 |
| 10-Jun-2019 |
christos | Sync with HEAD
|
| 1.23.8.1 |
| 06-Sep-2018 |
pgoyette | Sync with HEAD
Resolve a couple of conflicts (result of the uimin/uimax changes)
|
