Brian Behlendorf 165f13c33a Improved vmem cached deadlock detection ... The entire goal of performing the slab allocations asynchronously is to be able to detect when a vmalloc() deadlocks. In this case, and only this case, do we want to start allocating emergency objects. The trick here is to minimize false positives because the overhead of tracking emergency objects is far higher than normal slab objects. With that goal in mind the code was reworked to be less sensitive to slow allocations by increasing the wait time. Once a cache is is marked deadlocked all subsequent allocations which can not be satisfied with existing cache objects will immediately allocate new emergency objects. This behavior persists until the asynchronous allocation completes and clears the deadlocked flag. The result of these tweaks is that far fewer emergency objects get created which is important because this minimizes the cost of releasing them latter in kmem_cache_free(). Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>		2012-11-06 14:54:15 -08:00
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fm	Remove autotools products	2012-08-27 11:46:23 -07:00
fs	Remove autotools products	2012-08-27 11:46:23 -07:00
sysevent	Remove autotools products	2012-08-27 11:46:23 -07:00
acl_impl.h	Public Release Prep	2010-05-17 15:18:00 -07:00
acl.h	Add VSA_ACE_* and MAX_ACL_ENTRIES defines	2011-01-27 16:06:09 -08:00
atomic.h	atomic_*_*_nv() functions need to return the new value atomically.	2010-09-17 16:03:25 -07:00
attr.h	Public Release Prep	2010-05-17 15:18:00 -07:00
bitmap.h	Public Release Prep	2010-05-17 15:18:00 -07:00
bootconf.h	Public Release Prep	2010-05-17 15:18:00 -07:00
bootprops.h	Stub out additional missing headers	2010-06-11 15:57:25 -07:00
buf.h	Public Release Prep	2010-05-17 15:18:00 -07:00
byteorder.h	Public Release Prep	2010-05-17 15:18:00 -07:00
callb.h	Public Release Prep	2010-05-17 15:18:00 -07:00
cmn_err.h	Public Release Prep	2010-05-17 15:18:00 -07:00
compress.h	Public Release Prep	2010-05-17 15:18:00 -07:00
condvar.h	Condition variable reference counts	2012-11-06 14:48:55 -08:00
conf.h	Public Release Prep	2010-05-17 15:18:00 -07:00
console.h	Public Release Prep	2010-05-17 15:18:00 -07:00
cpupart.h	Stub out additional missing headers	2010-06-11 15:57:25 -07:00
cpuvar.h	Public Release Prep	2010-05-17 15:18:00 -07:00
crc32.h	Public Release Prep	2010-05-17 15:18:00 -07:00
cred.h	Add crgetfsuid()/crgetfsgid() helpers	2011-03-22 12:18:44 -07:00
ctype.h	Public Release Prep	2010-05-17 15:18:00 -07:00
ddi.h	Public Release Prep	2010-05-17 15:18:00 -07:00
debug.h	Add --enable-debug-log configure option	2012-02-02 11:27:54 -08:00
dirent.h	Public Release Prep	2010-05-17 15:18:00 -07:00
disp.h	Add kpreempt_[dis|en]able macros in <sys/disp.h>	2012-08-24 15:18:38 -07:00
dkio.h	Add DKIOCTRIM for TRIM support.	2012-09-02 14:22:01 -07:00
dklabel.h	Public Release Prep	2010-05-17 15:18:00 -07:00
dnlc.h	Add dnlc_reduce_cache() support	2011-04-06 20:06:03 -07:00
dumphdr.h	Public Release Prep	2010-05-17 15:18:00 -07:00
efi_partition.h	Public Release Prep	2010-05-17 15:18:00 -07:00
errno.h	Public Release Prep	2010-05-17 15:18:00 -07:00
extdirent.h	Add missing headers	2011-01-27 16:06:09 -08:00
fcntl.h	Use Linux flock struct	2011-02-23 14:32:15 -08:00
file.h	Add FIGNORECASE define	2011-01-27 16:06:09 -08:00
idmap.h	Add missing headers	2011-01-27 16:06:09 -08:00
int_limits.h	Public Release Prep	2010-05-17 15:18:00 -07:00
int_types.h	Public Release Prep	2010-05-17 15:18:00 -07:00
inttypes.h	Public Release Prep	2010-05-17 15:18:00 -07:00
isa_defs.h	Define the needed ISA types for ARM	2012-05-03 09:56:15 -07:00
kidmap.h	Add missing headers	2011-01-27 16:06:09 -08:00
kmem.h	Improved vmem cached deadlock detection	2012-11-06 14:54:15 -08:00
kobj.h	Public Release Prep	2010-05-17 15:18:00 -07:00
kstat.h	Add KSTAT_TYPE_TXG type	2012-11-02 15:17:40 -07:00
list.h	Add list_link_replace() function	2010-08-27 14:23:48 -07:00
mkdev.h	Public Release Prep	2010-05-17 15:18:00 -07:00
mntent.h	Public Release Prep	2010-05-17 15:18:00 -07:00
modctl.h	Public Release Prep	2010-05-17 15:18:00 -07:00
mode.h	Add vn_mode_to_vtype/vn_vtype to_mode helpers	2011-01-12 11:38:04 -08:00
mount.h	Public Release Prep	2010-05-17 15:18:00 -07:00
mutex.h	Mutex ASSERT on self deadlock	2012-08-27 12:00:55 -07:00
note.h	Public Release Prep	2010-05-17 15:18:00 -07:00
open.h	Public Release Prep	2010-05-17 15:18:00 -07:00
param.h	Correct MAXUID	2011-04-29 13:58:45 -07:00
pathname.h	Public Release Prep	2010-05-17 15:18:00 -07:00
policy.h	Minor policy interface	2011-01-27 16:06:09 -08:00
pool.h	Stub out additional missing headers	2010-06-11 15:57:25 -07:00
priv_impl.h	Stub out additional missing headers	2010-06-11 15:57:25 -07:00
proc.h	Cleanly split Linux proc.h (fs) from conflicting Solaris proc.h (process)	2010-06-11 15:57:25 -07:00
processor.h	Public Release Prep	2010-05-17 15:18:00 -07:00
pset.h	Stub out additional missing headers	2010-06-11 15:57:25 -07:00
random.h	Public Release Prep	2010-05-17 15:18:00 -07:00
refstr.h	Public Release Prep	2010-05-17 15:18:00 -07:00
resource.h	Public Release Prep	2010-05-17 15:18:00 -07:00
rwlock.h	Linux 3.2 compat: rw_semaphore.wait_lock is raw	2012-01-11 16:28:05 -08:00
sdt.h	Public Release Prep	2010-05-17 15:18:00 -07:00
sid.h	Add ksid_index_t and ksid_t types	2011-01-27 16:06:09 -08:00
signal.h	Split <sys/debug.h> header	2010-07-20 13:29:35 -07:00
stat.h	Public Release Prep	2010-05-17 15:18:00 -07:00
stropts.h	Public Release Prep	2010-05-17 15:18:00 -07:00
sunddi.h	Remove Solaris module emulation	2012-05-18 13:57:44 -07:00
sunldi.h	Public Release Prep	2010-05-17 15:18:00 -07:00
sysdc.h	Stub out additional missing headers	2010-06-11 15:57:25 -07:00
sysevent.h	Public Release Prep	2010-05-17 15:18:00 -07:00
sysmacros.h	PowerPC Compatibility	2012-07-02 09:33:09 -07:00
systeminfo.h	Read the /etc/hostid file directly.	2011-06-24 09:58:03 -07:00
systm.h	Public Release Prep	2010-05-17 15:18:00 -07:00
t_lock.h	Public Release Prep	2010-05-17 15:18:00 -07:00
taskq.h	Remove TQ_SLEEP -> KM_SLEEP mapping	2012-09-12 11:41:42 -07:00
thread.h	PowerPC Compatibility	2012-07-02 09:33:09 -07:00
time.h	Allow 64-bit timestamps to be set on 64-bit kernels	2011-12-12 11:06:03 -08:00
timer.h	Minor cleanup and Solaris API additions.	2010-06-11 15:57:25 -07:00
tsd.h	Prepend spl_ to all init/fini functions	2011-11-11 09:18:28 -08:00
types32.h	Public Release Prep	2010-05-17 15:18:00 -07:00
types.h	splat: Cleanup headers	2012-11-06 14:48:56 -08:00
u8_textprep.h	Public Release Prep	2010-05-17 15:18:00 -07:00
uio.h	Add xuio_* structures and typedefs.	2010-06-11 15:57:25 -07:00
unistd.h	Public Release Prep	2010-05-17 15:18:00 -07:00
utsname.h	Public Release Prep	2010-05-17 15:18:00 -07:00
va_list.h	Public Release Prep	2010-05-17 15:18:00 -07:00
varargs.h	Public Release Prep	2010-05-17 15:18:00 -07:00
vfs_opreg.h	Public Release Prep	2010-05-17 15:18:00 -07:00
vfs.h	Renamed 'struct fid' for NFS	2011-04-29 12:10:54 -07:00
vmsystm.h	Public Release Prep	2010-05-17 15:18:00 -07:00
vnode.h	Add interface for file hole punching.	2012-10-04 16:22:07 -07:00
zmod.h	Prepend spl_ to all init/fini functions	2011-11-11 09:18:28 -08:00
zone.h	Public Release Prep	2010-05-17 15:18:00 -07:00