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76cae067b8
freebsd-dev/sys
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Konstantin Belousov 76cae067b8 By doing file extension fast, it is possible to create excess supply 
of the D_NEWBLK kinds of dependencies (i.e. D_ALLOCDIRECT and
D_ALLOCINDIR), which can exhaust kmem.

Handle excess of D_NEWBLK in the same way as excess of D_INODEDEP and
D_DIRREM, by scheduling ast to flush dependencies, after the thread,
which created new dep, left the VFS/FFS innards.  For D_NEWBLK, the
only way to get rid of them is to do full sync, since items are
attached to data blocks of arbitrary vnodes.  The check for D_NEWBLK
excess in softdep_ast_cleanup_proc() is unlocked.

For 32bit arches, reduce the total amount of allowed dependencies by
two.  It could be considered increasing the limit for 64 bit platforms
with direct maps.

Reported and tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2015-09-01 13:07:27 +00:00
..
amd64 Remove an unneeded instruction. 2015-08-28 00:17:21 +00:00
arm Clean up the style of the LEAVE_HYP macro. 2015-08-31 09:39:16 +00:00
arm64 Add the SOC_HISI_HI6220 option. This will be used to enable drivers for 2015-08-26 18:09:17 +00:00
boot Add support for the UGA draw protocol. This includes adding a 2015-08-30 23:58:53 +00:00
bsm
cam Remove 600 bytes of port_priv from struct ctl_io_hdr. 2015-08-29 15:33:31 +00:00
cddl Apply the noline attribute to vdev_queue_max_async_writes 2015-08-31 23:10:42 +00:00
compat Decompose linkat()/renameat() rights to source and target. 2015-08-27 15:16:41 +00:00
conf Comment out cleaning files, since it cleans too much. 2015-08-28 16:29:38 +00:00
contrib Fix compilation error on gcc-5.2.0 - it now warns on non-paranthen'ed 2015-08-30 08:46:50 +00:00
crypto const'ify an arg that we don't update... 2015-07-29 23:37:15 +00:00
ddb Make kstack_pages a tunable on arm, x86, and powepc. On i386, the 2015-08-10 17:18:21 +00:00
dev Remove an variable we only ever write to, and stop assigning 0 to values 2015-09-01 10:47:42 +00:00
fs Fix an NFS server bug that manifested in "ls -al" displaying a plus 2015-08-28 14:26:11 +00:00
gdb CALLOUT_MPSAFE has lost its meaning since r141428, i.e., for more than ten 2015-05-22 17:05:21 +00:00
geom Create a RouterBoard platform and use it to create a flash map 2015-08-22 05:50:18 +00:00
gnu Using consistent coding style to deal with error inside the loop. 2015-08-18 13:16:23 +00:00
i386 preload_search_info: make sure mod is set 2015-08-21 15:57:57 +00:00
isa
kern callout_reset: fix a reversed check for cc_exec_cancel 2015-09-01 09:27:14 +00:00
kgssapi
libkern Remove checks for __ARM_EABI__, we only build for EABI now. 2015-07-09 21:02:40 +00:00
mips Enable hardfloat for assembly generation. 2015-08-24 19:09:56 +00:00
modules New 1-Wire bus implementation. 1-Wire controller is abstracted, though 2015-08-27 23:33:38 +00:00
net Simplify lla_rt_output()/nd6_add_ifa_lle() by setting lle state in 2015-08-31 05:03:36 +00:00
net80211 Replay r286410. Change KPI of how device drivers that provide wireless 2015-08-27 08:56:39 +00:00
netgraph * Address review (and add a bit myself). 2015-07-12 18:14:38 +00:00
netinet Put r284245 back in place: If at first this fix was seen as a temporary 2015-08-30 13:44:39 +00:00
netinet6 Simplify lla_rt_output()/nd6_add_ifa_lle() by setting lle state in 2015-08-31 05:03:36 +00:00
netipsec Make IPsec work with AES-GCM and AES-ICM (aka CTR) in OCF... IPsec 2015-08-04 17:47:11 +00:00
netnatm
netpfil pf: Remove support for 'scrub fragment crop|drop-ovl' 2015-08-27 21:27:47 +00:00
netsmb
nfs Avoid closing unallocated socket in case socreate fails. 2015-02-28 20:30:29 +00:00
nfsclient Remove some oldnfs remnants. 2015-04-18 16:08:06 +00:00
nfsserver Use M_SIZE() instead of hand-crafted (and mostly correct) NFSMSIZ() macro 2015-01-07 17:22:56 +00:00
nlm
ofed Reinstate unify_tcp_port_space and associated code that was lost during 2015-08-12 22:09:58 +00:00
opencrypto Make IPsec work with AES-GCM and AES-ICM (aka CTR) in OCF... IPsec 2015-08-04 17:47:11 +00:00
pc98 Add missing ofw_machdep.h. Make x86 ofw_machdep.h work pc98 too. 2015-08-28 15:41:09 +00:00
powerpc The TLB1 TSIZE is a multiple of 4, not 2, so shift 2 bits, not 1. 2015-08-29 06:52:14 +00:00
rpc Set curvnet context inside the RPC code in more places. 2015-08-18 18:12:46 +00:00
security fd: make 'rights' a manadatory argument to fget* functions 2015-07-05 19:05:16 +00:00
sparc64 Rationalize BSD license on sys/*/include/in_cksum.h 2015-08-05 19:05:12 +00:00
sys Remove single-use macros obfuscating malloc(9) and free(9) calls. 2015-08-30 17:58:11 +00:00
teken Sync HPA and VPA implementations with CUP. 2015-08-24 07:49:27 +00:00
tools
ufs By doing file extension fast, it is possible to create excess supply 2015-09-01 13:07:27 +00:00
vm Handle held pages earlier in the inactive queue scan. 2015-09-01 06:21:12 +00:00
x86 Add missing ofw_machdep.h. Make x86 ofw_machdep.h work pc98 too. 2015-08-28 15:41:09 +00:00
xdr
xen xen: allow disabling PV disks and nics 2015-08-21 15:53:08 +00:00
Makefile Kill EoL whitespace. 2015-05-29 14:03:07 +00:00