freebsd-dev/sys
Rick Macklem 5e99212d36 Post r230394, the Lookup RPC counts for both NFS clients increased
significantly. Upon investigation this was caused by name cache
misses for lookups of "..". For name cache entries for non-".."
directories, the cache entry serves double duty. It maps both the
named directory plus ".." for the parent of the directory. As such,
two ctime values (one for each of the directory and its parent) need
to be saved in the name cache entry.
This patch adds an entry for ctime of the parent directory to the
name cache. It also adds an additional uma zone for large entries
with this time value, in order to minimize memory wastage.
As well, it fixes a couple of cases where the mtime of the parent
directory was being saved instead of ctime for positive name cache
entries. With this patch, Lookup RPC counts return to values similar
to pre-r230394 kernels.

Reported by:	bde
Discussed with:	kib
Reviewed by:	jhb
MFC after:	2 weeks
2012-03-03 01:06:54 +00:00
..
amd64 Add VESA option to GENERIC for amd64 and i386. 2012-03-03 00:11:46 +00:00
arm - Change contigmalloc() to use the vm_paddr_t type instead of an unsigned 2012-03-01 19:58:34 +00:00
boot Fix a long standing bug. The caller expects a non-zero value for success. 2012-02-29 18:11:33 +00:00
bsm
cam Use a better way to silence unneeded internal declaration warnings in 2012-02-23 21:34:14 +00:00
cddl Analogous to r232059, add a parameter for the ZFS file system: 2012-02-26 16:30:39 +00:00
compat Add procfs to jail-mountable filesystems. 2012-02-29 00:30:18 +00:00
conf Add driver for the RME HDSPe AIO/RayDAT sound cards -- snd_hdspe(4). 2012-03-01 13:10:18 +00:00
contrib IFC @231845 2012-02-17 00:27:48 +00:00
crypto Add support for the extended FPU states on amd64, both for native 2012-01-21 17:45:27 +00:00
ddb Use strchr() and strrchr(). 2012-01-02 12:12:10 +00:00
dev Fix a problem that was causing the mpt(4) driver to attach to MegaRAID 2012-03-02 22:00:40 +00:00
fs Post r230394, the Lookup RPC counts for both NFS clients increased 2012-03-03 01:06:54 +00:00
gdb kern cons: introduce infrastructure for console grabbing by kernel 2011-12-17 15:08:43 +00:00
geom If nested scheme allows dump kernel to its partition, we may allow 2012-02-20 06:35:52 +00:00
gnu/fs Use new OSS-based BSD-licensed header for cs sound driver. 2012-02-01 21:38:01 +00:00
i386 Add VESA option to GENERIC for amd64 and i386. 2012-03-03 00:11:46 +00:00
ia64 - Change contigmalloc() to use the vm_paddr_t type instead of an unsigned 2012-03-01 19:58:34 +00:00
isa - There's no need to overwrite the default device method with the default 2011-11-22 21:28:20 +00:00
kern Post r230394, the Lookup RPC counts for both NFS clients increased 2012-03-03 01:06:54 +00:00
kgssapi Add missing break statement to make sure all 3DES etypes really are treated 2011-10-10 09:13:07 +00:00
libkern Implement extensions on top of standards instead of the other way around. 2012-01-03 07:05:30 +00:00
mips When creating a handle for a subregion, be sure to actually math out the new 2012-03-02 21:46:31 +00:00
modules Add driver for the RME HDSPe AIO/RayDAT sound cards -- snd_hdspe(4). 2012-03-01 13:10:18 +00:00
net Use a more appropriate default for the maximum number of addresses in the 2012-02-29 20:58:21 +00:00
net80211 Attempt to catch scan cancellations at exactly the wrong time from occuring. 2012-03-02 02:53:43 +00:00
netatalk Fix typos 2012-02-28 15:07:05 +00:00
netgraph Revert r231829, that was my braino. 2012-02-22 09:08:51 +00:00
netinet - Refresh dynamic tcp rule only if both sides answered keepalive packets. 2012-02-28 22:00:41 +00:00
netinet6 Allow to configure net.inet6.ip6.{accept_rtadv,no_radr} by the loader tunables 2012-03-02 07:23:28 +00:00
netipsec Add multi-FIB IPv6 support to the core network stack supplementing 2012-02-03 13:08:44 +00:00
netipx Convert all users of IF_ADDR_LOCK to use new locking macros that specify 2012-01-05 19:00:36 +00:00
netnatm
netncp Change ncp_scan_bindery_object() to pass a constant search string. 2011-10-16 08:44:03 +00:00
netsmb Add unicode support to msdosfs and smbfs; original pathes from imura, 2011-11-18 03:05:20 +00:00
nfs Add multi-FIB IPv6 support to the core network stack supplementing 2012-02-03 13:08:44 +00:00
nfsclient Post r230394, the Lookup RPC counts for both NFS clients increased 2012-03-03 01:06:54 +00:00
nfsserver Honor NFSv3 commit call (RFC 1813, Section 3.3.21) where when count is 0, 2011-12-15 02:26:53 +00:00
nlm jwd@ reported a problem via email to freebsd-fs@ on Aug 25, 2011 2012-01-31 02:11:05 +00:00
ofed Remove spurious 8bit chars, turning files into plain ASCII. 2012-01-15 13:23:54 +00:00
opencrypto
pc98 Copy amd64 stdarg.h to x86 and replace amd64/i386/pc98 stdarg.h with stubs. 2012-02-28 22:30:58 +00:00
pci Use correct Config registers for RTL8139 family. Unlike RTL8168 and 2012-02-25 04:54:51 +00:00
powerpc - Add a bus_dma tag to each PCI bus that is a child of a Host-PCI bridge. 2012-03-02 20:38:04 +00:00
rpc Both a crash reported on freebsd-current on Oct. 18 under the 2011-11-03 14:38:03 +00:00
security Remove direct access to si_name. 2012-02-10 12:35:57 +00:00
sparc64 - Add a bus_dma tag to each PCI bus that is a child of a Host-PCI bridge. 2012-03-02 20:38:04 +00:00
sys Post r230394, the Lookup RPC counts for both NFS clients increased 2012-03-03 01:06:54 +00:00
teken Link the demo application against ncursesw to make Unicode work. 2011-10-13 14:20:27 +00:00
tools Make vnode_if.awk parse vnode operations with underscores, like VOP_FOO_BAR. 2012-02-21 19:35:59 +00:00
ufs Similar to the fixes in 226967 and 226987, purge any name cache entries 2012-03-02 18:55:19 +00:00
vm Eliminate stale incorrect ARGSUSED comments. 2012-03-02 17:33:51 +00:00
x86 - Change contigmalloc() to use the vm_paddr_t type instead of an unsigned 2012-03-01 19:58:34 +00:00
xdr
xen blkif interface comment cleanups. No functional changes 2012-02-29 17:47:01 +00:00
Makefile Improve the cscope target's handling of MD directories. Automatically 2012-01-03 17:31:27 +00:00