Chuck Lever 1093a60ef3 NLM/NFS: Use cached nlm_host when calling nlmclnt_proc() ... Now that each NFS mount point caches its own nlm_host structure, it can be passed to nlmclnt_proc() for each lock request. By pinning an nlm_host for each mount point, we trade the overhead of looking up or creating a fresh nlm_host struct during every NLM procedure call for a little extra memory. We also restrict the nlmclnt_proc symbol to limit the use of this call to in-tree modules. Note that nlm_lookup_host() (just removed from the client's per-request NLM processing) could also trigger an nlm_host garbage collection. Now client-side nlm_host garbage collection occurs only during NFS mount processing. Since the NFS client now holds a reference on these nlm_host structures, they wouldn't have been affected by garbage collection anyway. Given that nlm_lookup_host() reorders the global nlm_host chain after every successful lookup, and that a garbage collection could be triggered during the call, we've removed a significant amount of per-NLM-request CPU processing overhead. Sidebar: there are only a few remaining references to the internals of NFS inodes in the client-side NLM code. The only references I found are related to extracting or comparing the inode's file handle via NFS_FH(). One is in nlmclnt_grant(); the other is in nlmclnt_setlockargs(). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>		2008-01-30 02:06:07 -05:00
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acpi
asm-alpha
asm-arm	ext4: Add ext4_find_next_bit()	2008-01-28 23:58:27 -05:00
asm-avr32
asm-blackfin
asm-cris
asm-frv
asm-generic	Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild	2008-01-29 22:46:14 +11:00
asm-h8300
asm-ia64
asm-m32r
asm-m68k	ext4: Add ext4_find_next_bit()	2008-01-28 23:58:27 -05:00
asm-m68knommu	ext4: Add ext4_find_next_bit()	2008-01-28 23:58:27 -05:00
asm-mips	[MIPS] Malta, Atlas: move an extern function declaration to the header file	2008-01-29 10:15:05 +00:00
asm-parisc
asm-powerpc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25	2008-01-29 22:54:01 +11:00
asm-ppc
asm-s390	ext4: Add ext4_find_next_bit()	2008-01-28 23:58:27 -05:00
asm-sh
asm-sparc
asm-sparc64
asm-um
asm-v850
asm-x86
asm-xtensa
crypto
keys
linux	NLM/NFS: Use cached nlm_host when calling nlmclnt_proc()	2008-01-30 02:06:07 -05:00
math-emu
media
mtd
net	[NET_SCHED]: act_api: use PTR_ERR in tcf_action_init/tcf_action_get	2008-01-28 15:11:17 -08:00
pcmcia
rdma
rxrpc
scsi
sound
video
xen
Kbuild