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NeilBrown c6b0a9f87b [PATCH] knfsd: tidy up up meaning of 'buffer size' in nfsd/sunrpc 
There is some confusion about the meaning of 'bufsz' for a sunrpc server.
In some cases it is the largest message that can be sent or received.  In
other cases it is the largest 'payload' that can be included in a NFS
message.

In either case, it is not possible for both the request and the reply to be
this large.  One of the request or reply may only be one page long, which
fits nicely with NFS.

So we remove 'bufsz' and replace it with two numbers: 'max_payload' and
'max_mesg'.  Max_payload is the size that the server requests.  It is used
by the server to check the max size allowed on a particular connection:
depending on the protocol a lower limit might be used.

max_mesg is the largest single message that can be sent or received.  It is
calculated as the max_payload, rounded up to a multiple of PAGE_SIZE, and
with PAGE_SIZE added to overhead.  Only one of the request and reply may be
this size.  The other must be at most one page.

Cc: Greg Banks <gnb@sgi.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06 08:53:41 -07:00
..
9p [PATCH] r/o bind mount prepwork: inc_nlink() helper 2006-10-01 00:39:30 -07:00
adfs [PATCH] Streamline generic_file_* interfaces and filemap cleanups 2006-10-01 00:39:28 -07:00
affs [PATCH] Streamline generic_file_* interfaces and filemap cleanups 2006-10-01 00:39:28 -07:00
afs [PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers 2006-10-03 08:03:40 -07:00
autofs [PATCH] r/o bind mount prepwork: inc_nlink() helper 2006-10-01 00:39:30 -07:00
autofs4 [PATCH] r/o bind mounts: monitor zeroing of i_nlink 2006-10-01 00:39:30 -07:00
befs fix file specification in comments 2006-10-03 23:01:26 +02:00
bfs [PATCH] r/o bind mount prepwork: inc_nlink() helper 2006-10-01 00:39:30 -07:00
cifs Still more typo fixes 2006-10-03 22:36:44 +02:00
coda [PATCH] r/o bind mount prepwork: inc_nlink() helper 2006-10-01 00:39:30 -07:00
configfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6 2006-10-04 09:06:16 -07:00
cramfs [PATCH] cramfs: make cramfs_uncompress_exit() return void 2006-09-29 09:18:20 -07:00
debugfs debugfs: spelling fix 2006-10-03 23:28:36 +02:00
devpts [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
dlm [GFS2] inode_diet: Replace inode.u.generic_ip with inode.i_private (gfs) 2006-09-28 08:32:24 -04:00
ecryptfs [PATCH] ecryptfs: fs/Makefile and fs/Kconfig 2006-10-04 07:55:24 -07:00
efs [PATCH] Really ignore kmem_cache_destroy return value 2006-09-27 08:26:10 -07:00
exportfs [PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers 2006-10-03 08:03:40 -07:00
ext2 [PATCH] r/o bind mounts: unlink: monitor i_nlink 2006-10-01 00:39:30 -07:00
ext3 [PATCH] r/o bind mounts: monitor zeroing of i_nlink 2006-10-01 00:39:30 -07:00
fat [PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers 2006-10-03 08:03:40 -07:00
freevxfs [PATCH] freevxfs: fix leak on error path 2006-09-29 09:18:20 -07:00
fuse [PATCH] r/o bind mounts: monitor zeroing of i_nlink 2006-10-01 00:39:30 -07:00
gfs2 [GFS2] Fix endian bug for de_type 2006-10-03 21:03:35 -04:00
hfs [PATCH] r/o bind mounts: monitor zeroing of i_nlink 2006-10-01 00:39:30 -07:00
hfsplus fix file specification in comments 2006-10-03 23:01:26 +02:00
hostfs [PATCH] Streamline generic_file_* interfaces and filemap cleanups 2006-10-01 00:39:28 -07:00
hpfs [PATCH] r/o bind mounts: monitor zeroing of i_nlink 2006-10-01 00:39:30 -07:00
hppfs [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
hugetlbfs [PATCH] r/o bind mount prepwork: inc_nlink() helper 2006-10-01 00:39:30 -07:00
isofs Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
jbd fix file specification in comments 2006-10-03 23:01:26 +02:00
jffs [PATCH] r/o bind mounts: unlink: monitor i_nlink 2006-10-01 00:39:30 -07:00
jffs2 [PATCH] r/o bind mount prepwork: inc_nlink() helper 2006-10-01 00:39:30 -07:00
jfs JFS: White space cleanup 2006-10-02 09:55:27 -05:00
lockd [PATCH] knfsd: lockd: fix refount on nsm 2006-10-04 07:55:20 -07:00
minix [PATCH] r/o bind mounts: unlink: monitor i_nlink 2006-10-01 00:39:30 -07:00
msdos [PATCH] r/o bind mounts: monitor zeroing of i_nlink 2006-10-01 00:39:30 -07:00
ncpfs [PATCH] Move ncpfs 32bit compat ioctl to ncpfs 2006-10-01 00:39:23 -07:00
nfs Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
nfs_common
nfsd [PATCH] knfsd: tidy up up meaning of 'buffer size' in nfsd/sunrpc 2006-10-06 08:53:41 -07:00
nls fix file specification in comments 2006-10-03 23:01:26 +02:00
ntfs [PATCH] Streamline generic_file_* interfaces and filemap cleanups 2006-10-01 00:39:28 -07:00
ocfs2 [PATCH] r/o bind mounts: clean up OCFS2 nlink handling 2006-10-01 00:39:30 -07:00
openpromfs Move several *_SUPER_MAGIC symbols to include/linux/magic.h. 2006-09-24 11:13:19 -04:00
partitions [PATCH] fs/partitions: Conversion to generic boolean 2006-10-01 00:39:19 -07:00
proc IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
qnx4 [PATCH] r/o bind mounts: monitor zeroing of i_nlink 2006-10-01 00:39:30 -07:00
ramfs [PATCH] r/o bind mount prepwork: inc_nlink() helper 2006-10-01 00:39:30 -07:00
reiserfs Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/configh 2006-10-04 09:59:57 -07:00
romfs [PATCH] Really ignore kmem_cache_destroy return value 2006-09-27 08:26:10 -07:00
smbfs [PATCH] Streamline generic_file_* interfaces and filemap cleanups 2006-10-01 00:39:28 -07:00
sysfs [PATCH] pr_debug: sysfs: use size_t length modifier in pr_debug format arguments 2006-10-03 08:04:19 -07:00
sysv [PATCH] r/o bind mounts: unlink: monitor i_nlink 2006-10-01 00:39:30 -07:00
udf [PATCH] UDF: Fix mounting read-write 2006-10-05 16:18:55 -07:00
ufs [PATCH] r/o bind mounts: unlink: monitor i_nlink 2006-10-01 00:39:30 -07:00
vfat [PATCH] r/o bind mounts: monitor zeroing of i_nlink 2006-10-01 00:39:30 -07:00
xfs BUG_ON conversion for fs/xfs/ 2006-10-03 23:37:55 +02:00
aio.c [PATCH] pr_debug: aio: use size_t length modifier in pr_debug format arguments 2006-10-03 08:04:19 -07:00
attr.c
bad_inode.c [PATCH] Remove readv/writev methods and use aio_read/aio_write instead 2006-10-01 00:39:28 -07:00
binfmt_aout.c [PATCH] Require mmap handler for a.out executables 2006-09-29 09:18:08 -07:00
binfmt_elf.c [PATCH] Support piping into commands in /proc/sys/kernel/core_pattern 2006-10-01 00:39:33 -07:00
binfmt_elf_fdpic.c [PATCH] elf_fdpic_core_dump: don't take tasklist_lock 2006-09-29 09:18:14 -07:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c [PATCH] Fix unserialized task->files changing 2006-09-29 09:18:12 -07:00
binfmt_script.c
binfmt_som.c [PARISC] Fix fs/binfmt_som.c 2006-10-04 06:51:26 -06:00
bio.c [PATCH] Update axboe@suse.de email address 2006-09-30 20:52:34 +02:00
block_dev.c [PATCH] Streamline generic_file_* interfaces and filemap cleanups 2006-10-01 00:39:28 -07:00
buffer.c [PATCH] BLOCK: Move functions out of buffer code [try #6] 2006-09-30 20:31:19 +02:00
char_dev.c [PATCH] BLOCK: Move extern declarations out of fs/*.c into header files [try #6] 2006-09-30 20:52:18 +02:00
compat.c [PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers 2006-10-03 08:03:40 -07:00
compat_ioctl.c [PATCH] Move ncpfs 32bit compat ioctl to ncpfs 2006-10-01 00:39:23 -07:00
dcache.c [PATCH] knfsd: close a race-opportunity in d_splice_alias 2006-10-04 07:55:21 -07:00
dcookies.c
direct-io.c
dnotify.c [PATCH] file: modify struct fown_struct to use a struct pid 2006-10-02 07:57:14 -07:00
dquot.c [PATCH] dquot: add proper locking when using current->signal->tty 2006-09-29 09:18:14 -07:00
drop_caches.c
eventpoll.c [PATCH] fs/eventpoll: error handling micro-cleanup 2006-10-03 08:03:41 -07:00
exec.c [PATCH] namespaces: utsname: switch to using uts namespaces 2006-10-02 07:57:21 -07:00
fcntl.c [PATCH] file: Add locking to f_getown 2006-10-02 07:57:15 -07:00
fifo.c
file.c [PATCH] expand_fdtable(): remove pointless unlock+lock 2006-09-29 09:18:25 -07:00
file_table.c [PATCH] file: modify struct fown_struct to use a struct pid 2006-10-02 07:57:14 -07:00
filesystems.c [PATCH] Ban register_filesystem(NULL); 2006-09-29 09:18:20 -07:00
fs-writeback.c [PATCH] BLOCK: Remove dependence on existence of blockdev_superblock [try #6] 2006-09-30 20:52:26 +02:00
generic_acl.c [PATCH] Generic infrastructure for acls 2006-09-29 09:18:24 -07:00
inode.c [PATCH] fs/inode.c tweaks 2006-10-02 07:57:14 -07:00
inotify.c
inotify_user.c
internal.h [PATCH] CONFIG_BLOCK internal.h cleanups 2006-09-30 20:52:32 +02:00
ioctl.c
ioprio.c [PATCH] Update axboe@suse.de email address 2006-09-30 20:52:34 +02:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6 2006-10-04 09:06:16 -07:00
Kconfig.binfmt
libfs.c [PATCH] r/o bind mount prepwork: inc_nlink() helper 2006-10-01 00:39:30 -07:00
locks.c [PATCH] file: modify struct fown_struct to use a struct pid 2006-10-02 07:57:14 -07:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6 2006-10-04 09:06:16 -07:00
mbcache.c [PATCH] mbcache: add lock annotation for __mb_cache_entry_release_unlock() 2006-09-29 09:18:07 -07:00
mpage.c [PATCH] BLOCK: Dissociate generic_writepages() from mpage stuff [try #6] 2006-09-30 20:52:26 +02:00
namei.c [PATCH] r/o bind mount prepwork: move open_namei()'s vfs_create() 2006-10-01 00:39:30 -07:00
namespace.c [PATCH] namespaces: incorporate fs namespace into nsproxy 2006-10-02 07:57:20 -07:00
nfsctl.c
no-block.c [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
open.c [PATCH] r/o bind mounts: prepare for write access checks: collapse if() 2006-10-01 00:39:30 -07:00
pipe.c [PATCH] Some cleanup in the pipe code 2006-10-01 00:39:33 -07:00
pnode.c
pnode.h
posix_acl.c [PATCH] kmemdup: some users 2006-10-01 00:39:19 -07:00
quota.c [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
quota_v1.c
quota_v2.c
read_write.c [PATCH] Add vector AIO support 2006-10-01 00:39:29 -07:00
read_write.h [PATCH] Remove readv/writev methods and use aio_read/aio_write instead 2006-10-01 00:39:28 -07:00
readdir.c [PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers 2006-10-03 08:03:40 -07:00
select.c [PATCH] enforce RLIMIT_NOFILE in poll() 2006-09-29 09:18:23 -07:00
seq_file.c
splice.c [PATCH] Update axboe@suse.de email address 2006-09-30 20:52:34 +02:00
stat.c [PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbers 2006-10-03 08:03:40 -07:00
super.c [PATCH] BLOCK: Make it possible to disable the block layer [try #6] 2006-09-30 20:52:31 +02:00
sync.c [PATCH] BLOCK: Move functions out of buffer code [try #6] 2006-09-30 20:31:19 +02:00
utimes.c [PATCH] Create fs/utimes.c 2006-10-01 00:39:19 -07:00
xattr.c
xattr_acl.c