J. Bruce Fields ffe1137ba7 nfsd4: delay filling in write iovec array till after xdr decoding ... Our server rejects compounds containing more than one write operation. It's unclear whether this is really permitted by the spec; with 4.0, it's possibly OK, with 4.1 (which has clearer limits on compound parameters), it's probably not OK. No client that we're aware of has ever done this, but in theory it could be useful. The source of the limitation: we need an array of iovecs to pass to the write operation. In the worst case that array of iovecs could have hundreds of elements (the maximum rwsize divided by the page size), so it's too big to put on the stack, or in each compound op. So we instead keep a single such array in the compound argument. We fill in that array at the time we decode the xdr operation. But we decode every op in the compound before executing any of them. So once we've used that array we can't decode another write. If we instead delay filling in that array till the time we actually perform the write, we can reuse it. Another option might be to switch to decoding compound ops one at a time. I considered doing that, but it has a number of other side effects, and I'd rather fix just this one problem for now. Signed-off-by: J. Bruce Fields <bfields@redhat.com>		2012-11-26 09:08:15 -05:00
..
caching	doc: fix broken references	2011-09-27 18:08:04 +02:00
configfs	configfs: convert to umode_t	2012-01-03 22:54:57 -05:00
nfs	nfsd4: delay filling in write iovec array till after xdr decoding	2012-11-26 09:08:15 -05:00
pohmelfs	Documentation: Fix multiple typo in Documentation	2012-03-07 16:08:24 +01:00
9p.txt	9p: fix 9p.txt to advertise msize instead of maxdata	2011-10-24 11:13:12 -05:00
00-INDEX	smbfs: move to drivers/staging	2010-10-05 09:08:21 -07:00
adfs.txt	adfs: add hexadecimal filetype suffix option	2011-03-22 17:44:17 -07:00
affs.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
afs.txt	AFS: Documentation updates	2009-08-19 10:40:13 -07:00
autofs4-mount-control.txt	Fix common misspellings	2011-03-31 11:26:23 -03:00
automount-support.txt
befs.txt	Documentation: befs.txt: no maintainer, orphaned	2011-08-13 18:34:03 -07:00
bfs.txt	remove mention of CONFIG_KMOD from documentation	2008-07-22 19:24:29 +10:00
btrfs.txt	Fix URL of btrfs-progs git repository in docs	2011-11-30 18:46:02 +01:00
ceph.txt	ceph: enable/disable dentry complete flags via mount option	2012-01-12 11:00:40 -08:00
cifs.txt
coda.txt
cramfs.txt
debugfs.txt	debugfs: more tightly restrict default mount mode	2012-08-27 13:42:02 -07:00
devpts.txt	Document usage of multiple-instances of devpts	2009-01-02 10:19:36 -08:00
directory-locking
dlmfs.txt	Documentation/: it's -> its where appropriate	2010-04-23 02:09:52 +02:00
dnotify_test.c	Documentation/fs/: split txt and source files	2010-03-12 15:52:35 -08:00
dnotify.txt	Documentation/fs/: split txt and source files	2010-03-12 15:52:35 -08:00
ecryptfs.txt
exofs.txt	exofs: Add option to mount by osdname	2011-03-15 15:02:51 +02:00
ext2.txt	Doc fix: ext2 can only have 32,000 subdirs, not 32,768	2009-06-18 13:03:44 -07:00
ext3.txt	ext3: update documentation with barrier=1 default	2012-04-11 11:12:45 +02:00
ext4.txt	ext4: add max_dir_size_kb mount option	2012-08-17 09:48:17 -04:00
fiemap.txt	Documentation/: it's -> its where appropriate	2010-04-23 02:09:52 +02:00
files.txt	Wrap accesses to the fd_sets in struct fdtable	2012-02-19 10:30:52 -08:00
fuse.txt	Documentation/: it's -> its where appropriate	2010-04-23 02:09:52 +02:00
gfs2-glocks.txt	GFS2: Update glock doc to add new stats info	2012-05-10 12:41:40 +01:00
gfs2-uevents.txt	Documentation: Fix multiple typo in Documentation	2012-03-07 16:08:24 +01:00
gfs2.txt	GFS2: Update main gfs2 doc	2012-05-10 11:45:31 +01:00
hfs.txt	Documentation: HFS is orphaned	2011-11-04 12:01:48 -07:00
hfsplus.txt
hpfs.txt	Documentation/: it's -> its where appropriate	2010-04-23 02:09:52 +02:00
inotify.txt	Documentation: fix inotify source file paths	2011-11-04 12:01:47 -07:00
isofs.txt	Documentation: update broken web addresses.	2010-08-04 15:21:40 +02:00
jfs.txt	jfs: Remove obsolete email address	2012-09-17 12:00:01 -05:00
Locking	Documentation: get rid of write_super	2012-08-04 01:25:20 +04:00
locks.txt	doc: fix broken references	2011-09-27 18:08:04 +02:00
logfs.txt	fix "seperate" typos in comments	2010-05-10 11:56:30 +02:00
Makefile	Documentation/fs/: split txt and source files	2010-03-12 15:52:35 -08:00
mandatory-locking.txt
ncpfs.txt	ncpfs: remove dead URL from documentation	2009-09-23 07:39:42 -07:00
nilfs2.txt	nilfs2: remove resize from unsupported features list	2011-07-13 16:08:59 +09:00
ntfs.txt	Fix common misspellings	2011-03-31 11:26:23 -03:00
ocfs2.txt	ocfs2: clean up mount option about atime in ocfs2.txt	2011-05-23 23:37:12 -07:00
omfs.txt	omfs: add filesystem documentation	2008-07-26 12:00:05 -07:00
path-lookup.txt	Fix common misspellings	2011-03-31 11:26:23 -03:00
porting	Documentation: get rid of write_super	2012-08-04 01:25:20 +04:00
proc.txt	oom: remove deprecated oom_adj	2012-10-09 16:22:24 +09:00
qnx6.txt	Documentation: Fix typo in multiple files in Documentation	2012-04-16 14:37:13 +02:00
quota.txt	quota: documentation for sending "below quota" messages via netlink and tiny doc update	2008-08-12 16:07:27 -07:00
ramfs-rootfs-initramfs.txt	Documentation: Fix Broken URL "freshmeat"	2012-02-21 11:43:45 +01:00
relay.txt	relay: add buffer-only channels; useful for early logging	2008-07-26 12:00:04 -07:00
romfs.txt	Documentation/filesystems/romfs.txt: fixing link to genromfs	2011-02-17 22:04:46 +01:00
seq_file.txt	seq_file: use proc_create() in documentation	2009-12-16 07:20:07 -08:00
sharedsubtree.txt	Documentation: Fix trivial typo in filesystems/sharedsubtree.txt	2010-10-25 21:18:21 -04:00
spufs.txt
squashfs.txt	Squashfs: Update documentation to include xattrs	2011-12-30 01:20:24 +00:00
sysfs-pci.txt	PCI: Allow read/write access to sysfs I/O port resources	2010-07-30 09:32:08 -07:00
sysfs-tagging.txt	sysfs-namespaces: add a high-level Documentation file	2010-05-21 09:37:31 -07:00
sysfs.txt	sysfs: propagate umode_t	2012-01-03 22:55:03 -05:00
sysv-fs.txt
tmpfs.txt	mempolicy: document cpuset interaction with tmpfs mpol mount option	2010-05-25 08:06:57 -07:00
ubifs.txt	UBIFS: switch self-check knobs to debugfs	2011-07-04 10:54:28 +03:00
udf.txt	udf: implement mode and dmode mounting options	2009-04-02 12:29:50 +02:00
ufs.txt
vfat.txt	Documentation: update mount option in filesystem/vfat.txt	2012-08-21 16:45:02 -07:00
vfs.txt	Documentation: get rid of write_super	2012-08-04 01:25:20 +04:00
xfs-delayed-logging-design.txt	Fix common misspellings	2011-03-31 11:26:23 -03:00
xfs.txt	xfs: add online discard support	2011-05-24 11:17:13 -05:00
xip.txt	DOC: update xip method info	2008-11-12 17:17:17 -08:00