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
doc: fix broken references
2011-09-27 18:08:04 +02:00
configfs: convert to umode_t
2012-01-03 22:54:57 -05:00
nfsd4: delay filling in write iovec array till after xdr decoding
2012-11-26 09:08:15 -05:00
Documentation: Fix multiple typo in Documentation
2012-03-07 16:08:24 +01:00
smbfs: move to drivers/staging
2010-10-05 09:08:21 -07:00
9p: fix 9p.txt to advertise msize instead of maxdata
2011-10-24 11:13:12 -05:00
adfs: add hexadecimal filetype suffix option
2011-03-22 17:44:17 -07:00
Documentation: update broken web addresses.
2010-08-04 15:21:40 +02:00
AFS: Documentation updates
2009-08-19 10:40:13 -07:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
Documentation: befs.txt: no maintainer, orphaned
2011-08-13 18:34:03 -07:00
remove mention of CONFIG_KMOD from documentation
2008-07-22 19:24:29 +10:00
Fix URL of btrfs-progs git repository in docs
2011-11-30 18:46:02 +01:00
ceph: enable/disable dentry complete flags via mount option
2012-01-12 11:00:40 -08:00
debugfs: more tightly restrict default mount mode
2012-08-27 13:42:02 -07:00
Document usage of multiple-instances of devpts
2009-01-02 10:19:36 -08:00
Documentation/: it's -> its where appropriate
2010-04-23 02:09:52 +02:00
Documentation/fs/: split txt and source files
2010-03-12 15:52:35 -08:00
Documentation/fs/: split txt and source files
2010-03-12 15:52:35 -08:00
exofs: Add option to mount by osdname
2011-03-15 15:02:51 +02:00
Doc fix: ext2 can only have 32,000 subdirs, not 32,768
2009-06-18 13:03:44 -07:00
ext3: update documentation with barrier=1 default
2012-04-11 11:12:45 +02:00
ext4: add max_dir_size_kb mount option
2012-08-17 09:48:17 -04:00
Documentation/: it's -> its where appropriate
2010-04-23 02:09:52 +02:00
Wrap accesses to the fd_sets in struct fdtable
2012-02-19 10:30:52 -08:00
Documentation/: it's -> its where appropriate
2010-04-23 02:09:52 +02:00
GFS2: Update glock doc to add new stats info
2012-05-10 12:41:40 +01:00
Documentation: Fix multiple typo in Documentation
2012-03-07 16:08:24 +01:00
GFS2: Update main gfs2 doc
2012-05-10 11:45:31 +01:00
Documentation: HFS is orphaned
2011-11-04 12:01:48 -07:00
Documentation/: it's -> its where appropriate
2010-04-23 02:09:52 +02:00
Documentation: fix inotify source file paths
2011-11-04 12:01:47 -07:00
Documentation: update broken web addresses.
2010-08-04 15:21:40 +02:00
jfs: Remove obsolete email address
2012-09-17 12:00:01 -05:00
Documentation: get rid of write_super
2012-08-04 01:25:20 +04:00
doc: fix broken references
2011-09-27 18:08:04 +02:00
fix "seperate" typos in comments
2010-05-10 11:56:30 +02:00
Documentation/fs/: split txt and source files
2010-03-12 15:52:35 -08:00
ncpfs: remove dead URL from documentation
2009-09-23 07:39:42 -07:00
nilfs2: remove resize from unsupported features list
2011-07-13 16:08:59 +09:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
ocfs2: clean up mount option about atime in ocfs2.txt
2011-05-23 23:37:12 -07:00
omfs: add filesystem documentation
2008-07-26 12:00:05 -07:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
Documentation: get rid of write_super
2012-08-04 01:25:20 +04:00
oom: remove deprecated oom_adj
2012-10-09 16:22:24 +09:00
Documentation: Fix typo in multiple files in Documentation
2012-04-16 14:37:13 +02:00
quota: documentation for sending "below quota" messages via netlink and tiny doc update
2008-08-12 16:07:27 -07:00
Documentation: Fix Broken URL "freshmeat"
2012-02-21 11:43:45 +01:00
relay: add buffer-only channels; useful for early logging
2008-07-26 12:00:04 -07:00
Documentation/filesystems/romfs.txt: fixing link to genromfs
2011-02-17 22:04:46 +01:00
seq_file: use proc_create() in documentation
2009-12-16 07:20:07 -08:00
Documentation: Fix trivial typo in filesystems/sharedsubtree.txt
2010-10-25 21:18:21 -04:00
Squashfs: Update documentation to include xattrs
2011-12-30 01:20:24 +00:00
PCI: Allow read/write access to sysfs I/O port resources
2010-07-30 09:32:08 -07:00
sysfs-namespaces: add a high-level Documentation file
2010-05-21 09:37:31 -07:00
sysfs: propagate umode_t
2012-01-03 22:55:03 -05:00
mempolicy: document cpuset interaction with tmpfs mpol mount option
2010-05-25 08:06:57 -07:00
UBIFS: switch self-check knobs to debugfs
2011-07-04 10:54:28 +03:00
udf: implement mode and dmode mounting options
2009-04-02 12:29:50 +02:00
Documentation: update mount option in filesystem/vfat.txt
2012-08-21 16:45:02 -07:00
Documentation: get rid of write_super
2012-08-04 01:25:20 +04:00
Fix common misspellings
2011-03-31 11:26:23 -03:00
xfs: add online discard support
2011-05-24 11:17:13 -05:00
DOC: update xip method info
2008-11-12 17:17:17 -08:00
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