Miklos Szeredi 08a53cdce6 [PATCH] fuse: account background requests ...

The previous patch removed limiting the number of outstanding requests.  This
patch adds a much simpler limiting, that is also compatible with file locking
operations.

A task may have at most one synchronous request allocated.  So these requests
need not be otherwise limited.

However the number of background requests (release, forget, asynchronous
reads, interrupted requests) can grow indefinitely.  This can be used by a
malicous user to cause FUSE to allocate arbitrary amounts of unswappable
kernel memory, denying service.

For this reason add a limit for the number of background requests, and block
allocations of new requests until the number goes bellow the limit.

Also use this mechanism to block all requests until the INIT reply is
received.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2006-04-11 06:18:49 -07:00

..

9p

[PATCH] 9p: handle sget() failure

2006-04-11 06:18:41 -07:00

adfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

affs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

afs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

autofs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

autofs4

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

befs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

bfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

cifs

[CIFS] Fix typo in earlier cifs_unlink change and protect one

2006-03-31 22:43:50 +00:00

coda

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

configfs

[PATCH] Bogus NULL pointer check in fs/configfs/dir.c

2006-04-10 11:16:17 -07:00

cramfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

debugfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

devfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

devpts

[PATCH] devpts: use lib/parser.c for parsing mount options

2006-03-23 07:38:17 -08:00

efs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

exportfs

[PATCH] exportfs: add find_acceptable_alias helper

2006-01-18 19:20:28 -08:00

ext2

[PATCH] Introduce sys_splice() system call

2006-03-30 12:28:18 -08:00

ext3

[PATCH] ext3: Fix missed mutex unlock

2006-04-11 06:18:46 -07:00

fat

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

freevxfs

BUG_ON() Conversion in fs/freevxfs/

2006-04-02 13:41:02 +02:00

fuse

[PATCH] fuse: account background requests

2006-04-11 06:18:49 -07:00

hfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

hfsplus

BUG_ON() Conversion in fs/hfsplus/

2006-04-01 01:14:43 +02:00

hostfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

hpfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

hppfs

[PATCH] uml: __user annotations

2006-03-31 12:18:51 -08:00

hugetlbfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

isofs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

jbd

[PATCH] Make address_space_operations->invalidatepage return void

2006-03-26 08:56:55 -08:00

jffs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

jffs2

BUG_ON() Conversion in fs/jffs2/

2006-04-01 01:15:35 +02:00

jfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

lockd

[PATCH] sem2mutex: fs/

2006-03-26 08:56:55 -08:00

minix

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

msdos

[PATCH] fat: kill reserved names

2006-03-31 12:18:55 -08:00

ncpfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

nfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

nfs_common

[PATCH] nfsacl: Solaris VxFS compatibility fix

2005-10-11 09:46:54 -07:00

nfsd

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

nls

[PATCH] fs: Use ARRAY_SIZE macro

2006-03-24 07:33:19 -08:00

ntfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

ocfs2

ocfs2: Better I/O error handling in heartbeat

2006-04-07 18:03:09 -07:00

openpromfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

partitions

Merge ../linux-2.6

2006-03-29 13:24:50 +11:00

proc

[PATCH] kdump proc vmcore size oveflow fix

2006-04-11 06:18:42 -07:00

qnx4

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

ramfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

reiserfs

[PATCH] Introduce sys_splice() system call

2006-03-30 12:28:18 -08:00

romfs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

smbfs

BUG_ON() Conversion in fs/smbfs/

2006-04-01 01:16:26 +02:00

sysfs

[PATCH] sysfs: zero terminate sysfs write buffers

2006-04-02 13:03:31 -07:00

sysv

BUG_ON() Conversion in fs/sysv/

2006-04-02 13:39:21 +02:00

udf

BUG_ON() Conversion in fs/udf/

2006-04-02 13:40:13 +02:00

ufs

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

vfat

[PATCH] fat: kill reserved names

2006-03-31 12:18:55 -08:00

xfs

[PATCH] Add GFP_NOWAIT

2006-04-11 06:18:35 -07:00

aio.c

[PATCH] use kzalloc and kcalloc in core fs code

2006-03-25 08:23:00 -08:00

attr.c

[PATCH] capable/capability.h (fs/)

2006-01-11 18:42:13 -08:00

bad_inode.c

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

binfmt_aout.c

[PATCH] dump_thread() cleanup

2006-01-10 08:01:25 -08:00

binfmt_elf_fdpic.c

BUG_ON() Conversion in fs/binfmt_elf_fdpic.c

2006-03-24 18:38:48 +01:00

binfmt_elf.c

[PATCH] x86_64: Increase the variability of the process stack on 64bit architectures

2006-03-25 09:10:52 -08:00

binfmt_em86.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

binfmt_flat.c

[PATCH] flat binary loader doesn't check fd table full

2006-03-25 08:23:01 -08:00

binfmt_misc.c

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

binfmt_script.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

binfmt_som.c

[PATCH] mm: mm_init set_mm_counters

2005-10-29 21:40:38 -07:00

bio.c

[PATCH] mempool: use mempool_create_slab_pool()

2006-03-26 08:57:00 -08:00

block_dev.c

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

buffer.c

[PATCH] for_each_online_pgdat: renaming for_each_pgdat

2006-03-27 08:44:48 -08:00

char_dev.c

[PATCH] Simplify proc/devices and fix early termination regression

2006-03-31 12:18:53 -08:00

compat_ioctl.c

[PATCH] fs: Use ARRAY_SIZE macro

2006-03-24 07:33:19 -08:00

compat.c

[PATCH] Fold select_bits_alloc/free into caller code.

2006-03-28 09:16:04 -08:00

dcache.c

[PATCH] dcache: Add helper d_hash_and_lookup

2006-03-31 12:19:00 -08:00

dcookies.c

[PATCH] Use __read_mostly on some hot fs variables

2006-03-26 08:56:56 -08:00

direct-io.c

BUG_ON() Conversion in fs/direct-io.c

2006-04-01 01:10:13 +02:00

dnotify.c

[PATCH] Use __read_mostly on some hot fs variables

2006-03-26 08:56:56 -08:00

dquot.c

BUG_ON() Conversion in fs/dquot.c

2006-04-02 13:36:13 +02:00

drop_caches.c

[PATCH] drop-pagecache

2006-01-08 20:12:40 -08:00

eventpoll.c

[PATCH] uniform POLLRDHUP handling between epoll and poll/select

2006-04-11 06:18:42 -07:00

exec.c

[PATCH] process accounting: take original leader's start_time in non-leader exec

2006-04-11 06:18:42 -07:00

fcntl.c

BUG_ON() Conversion in fs/fcntl.c

2006-04-02 13:37:19 +02:00

fifo.c

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

file_table.c

[PATCH] get_empty_filp tweaks, inline epoll_init_file()

2006-03-23 07:38:17 -08:00

file.c

[PATCH] for_each_possible_cpu: fixes for generic part

2006-03-28 09:16:05 -08:00

filesystems.c

[PATCH] fix missing includes

2005-10-30 17:37:32 -08:00

fs-writeback.c

[PATCH] Move cond_resched() after iput() in sync_sb_inodes()

2006-03-25 08:22:56 -08:00

inode.c

BUG_ON() Conversion in fs/inode.c

2006-04-02 13:38:18 +02:00

inotify.c

[PATCH] inotify: check for NULL inode in inotify_d_instantiate

2006-04-11 06:18:45 -07:00

ioctl.c

[PATCH] capable/capability.h (fs/)

2006-01-11 18:42:13 -08:00

ioprio.c

[PATCH] capable/capability.h (fs/)

2006-01-11 18:42:13 -08:00

Kconfig

[PATCH] kdump: enable CONFIG_PROC_VMCORE by default

2006-04-11 06:18:45 -07:00

Kconfig.binfmt

[PATCH] frv: suppress configuration of certain features for FRV

2006-01-08 20:13:36 -08:00

libfs.c

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

locks.c

[PATCH] fs/locks.c: Fix sys_flock() race

2006-03-31 12:18:56 -08:00

Makefile

[PATCH] sys_sync_file_range()

2006-03-31 12:18:54 -08:00

mbcache.c

[PATCH] Typo fixes

2006-03-28 09:16:08 -08:00

mpage.c

[PATCH] map multiple blocks for mpage_readpages()

2006-03-26 08:57:01 -08:00

namei.c

[PATCH] fs/namei.c: make lookup_hash() static

2006-03-31 12:19:01 -08:00

namespace.c

[PATCH] vfs: propagate mnt_flags into do_loopback/vfsmount

2006-04-11 06:18:41 -07:00

nfsctl.c

[PATCH] fs: Use ARRAY_SIZE macro

2006-03-24 07:33:19 -08:00

open.c

Merge branch 'audit.b3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current

2006-03-25 09:24:53 -08:00

pipe.c

[PATCH] splice: fix page stealing LRU handling.

2006-04-02 23:11:04 +02:00

pnode.c

[PATCH] s/;;/;/g

2006-03-24 07:33:24 -08:00

pnode.h

[PATCH] unbindable mounts

2005-11-07 18:18:11 -08:00

posix_acl.c

[PATCH] gfp flags annotations - part 1

2005-10-08 15:00:57 -07:00

quota_v1.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

quota_v2.c

[PATCH] sem2mutex: quota

2006-03-23 07:38:11 -08:00

quota.c

[PATCH] sem2mutex: quota

2006-03-23 07:38:11 -08:00

read_write.c

[PATCH] Make most file operations structs in fs/ const

2006-03-28 09:16:06 -08:00

readdir.c

[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem

2006-01-09 15:59:24 -08:00

select.c

[PATCH] select: don't overflow if (SELECT_STACK_ALLOC % sizeof(long) != 0)

2006-04-11 06:18:41 -07:00

seq_file.c

[PATCH] sem2mutex: fs/seq_file.c

2006-03-23 07:38:12 -08:00

splice.c

[PATCH] splice: fix page stealing LRU handling.

2006-04-02 23:11:04 +02:00

stat.c

[PATCH] fstatat64 support

2006-02-11 21:41:10 -08:00

super.c

[PATCH] sem2mutex: fs/

2006-03-26 08:56:55 -08:00

sync.c

[PATCH] sync_file_range(): use unsigned for flags

2006-04-11 06:18:40 -07:00

xattr_acl.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

xattr.c

[PATCH] Collect more inode information during syscall processing.

2006-03-20 14:08:53 -05:00