David Howells 9dc8d9bfe4 CacheFiles: Implement invalidation ...

Implement invalidation for CacheFiles.  This is in two parts:

 (1) Provide an invalidation method (which just truncates the backing file).

 (2) Abort attempts to copy anything read from the backing file whilst
     invalidation is in progress.

Question: CacheFiles uses truncation in a couple of places.  It has been using
notify_change() rather than sys_truncate() or something similar.  This means
it bypasses a bunch of checks and suchlike that it possibly should be making
(security, file locking, lease breaking, vfsmount write).  Should it be using
vfs_truncate() as added by a preceding patch or should it use notify_write()
and assume that anyone poking around in the cache files on disk gets
everything they deserve?

Signed-off-by: David Howells <dhowells@redhat.com>

2012-12-20 22:06:08 +00:00

..

9p

The following changes since commit 4cbe5a555fa58a79b6ecbb6c531b8bab0650778d:

2012-10-12 09:59:23 +09:00

adfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

affs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

afs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

autofs4

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2012-12-17 15:44:47 -08:00

befs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

bfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

btrfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2012-12-18 09:42:05 -08:00

cachefiles

CacheFiles: Implement invalidation

2012-12-20 22:06:08 +00:00

ceph

ceph: fix dentry reference leak in ceph_encode_fh()

2012-12-18 15:02:11 -08:00

cifs

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

coda

fs: push rcu_barrier() from deactivate_locked_super() to filesystems

2012-10-02 21:35:55 -04:00

configfs

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

cramfs

userns: Convert cramfs to use kuid/kgid where appropriate

2012-09-21 03:13:08 -07:00

debugfs

fs/debugsfs: remove unnecessary inode->i_private initialization

2012-11-15 17:46:42 -08:00

devpts

TTY: devpts, document devpts inode operations

2012-10-22 16:50:13 -07:00

dlm

dlm: fix lvb invalidation conditions

2012-11-16 11:20:42 -06:00

ecryptfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

efs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

exofs

exofs: don't leak io_state and pages on read error

2012-12-14 12:17:32 +02:00

exportfs

fs, exportfs: add exportfs_encode_inode_fh() helper

2012-12-17 17:15:27 -08:00

ext2

ext2: fix return values on parse_options() failure

2012-10-09 23:23:53 +02:00

ext3

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

ext4

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

fat

fs/fat: strip "cp" prefix from codepage in display

2012-12-17 17:15:22 -08:00

freevxfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

fscache

FS-Cache: Provide proper invalidation

2012-12-20 22:04:07 +00:00

fuse

Merge branch 'akpm' (Andrew's patch-bomb)

2012-12-17 20:58:12 -08:00

gfs2

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

hfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

hfsplus

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

hostfs

Merge branch 'for-linus-37rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

2012-10-10 11:15:20 +09:00

hpfs

hpfs: drop lock/unlock super

2012-10-09 23:33:38 -04:00

hppfs

pidns: Use task_active_pid_ns where appropriate

2012-11-19 05:59:09 -08:00

hugetlbfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2012-12-13 12:00:02 -08:00

isofs

tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checking

2012-10-09 23:33:55 -04:00

jbd

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2012-12-13 12:00:02 -08:00

jbd2

There are two major features for this merge window. The first is

2012-12-16 17:33:01 -08:00

jffs2

jffs2: hold erase_completion_lock on exit

2012-11-18 11:59:01 +02:00

jfs

jfs: Fix FITRIM argument handling

2012-10-17 09:18:38 -05:00

lockd

lockd: Remove BUG_ON()s from fs/lockd/clntproc.c

2012-11-04 14:43:40 -05:00

logfs

Fix misspellings of "whether" in comments.

2012-11-19 14:31:35 +01:00

minix

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

ncpfs

propagate name change to comments in kernel source

2012-12-06 10:39:54 +01:00

nfs

NFS client updates for Linux 3.8

2012-12-18 09:36:34 -08:00

nfs_common

…

nfsd

UAPI Disintegration 2012-10-09

2012-10-09 18:35:22 -04:00

nilfs2

mm: redefine address_space.assoc_mapping

2012-12-11 17:22:26 -08:00

nls

nls: fix (and rename) mac NLS table files and config options

2012-06-01 19:51:22 -07:00

notify

fs, fanotify: add @mflags field to fanotify output

2012-12-17 17:15:28 -08:00

ntfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

ocfs2

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

omfs

omfs: convert to use beXX_add_cpu()

2012-10-06 03:05:31 +09:00

openpromfs

fs: push rcu_barrier() from deactivate_locked_super() to filesystems

2012-10-02 21:35:55 -04:00

proc

Merge branch 'akpm' (Andrew's patch-bomb)

2012-12-17 20:58:12 -08:00

pstore

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

qnx4

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

qnx6

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

quota

quota: Use the pre-processor to compile out quotactl_cmd_write when !CONFIG_BLOCK

2012-12-13 16:33:24 +01:00

ramfs

don't pass nameidata to ->create()

2012-07-14 16:34:47 +04:00

reiserfs

reiserfs: Move quota calls out of write lock

2012-11-19 21:34:33 +01:00

romfs

fs: push rcu_barrier() from deactivate_locked_super() to filesystems

2012-10-02 21:35:55 -04:00

squashfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

sysfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2012-12-17 15:44:47 -08:00

sysv

sysv: drop lock/unlock super

2012-10-09 23:33:39 -04:00

ubifs

ubifs: use prandom_bytes

2012-12-17 17:15:26 -08:00

udf

udf: remove un-needed variable from inode_getblk

2012-12-13 16:33:23 +01:00

ufs

ufs: drop lock/unlock super

2012-10-09 23:33:39 -04:00

xfs

xfs: fix sparse reported log CRC endian issue

2012-12-03 12:10:59 -06:00

aio.c

aio: now fput() is OK from interrupt context; get rid of manual delayed __fput()

2012-07-22 23:57:59 +04:00

anon_inodes.c

…

attr.c

userns: Allow chown and setgid preservation

2012-11-20 04:17:24 -08:00

bad_inode.c

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

binfmt_aout.c

get rid of pt_regs argument of ->load_binary()

2012-11-28 21:53:38 -05:00

binfmt_elf_fdpic.c

get rid of pt_regs argument of ->load_binary()

2012-11-28 21:53:38 -05:00

binfmt_elf.c

binfmt_elf: fix corner case kfree of uninitialized data

2012-12-17 17:15:19 -08:00

binfmt_em86.c

exec: use -ELOOP for max recursion depth

2012-12-17 17:15:23 -08:00

binfmt_flat.c

get rid of pt_regs argument of ->load_binary()

2012-11-28 21:53:38 -05:00

binfmt_misc.c

exec: use -ELOOP for max recursion depth

2012-12-17 17:15:23 -08:00

binfmt_script.c

exec: use -ELOOP for max recursion depth

2012-12-17 17:15:23 -08:00

binfmt_som.c

get rid of pt_regs argument of ->load_binary()

2012-11-28 21:53:38 -05:00

bio-integrity.c

block: Ues bi_pool for bio_integrity_alloc()

2012-09-09 10:35:38 +02:00

bio.c

vfs: fix: don't increase bio_slab_max if krealloc() fails

2012-10-22 22:00:26 +02:00

block_dev.c

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

buffer.c

fs/buffer.c: remove redundant initialization in alloc_page_buffers()

2012-12-12 17:38:35 -08:00

char_dev.c

char_dev: pin parent kobject

2012-10-22 08:50:37 +03:00

compat_binfmt_elf.c

coredump: extend core dump note section to contain file names of mapped files

2012-10-06 03:05:17 +09:00

compat_ioctl.c

Merge 3.7-rc3 into tty-next

2012-10-29 09:00:57 -07:00

compat.c

vfs: define struct filename and have getname() return it

2012-10-12 20:14:55 -04:00

coredump.c

do_coredump(): get rid of pt_regs argument

2012-11-29 00:01:25 -05:00

coredump.h

coredump: update coredump-related headers

2012-10-06 03:05:15 +09:00

dcache.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

dcookies.c

…

direct-io.c

direct-io: don't read inode->i_blkbits multiple times

2012-11-29 12:38:44 -08:00

drop_caches.c

…

eventfd.c

fs, eventfd: add procfs fdinfo helper

2012-12-17 17:15:27 -08:00

eventpoll.c

fs, epoll: add procfs fdinfo helper

2012-12-17 17:15:27 -08:00

exec.c

Merge branch 'akpm' (Andrew's patch-bomb)

2012-12-17 20:58:12 -08:00

fcntl.c

Fix F_DUPFD_CLOEXEC breakage

2012-10-09 15:52:31 +09:00

fhandle.c

Fix misspellings of "whether" in comments.

2012-11-19 14:31:35 +01:00

fifo.c

fifo: Do not restart open() if it already found a partner

2012-07-16 08:33:14 -07:00

file_table.c

lglock: add DEFINE_STATIC_LGLOCK()

2012-10-10 01:15:44 -04:00

file.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2012-12-12 12:22:13 -08:00

filesystems.c

vfs: define struct filename and have getname() return it

2012-10-12 20:14:55 -04:00

fs_struct.c

kill daemonize()

2012-11-28 21:49:02 -05:00

fs-writeback.c

writeback: fix a typo in comment

2012-12-12 17:38:34 -08:00

generic_acl.c

userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr

2012-09-18 01:01:35 -07:00

inode.c

mm: redefine address_space.assoc_mapping

2012-12-11 17:22:26 -08:00

internal.h

writeback: put unused inodes to LRU after writeback completion

2012-11-26 17:41:24 -08:00

ioctl.c

switch simple cases of fget_light to fdget

2012-09-26 22:20:08 -04:00

ioprio.c

…

Kconfig

ext4: Remove CONFIG_EXT4_FS_XATTR

2012-12-10 16:30:43 -05:00

Kconfig.binfmt

coredump: make core dump functionality optional

2012-10-06 03:05:15 +09:00

libfs.c

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

locks.c

UAPI Disintegration 2012-10-09

2012-10-09 18:35:22 -04:00

Makefile

coredump: make core dump functionality optional

2012-10-06 03:05:15 +09:00

mbcache.c

…

mount.h

proc: Usable inode numbers for the namespace file descriptors.

2012-11-20 04:19:49 -08:00

mpage.c

…

namei.c

lookup_one_len: don't accept . and ..

2012-11-29 22:17:21 -05:00

namespace.c

userns: Require CAP_SYS_ADMIN for most uses of setns.

2012-12-14 16:12:03 -08:00

no-block.c

…

open.c

VFS: Make more complete truncate operation available to CacheFiles

2012-12-20 22:05:41 +00:00

pipe.c

pipe(2) - race-free error recovery

2012-09-26 21:08:52 -04:00

pnode.c

VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors

2012-07-14 16:37:27 +04:00

pnode.h

vfs: Only support slave subtrees across different user namespaces

2012-11-19 05:59:20 -08:00

posix_acl.c

userns: Convert vfs posix_acl support to use kuids and kgids

2012-09-18 01:01:35 -07:00

proc_namespace.c

get rid of magic in proc_namespace.c

2012-07-14 16:32:48 +04:00

read_write.c

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

read_write.h

compat: fs: Generic compat_sys_sendfile implementation

2012-10-02 21:35:55 -04:00

readdir.c

switch simple cases of fget_light to fdget

2012-09-26 22:20:08 -04:00

select.c

switch simple cases of fget_light to fdget

2012-09-26 22:20:08 -04:00

seq_file.c

lseek: the "whence" argument is called "whence"

2012-12-17 17:15:12 -08:00

signalfd.c

fs, epoll: add procfs fdinfo helper

2012-12-17 17:15:27 -08:00

splice.c

writeback: remove nr_pages_dirtied arg from balance_dirty_pages_ratelimited_nr()

2012-12-11 17:22:21 -08:00

stack.c

…

stat.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-10-02 20:25:04 -07:00

statfs.c

switch simple cases of fget_light to fdget

2012-09-26 22:20:08 -04:00

super.c

vfs: drop lock/unlock super

2012-10-09 23:33:39 -04:00

sync.c

switch simple cases of fget_light to fdget

2012-09-26 22:20:08 -04:00

timerfd.c

switch simple cases of fget_light to fdget

2012-09-26 22:20:08 -04:00

utimes.c

switch simple cases of fget_light to fdget

2012-09-26 22:20:08 -04:00

xattr_acl.c

userns: Fix posix_acl_file_xattr_userns gid conversion

2012-10-12 13:16:48 -07:00

xattr.c

fs, xattr: fix bug when removing a name not in xattr list

2012-10-18 12:35:58 -07:00