Al Viro 4804692cb1 UPSTREAM: ecryptfs: fix handling of directory opening ...

(cherry picked from commit 6a480a7842)

First of all, trying to open them r/w is idiocy; it's guaranteed to fail.
Moreover, assigning ->f_pos and assuming that everything will work is
blatantly broken - try that with e.g. tmpfs as underlying layer and watch
the fireworks.  There may be a non-trivial amount of state associated with
current IO position, well beyond the numeric offset.  Using the single
struct file associated with underlying inode is really not a good idea;
we ought to open one for each ecryptfs directory struct file.

Additionally, file_operations both for directories and non-directories are
full of pointless methods; non-directories should *not* have ->iterate(),
directories should not have ->flush(), ->fasync() and ->splice_read().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Change-Id: I4813ce803f270fdd364758ce1dc108b76eab226e
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>

2016-08-12 13:44:30 -07:00

..

9p

9p: ->evict_inode() should kick out ->i_data, not ->i_mapping

2015-12-08 14:51:16 -05:00

adfs

fs/adfs: remove unneeded cast

2015-06-30 19:44:57 -07:00

affs

fs/affs: make root lookup from blkdev logical size

2015-09-10 13:29:01 -07:00

afs

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autofs4

make simple_positive() public

2015-06-23 18:02:01 -04:00

befs

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

2015-07-04 19:36:06 -07:00

bfs

…

btrfs

Merge branch 'for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2015-12-18 15:35:08 -08:00

cachefiles

FS-Cache: Add missing initialization of ret in cachefiles_write_page()

2015-11-16 20:38:43 -05:00

ceph

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2015-11-13 09:24:40 -08:00

cifs

sched/wait: Fix the signal handling fix

2015-12-13 14:30:59 -08:00

coda

fs/coda: fix readlink buffer overflow

2015-09-10 13:29:01 -07:00

configfs

configfs: allow dynamic group creation

2015-11-20 16:17:32 -08:00

cramfs

…

debugfs

debugfs: fix refcount imbalance in start_creating

2015-11-11 02:04:44 -05:00

devpts

devpts: if initialization failed, don't crash when opening /dev/ptmx

2015-06-30 19:44:58 -07:00

dlm

net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA

2015-12-01 15:45:05 -05:00

ecryptfs

UPSTREAM: ecryptfs: fix handling of directory opening

2016-08-12 13:44:30 -07:00

efivarfs

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efs

fs/efs: femove unneeded cast

2015-06-25 17:00:42 -07:00

exofs

osd fs: __r4w_get_page rely on PageUptodate for uptodate

2015-12-12 10:15:34 -08:00

exportfs

…

ext2

ext2, ext4: warn when mounting with dax enabled

2015-11-16 09:43:54 -08:00

ext4

ext4: Add support for FIDTRIM, a best-effort ioctl for deep discard trim

2016-02-16 13:54:19 -08:00

f2fs

Merge branch 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-11-13 18:02:30 -08:00

fat

fat: fix fake_offset handling on error path

2015-11-20 16:17:32 -08:00

freevxfs

freevxfs: Grammar s/an negative/a negative/

2015-08-07 13:59:24 +02:00

fscache

FS-Cache: Handle a write to the page immediately beyond the EOF marker

2015-11-11 02:11:02 -05:00

fuse

fuse: Add support for d_canonical_path

2016-04-25 19:16:11 -07:00

gfs2

Merge branch 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-11-13 18:02:30 -08:00

hfs

hfs: fix B-tree corruption after insertion at position 0

2015-09-10 13:29:01 -07:00

hfsplus

xattr handlers: Pass handler to operations instead of flags

2015-11-13 20:34:32 -05:00

hostfs

fs: create and use seq_show_option for escaping

2015-09-04 16:54:41 -07:00

hpfs

fs/hpfs/namei.c: remove unnecessary new_valid_dev() check

2015-11-09 15:11:24 -08:00

hugetlbfs

mm/hugetlbfs: fix bugs in fallocate hole punch of areas with holes

2015-11-20 16:17:32 -08:00

isofs

…

jbd2

Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2015-12-07 10:25:00 -08:00

jffs2

xattr handlers: Pass handler to operations instead of flags

2015-11-13 20:34:32 -05:00

jfs

fs/jfs: remove unnecessary new_valid_dev() checks

2015-11-09 15:11:24 -08:00

kernfs

kernfs: implement kernfs_path_len()

2015-08-18 15:49:15 -07:00

lockd

Merge tag 'nfsd-4.4' of git://linux-nfs.org/~bfields/linux

2015-11-11 20:11:28 -08:00

logfs

mm, fs: introduce mapping_gfp_constraint()

2015-11-06 17:50:42 -08:00

minix

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

2015-07-04 19:36:06 -07:00

ncpfs

ncpfs: don't allow negative timeouts

2015-11-20 16:17:32 -08:00

nfs

sched/wait: Fix the signal handling fix

2015-12-13 14:30:59 -08:00

nfs_common

lockd: NLM grace period shouldn't block NFSv4 opens

2015-08-13 10:22:06 -04:00

nfsd

nfsd: don't hold ls_mutex across a layout recall

2015-12-16 11:49:58 -05:00

nilfs2

Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-11-11 09:45:24 -08:00

nls

…

notify

vfs: change d_canonical_path to take two paths

2016-04-25 19:15:48 -07:00

ntfs

mm, fs: introduce mapping_gfp_constraint()

2015-11-06 17:50:42 -08:00

ocfs2

ocfs2/dlm: clear migration_pending when migration target goes down

2015-12-29 17:45:49 -08:00

omfs

omfs: fix potential integer overflow in allocator

2015-05-28 18:25:19 -07:00

openpromfs

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overlayfs

ovl: get rid of the dead code left from broken (and disabled) optimizations

2015-12-06 12:31:07 -05:00

proc

FROMLIST: proc: Fix timerslack_ns CAP_SYS_NICE check when adjusting self

2016-08-11 15:20:37 -07:00

pstore

FROMLIST: pstore-ram: fix NULL reference when used with pdata

2016-03-14 13:34:44 -07:00

qnx4

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qnx6

pagemap.h: move dir_pages() over there

2015-06-23 18:02:00 -04:00

quota

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

2015-09-05 20:34:28 -07:00

ramfs

mm, fs: obey gfp_mapping for add_to_page_cache()

2015-10-16 11:42:28 -07:00

reiserfs

Merge branch 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-11-13 18:02:30 -08:00

romfs

…

sdcardfs

ANDROID: sdcardfs: fix itnull.cocci warnings

2016-07-11 19:32:16 +00:00

squashfs

squashfs: xattr simplifications

2015-11-13 20:34:33 -05:00

sysfs

Merge tag 'chrome-platform-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform

2015-11-13 21:53:18 -08:00

sysv

fix sysvfs symlinks

2015-11-23 21:11:08 -05:00

tracefs

tracefs: Fix refcount imbalance in start_creating()

2015-11-04 22:13:45 -05:00

ubifs

Merge branch 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-11-13 18:02:30 -08:00

udf

udf: Don't modify filesystem for read-only mounts

2015-08-20 14:58:35 +02:00

ufs

fix ufs write vs readpage race when writing into a hole

2015-09-09 10:43:12 -07:00

xfs

Merge branch 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-11-13 18:02:30 -08:00

aio.c

mm: move ->mremap() from file_operations to vm_operations_struct

2015-09-04 16:54:41 -07:00

anon_inodes.c

…

attr.c

…

bad_inode.c

…

binfmt_aout.c

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binfmt_elf_fdpic.c

Merge tag 'libnvdimm-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2015-11-10 12:07:22 -08:00

binfmt_elf.c

FROMLIST: mm: ASLR: use get_random_long()

2016-03-16 16:50:34 -07:00

binfmt_em86.c

…

binfmt_flat.c

…

binfmt_misc.c

…

binfmt_script.c

…

block_dev.c

block: detach bdev inode from its wb in __blkdev_put()

2015-12-04 11:02:17 -07:00

buffer.c

vfs: remove unused wrapper block_page_mkwrite()

2015-11-11 02:19:33 -05:00

char_dev.c

fs/char_dev.c: fix incorrect documentation for unregister_chrdev_region

2015-08-05 13:49:35 -07:00

compat_binfmt_elf.c

…

compat_ioctl.c

i2c-dev: Fix typo in ioctl name reference

2015-10-23 23:26:43 +02:00

compat.c

…

coredump.c

coredump: change zap_threads() and zap_process() to use for_each_thread()

2015-11-06 17:50:42 -08:00

dax.c

dax: disable pmd mappings

2015-11-16 23:54:45 -08:00

dcache.c

fs: Export d_absolute_path

2016-03-24 10:32:35 -07:00

dcookies.c

…

direct-io.c

fix the regression from "direct-io: Fix negative return from dio read beyond eof"

2015-12-08 15:02:42 -05:00

drop_caches.c

inode: convert inode_sb_list_lock to per-sb

2015-08-17 18:39:46 -04:00

eventfd.c

…

eventpoll.c

BACKPORT: timer: convert timer_slack_ns from unsigned long to u64

2016-07-01 18:12:06 -07:00

exec.c

vfs: Commit to never having exectuables on proc and sysfs.

2015-07-10 10:39:25 -05:00

fcntl.c

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fhandle.c

vfs: read file_handle only once in handle_to_path

2015-06-02 10:29:07 -07:00

file_table.c

fs, file table: reinit files_stat.max_files after deferred memory initialisation

2015-08-07 04:39:40 +03:00

file.c

vfs: clear remainder of 'full_fds_bits' in dup_fd()

2015-11-05 23:05:32 -08:00

filesystems.c

…

fs_pin.c

…

fs_struct.c

…

fs-writeback.c

fs: block_dump: Don't display inode changes if block_dump < 2

2016-02-16 13:51:11 -08:00

inode.c

fs: fix inode.c kernel-doc warning

2015-11-11 02:18:27 -05:00

internal.h

inode: rename i_wb_list to i_io_list

2015-08-17 23:38:10 -04:00

ioctl.c

…

Kconfig

Included sdcardfs source code for kernel 3.0

2016-03-22 20:27:13 -07:00

Kconfig.binfmt

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libfs.c

fs: Set the size of empty dirs to 0.

2015-08-12 15:28:45 -05:00

locks.c

locks: cleanup posix_lock_inode_wait and flock_lock_inode_wait

2015-10-22 14:57:42 -04:00

Makefile

Included sdcardfs source code for kernel 3.0

2016-03-22 20:27:13 -07:00

mbcache.c

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mount.h

fs: use seq_open_private() for proc_mounts

2015-06-30 19:44:56 -07:00

mpage.c

mm, fs: introduce mapping_gfp_constraint()

2015-11-06 17:50:42 -08:00

namei.c

Don't reset ->total_link_count on nested calls of vfs_path_lookup()

2015-12-06 12:33:02 -05:00

namespace.c

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

2015-09-01 16:13:25 -07:00

no-block.c

…

nsfs.c

fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void

2015-09-11 15:21:34 -07:00

open.c

vfs: Commit to never having exectuables on proc and sysfs.

2015-07-10 10:39:25 -05:00

pipe.c

fs/pipe.c: return error code rather than 0 in pipe_write()

2015-11-11 02:18:26 -05:00

pnode.c

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pnode.h

mnt: Clarify and correct the disconnect logic in umount_tree

2015-07-22 20:33:27 -05:00

posix_acl.c

xattr handlers: Pass handler to operations instead of flags

2015-11-13 20:34:32 -05:00

proc_namespace.c

fs: use seq_open_private() for proc_mounts

2015-06-30 19:44:56 -07:00

read_write.c

…

readdir.c

…

select.c

BACKPORT: timer: convert timer_slack_ns from unsigned long to u64

2016-07-01 18:12:06 -07:00

seq_file.c

fs, seqfile: always allow oom killer

2015-11-06 17:50:42 -08:00

signalfd.c

signalfd: fix information leak in signalfd_copyinfo

2015-08-07 04:39:40 +03:00

splice.c

vfs: Avoid softlockups with sendfile(2)

2015-11-23 21:15:30 -05:00

stack.c

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stat.c

fs/stat.c: remove unnecessary new_valid_dev() check

2015-11-09 15:11:24 -08:00

statfs.c

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super.c

Fix for in kernel emergency remount when loop mounts are used

2016-02-16 13:54:20 -08:00

sync.c

fs/sync.c: make sync_file_range(2) use WB_SYNC_NONE writeback

2015-11-06 17:50:42 -08:00

timerfd.c

…

userfaultfd.c

userfaultfd: Add missing vma_merge parameter

2016-02-16 13:54:16 -08:00

utimes.c

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xattr.c

9p: xattr simplifications

2015-11-13 20:34:33 -05:00