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linux/fs
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Al Viro b4d9d427c6 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>
2016-08-18 18:56:03 +05:30
..
9p
9p: use file_dentry()
2016-08-10 11:49:27 +02:00
adfs
fs/adfs: remove unneeded cast
2015-06-30 19:44:57 -07:00
affs
affs: fix remount failure when there are no options changed
2016-06-07 18:14:32 -07:00
afs
net: Add a struct net parameter to sock_create_kern
2015-05-11 10:50:17 -04:00
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
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-26 17:22:07 -07:00
btrfs
btrfs: account for non-CoW'd blocks in btrfs_abort_transaction
2016-07-27 09:47:33 -07:00
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
File names with trailing period or space need special case conversion
2016-07-27 09:47:39 -07:00
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: Make automount point inodes permanently empty
2016-05-04 14:48:41 -07:00
devpts
devpts: clean up interface to pty drivers
2016-08-16 09:30:49 +02:00
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
2016-08-18 18:56:03 +05:30
efivarfs
efi: Make efivarfs entries immutable by default
2016-03-03 15:07:09 -08:00
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
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
2015-02-22 11:38:41 -05:00
ext2
ext2, ext4: warn when mounting with dax enabled
2015-11-16 09:43:54 -08:00
ext4
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
2016-08-18 12:33:31 +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
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
2016-08-18 12:33:31 +08:00
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
uml: fix hostfs mknod()
2016-03-03 15:07:12 -08:00
hpfs
hpfs: implement the show_options method
2016-06-01 12:15:54 -07:00
hugetlbfs
fs/hugetlbfs/inode.c: fix bugs in hugetlb_vmtruncate_list()
2016-02-25 12:01:22 -08:00
isofs
get_rock_ridge_filename(): handle malformed NM entries
2016-05-18 17:06:54 -07:00
jbd2
jbd2: fix FS corruption possibility in jbd2_journal_destroy() on umount path
2016-04-12 09:08:53 -07:00
jffs2
jffs2: reduce the breakage on recovery from halfway failed rename()
2016-03-16 08:42:58 -07:00
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: fix a braino in OOM handling in ncp_fill_cache()
2016-03-16 08:42:59 -07:00
nfs
NFS: Fix another OPEN_DOWNGRADE bug
2016-07-27 09:47:30 -07:00
nfs_common
lockd: NLM grace period shouldn't block NFSv4 opens
2015-08-13 10:22:06 -04:00
nfsd
nfsd: check permissions when setting ACLs
2016-07-27 09:47:30 -07:00
nilfs2
fs/nilfs2: fix potential underflow in call to crc32_le
2016-08-10 11:49:25 +02:00
nls
…
notify
vfs: change d_canonical_path to take two paths
2016-05-19 12:35:13 +05:30
ntfs
mm, fs: introduce mapping_gfp_constraint()
2015-11-06 17:50:42 -08:00
ocfs2
ocfs2: fix posix_acl_create deadlock
2016-05-18 17:06:44 -07:00
omfs
omfs: fix potential integer overflow in allocator
2015-05-28 18:25:19 -07:00
openpromfs
…
overlayfs
ovl: handle ATTR_KILL*
2016-08-10 11:49:28 +02:00
proc
FROMLIST: proc: Fix timerslack_ns CAP_SYS_NICE check when adjusting self
2016-08-18 18:56:03 +05:30
pstore
FROMLIST: pstore-ram: fix NULL reference when used with pdata
2016-04-07 16:49:59 +05:30
qnx4
…
qnx6
pagemap.h: move dir_pages() over there
2015-06-23 18:02:00 -04:00
quota
quota: Fix possible GPF due to uninitialised pointers
2016-04-12 09:08:56 -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
make new_sync_{read,write}() static
2015-04-11 22:29:40 -04:00
sdcardfs
ANDROID: sdcardfs: fix itnull.cocci warnings
2016-08-18 18:56:03 +05:30
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
UBIFS: Implement ->migratepage()
2016-07-27 09:47:31 -07:00
udf
udf: Check output buffer length when converting name to CS0
2016-02-25 12:01:18 -08:00
ufs
fix ufs write vs readpage race when writing into a hole
2015-09-09 10:43:12 -07:00
xfs
xfs: handle dquot buffer readahead in log recovery correctly
2016-06-07 18:14:38 -07:00
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
don't bother with most of the bad_file_ops methods
2015-02-20 04:03:58 -05:00
binfmt_aout.c
assorted conversions to %p[dD]
2014-11-19 13:01:20 -05:00
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()
2016-04-07 16:49:59 +05:30
binfmt_em86.c
syscalls: implement execveat() system call
2014-12-13 12:42:51 -08:00
binfmt_flat.c
…
binfmt_misc.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-26 17:22:07 -07:00
binfmt_script.c
syscalls: implement execveat() system call
2014-12-13 12:42:51 -08:00
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
vfs: make first argument of dir_context.actor typed
2014-10-31 17:48:54 -04:00
coredump.c
fs/coredump: prevent fsuid=0 dumps into user-controlled directories
2016-04-12 09:08:58 -07:00
dax.c
dax: disable pmd mappings
2015-11-16 23:54:45 -08:00
dcache.c
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
2016-08-18 12:33:31 +08:00
dcookies.c
…
direct-io.c
block: fix use-after-free in dio_bio_complete
2016-03-03 15:07:28 -08:00
drop_caches.c
inode: convert inode_sb_list_lock to per-sb
2015-08-17 18:39:46 -04:00
eventfd.c
eventfd: don't take the spinlock in eventfd_poll
2015-02-17 14:34:52 -08:00
eventpoll.c
BACKPORT: timer: convert timer_slack_ns from unsigned long to u64
2016-07-11 12:43:04 +05:30
exec.c
vfs: Commit to never having exectuables on proc and sysfs.
2015-07-10 10:39:25 -05:00
fcntl.c
vfs: renumber FMODE_NONOTIFY and add to uniqueness check
2015-01-08 15:10:52 -08:00
fhandle.c
fs/coredump: prevent fsuid=0 dumps into user-controlled directories
2016-04-12 09:08:58 -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_pin: Allow for the possibility that m_list or s_list go unused.
2015-04-09 11:39:55 -05:00
fs_struct.c
…
fs-writeback.c
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
2016-04-13 12:02:21 +08:00
inode.c
vfs: fix deadlock in file_remove_privs() on overlayfs
2016-08-10 11:49:30 +02:00
internal.h
inode: rename i_wb_list to i_io_list
2015-08-17 23:38:10 -04:00
ioctl.c
fsioctl.c: make generic_block_fiemap() signal-tolerant
2015-02-10 14:30:30 -08:00
Kconfig
Included sdcardfs source code for kernel 3.0
2016-04-07 16:50:01 +05:30
Kconfig.binfmt
mm: split ET_DYN ASLR from mmap ASLR
2015-04-14 16:49:05 -07:00
libfs.c
fs: Set the size of empty dirs to 0.
2015-08-12 15:28:45 -05:00
locks.c
locks: use file_inode()
2016-08-10 11:49:27 +02:00
Makefile
Included sdcardfs source code for kernel 3.0
2016-04-07 16:50:01 +05:30
mbcache.c
…
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
atomic_open(): fix the handling of create_error
2016-05-18 17:06:51 -07:00
namespace.c
namespace: update event counter when umounting a deleted dentry
2016-08-10 11:49:27 +02:00
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: add vfs_select_inode() helper
2016-05-18 17:06:48 -07:00
pipe.c
pipe: limit the per-user amount of pages allocated in pipes
2016-06-07 18:14:35 -07:00
pnode.c
propogate_mnt: Handle the first propogated copy being a slave
2016-05-11 11:21:19 +02:00
pnode.h
mnt: Clarify and correct the disconnect logic in umount_tree
2015-07-22 20:33:27 -05:00
posix_acl.c
posix_acl: Add set_posix_acl
2016-07-27 09:47:30 -07:00
proc_namespace.c
vfs: show_vfsstat: do not ignore errors from show_devname method
2016-04-12 09:08:55 -07:00
read_write.c
new_sync_write(): discard ->ki_pos unless the return value is positive
2015-04-11 22:29:46 -04:00
readdir.c
vfs: make first argument of dir_context.actor typed
2014-10-31 17:48:54 -04:00
select.c
BACKPORT: timer: convert timer_slack_ns from unsigned long to u64
2016-07-11 12:43:04 +05:30
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
splice: handle zero nr_pages in splice_to_pipe()
2016-04-12 09:08:55 -07:00
stack.c
…
stat.c
fs/stat.c: remove unnecessary new_valid_dev() check
2015-11-09 15:11:24 -08:00
statfs.c
…
super.c
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
2016-03-14 15:32:21 +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
timerfd: Handle relative timers with CONFIG_TIME_LOW_RES proper
2016-02-25 12:01:25 -08:00
userfaultfd.c
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
2016-03-17 12:51:17 +08:00
utimes.c
…
xattr.c
9p: xattr simplifications
2015-11-13 20:34:33 -05:00