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Mike Rapoport cac673292b userfaultfd: shmem: allow registration of shared memory ranges 
Expand the userfaultfd_register/unregister routines to allow shared
memory VMAs.

Currently, there is no UFFDIO_ZEROPAGE and write-protection support for
shared memory VMAs, which is reflected in ioctl methods supported by
uffdio_register.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Mike Rapoport <[email protected]>
Signed-off-by: Andrea Arcangeli <[email protected]>
Cc: "Dr. David Alan Gilbert" <[email protected]>
Cc: Hillf Danton <[email protected]>
Cc: Michael Rapoport <[email protected]>
Cc: Mike Kravetz <[email protected]>
Cc: Pavel Emelyanov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
2017-02-22 16:41:28 -08:00
..
9p
9p: fix a potential acl leak
2017-02-22 16:41:27 -08:00
adfs
…
affs
vfs: remove ".readlink = generic_readlink" assignments
2016-12-09 16:45:04 +01:00
afs
afs: Use core kernel UUID generation
2017-02-10 16:34:17 +00:00
autofs4
Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2016-12-17 19:16:12 -08:00
befs
befs: add NFS export support
2016-12-22 11:25:24 +00:00
bfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
btrfs
Merge branch 'for-4.11/next' into for-4.11/linus-merge
2017-02-17 14:08:19 -07:00
cachefiles
…
ceph
ceph: fix bad endianness handling in parse_reply_info_extra
2017-01-18 17:58:45 +01:00
cifs
CIFS: Allow to switch on encryption with seal mount option
2017-02-01 16:46:37 -06:00
coda
vfs: remove ".readlink = generic_readlink" assignments
2016-12-09 16:45:04 +01:00
configfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
cramfs
…
crypto
fscrypt: properly declare on-stack completion
2017-02-06 23:45:28 -05:00
debugfs
debugfs: add debugfs_lookup()
2017-02-02 10:20:16 -07:00
devpts
…
dlm
ktime: Get rid of ktime_equal()
2016-12-25 17:21:23 +01:00
ecryptfs
vfs: remove ".readlink = generic_readlink" assignments
2016-12-09 16:45:04 +01:00
efivarfs
…
efs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
exofs
locking/atomic, kref: Add kref_read()
2017-01-14 11:37:18 +01:00
exportfs
…
ext2
dax: fix build warnings with FS_DAX and !FS_IOMAP
2017-01-24 16:26:14 -08:00
ext4
mm, dax: change pmd_fault() to take only vmf parameter
2017-02-22 16:41:26 -08:00
f2fs
Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt
2017-02-20 18:22:31 -08:00
fat
…
freevxfs
…
fscache
fscache: Fix dead object requeue
2017-01-31 13:23:09 -05:00
fuse
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-02-20 13:23:30 -08:00
gfs2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-02-22 10:15:09 -08:00
hfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
hfsplus
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
hostfs
vfs: remove ".readlink = generic_readlink" assignments
2016-12-09 16:45:04 +01:00
hpfs
…
hugetlbfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
isofs
Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block
2016-12-13 10:19:16 -08:00
jbd2
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2017-02-20 18:24:39 -08:00
jffs2
vfs: remove ".readlink = generic_readlink" assignments
2016-12-09 16:45:04 +01:00
jfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
kernfs
kernfs: handle null pointers while printing node name and path
2017-02-10 16:02:26 +01:00
lockd
netns: make struct pernet_operations::id unsigned int
2016-11-18 10:59:15 -05:00
minix
vfs: remove ".readlink = generic_readlink" assignments
2016-12-09 16:45:04 +01:00
ncpfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
nfs
pNFS: Fix a reference leak in _pnfs_return_layout
2017-01-26 15:50:41 -05:00
nfs_common
netns: make struct pernet_operations::id unsigned int
2016-11-18 10:59:15 -05:00
nfsd
Merge tag 'driver-core-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2017-02-22 11:44:32 -08:00
nilfs2
block: Use pointer to backing_dev_info from request_queue
2017-02-02 08:20:48 -07:00
nls
…
notify
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2017-02-21 07:44:03 -08:00
ntfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
ocfs2
ocfs2: fix deadlock issue when taking inode lock at vfs entry points
2017-02-22 16:41:27 -08:00
omfs
…
openpromfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
orangefs
Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2016-12-17 19:16:12 -08:00
overlayfs
ovl: fix possible use after free on redirect dir lookup
2017-01-18 15:19:54 +01:00
proc
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2017-02-21 12:49:56 -08:00
pstore
pstore: Check for prz allocation in walker
2017-02-13 10:25:52 -08:00
qnx4
…
qnx6
…
quota
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2016-12-19 08:23:53 -08:00
ramfs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
reiserfs
Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2016-12-17 19:16:12 -08:00
romfs
romfs: use different way to generate fsid for BLOCK or MTD
2017-01-24 16:26:14 -08:00
squashfs
Merge uncontroversial parts of branch 'readlink' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2016-12-17 19:16:12 -08:00
sysfs
…
sysv
vfs: remove ".readlink = generic_readlink" assignments
2016-12-09 16:45:04 +01:00
tracefs
…
ubifs
Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt
2017-02-20 18:22:31 -08:00
udf
udf: simplify udf_ioctl()
2017-02-03 16:24:18 +01:00
ufs
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
xfs
mm, dax: change pmd_fault() to take only vmf parameter
2017-02-22 16:41:26 -08:00
aio.c
aio: fix lock dep warning
2017-01-14 19:31:40 -05:00
anon_inodes.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
attr.c
…
bad_inode.c
bad_inode: add missing i_op initializers
2016-12-09 11:57:43 +01:00
binfmt_aout.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
binfmt_elf_fdpic.c
fs/binfmt: Convert obsolete cputime type to nsecs
2017-02-01 09:13:51 +01:00
binfmt_elf.c
fs/binfmt: Convert obsolete cputime type to nsecs
2017-02-01 09:13:51 +01:00
binfmt_em86.c
…
binfmt_flat.c
…
binfmt_misc.c
…
binfmt_script.c
…
block_dev.c
Merge branch 'for-4.11/next' into for-4.11/linus-merge
2017-02-17 14:08:19 -07:00
buffer.c
clean_bdev_aliases: Prevent cleaning blocks that are not in block range
2017-01-02 09:35:14 -07:00
char_dev.c
…
compat_binfmt_elf.c
fs/binfmt: Convert obsolete cputime type to nsecs
2017-02-01 09:13:51 +01:00
compat_ioctl.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
compat.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
coredump.c
coredump: Ensure proper size of sparse core files
2017-01-14 19:32:40 -05:00
dax.c
mm, dax: change pmd_fault() to take only vmf parameter
2017-02-22 16:41:26 -08:00
dcache.c
mnt: Protect the mountpoint hashtable with mount_lock
2017-01-10 13:34:43 +13:00
dcookies.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
direct-io.c
do_direct_IO: Use inode->i_blkbits to compute block count to be cleaned
2017-01-10 13:29:54 -07:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
exec.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
fcntl.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
fhandle.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
file_table.c
constify alloc_file()
2016-12-05 19:01:16 -05:00
file.c
…
filesystems.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
fs_pin.c
…
fs_struct.c
…
fs-writeback.c
fs/fs-writeback.c: remove redundant if check
2016-12-12 18:55:08 -08:00
inode.c
…
internal.h
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-12-17 18:44:00 -08:00
ioctl.c
vfs: call vfs_clone_file_range() under freeze protection
2016-12-16 11:02:54 +01:00
iomap.c
fs: break out of iomap_file_buffered_write on fatal signals
2017-02-03 14:13:19 -08:00
Kconfig
dax: fix build warnings with FS_DAX and !FS_IOMAP
2017-01-24 16:26:14 -08:00
Kconfig.binfmt
docs: fix locations of several documents that got moved
2016-10-24 08:12:35 -02:00
libfs.c
libfs: Modify mount_pseudo_xattr to be clear it is not a userspace mount
2017-01-10 13:34:55 +13:00
locks.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
Makefile
logfs: remove from tree
2016-12-14 23:48:11 -05:00
mbcache.c
mbcache: document that "find" functions only return reusable entries
2016-12-03 15:55:01 -05:00
mount.h
vfs: add path_is_mountpoint() helper
2016-12-03 20:51:35 -05:00
mpage.c
fs: Add helper to clean bdev aliases under a bh and use it
2016-11-04 14:34:47 -06:00
namei.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
namespace.c
mnt: Protect the mountpoint hashtable with mount_lock
2017-01-10 13:34:43 +13:00
no-block.c
…
nsfs.c
net: add an ioctl to get a socket network namespace
2016-10-31 10:56:36 -04:00
open.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
pipe.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
pnode.c
reorganize do_make_slave()
2016-12-16 16:30:49 -05:00
pnode.h
…
posix_acl.c
tmpfs: clear S_ISGID when setting posix ACLs
2017-01-10 01:29:48 -05:00
proc_namespace.c
…
read_write.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
readdir.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
select.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
seq_file.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
signalfd.c
…
splice.c
vfs: fix uninitialized flags in splice_to_pipe()
2017-02-16 09:09:02 -08:00
stack.c
…
stat.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
statfs.c
vfs: misc struct path constification
2016-12-05 19:03:49 -05:00
super.c
block: Use pointer to backing_dev_info from request_queue
2017-02-02 08:20:48 -07:00
sync.c
…
timerfd.c
timerfd: Protect the might cancel mechanism proper
2017-02-10 11:15:09 +01:00
userfaultfd.c
userfaultfd: shmem: allow registration of shared memory ranges
2017-02-22 16:41:28 -08:00
utimes.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
xattr.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00