Michel Lespinasse bebeb3d68b mm: introduce mm_populate() for populating new vmas ...

When creating new mappings using the MAP_POPULATE / MAP_LOCKED flags (or
with MCL_FUTURE in effect), we want to populate the pages within the
newly created vmas.  This may take a while as we may have to read pages
from disk, so ideally we want to do this outside of the write-locked
mmap_sem region.

This change introduces mm_populate(), which is used to defer populating
such mappings until after the mmap_sem write lock has been released.
This is implemented as a generalization of the former do_mlock_pages(),
which accomplished the same task but was using during mlock() /
mlockall().

Signed-off-by: Michel Lespinasse <walken@google.com>
Reported-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Rik van Riel <riel@redhat.com>
Tested-by: Andy Lutomirski <luto@amacapital.net>
Cc: Greg Ungerer <gregungerer@westnet.com.au>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2013-02-23 17:50:10 -08:00

..

9p

Merge branch 'akpm' (incoming from Andrew)

2013-02-21 17:38:49 -08:00

adfs

fs/adfs: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:04 -08:00

affs

fs/affs: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:04 -08:00

afs

fs/afs: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:04 -08:00

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

fs/befs: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:04 -08:00

bfs

fs/bfs: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:04 -08:00

btrfs

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

2013-02-21 17:40:58 -08:00

cachefiles

FS-Cache: Mark cancellation of in-progress operation

2012-12-20 22:34:00 +00:00

ceph

fs/ceph: remove depends on CONFIG_EXPERIMENTAL

2013-01-11 11:39:04 -08:00

cifs

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

2013-02-21 17:40:58 -08:00

coda

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

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

configfs

configfs: move the dereference below the NULL test

2013-02-21 17:22:19 -08:00

cramfs

userns: Convert cramfs to use kuid/kgid where appropriate

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

debugfs

Merge 3.9-rc4 into driver-core-next

2013-01-17 19:48:18 -08:00

devpts

TTY: devpts, document devpts inode operations

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

dlm

dlm for 3.9

2013-02-21 09:25:23 -08:00

ecryptfs

fs/ecryptfs: remove depends on CONFIG_EXPERIMENTAL

2013-01-11 11:39:04 -08:00

efs

fs/efs: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:05 -08:00

exofs

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

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

exportfs

Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux

2012-12-20 14:04:11 -08:00

ext2

ext2: fix return values on parse_options() failure

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

ext3

block: optionally snapshot page contents to provide stable pages during write

2013-02-21 17:22:20 -08:00

ext4

mm: only enforce stable page writes if the backing device requires it

2013-02-21 17:22:19 -08:00

f2fs

f2fs: use _safe() version of list_for_each

2013-01-22 10:49:00 +09:00

fat

fat: fix incorrect function comment

2012-12-20 17:40:20 -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: Clear remaining page count on retrieval cancellation

2012-12-20 22:35:15 +00:00

fuse

fuse: allow control of adaptive readdirplus use

2013-02-07 14:25:44 +01:00

gfs2

mm: only enforce stable page writes if the backing device requires it

2013-02-21 17:22:19 -08:00

hfs

fs/hfs: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:05 -08:00

hfsplus

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

2012-12-20 20:00:43 -08:00

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

Merge branch 'master' into for-next

2013-01-29 10:48:30 +01:00

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

jbd: don't wake kjournald unnecessarily

2013-01-14 22:50:45 +01:00

jbd2

Various bug fixes for ext4. Perhaps the most serious bug fixed is one

2013-01-02 09:57:34 -08:00

jffs2

fs/jffs2: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:05 -08:00

jfs

Merge branch 'master' into for-next

2013-01-29 10:48:30 +01:00

lockd

NLM: Ensure that we resend all pending blocking locks after a reclaim

2013-02-19 12:18:27 -05:00

logfs

fs/logfs: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:05 -08:00

minix

minix: drop vmtruncate

2012-12-20 18:40:53 -05:00

ncpfs

ncpfs: drop vmtruncate

2012-12-20 18:40:54 -05:00

nfs

umount oops when remove blocklayoutdriver first

2013-02-17 15:40:15 -05:00

nfs_common

…

nfsd

fs/nfsd: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:05 -08:00

nilfs2

Merge branch 'akpm' (incoming from Andrew)

2013-02-21 17:38:49 -08:00

nls

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

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

notify

inotify: remove broken mask checks causing unmount to be EINVAL

2013-02-21 17:22:16 -08:00

ntfs

ntfs: drop vmtruncate

2012-12-20 18:40:55 -05:00

ocfs2

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

2013-02-21 17:40:58 -08:00

omfs

omfs: drop vmtruncate

2012-12-20 14:00:01 -05:00

openpromfs

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

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

proc

tty/serial patches for 3.9-rc1

2013-02-21 13:41:04 -08:00

pstore

A few fixes to reduce places where pstore might hang

2013-02-21 09:38:18 -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

treewide: Fix typo in various drivers

2013-01-09 11:43:32 +01:00

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: drop vmtruncate

2012-12-20 14:00:01 -05:00

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

Driver core patches for 3.9-rc1

2013-02-21 12:05:51 -08:00

sysv

sysv: drop vmtruncate

2012-12-20 14:00:01 -05:00

ubifs

ubifs: wait for page writeback to provide stable pages

2013-02-21 17:22:20 -08:00

udf

UDF: Fix a null pointer dereference in udf_sb_free_partitions

2013-01-14 22:53:47 +01:00

ufs

fs/ufs: remove depends on CONFIG_EXPERIMENTAL

2013-01-21 14:39:06 -08:00

xfs

Driver core patches for 3.9-rc1

2013-02-21 12:05:51 -08:00

aio.c

mm: introduce mm_populate() for populating new vmas

2013-02-23 17:50:10 -08:00

anon_inodes.c

anon_inodes: move allocation of anon_inode into ->mount()

2012-03-20 21:29:45 -04:00

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

cputime: Use accessors to read task cputime stats

2013-01-27 19:23:31 +01:00

binfmt_elf.c

binfmt_elf: remove unused argument in fill_elf_header

2013-02-21 17:22:26 -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: do not leave bprm->interp on stack

2012-12-20 17:40:19 -08:00

binfmt_script.c

exec: do not leave bprm->interp on stack

2012-12-20 17:40:19 -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

fs/block_dev.c: page cache wrongly left invalidated after revalidate_disk()

2013-02-21 17:22:16 -08:00

buffer.c

mm: only enforce stable page writes if the backing device requires it

2013-02-21 17:22:19 -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

vfs: d_obtain_alias() needs to use "/" as default name.

2012-12-20 18:49:10 -05:00

dcookies.c

fs: reduce the use of module.h wherever possible

2012-02-28 19:31:58 -05:00

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

epoll: prevent missed events on EPOLL_CTL_MOD

2013-01-02 09:16:43 -08:00

exec.c

fs/exec.c: work around icc miscompilation

2013-01-11 14:54:55 -08:00

fcntl.c

Fix F_DUPFD_CLOEXEC breakage

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

fhandle.c

Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux

2012-12-20 14:04:11 -08:00

fifo.c

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

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

file_table.c

fs: Fix imbalance in freeze protection in mark_files_ro()

2012-12-20 13:57:36 -05:00

file.c

misc: remove __dev* attributes.

2013-01-03 15:57:16 -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

Merge branch 'for-3.5/core' of git://git.kernel.dk/linux-block

2012-05-30 08:52:42 -07:00

Kconfig

fuse: Move CUSE Kconfig entry from fs/Kconfig into fs/fuse/Kconfig

2013-01-17 13:08:45 +01:00

Kconfig.binfmt

coredump: make core dump functionality optional

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

libfs.c

vfs: drop vmtruncate

2012-12-20 18:46:29 -05:00

locks.c

UAPI Disintegration 2012-10-09

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

Makefile

f2fs: update Kconfig and Makefile

2012-12-11 13:43:42 +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

fs: reduce the use of module.h wherever possible

2012-02-28 19:31:58 -05:00

namei.c

vfs: fix renameat to retry on ESTALE errors

2012-12-20 18:50:05 -05:00

namespace.c

vfs, freeze: use ACCESS_ONCE() to guard access to ->mnt_flags

2012-12-20 13:36:18 -05:00

no-block.c

…

open.c

vfs: make fchownat retry once on ESTALE errors

2012-12-20 18:50:07 -05:00

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

sendfile: allows bypassing of notifier events

2012-12-20 17:40:21 -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

sched/rt: Move rt specific bits into new header file

2013-02-07 20:51:08 +01:00

seq_file.c

seq_file: fix new kernel-doc warnings

2013-01-10 14:35:24 -08:00

signalfd.c

fs, epoll: add procfs fdinfo helper

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

splice.c

tcp: fix MSG_SENDPAGE_NOTLAST logic

2013-01-06 20:58:13 -08:00

stack.c

fs: reduce the use of module.h wherever possible

2012-02-28 19:31:58 -05:00

stat.c

vfs: fix readlinkat to retry on ESTALE

2012-12-20 18:50:01 -05:00

statfs.c

vfs: fix user_statfs to retry once on ESTALE errors

2012-12-20 18:50:07 -05:00

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

vfs: allow utimensat() calls to retry once on an ESTALE error

2012-12-20 18:50:08 -05:00

xattr_acl.c

userns: Fix posix_acl_file_xattr_userns gid conversion

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

xattr.c

vfs: make lremovexattr retry once on ESTALE error

2012-12-20 18:50:11 -05:00