Eric Dumazet 35f9c09fe9 tcp: tcp_sendpages() should call tcp_push() once ...

commit 2f533844242 (tcp: allow splice() to build full TSO packets) added
a regression for splice() calls using SPLICE_F_MORE.

We need to call tcp_flush() at the end of the last page processed in
tcp_sendpages(), or else transmits can be deferred and future sends
stall.

Add a new internal flag, MSG_SENDPAGE_NOTLAST, acting like MSG_MORE, but
with different semantic.

For all sendpage() providers, its a transparent change. Only
sock_sendpage() and tcp_sendpages() can differentiate the two different
flags provided by pipe_to_sendpage()

Reported-by: Tom Herbert <therbert@google.com>
Cc: Nandita Dukkipati <nanditad@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: H.K. Jerry Chu <hkchu@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Mahesh Bandewar <maheshb@google.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail>com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2012-04-05 19:04:27 -04:00

..

9p

9p changes for the 3.4 merge window

2012-03-28 09:58:38 -07:00

adfs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

affs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

afs

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

2012-03-21 13:36:41 -07:00

autofs4

Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-03-29 18:12:23 -07:00

befs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

bfs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

btrfs

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

2012-03-30 12:44:29 -07:00

cachefiles

switch touch_atime to struct path

2012-03-20 21:29:41 -04:00

ceph

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

2012-03-28 10:01:29 -07:00

cifs

[CIFS] Update CIFS version number to 1.77

2012-03-27 14:55:13 -05:00

coda

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

configfs

make configfs_pin_fs() return root dentry on success

2012-03-20 21:29:48 -04:00

cramfs

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

2012-03-21 13:36:41 -07:00

debugfs

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

2012-03-21 13:36:41 -07:00

devpts

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

2012-03-21 13:36:41 -07:00

dlm

dlm for 3.4

2012-03-21 13:54:22 -07:00

ecryptfs

ecryptfs: make register_filesystem() the last potential failure exit

2012-03-20 21:29:49 -04:00

efs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

exofs

Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd

2012-03-28 20:04:27 -07:00

exportfs

…

ext2

migrate ext2_fs.h guts to fs/ext2/ext2.h

2012-03-31 16:03:16 -04:00

ext3

ext3: move headers to fs/ext3/

2012-03-31 16:03:16 -04:00

ext4

Revert "ext4: don't release page refs in ext4_end_bio()"

2012-03-29 17:00:56 -07:00

fat

fat: fix bug in enforcing Long File Name length

2012-03-23 16:58:40 -07:00

freevxfs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

fscache

…

fuse

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

2012-03-21 13:36:41 -07:00

gfs2

get rid of pointless includes of ext2_fs.h

2012-03-31 16:03:15 -04:00

hfs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

hfsplus

hfsplus: add an ioctl to bless files

2012-03-20 21:29:53 -04:00

hostfs

Merge branch 'for-linus-3.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

2012-03-27 18:29:53 -07:00

hpfs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

hppfs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

hugetlbfs

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

2012-03-22 09:04:48 -07:00

isofs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

jbd

Power management updates for 3.4

2012-03-21 10:15:51 -07:00

jbd2

Disintegrate and delete asm/system.h

2012-03-28 15:58:21 -07:00

jffs2

MTD merge for 3.4

2012-03-30 17:31:56 -07:00

jfs

jfs: mising cleanup on register_filesystem() failure

2012-03-20 21:29:48 -04:00

lockd

Merge nfs containerization work from Trond's tree

2012-03-26 11:48:54 -04:00

logfs

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

2012-03-21 13:36:41 -07:00

minix

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

2012-03-21 13:36:41 -07:00

ncpfs

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

nfs

NFS client bugfixes for Linux 3.4

2012-03-28 19:02:35 -07:00

nfs_common

…

nfsd

Merge branch 'for-3.4' of git://linux-nfs.org/~bfields/linux

2012-03-29 14:53:25 -07:00

nilfs2

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

2012-03-21 13:36:41 -07:00

nls

…

notify

fs/notify/notification.c: make subsys_initcall function static

2012-03-23 16:58:31 -07:00

ntfs

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

2012-03-21 13:36:41 -07:00

ocfs2

get rid of pointless includes of ext2_fs.h

2012-03-31 16:03:15 -04:00

omfs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

openpromfs

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

proc

Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-03-29 18:12:23 -07:00

pstore

pstore: trim pstore_get_inode()

2012-03-31 16:03:15 -04:00

qnx4

qnx4: new helper - try_extent()

2012-03-20 21:29:52 -04:00

qnx6

fs: initial qnx6fs addition

2012-03-20 21:29:38 -04:00

quota

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2012-03-28 10:00:14 -07:00

ramfs

tidy up after d_make_root() conversion

2012-03-20 21:29:37 -04:00

reiserfs

Disintegrate and delete asm/system.h

2012-03-28 15:58:21 -07:00

romfs

MTD merge for 3.4

2012-03-30 17:31:56 -07:00

squashfs

Add an extra mount time sanity check, plus some code cleanups and bug fixes.

2012-03-28 18:05:54 -07:00

sysfs

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

2012-03-21 13:36:41 -07:00

sysv

switch open-coded instances of d_make_root() to new helper

2012-03-20 21:29:35 -04:00

ubifs

- Improve error messages

2012-03-23 09:27:40 -07:00

udf

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2012-03-28 10:00:14 -07:00

ufs

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

xfs

Disintegrate and delete asm/system.h

2012-03-28 15:58:21 -07:00

aio.c

aio: take final put_ioctx() into callers of io_destroy()

2012-03-31 16:03:15 -04:00

anon_inodes.c

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

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

attr.c

fs: reduce the use of module.h wherever possible

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

bad_inode.c

fs: reduce the use of module.h wherever possible

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

binfmt_aout.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

binfmt_elf_fdpic.c

Add #includes needed to permit the removal of asm/system.h

2012-03-28 18:30:03 +01:00

binfmt_elf.c

Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-03-29 18:12:23 -07:00

binfmt_em86.c

__register_binfmt() made void

2012-03-20 21:29:46 -04:00

binfmt_flat.c

Disintegrate and delete asm/system.h

2012-03-28 15:58:21 -07:00

binfmt_misc.c

magic.h: move some FS magic numbers into magic.h

2012-03-23 16:58:31 -07:00

binfmt_script.c

__register_binfmt() made void

2012-03-20 21:29:46 -04:00

binfmt_som.c

take removal of PF_FORKNOEXEC to flush_old_exec()

2012-03-20 21:29:51 -04:00

bio-integrity.c

fs: remove the second argument of k[un]map_atomic()

2012-03-20 21:48:21 +08:00

bio.c

fs: reduce the use of module.h wherever possible

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

block_dev.c

magic.h: move some FS magic numbers into magic.h

2012-03-23 16:58:31 -07:00

buffer.c

fs: only send IPI to invalidate LRU BH when needed

2012-03-28 17:14:35 -07:00

char_dev.c

…

compat_binfmt_elf.c

…

compat_ioctl.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

compat.c

Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-03-29 18:12:23 -07:00

dcache.c

vfs: fix d_ancestor() case in d_materialize_unique

2012-03-28 09:54:34 -07:00

dcookies.c

fs: reduce the use of module.h wherever possible

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

direct-io.c

Restore direct_io / truncate locking API

2012-02-23 15:56:21 -08:00

drop_caches.c

…

eventfd.c

fs: reduce the use of module.h wherever possible

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

eventpoll.c

Disintegrate and delete asm/system.h

2012-03-28 15:58:21 -07:00

exec.c

Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-03-29 18:12:23 -07:00

fcntl.c

Wrap accesses to the fd_sets in struct fdtable

2012-02-19 10:30:52 -08:00

fhandle.c

…

fifo.c

…

file_table.c

vfs: drop_file_write_access() made static

2012-03-20 21:29:32 -04:00

file.c

Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-03-29 18:12:23 -07:00

filesystems.c

…

fs_struct.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

fs-writeback.c

trivial writeback fixes

2012-03-28 10:07:27 -07:00

generic_acl.c

…

inode.c

trim includes in inode.c

2012-03-20 21:29:51 -04:00

internal.h

…

ioctl.c

fs: reduce the use of module.h wherever possible

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

ioprio.c

block: strip out locking optimization in put_io_context()

2012-02-07 07:51:30 +01:00

Kconfig

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

2012-03-21 13:36:41 -07:00

Kconfig.binfmt

fs: binfmt_elf: create Kconfig variable for PIE randomization

2012-01-10 16:30:51 -08:00

libfs.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

locks.c

…

Makefile

fs: initial qnx6fs addition

2012-03-20 21:29:38 -04:00

mbcache.c

…

mount.h

…

mpage.c

fs: reduce the use of module.h wherever possible

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

namei.c

vfs: fix out-of-date dentry_unhash() comment

2012-03-31 16:03:17 -04:00

namespace.c

…

no-block.c

…

open.c

Wrap accesses to the fd_sets in struct fdtable

2012-02-19 10:30:52 -08:00

pipe.c

magic.h: move some FS magic numbers into magic.h

2012-03-23 16:58:31 -07:00

pnode.c

…

pnode.h

…

posix_acl.c

fs: reduce the use of module.h wherever possible

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

proc_namespace.c

…

read_write.c

fs: reduce the use of module.h wherever possible

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

read_write.h

…

readdir.c

fs: reduce the use of module.h wherever possible

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

select.c

Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-03-29 18:12:23 -07:00

seq_file.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

signalfd.c

epoll: ep_unregister_pollwait() can use the freed pwq->whead

2012-02-24 11:42:50 -08:00

splice.c

tcp: tcp_sendpages() should call tcp_push() once

2012-04-05 19:04:27 -04:00

stack.c

fs: reduce the use of module.h wherever possible

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

stat.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

statfs.c

fs: reduce the use of module.h wherever possible

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

super.c

The following text was taken from the original review request:

2012-03-24 10:24:31 -07:00

sync.c

fs: reduce the use of module.h wherever possible

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

timerfd.c

…

utimes.c

…

xattr_acl.c

fs: reduce the use of module.h wherever possible

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

xattr.c

fs: reduce the use of module.h wherever possible

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