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| author | Eric Dumazet <[email protected]> | 2012-04-05 03:05:35 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2012-04-05 23:04:27 +0000 |
| commit | 35f9c09fe9c72eb8ca2b8e89a593e1c151f28fc2 (patch) | |
| tree | 6e57508d6633c47b8846cfdbaefc33e6e0128a47 /lib/mpi/mpi-inline.h | |
| parent | ipv6: fix array index in ip6_mc_add_src() (diff) | |
| download | kernel-35f9c09fe9c72eb8ca2b8e89a593e1c151f28fc2.tar.gz kernel-35f9c09fe9c72eb8ca2b8e89a593e1c151f28fc2.zip | |
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 <[email protected]>
Cc: Nandita Dukkipati <[email protected]>
Cc: Neal Cardwell <[email protected]>
Cc: Tom Herbert <[email protected]>
Cc: Yuchung Cheng <[email protected]>
Cc: H.K. Jerry Chu <[email protected]>
Cc: Maciej Żenczykowski <[email protected]>
Cc: Mahesh Bandewar <[email protected]>
Cc: Ilpo Järvinen <[email protected]>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail>com>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-inline.h')
0 files changed, 0 insertions, 0 deletions