A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

tcp/dccp: avoid one atomic operation for timewait hashdance

Browse source 
First, rename __inet_twsk_hashdance() to inet_twsk_hashdance()

Then, remove one inet_twsk_put() by setting tw_refcnt to 3 instead
of 4, but adding a fat warning that we do not have the right to access
tw anymore after inet_twsk_hashdance()

Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Eric Dumazet 2017-12-11 21:25:12 -08:00 • committed by David S. Miller
commit ec94c2696f
4 changed files with 23 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

7
net/dccp/minisocks.c
View file

@ -63,9 +63,10 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
*/
local_bh_disable();
inet_twsk_schedule(tw, timeo);
/* Linkage updates. */
__inet_twsk_hashdance(tw, sk, &dccp_hashinfo);
inet_twsk_put(tw);
/* Linkage updates.
* Note that access to tw after this point is illegal.
*/
inet_twsk_hashdance(tw, sk, &dccp_hashinfo);
local_bh_enable();
} else {
/* Sorry, if we're out of memory, just CLOSE this