GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-07-23 07:12:09 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

sunrpc: make xprt->swapper an atomic_t

Browse source 
Split xs_swapper into enable/disable functions and eliminate the
"enable" flag.

Currently, it's racy if you have multiple swapon/swapoff operations
running in parallel over the same xprt. Also fix it so that we only
set it to a memalloc socket on a 0->1 transition and only clear it
on a 1->0 transition.

Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Jeff Layton 2015-06-03 16:14:26 -04:00 • committed by Trond Myklebust
parent 3c87ef6efb
commit 8e2281330f
3 changed files with 30 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

4
net/sunrpc/clnt.c
View file

@ -2495,7 +2495,7 @@ retry:
goto retry;
}
ret = xs_swapper(xprt, 1);
ret = xs_swapper_enable(xprt);
xprt_put(xprt);
}
return ret;
@ -2522,7 +2522,7 @@ retry:
goto retry;
}
xs_swapper(xprt, 0);
xs_swapper_disable(xprt);
xprt_put(xprt);
}
}