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authorChris Mason <chris.mason@oracle.com>2010-05-11 15:11:11 -0700
committerAndy Grover <andy.grover@oracle.com>2010-09-08 18:15:09 -0700
commit7e3f2952eeb1a0fe2aa9882fd1705a88f9d89b35 (patch)
tree903d89d0d1184bd1f33df2b5036615d1c40cfb06 /net/rds/rds.h
parent38a4e5e61344490f18241333d7b1b368a3a38748 (diff)
downloadop-kernel-dev-7e3f2952eeb1a0fe2aa9882fd1705a88f9d89b35.zip
op-kernel-dev-7e3f2952eeb1a0fe2aa9882fd1705a88f9d89b35.tar.gz
rds: don't let RDS shutdown a connection while senders are present
This is the first in a long line of patches that tries to fix races between RDS connection shutdown and RDS traffic. Here we are maintaining a count of active senders to make sure the connection doesn't go away while they are using it. Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'net/rds/rds.h')
-rw-r--r--net/rds/rds.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 241a085..4ab3d1a 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -93,6 +93,7 @@ struct rds_connection {
spinlock_t c_send_lock; /* protect send ring */
atomic_t c_send_generation;
+ atomic_t c_senders;
struct rds_message *c_xmit_rm;
unsigned long c_xmit_sg;
unsigned int c_xmit_hdr_off;
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