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| author |   Chris Mason <chris.mason@oracle.com> | 2010-05-11 15:11:11 -0700 |
|---|---|---|
| committer |   Andy Grover <andy.grover@oracle.com> | 2010-09-08 18:15:09 -0700 |
| commit | 7e3f2952eeb1a0fe2aa9882fd1705a88f9d89b35 (patch) | |
| tree | 903d89d0d1184bd1f33df2b5036615d1c40cfb06 /net/rds/rds.h | |
| parent | rds: Use RCU for the bind lookup searches (diff) | |
| download | linux-dev-7e3f2952eeb1a0fe2aa9882fd1705a88f9d89b35.tar.xz linux-dev-7e3f2952eeb1a0fe2aa9882fd1705a88f9d89b35.zip | |
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.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/rds/rds.h b/net/rds/rds.h index 241a0859d16e..4ab3d1aa0237 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; |