diff options
| author | Joe Eykholt <jeykholt@cisco.com> | 2010-07-21 02:19:37 +0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-07-28 18:05:48 +0400 |
| commit | 42e9041467cf5fd33501b91b27e26807c259c896 (patch) | |
| tree | 41a335a931e151f3fa00f384b5d1fb024421b7d2 /drivers/scsi/libfc/fc_disc.c | |
| parent | 519e5135e2537c9dbc1cbcc0891b0a936ff5dcd2 (diff) | |
| download | linux-42e9041467cf5fd33501b91b27e26807c259c896.tar.xz | |
[SCSI] libfc: convert rport lookup to be RCU safe
To allow LLD to do lookups on rports without grabbing a mutex,
make them RCU-safe. The caller of lport->tt.rport_lookup will
have the choice of holding disc_mutex or the rcu_read_lock().
Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/libfc/fc_disc.c')
| -rw-r--r-- | drivers/scsi/libfc/fc_disc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c index c7985da88099..d0fa9a0ddc8d 100644 --- a/drivers/scsi/libfc/fc_disc.c +++ b/drivers/scsi/libfc/fc_disc.c @@ -63,12 +63,12 @@ static void fc_disc_restart(struct fc_disc *); void fc_disc_stop_rports(struct fc_disc *disc) { struct fc_lport *lport; - struct fc_rport_priv *rdata, *next; + struct fc_rport_priv *rdata; lport = disc->lport; mutex_lock(&disc->disc_mutex); - list_for_each_entry_safe(rdata, next, &disc->rports, peers) + list_for_each_entry_rcu(rdata, &disc->rports, peers) lport->tt.rport_logoff(rdata); mutex_unlock(&disc->disc_mutex); } @@ -292,7 +292,7 @@ static void fc_disc_done(struct fc_disc *disc, enum fc_disc_event event) * Skip ports which were never discovered. These are the dNS port * and ports which were created by PLOGI. */ - list_for_each_entry(rdata, &disc->rports, peers) { + list_for_each_entry_rcu(rdata, &disc->rports, peers) { if (!rdata->disc_id) continue; if (rdata->disc_id == disc->disc_id) |