diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-07-01 09:56:10 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-07-01 09:56:26 +0200 |
| commit | 087021ba41e9481202103d51d3dd0c4706899a2b (patch) | |
| tree | bf5d67420fd176682a1f8f1e9342ad397c23937a /drivers/scsi/hosts.c | |
| parent | fb9c818873a788c5c01c9868cc6050df96e2c7df (diff) | |
| parent | e83c2b0ff325f52dda1aff3572d0e1516216c54b (diff) | |
Merge branch 'linus' into perfcounters/urgent
Merge reason: this branch was on a .30-ish base before, update
it to an almost-.31-rc2 upstream base to pick up fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/scsi/hosts.c')
| -rw-r--r-- | drivers/scsi/hosts.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 89d41a424b3..5fd2da494d0 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -40,7 +40,7 @@ #include "scsi_logging.h" -static int scsi_host_next_hn; /* host_no for next new host */ +static atomic_t scsi_host_next_hn; /* host_no for next new host */ static void scsi_host_cls_release(struct device *dev) @@ -333,7 +333,11 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize) mutex_init(&shost->scan_mutex); - shost->host_no = scsi_host_next_hn++; /* XXX(hch): still racy */ + /* + * subtract one because we increment first then return, but we need to + * know what the next host number was before increment + */ + shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1; shost->dma_channel = 0xff; /* These three are default values which can be overridden */ |