diff options
| author |   Mike Marciniszyn <mike.marciniszyn@qlogic.com> | 2011-10-06 09:33:35 -0700 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2011-10-06 09:33:35 -0700 |
| commit | 53ab1c6498371723c31b18400fab10a902a15a63 (patch) | |
| tree | df710c8c65b897c6738263f976da825d00e406af /drivers/infiniband/hw/qib/qib_file_ops.c | |
| parent | Linux 3.1-rc9 (diff) | |
| download | linux-dev-53ab1c6498371723c31b18400fab10a902a15a63.tar.xz linux-dev-53ab1c6498371723c31b18400fab10a902a15a63.zip | |
IB/qib: Correct nfreectxts for multiple HCAs
The code that was recently introduced to report the number
of free contexts is flawed for multiple HCAs:
/* Return the number of free user ports (contexts) available. */
return scnprintf(buf, PAGE_SIZE, "%u\n", dd->cfgctxts -
dd->first_user_ctxt - (u32)qib_stats.sps_ctxts);
The qib_stats is global to the module, not per HCA, so the code is broken
for multiple HCAs.
This patch adds a qib_devdata field, freectxts, that reflects the free
contexts for this HCA.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Reviewed-by: Ram Vepa <ram.vepa@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_file_ops.c')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_file_ops.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c index 26253039d2c7..77633666f81c 100644 --- a/drivers/infiniband/hw/qib/qib_file_ops.c +++ b/drivers/infiniband/hw/qib/qib_file_ops.c @@ -1284,6 +1284,7 @@ static int setup_ctxt(struct qib_pportdata *ppd, int ctxt, strlcpy(rcd->comm, current->comm, sizeof(rcd->comm)); ctxt_fp(fp) = rcd; qib_stats.sps_ctxts++; + dd->freectxts++; ret = 0; goto bail; @@ -1792,6 +1793,7 @@ static int qib_close(struct inode *in, struct file *fp) if (dd->pageshadow) unlock_expected_tids(rcd); qib_stats.sps_ctxts--; + dd->freectxts--; } mutex_unlock(&qib_mutex); |