From: Jérôme Glisse <[email protected]>

It can be rather tedious to find why userspace is failing when only
thing kernel report is -ENOMEM. This add an error message so that
user can figure out why they are getting -ENOMEM.

Signed-off-by: Jérôme Glisse <[email protected]>
cc: <[email protected]>
Cc: Haggai Eran <[email protected]>
Cc: Sagi Grimberg <[email protected]>
Cc: Shachar Raindel <[email protected]>
Cc: Doug Ledford <[email protected]>
---
 drivers/infiniband/core/umem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index 38acb3c..a66929e 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -169,6 +169,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, 
unsigned long addr,
        lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
 
        if ((locked > lock_limit) && !capable(CAP_IPC_LOCK)) {
+               pr_err("locked memory quota exhausted (see ulimit -l)\n");
                ret = -ENOMEM;
                goto out;
        }
-- 
1.8.3.1

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