diff options
| author | Haren Myneni <haren@linux.ibm.com> | 2023-10-19 14:50:33 -0700 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-10-20 17:10:03 +1100 |
| commit | 73b25505ce043b561028e5571d84dc82aa53c2b4 (patch) | |
| tree | ef0d490182b2bae34ca65c0d0332acc806557790 /arch/powerpc/platforms/pseries | |
| parent | 3bf983e4e93ce8e6d69e9d63f52a66ec0856672e (diff) | |
powerpc/vas: Limit open window failure messages in log bufffer
The VAS open window call prints error message and returns -EBUSY
after the migration suspend event initiated and until the resume
event completed on the destination system. It can cause the log
buffer filled with these error messages if the user space issues
continuous open window calls. Similar case even for DLPAR CPU
remove event when no credits are available until the credits are
freed or with the other DLPAR CPU add event.
So changes in the patch to use pr_err_ratelimited() instead of
pr_err() to display open window failure and not-available credits
error messages.
Use pr_fmt() and make the corresponding changes to have the
consistencein prefix all pr_*() messages (vas-api.c).
Fixes: 37e6764895ef ("powerpc/pseries/vas: Add VAS migration handler")
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
[mpe: Use "vas-api" as the prefix to match the file name.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231019215033.1335251-1-haren@linux.ibm.com
Diffstat (limited to 'arch/powerpc/platforms/pseries')
| -rw-r--r-- | arch/powerpc/platforms/pseries/vas.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/pseries/vas.c b/arch/powerpc/platforms/pseries/vas.c index e25ac52acf50..b1f25bac280b 100644 --- a/arch/powerpc/platforms/pseries/vas.c +++ b/arch/powerpc/platforms/pseries/vas.c @@ -341,7 +341,7 @@ static struct vas_window *vas_allocate_window(int vas_id, u64 flags, if (atomic_inc_return(&cop_feat_caps->nr_used_credits) > atomic_read(&cop_feat_caps->nr_total_credits)) { - pr_err("Credits are not available to allocate window\n"); + pr_err_ratelimited("Credits are not available to allocate window\n"); rc = -EINVAL; goto out; } @@ -424,7 +424,7 @@ static struct vas_window *vas_allocate_window(int vas_id, u64 flags, put_vas_user_win_ref(&txwin->vas_win.task_ref); rc = -EBUSY; - pr_err("No credit is available to allocate window\n"); + pr_err_ratelimited("No credit is available to allocate window\n"); out_free: /* |