Haren Myneni 8409ee076d powerpc/vas: Limit open window failure messages in log bufffer ... [ Upstream commit 73b25505ce043b561028e5571d84dc82aa53c2b4 ] 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: 37e6764895 ("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 Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-11-20 11:52:12 +01:00
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vas-api.c	powerpc/vas: Limit open window failure messages in log bufffer	2023-11-20 11:52:12 +01:00