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H A D | balloon.c | fd8b7951 Tue Oct 07 16:00:07 CDT 2014 Boris Ostrovsky <boris.ostrovsky@oracle.com> xen/balloon: Don't continue ballooning when BP_ECANCELED is encountered
Commit 3dcf63677d4e ("xen/balloon: cancel ballooning if adding new memory failed") makes reserve_additional_memory() return BP_ECANCELED when an error is encountered. This error, however, is ignored by the caller (balloon_process()) since it is overwritten by subsequent call to update_schedule(). This results in continuous attempts to add more memory, all of which are likely to fail again.
We should stop trying to schedule next iteration of ballooning when the current one has failed.
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com> fd8b7951 Tue Oct 07 16:00:07 CDT 2014 Boris Ostrovsky <boris.ostrovsky@oracle.com> xen/balloon: Don't continue ballooning when BP_ECANCELED is encountered Commit 3dcf63677d4e ("xen/balloon: cancel ballooning if adding new memory failed") makes reserve_additional_memory() return BP_ECANCELED when an error is encountered. This error, however, is ignored by the caller (balloon_process()) since it is overwritten by subsequent call to update_schedule(). This results in continuous attempts to add more memory, all of which are likely to fail again. We should stop trying to schedule next iteration of ballooning when the current one has failed. Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
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