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H A D | postcopy-ram.h | 810cf2bbd4c5c1417bda8bec49caf0ababc22860 Wed Jul 24 01:07:21 UTC 2019 Wei Yang <richardw.yang@linux.intel.com> migration/postcopy: make PostcopyDiscardState a static variable
In postcopy-ram.c, we provide three functions to discard certain RAMBlock range:
* postcopy_discard_send_init() * postcopy_discard_send_range() * postcopy_discard_send_finish()
Currently, we allocate/deallocate PostcopyDiscardState for each RAMBlock on sending discard information to destination. This is not necessary and the same data area could be reused for each RAMBlock.
This patch defines PostcopyDiscardState a static variable. By doing so:
1) avoid memory allocation and deallocation to the system 2) avoid potential failure of memory allocation 3) hide some details for their users
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190724010721.2146-1-richardw.yang@linux.intel.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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H A D | postcopy-ram.c | 810cf2bbd4c5c1417bda8bec49caf0ababc22860 Wed Jul 24 01:07:21 UTC 2019 Wei Yang <richardw.yang@linux.intel.com> migration/postcopy: make PostcopyDiscardState a static variable
In postcopy-ram.c, we provide three functions to discard certain RAMBlock range:
* postcopy_discard_send_init() * postcopy_discard_send_range() * postcopy_discard_send_finish()
Currently, we allocate/deallocate PostcopyDiscardState for each RAMBlock on sending discard information to destination. This is not necessary and the same data area could be reused for each RAMBlock.
This patch defines PostcopyDiscardState a static variable. By doing so:
1) avoid memory allocation and deallocation to the system 2) avoid potential failure of memory allocation 3) hide some details for their users
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190724010721.2146-1-richardw.yang@linux.intel.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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H A D | ram.c | 810cf2bbd4c5c1417bda8bec49caf0ababc22860 Wed Jul 24 01:07:21 UTC 2019 Wei Yang <richardw.yang@linux.intel.com> migration/postcopy: make PostcopyDiscardState a static variable
In postcopy-ram.c, we provide three functions to discard certain RAMBlock range:
* postcopy_discard_send_init() * postcopy_discard_send_range() * postcopy_discard_send_finish()
Currently, we allocate/deallocate PostcopyDiscardState for each RAMBlock on sending discard information to destination. This is not necessary and the same data area could be reused for each RAMBlock.
This patch defines PostcopyDiscardState a static variable. By doing so:
1) avoid memory allocation and deallocation to the system 2) avoid potential failure of memory allocation 3) hide some details for their users
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190724010721.2146-1-richardw.yang@linux.intel.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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