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| author | Wei Yang | 2019-07-24 03:07:21 +0200 |
|---|---|---|
| committer | Dr. David Alan Gilbert | 2019-08-14 18:33:14 +0200 |
| commit | 810cf2bbd4c5c1417bda8bec49caf0ababc22860 (patch) | |
| tree | 5e1fea316fe52acd81cf3c43ab1f95da17813b81 /include/exec/exec-all.h | |
| parent | migration: extract ram_load_precopy (diff) | |
| download | qemu-810cf2bbd4c5c1417bda8bec49caf0ababc22860.tar.gz qemu-810cf2bbd4c5c1417bda8bec49caf0ababc22860.tar.xz qemu-810cf2bbd4c5c1417bda8bec49caf0ababc22860.zip | |
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>
Diffstat (limited to 'include/exec/exec-all.h')
0 files changed, 0 insertions, 0 deletions