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Re: [Qemu-block] [PATCH v22 00/30] qcow2: persistent dirty bitmaps


From: Vladimir Sementsov-Ogievskiy
Subject: Re: [Qemu-block] [PATCH v22 00/30] qcow2: persistent dirty bitmaps
Date: Wed, 28 Jun 2017 16:53:49 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1

28.06.2017 16:01, Paolo Bonzini wrote:


On 28/06/2017 14:05, Vladimir Sementsov-Ogievskiy wrote:
Rebase on master, so changes, mostly related to new dirty bitmaps mutex:

10: - asserts now in bdrv_{re,}set_dirty_bitmap_locked functions.
     - also add assert into bdrv_undo_clear_dirty_bitmap (the only change, not 
related to rebase)
     - add mutex lock into bdrv_dirty_bitmap_set_readonly (as it changes bitmap 
list,
       so the lock should be taken)
     - return instead of go-to in qmp_block_dirty_bitmap_clear
     - in dirty-bitmaps.h, move bdrv_dirty_bitmap_set_readonly before block
       "Functions that require manual locking", move
       bdrv_dirty_bitmap_readonly and bdrv_has_readonly_bitmaps into this block
15: - add mutex lock/unlock into bdrv_dirty_bitmap_set_autoload
     - in dirty-bitmaps.h, move bdrv_dirty_bitmap_set_autoload before block
       "Functions that require manual locking", move
       bdrv_dirty_bitmap_get_autoload into this block
17: - add mutex lock/unlock into bdrv_dirty_bitmap_set_persistance
     - in dirty-bitmaps.h, move bdrv_dirty_bitmap_set_persistance before block
       "Functions that require manual locking", move
       bdrv_dirty_bitmap_get_persistance and
       bdrv_has_changed_persistent_bitmaps into this block
18: in dirty-bitmaps.h, move bdrv_dirty_bitmap_next into block
     "Functions that require manual locking". (do not remove r-b, as it is
     just one empty line removed before function declaration)
23: return instead of go-to in qmp_block_dirty_bitmap_add
24: return instead of go-to in qmp_block_dirty_bitmap_add
25: - return instead of go-to
     - remove aio_context_acquire/release calls
     - no aio_context parameter for block_dirty_bitmap_lookup
     - in dirty-bitmaps.h, move bdrv_dirty_bitmap_sha256 into block
         "Functions that require manual locking".
29: - return instead of go-to in qmp_block_dirty_bitmap_remove

All looks good, thanks.  I'll rebase my own fixes on top of these
patches, no need to have you respin them.

Paolo


Thank you! And for thunderbird-work-around too!

--
Best regards,
Vladimir



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