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Revision bb8bf76f

IDbb8bf76fb1c4afa116a7f11fee559b3cca671a4a

Added by Christoph Hellwig over 10 years ago

block: add discard support

Add a new bdrv_discard method to free blocks in a mapping image, and a new
drive property to set the granularity for these discard. If no discard
granularity support is set discard support is disabled.

Signed-off-by: Christoph Hellwig <>
Signed-off-by: Kevin Wolf <>

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