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d544f5d3b1
We are going to support 64 bit write-zeroes requests. Now update the limit variable. It's absolutely safe. The variable is set in some drivers, and used in bdrv_co_do_pwrite_zeroes(). Update also max_write_zeroes variable in bdrv_co_do_pwrite_zeroes(), so that bdrv_co_do_pwrite_zeroes() is now prepared to 64bit requests. The remaining logic including num, offset and bytes variables is already supporting 64bit requests. So the only thing that prevents 64 bit requests is limiting max_write_zeroes variable to INT_MAX in bdrv_co_do_pwrite_zeroes(). We'll drop this limitation after updating all block drivers. Ah, we also have bdrv_check_request32() in bdrv_co_pwritev_part(). It will be modified to do bdrv_check_request() for write-zeroes path. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20210903102807.27127-7-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com> |
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| authz | ||
| block | ||
| chardev | ||
| crypto | ||
| disas | ||
| exec | ||
| fpu | ||
| hw | ||
| io | ||
| libdecnumber | ||
| migration | ||
| monitor | ||
| net | ||
| qapi | ||
| qemu | ||
| qom | ||
| scsi | ||
| semihosting | ||
| standard-headers | ||
| sysemu | ||
| tcg | ||
| ui | ||
| user | ||
| elf.h | ||
| glib-compat.h | ||
| qemu-common.h | ||
| qemu-io.h | ||
| trace-tcg.h | ||