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POSIX states about dd: If the bs=expr operand is specified and no conversions other than sync, noerror, or notrunc are requested, the data returned from each input block shall be written as a separate output block; if the read returns less than a full block and the sync conversion is not specified, the resulting output block shall be the same size as the input block. If the bs=expr operand is not specified, or a conversion other than sync, noerror, or notrunc is requested, the input shall be processed and collected into full-sized output blocks until the end of the input is reached. Since we aren't using conv=sync, there is no zero-padding, but our use of bs= means that a short read results in a short write. If instead we use ibs= and obs=, then short reads are collected and dd only has to do a single write, which can make dd more efficient. * src/qemu/qemu_monitor.c (qemuMonitorMigrateToFile): Avoid 'dd bs=', since it can cause short writes. |
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| .. | ||
| libvirtd_qemu.aug | ||
| qemu_audit.c | ||
| qemu_audit.h | ||
| qemu_bridge_filter.c | ||
| qemu_bridge_filter.h | ||
| qemu_capabilities.c | ||
| qemu_capabilities.h | ||
| qemu_cgroup.c | ||
| qemu_cgroup.h | ||
| qemu_command.c | ||
| qemu_command.h | ||
| qemu_conf.c | ||
| qemu_conf.h | ||
| qemu_domain.c | ||
| qemu_domain.h | ||
| qemu_driver.c | ||
| qemu_driver.h | ||
| qemu_hostdev.c | ||
| qemu_hostdev.h | ||
| qemu_hotplug.c | ||
| qemu_hotplug.h | ||
| qemu_migration.c | ||
| qemu_migration.h | ||
| qemu_monitor_json.c | ||
| qemu_monitor_json.h | ||
| qemu_monitor_text.c | ||
| qemu_monitor_text.h | ||
| qemu_monitor.c | ||
| qemu_monitor.h | ||
| qemu_process.c | ||
| qemu_process.h | ||
| qemu.conf | ||
| test_libvirtd_qemu.aug | ||
| THREADS.txt | ||