OpenE2K/qemu-e2k
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qemu-e2k/migration
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Fabiano Rosas 8fa1a21c6e migration/multifd: Fix clearing of mapped-ram zero pages 
When the zero page detection is done in the multifd threads, we need
to iterate the second part of the pages->offset array and clear the
file bitmap for each zero page. The piece of code we merged to do that
is wrong.

The reason this has passed all the tests is because the bitmap is
initialized with zeroes already, so clearing the bits only really has
an effect during live migration and when a data page goes from having
data to no data.

Fixes: 303e6f54f9 ("migration/multifd: Implement zero page transmission on the multifd thread.")
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240321201242.6009-1-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-03-22 12:12:08 -04:00
..
block-dirty-bitmap.c Replace "iothread lock" with "BQL" in comments 2024-01-08 10:45:43 -05:00
block.c migration: Skip only empty block devices 2024-03-13 07:33:41 -04:00
block.h
channel-block.c io: follow coroutine AioContext in qio_channel_yield() 2023-09-07 20:32:11 -05:00
channel-block.h
channel.c migration: Fix migration_channel_read_peek() error path 2024-01-04 09:52:42 +08:00
channel.h
colo-failover.c
colo.c migration: privatize colo interfaces 2024-03-11 16:28:59 -04:00
dirtyrate.c system/cpus: rename qemu_mutex_lock_iothread() to bql_lock() 2024-01-08 10:45:43 -05:00
dirtyrate.h migration/calc-dirty-rate: millisecond-granularity period 2023-10-10 08:03:50 +08:00
exec.c migration: simplify exec migration functions 2024-03-04 07:12:40 +01:00
exec.h migration: convert exec backend to accept MigrateAddress. 2023-11-02 11:35:04 +01:00
fd.c migration: Revert mapped-ram multifd support to fd: URI 2024-03-22 12:12:08 -04:00
fd.h migration: Revert mapped-ram multifd support to fd: URI 2024-03-22 12:12:08 -04:00
file.c migration: Revert mapped-ram multifd support to fd: URI 2024-03-22 12:12:08 -04:00
file.h migration: Fix iocs leaks during file and fd migration 2024-03-14 11:39:08 -04:00
global_state.c migration 1st pull for 9.0 2024-01-05 13:35:25 +00:00
meson.build migration/multifd: Implement zero page transmission on the multifd thread. 2024-03-11 16:57:09 -04:00
migration-hmp-cmds.c migration/multifd: Add new migration option zero-page-detection. 2024-03-11 16:57:05 -04:00
migration-stats.c migration: migration_rate_limit_reset() don't need the QEMUFile 2023-10-31 08:44:33 +01:00
migration-stats.h migration: Remove transferred atomic counter 2023-10-31 08:44:33 +01:00
migration.c migration/postcopy: Fix high frequency sync 2024-03-22 12:12:08 -04:00
migration.h migration: purge MigrationState from public interface 2024-03-11 16:28:59 -04:00
multifd-zero-page.c migration/multifd: Implement zero page transmission on the multifd thread. 2024-03-11 16:57:09 -04:00
multifd-zlib.c * Add missing ERRP_GUARD() statements in functions that need it 2024-03-12 16:55:42 +00:00
multifd-zstd.c migration/multifd: Implement zero page transmission on the multifd thread. 2024-03-11 16:57:09 -04:00
multifd.c migration/multifd: Fix clearing of mapped-ram zero pages 2024-03-22 12:12:08 -04:00
multifd.h migration/multifd: Implement zero page transmission on the multifd thread. 2024-03-11 16:57:09 -04:00
options.c * Add missing ERRP_GUARD() statements in functions that need it 2024-03-12 16:55:42 +00:00
options.h migration/multifd: Add new migration option zero-page-detection. 2024-03-11 16:57:05 -04:00
page_cache.c
page_cache.h
postcopy-ram.c error: Move ERRP_GUARD() to the beginning of the function 2024-03-12 11:45:45 +01:00
postcopy-ram.h migration: remove error from notifier data 2024-02-28 11:31:28 +08:00
qemu-file.c migration: Report error when shutdown fails 2024-03-11 14:41:40 -04:00
qemu-file.h migration/qemu-file: add utility methods for working with seekable channels 2024-03-01 15:42:04 +08:00
ram-compress.c migration: Rename ram_compressed_pages() to compress_ram_pages() 2023-10-30 17:41:55 +01:00
ram-compress.h migration: Rename ram_compressed_pages() to compress_ram_pages() 2023-10-30 17:41:55 +01:00
ram.c migration/multifd: Implement ram_save_target_page_multifd to handle multifd version of MigrationOps::ram_save_target_page. 2024-03-11 16:57:09 -04:00
ram.h migration/multifd: Allow clearing of the file_bmap from multifd 2024-03-11 16:56:52 -04:00
rdma.c migration/rdma: Fix a memory issue for migration 2024-03-11 14:41:40 -04:00
rdma.h migration: convert rdma backend to accept MigrateAddress 2023-11-02 11:35:03 +01:00
savevm.c migration: export migration_is_running 2024-03-11 16:28:59 -04:00
savevm.h migration: Add .save_prepare() handler to struct SaveVMHandlers 2023-09-11 08:34:06 +02:00
socket.c migration/multifd: Drop unnecessary helper to destroy IOC 2024-02-28 11:31:28 +08:00
socket.h migration/multifd: Drop unnecessary helper to destroy IOC 2024-02-28 11:31:28 +08:00
target.c migration: Add migration prefix to functions in target.c 2023-09-11 08:34:06 +02:00
threadinfo.c migration/multifd: Protect accesses to migration_threads 2023-07-26 10:55:56 +02:00
threadinfo.h migration/multifd: Protect accesses to migration_threads 2023-07-26 10:55:56 +02:00
tls.c
tls.h
trace-events migration/multifd: Implement zero page transmission on the multifd thread. 2024-03-11 16:57:09 -04:00
trace.h
vmstate-types.c
vmstate.c migration: Make VMStateDescription.subsections const 2023-12-29 11:17:30 +11:00
xbzrle.c
xbzrle.h
yank_functions.c migration/yank: Use channel features 2024-01-29 11:02:12 +08:00
yank_functions.h