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Fabiano Rosas a71ef5c7f3 migration/multifd: Replace multifd_send_state->pages with client data 
Multifd currently has a simple scheduling mechanism that distributes
work to the various channels by keeping storage space within each
channel and an extra space that is given to the client. Each time the
client fills the space with data and calls into multifd, that space is
given to the next idle channel and a free storage space is taken from
the channel and given to client for the next iteration.

This means we always need (#multifd_channels + 1) memory slots to
operate multifd.

This is fine, except that the presence of this one extra memory slot
doesn't allow different types of payloads to be processed at the same
time in different channels, i.e. the data type of
multifd_send_state->pages needs to be the same as p->pages.

For each new data type different from MultiFDPage_t that is to be
handled, this logic would need to be duplicated by adding new fields
to multifd_send_state, to the channels and to multifd_send_pages().

Fix this situation by moving the extra slot into the client and using
only the generic type MultiFDSendData in the multifd core.

Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-09-03 16:24:35 -03:00
..
block-dirty-bitmap.c migration: Add Error** argument to add_bitmaps_to_list() 2024-04-23 18:36:01 -04:00
channel-block.c io: follow coroutine AioContext in qio_channel_yield() 2023-09-07 20:32:11 -05:00
channel-block.h migration: introduce a QIOChannel impl for BlockDriverState VMState 2022-06-22 19:33:43 +01:00
channel.c migration: Fix migration_channel_read_peek() error path 2024-01-04 09:52:42 +08:00
channel.h migration: check magic value for deciding the mapping of channels 2023-02-06 19:22:57 +01:00
colo-failover.c migration/colo: Improve an x-colo-lost-heartbeat error message 2023-02-23 14:10:17 +01:00
colo-stubs.c migration/colo: make colo_incoming_co() return void 2024-05-22 17:34:31 -03:00
colo.c migration: Rename thread debug names 2024-06-21 09:47:59 -03:00
dirtyrate.c migration: remove unnecessary zlib dependency 2024-05-25 13:28:02 +02:00
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: Deprecate fd: for file migration 2024-05-08 09:20:59 -03:00
fd.h migration: Revert mapped-ram multifd support to fd: URI 2024-03-22 12:12:08 -04:00
file.c migration/multifd: Pass in MultiFDPages_t to file_write_ramblock_iov 2024-09-03 16:24:35 -03:00
file.h migration/multifd: Pass in MultiFDPages_t to file_write_ramblock_iov 2024-09-03 16:24:35 -03:00
global_state.c migration 1st pull for 9.0 2024-01-05 13:35:25 +00:00
meson.build migration/multifd: add uadk compression framework 2024-06-14 14:01:29 -03:00
migration-hmp-cmds.c migration: Add direct-io parameter 2024-06-21 09:47:22 -03:00
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: Add postcopy-recover-setup phase 2024-06-21 09:47:59 -03:00
migration.h migration: Use MigrationStatus instead of int 2024-06-21 09:47:59 -03:00
multifd-qpl.c migration/multifd: Replace p->pages with an union pointer 2024-09-03 16:24:35 -03:00
multifd-uadk.c migration/multifd: Replace p->pages with an union pointer 2024-09-03 16:24:35 -03:00
multifd-zero-page.c migration/multifd: Move pages accounting into multifd_send_zero_page_detect() 2024-09-03 16:24:35 -03:00
multifd-zlib.c migration/multifd: Replace p->pages with an union pointer 2024-09-03 16:24:35 -03:00
multifd-zstd.c migration/multifd: Replace p->pages with an union pointer 2024-09-03 16:24:35 -03:00
multifd.c migration/multifd: Replace multifd_send_state->pages with client data 2024-09-03 16:24:35 -03:00
multifd.h migration/multifd: Replace multifd_send_state->pages with client data 2024-09-03 16:24:35 -03:00
options.c migration: Add direct-io parameter 2024-06-21 09:47:22 -03:00
options.h migration: Add direct-io parameter 2024-06-21 09:47:22 -03:00
page_cache.c migration: Fix cache_init()'s "Failed to allocate" error messages 2021-02-08 11:19:51 +00:00
page_cache.h migration: Clean up signed vs. unsigned XBZRLE cache-size 2021-02-08 11:19:51 +00:00
postcopy-ram.c migration/postcopy: Add postcopy-recover-setup phase 2024-06-21 09:47:59 -03:00
postcopy-ram.h migration/postcopy: Add postcopy-recover-setup phase 2024-06-21 09:47:59 -03:00
qemu-file.c migration: remove unnecessary zlib dependency 2024-05-25 13:28:02 +02:00
qemu-file.h migration: Remove non-multifd compression 2024-05-08 09:20:59 -03:00
ram.c migration/multifd: Replace multifd_send_state->pages with client data 2024-09-03 16:24:35 -03:00
ram.h migration/multifd: solve zero page causing multiple page faults 2024-04-23 18:36:01 -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: delete unused parameter mis 2024-09-03 16:24:33 -03:00
savevm.h migration: Add Error** argument to qemu_savevm_state_setup() 2024-04-23 18:36:01 -04:00
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 migration: Drop unused parameter for migration_tls_client_create() 2023-05-03 11:24:20 +02:00
tls.h migration: Drop unused parameter for migration_tls_client_create() 2023-05-03 11:24:20 +02:00
trace-events migration/multifd: Isolate ram pages packet data 2024-09-03 16:24:35 -03:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vmstate-types.c Move CPU softfloat unions to cpu-float.h 2022-04-06 14:31:43 +02:00
vmstate.c migration: fix a typo 2024-05-22 17:34:40 -03:00
xbzrle.c migration/xbzrle: Use i386 host/cpuinfo.h 2023-05-23 16:51:18 -07:00
xbzrle.h migration/xbzrle: Use i386 host/cpuinfo.h 2023-05-23 16:51:18 -07:00
yank_functions.c migration/yank: Use channel features 2024-01-29 11:02:12 +08:00
yank_functions.h migration: Move the yank unregister of channel_close out 2021-07-26 12:45:03 +01:00