* [PATCH 1/5] migration: All this fields are unsigned
2021-12-16 9:13 [PATCH 0/5] migration: misc cleanups Juan Quintela
@ 2021-12-16 9:13 ` Juan Quintela
2021-12-16 9:26 ` Philippe Mathieu-Daudé
2021-12-16 9:13 ` [PATCH 2/5] migration: We only need last_stage in two places Juan Quintela
` (3 subsequent siblings)
4 siblings, 1 reply; 13+ messages in thread
From: Juan Quintela @ 2021-12-16 9:13 UTC (permalink / raw)
To: qemu-devel; +Cc: Leonardo Bras, Dr. David Alan Gilbert, Peter Xu, Juan Quintela
So printing it as %d is wrong. Notice that for the channel id, that
is an uint8_t, but I changed it anyways for consistency.
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
migration/multifd-zlib.c | 20 ++++++++++----------
migration/multifd-zstd.c | 24 ++++++++++++------------
migration/multifd.c | 16 ++++++++--------
migration/trace-events | 26 +++++++++++++-------------
4 files changed, 43 insertions(+), 43 deletions(-)
diff --git a/migration/multifd-zlib.c b/migration/multifd-zlib.c
index da6201704c..9f6ebf1076 100644
--- a/migration/multifd-zlib.c
+++ b/migration/multifd-zlib.c
@@ -51,7 +51,7 @@ static int zlib_send_setup(MultiFDSendParams *p, Error **errp)
zs->opaque = Z_NULL;
if (deflateInit(zs, migrate_multifd_zlib_level()) != Z_OK) {
g_free(z);
- error_setg(errp, "multifd %d: deflate init failed", p->id);
+ error_setg(errp, "multifd %u: deflate init failed", p->id);
return -1;
}
/* To be safe, we reserve twice the size of the packet */
@@ -60,7 +60,7 @@ static int zlib_send_setup(MultiFDSendParams *p, Error **errp)
if (!z->zbuff) {
deflateEnd(&z->zs);
g_free(z);
- error_setg(errp, "multifd %d: out of memory for zbuff", p->id);
+ error_setg(errp, "multifd %u: out of memory for zbuff", p->id);
return -1;
}
p->data = z;
@@ -132,12 +132,12 @@ static int zlib_send_prepare(MultiFDSendParams *p, Error **errp)
ret = deflate(zs, flush);
} while (ret == Z_OK && zs->avail_in && zs->avail_out);
if (ret == Z_OK && zs->avail_in) {
- error_setg(errp, "multifd %d: deflate failed to compress all input",
+ error_setg(errp, "multifd %u: deflate failed to compress all input",
p->id);
return -1;
}
if (ret != Z_OK) {
- error_setg(errp, "multifd %d: deflate returned %d instead of Z_OK",
+ error_setg(errp, "multifd %u: deflate returned %d instead of Z_OK",
p->id, ret);
return -1;
}
@@ -190,7 +190,7 @@ static int zlib_recv_setup(MultiFDRecvParams *p, Error **errp)
zs->avail_in = 0;
zs->next_in = Z_NULL;
if (inflateInit(zs) != Z_OK) {
- error_setg(errp, "multifd %d: inflate init failed", p->id);
+ error_setg(errp, "multifd %u: inflate init failed", p->id);
return -1;
}
/* To be safe, we reserve twice the size of the packet */
@@ -198,7 +198,7 @@ static int zlib_recv_setup(MultiFDRecvParams *p, Error **errp)
z->zbuff = g_try_malloc(z->zbuff_len);
if (!z->zbuff) {
inflateEnd(zs);
- error_setg(errp, "multifd %d: out of memory for zbuff", p->id);
+ error_setg(errp, "multifd %u: out of memory for zbuff", p->id);
return -1;
}
return 0;
@@ -247,7 +247,7 @@ static int zlib_recv_pages(MultiFDRecvParams *p, Error **errp)
int i;
if (flags != MULTIFD_FLAG_ZLIB) {
- error_setg(errp, "multifd %d: flags received %x flags expected %x",
+ error_setg(errp, "multifd %u: flags received %x flags expected %x",
p->id, flags, MULTIFD_FLAG_ZLIB);
return -1;
}
@@ -284,19 +284,19 @@ static int zlib_recv_pages(MultiFDRecvParams *p, Error **errp)
} while (ret == Z_OK && zs->avail_in
&& (zs->total_out - start) < page_size);
if (ret == Z_OK && (zs->total_out - start) < page_size) {
- error_setg(errp, "multifd %d: inflate generated too few output",
+ error_setg(errp, "multifd %u: inflate generated too few output",
p->id);
return -1;
}
if (ret != Z_OK) {
- error_setg(errp, "multifd %d: inflate returned %d instead of Z_OK",
+ error_setg(errp, "multifd %u: inflate returned %d instead of Z_OK",
p->id, ret);
return -1;
}
}
out_size = zs->total_out - out_size;
if (out_size != expected_size) {
- error_setg(errp, "multifd %d: packet size received %d size expected %d",
+ error_setg(errp, "multifd %u: packet size received %u size expected %u",
p->id, out_size, expected_size);
return -1;
}
diff --git a/migration/multifd-zstd.c b/migration/multifd-zstd.c
index 2d5b61106c..cc4e991724 100644
--- a/migration/multifd-zstd.c
+++ b/migration/multifd-zstd.c
@@ -55,7 +55,7 @@ static int zstd_send_setup(MultiFDSendParams *p, Error **errp)
z->zcs = ZSTD_createCStream();
if (!z->zcs) {
g_free(z);
- error_setg(errp, "multifd %d: zstd createCStream failed", p->id);
+ error_setg(errp, "multifd %u: zstd createCStream failed", p->id);
return -1;
}
@@ -63,7 +63,7 @@ static int zstd_send_setup(MultiFDSendParams *p, Error **errp)
if (ZSTD_isError(res)) {
ZSTD_freeCStream(z->zcs);
g_free(z);
- error_setg(errp, "multifd %d: initCStream failed with error %s",
+ error_setg(errp, "multifd %u: initCStream failed with error %s",
p->id, ZSTD_getErrorName(res));
return -1;
}
@@ -73,7 +73,7 @@ static int zstd_send_setup(MultiFDSendParams *p, Error **errp)
if (!z->zbuff) {
ZSTD_freeCStream(z->zcs);
g_free(z);
- error_setg(errp, "multifd %d: out of memory for zbuff", p->id);
+ error_setg(errp, "multifd %u: out of memory for zbuff", p->id);
return -1;
}
return 0;
@@ -144,12 +144,12 @@ static int zstd_send_prepare(MultiFDSendParams *p, Error **errp)
} while (ret > 0 && (z->in.size - z->in.pos > 0)
&& (z->out.size - z->out.pos > 0));
if (ret > 0 && (z->in.size - z->in.pos > 0)) {
- error_setg(errp, "multifd %d: compressStream buffer too small",
+ error_setg(errp, "multifd %u: compressStream buffer too small",
p->id);
return -1;
}
if (ZSTD_isError(ret)) {
- error_setg(errp, "multifd %d: compressStream error %s",
+ error_setg(errp, "multifd %u: compressStream error %s",
p->id, ZSTD_getErrorName(ret));
return -1;
}
@@ -198,7 +198,7 @@ static int zstd_recv_setup(MultiFDRecvParams *p, Error **errp)
z->zds = ZSTD_createDStream();
if (!z->zds) {
g_free(z);
- error_setg(errp, "multifd %d: zstd createDStream failed", p->id);
+ error_setg(errp, "multifd %u: zstd createDStream failed", p->id);
return -1;
}
@@ -206,7 +206,7 @@ static int zstd_recv_setup(MultiFDRecvParams *p, Error **errp)
if (ZSTD_isError(ret)) {
ZSTD_freeDStream(z->zds);
g_free(z);
- error_setg(errp, "multifd %d: initDStream failed with error %s",
+ error_setg(errp, "multifd %u: initDStream failed with error %s",
p->id, ZSTD_getErrorName(ret));
return -1;
}
@@ -217,7 +217,7 @@ static int zstd_recv_setup(MultiFDRecvParams *p, Error **errp)
if (!z->zbuff) {
ZSTD_freeDStream(z->zds);
g_free(z);
- error_setg(errp, "multifd %d: out of memory for zbuff", p->id);
+ error_setg(errp, "multifd %u: out of memory for zbuff", p->id);
return -1;
}
return 0;
@@ -265,7 +265,7 @@ static int zstd_recv_pages(MultiFDRecvParams *p, Error **errp)
int i;
if (flags != MULTIFD_FLAG_ZSTD) {
- error_setg(errp, "multifd %d: flags received %x flags expected %x",
+ error_setg(errp, "multifd %u: flags received %x flags expected %x",
p->id, flags, MULTIFD_FLAG_ZSTD);
return -1;
}
@@ -297,19 +297,19 @@ static int zstd_recv_pages(MultiFDRecvParams *p, Error **errp)
} while (ret > 0 && (z->in.size - z->in.pos > 0)
&& (z->out.pos < page_size));
if (ret > 0 && (z->out.pos < page_size)) {
- error_setg(errp, "multifd %d: decompressStream buffer too small",
+ error_setg(errp, "multifd %u: decompressStream buffer too small",
p->id);
return -1;
}
if (ZSTD_isError(ret)) {
- error_setg(errp, "multifd %d: decompressStream returned %s",
+ error_setg(errp, "multifd %u: decompressStream returned %s",
p->id, ZSTD_getErrorName(ret));
return ret;
}
out_size += z->out.pos;
}
if (out_size != expected_size) {
- error_setg(errp, "multifd %d: packet size received %d size expected %d",
+ error_setg(errp, "multifd %u: packet size received %u size expected %u",
p->id, out_size, expected_size);
return -1;
}
diff --git a/migration/multifd.c b/migration/multifd.c
index 3242f688e5..4d62850258 100644
--- a/migration/multifd.c
+++ b/migration/multifd.c
@@ -148,7 +148,7 @@ static int nocomp_recv_pages(MultiFDRecvParams *p, Error **errp)
uint32_t flags = p->flags & MULTIFD_FLAG_COMPRESSION_MASK;
if (flags != MULTIFD_FLAG_NOCOMP) {
- error_setg(errp, "multifd %d: flags received %x flags expected %x",
+ error_setg(errp, "multifd %u: flags received %x flags expected %x",
p->id, flags, MULTIFD_FLAG_NOCOMP);
return -1;
}
@@ -212,8 +212,8 @@ static int multifd_recv_initial_packet(QIOChannel *c, Error **errp)
}
if (msg.version != MULTIFD_VERSION) {
- error_setg(errp, "multifd: received packet version %d "
- "expected %d", msg.version, MULTIFD_VERSION);
+ error_setg(errp, "multifd: received packet version %u "
+ "expected %u", msg.version, MULTIFD_VERSION);
return -1;
}
@@ -229,8 +229,8 @@ static int multifd_recv_initial_packet(QIOChannel *c, Error **errp)
}
if (msg.id > migrate_multifd_channels()) {
- error_setg(errp, "multifd: received channel version %d "
- "expected %d", msg.version, MULTIFD_VERSION);
+ error_setg(errp, "multifd: received channel version %u "
+ "expected %u", msg.version, MULTIFD_VERSION);
return -1;
}
@@ -303,7 +303,7 @@ static int multifd_recv_unfill_packet(MultiFDRecvParams *p, Error **errp)
packet->version = be32_to_cpu(packet->version);
if (packet->version != MULTIFD_VERSION) {
error_setg(errp, "multifd: received packet "
- "version %d and expected version %d",
+ "version %u and expected version %u",
packet->version, MULTIFD_VERSION);
return -1;
}
@@ -317,7 +317,7 @@ static int multifd_recv_unfill_packet(MultiFDRecvParams *p, Error **errp)
*/
if (packet->pages_alloc > pages_max * 100) {
error_setg(errp, "multifd: received packet "
- "with size %d and expected a maximum size of %d",
+ "with size %u and expected a maximum size of %u",
packet->pages_alloc, pages_max * 100) ;
return -1;
}
@@ -333,7 +333,7 @@ static int multifd_recv_unfill_packet(MultiFDRecvParams *p, Error **errp)
p->pages->num = be32_to_cpu(packet->pages_used);
if (p->pages->num > packet->pages_alloc) {
error_setg(errp, "multifd: received packet "
- "with %d pages and expected maximum pages are %d",
+ "with %u pages and expected maximum pages are %u",
p->pages->num, packet->pages_alloc) ;
return -1;
}
diff --git a/migration/trace-events b/migration/trace-events
index b48d873b8a..5172cb3b3d 100644
--- a/migration/trace-events
+++ b/migration/trace-events
@@ -115,23 +115,23 @@ ram_write_tracking_ramblock_start(const char *block_id, size_t page_size, void *
ram_write_tracking_ramblock_stop(const char *block_id, size_t page_size, void *addr, size_t length) "%s: page_size: %zu addr: %p length: %zu"
# multifd.c
-multifd_new_send_channel_async(uint8_t id) "channel %d"
-multifd_recv(uint8_t id, uint64_t packet_num, uint32_t used, uint32_t flags, uint32_t next_packet_size) "channel %d packet_num %" PRIu64 " pages %d flags 0x%x next packet size %d"
-multifd_recv_new_channel(uint8_t id) "channel %d"
+multifd_new_send_channel_async(uint8_t id) "channel %u"
+multifd_recv(uint8_t id, uint64_t packet_num, uint32_t used, uint32_t flags, uint32_t next_packet_size) "channel %u packet_num %" PRIu64 " pages %u flags 0x%x next packet size %u"
+multifd_recv_new_channel(uint8_t id) "channel %u"
multifd_recv_sync_main(long packet_num) "packet num %ld"
-multifd_recv_sync_main_signal(uint8_t id) "channel %d"
-multifd_recv_sync_main_wait(uint8_t id) "channel %d"
+multifd_recv_sync_main_signal(uint8_t id) "channel %u"
+multifd_recv_sync_main_wait(uint8_t id) "channel %u"
multifd_recv_terminate_threads(bool error) "error %d"
-multifd_recv_thread_end(uint8_t id, uint64_t packets, uint64_t pages) "channel %d packets %" PRIu64 " pages %" PRIu64
-multifd_recv_thread_start(uint8_t id) "%d"
-multifd_send(uint8_t id, uint64_t packet_num, uint32_t used, uint32_t flags, uint32_t next_packet_size) "channel %d packet_num %" PRIu64 " pages %d flags 0x%x next packet size %d"
-multifd_send_error(uint8_t id) "channel %d"
+multifd_recv_thread_end(uint8_t id, uint64_t packets, uint64_t pages) "channel %u packets %" PRIu64 " pages %" PRIu64
+multifd_recv_thread_start(uint8_t id) "%u"
+multifd_send(uint8_t id, uint64_t packet_num, uint32_t used, uint32_t flags, uint32_t next_packet_size) "channel %u packet_num %" PRIu64 " pages %u flags 0x%x next packet size %u"
+multifd_send_error(uint8_t id) "channel %u"
multifd_send_sync_main(long packet_num) "packet num %ld"
-multifd_send_sync_main_signal(uint8_t id) "channel %d"
-multifd_send_sync_main_wait(uint8_t id) "channel %d"
+multifd_send_sync_main_signal(uint8_t id) "channel %u"
+multifd_send_sync_main_wait(uint8_t id) "channel %u"
multifd_send_terminate_threads(bool error) "error %d"
-multifd_send_thread_end(uint8_t id, uint64_t packets, uint64_t pages) "channel %d packets %" PRIu64 " pages %" PRIu64
-multifd_send_thread_start(uint8_t id) "%d"
+multifd_send_thread_end(uint8_t id, uint64_t packets, uint64_t pages) "channel %u packets %" PRIu64 " pages %" PRIu64
+multifd_send_thread_start(uint8_t id) "%u"
multifd_tls_outgoing_handshake_start(void *ioc, void *tioc, const char *hostname) "ioc=%p tioc=%p hostname=%s"
multifd_tls_outgoing_handshake_error(void *ioc, const char *err) "ioc=%p err=%s"
multifd_tls_outgoing_handshake_complete(void *ioc) "ioc=%p"
--
2.33.1
^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH 2/5] migration: We only need last_stage in two places
2021-12-16 9:13 [PATCH 0/5] migration: misc cleanups Juan Quintela
2021-12-16 9:13 ` [PATCH 1/5] migration: All this fields are unsigned Juan Quintela
@ 2021-12-16 9:13 ` Juan Quintela
2021-12-16 9:30 ` Philippe Mathieu-Daudé
2021-12-16 9:13 ` [PATCH 3/5] migration: ram_release_pages() always receive 1 page as argument Juan Quintela
` (2 subsequent siblings)
4 siblings, 1 reply; 13+ messages in thread
From: Juan Quintela @ 2021-12-16 9:13 UTC (permalink / raw)
To: qemu-devel; +Cc: Leonardo Bras, Dr. David Alan Gilbert, Peter Xu, Juan Quintela
And we are passing it all around. Just add a field to RAMState that
passes it.
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
migration/ram.c | 41 ++++++++++++++++++-----------------------
1 file changed, 18 insertions(+), 23 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index 57efa67f20..7223b0d8ca 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -325,7 +325,8 @@ struct RAMState {
uint64_t xbzrle_bytes_prev;
/* Start using XBZRLE (e.g., after the first round). */
bool xbzrle_enabled;
-
+ /* Are we on the last stage of migration */
+ bool last_stage;
/* compression statistics since the beginning of the period */
/* amount of count that no free thread to compress data */
uint64_t compress_thread_busy_prev;
@@ -683,11 +684,10 @@ static void xbzrle_cache_zero_page(RAMState *rs, ram_addr_t current_addr)
* @current_addr: addr of the page
* @block: block that contains the page we want to send
* @offset: offset inside the block for the page
- * @last_stage: if we are at the completion stage
*/
static int save_xbzrle_page(RAMState *rs, uint8_t **current_data,
ram_addr_t current_addr, RAMBlock *block,
- ram_addr_t offset, bool last_stage)
+ ram_addr_t offset)
{
int encoded_len = 0, bytes_xbzrle;
uint8_t *prev_cached_page;
@@ -695,7 +695,7 @@ static int save_xbzrle_page(RAMState *rs, uint8_t **current_data,
if (!cache_is_cached(XBZRLE.cache, current_addr,
ram_counters.dirty_sync_count)) {
xbzrle_counters.cache_miss++;
- if (!last_stage) {
+ if (!rs->last_stage) {
if (cache_insert(XBZRLE.cache, current_addr, *current_data,
ram_counters.dirty_sync_count) == -1) {
return -1;
@@ -734,7 +734,7 @@ static int save_xbzrle_page(RAMState *rs, uint8_t **current_data,
* Update the cache contents, so that it corresponds to the data
* sent, in all cases except where we skip the page.
*/
- if (!last_stage && encoded_len != 0) {
+ if (!rs->last_stage && encoded_len != 0) {
memcpy(prev_cached_page, XBZRLE.current_buf, TARGET_PAGE_SIZE);
/*
* In the case where we couldn't compress, ensure that the caller
@@ -1290,9 +1290,8 @@ static int save_normal_page(RAMState *rs, RAMBlock *block, ram_addr_t offset,
* @rs: current RAM state
* @block: block that contains the page we want to send
* @offset: offset inside the block for the page
- * @last_stage: if we are at the completion stage
*/
-static int ram_save_page(RAMState *rs, PageSearchStatus *pss, bool last_stage)
+static int ram_save_page(RAMState *rs, PageSearchStatus *pss)
{
int pages = -1;
uint8_t *p;
@@ -1307,8 +1306,8 @@ static int ram_save_page(RAMState *rs, PageSearchStatus *pss, bool last_stage)
XBZRLE_cache_lock();
if (rs->xbzrle_enabled && !migration_in_postcopy()) {
pages = save_xbzrle_page(rs, &p, current_addr, block,
- offset, last_stage);
- if (!last_stage) {
+ offset);
+ if (!rs->last_stage) {
/* Can't send this cached data async, since the cache page
* might get updated before it gets to the wire
*/
@@ -2129,10 +2128,8 @@ static bool save_compress_page(RAMState *rs, RAMBlock *block, ram_addr_t offset)
*
* @rs: current RAM state
* @pss: data about the page we want to send
- * @last_stage: if we are at the completion stage
*/
-static int ram_save_target_page(RAMState *rs, PageSearchStatus *pss,
- bool last_stage)
+static int ram_save_target_page(RAMState *rs, PageSearchStatus *pss)
{
RAMBlock *block = pss->block;
ram_addr_t offset = ((ram_addr_t)pss->page) << TARGET_PAGE_BITS;
@@ -2171,7 +2168,7 @@ static int ram_save_target_page(RAMState *rs, PageSearchStatus *pss,
return ram_save_multifd_page(rs, block, offset);
}
- return ram_save_page(rs, pss, last_stage);
+ return ram_save_page(rs, pss);
}
/**
@@ -2190,10 +2187,8 @@ static int ram_save_target_page(RAMState *rs, PageSearchStatus *pss,
* @rs: current RAM state
* @ms: current migration state
* @pss: data about the page we want to send
- * @last_stage: if we are at the completion stage
*/
-static int ram_save_host_page(RAMState *rs, PageSearchStatus *pss,
- bool last_stage)
+static int ram_save_host_page(RAMState *rs, PageSearchStatus *pss)
{
int tmppages, pages = 0;
size_t pagesize_bits =
@@ -2211,7 +2206,7 @@ static int ram_save_host_page(RAMState *rs, PageSearchStatus *pss,
do {
/* Check the pages is dirty and if it is send it */
if (migration_bitmap_clear_dirty(rs, pss->block, pss->page)) {
- tmppages = ram_save_target_page(rs, pss, last_stage);
+ tmppages = ram_save_target_page(rs, pss);
if (tmppages < 0) {
return tmppages;
}
@@ -2245,13 +2240,11 @@ static int ram_save_host_page(RAMState *rs, PageSearchStatus *pss,
* or negative on error
*
* @rs: current RAM state
- * @last_stage: if we are at the completion stage
*
* On systems where host-page-size > target-page-size it will send all the
* pages in a host page that are dirty.
*/
-
-static int ram_find_and_save_block(RAMState *rs, bool last_stage)
+static int ram_find_and_save_block(RAMState *rs)
{
PageSearchStatus pss;
int pages = 0;
@@ -2280,7 +2273,7 @@ static int ram_find_and_save_block(RAMState *rs, bool last_stage)
}
if (found) {
- pages = ram_save_host_page(rs, &pss, last_stage);
+ pages = ram_save_host_page(rs, &pss);
}
} while (!pages && again);
@@ -3080,7 +3073,7 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
break;
}
- pages = ram_find_and_save_block(rs, false);
+ pages = ram_find_and_save_block(rs);
/* no more pages to sent */
if (pages == 0) {
done = 1;
@@ -3160,6 +3153,8 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
RAMState *rs = *temp;
int ret = 0;
+ rs->last_stage = !migration_in_colo_state();
+
WITH_RCU_READ_LOCK_GUARD() {
if (!migration_in_postcopy()) {
migration_bitmap_sync_precopy(rs);
@@ -3173,7 +3168,7 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
while (true) {
int pages;
- pages = ram_find_and_save_block(rs, !migration_in_colo_state());
+ pages = ram_find_and_save_block(rs);
/* no more blocks to sent */
if (pages == 0) {
break;
--
2.33.1
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