diff options
| author | Juan Quintela <quintela@redhat.com> | 2017-05-10 13:28:13 +0200 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2017-05-17 12:04:59 +0200 |
| commit | 2bf3aa85f08186b8162b76e7e8efe5b5a44306a6 (patch) | |
| tree | d3bbbeb63ac813e04ed3f64aeeabcdd06fd507cf /migration/ram.c | |
| parent | cdece0467c00007cf8e3f4b3c3f0b13bf2c4fea9 (diff) | |
migration: Fix regression with compression threads
Compression threads got broken on commit
commit 247956946651ae0280f7b1ea88bb6237dd01c231
Author: Juan Quintela <quintela@redhat.com>
Date: Tue Mar 21 11:45:01 2017 +0100
ram: reorganize last_sent_block
On do_compress_ram_page() we use a different QEMUFile than the
migration one. We need to pass it there. The failure can be seen as:
(qemu) qemu-system-x86_64: Unknown combination of migration flags: 0
qemu-system-x86_64: error while loading state section id 3(ram)
qemu-system-x86_64: load of migration failed: Invalid argument
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Peter Xu <peterx@redhat.com>
Diffstat (limited to 'migration/ram.c')
| -rw-r--r-- | migration/ram.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/migration/ram.c b/migration/ram.c index 293d27ce83..995d1fca3b 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -436,20 +436,21 @@ void migrate_compress_threads_create(void) * @offset: offset inside the block for the page * in the lower bits, it contains flags */ -static size_t save_page_header(RAMState *rs, RAMBlock *block, ram_addr_t offset) +static size_t save_page_header(RAMState *rs, QEMUFile *f, RAMBlock *block, + ram_addr_t offset) { size_t size, len; if (block == rs->last_sent_block) { offset |= RAM_SAVE_FLAG_CONTINUE; } - qemu_put_be64(rs->f, offset); + qemu_put_be64(f, offset); size = 8; if (!(offset & RAM_SAVE_FLAG_CONTINUE)) { len = strlen(block->idstr); - qemu_put_byte(rs->f, len); - qemu_put_buffer(rs->f, (uint8_t *)block->idstr, len); + qemu_put_byte(f, len); + qemu_put_buffer(f, (uint8_t *)block->idstr, len); size += 1 + len; rs->last_sent_block = block; } @@ -571,7 +572,7 @@ static int save_xbzrle_page(RAMState *rs, uint8_t **current_data, } /* Send XBZRLE based compressed page */ - bytes_xbzrle = save_page_header(rs, block, + bytes_xbzrle = save_page_header(rs, rs->f, block, offset | RAM_SAVE_FLAG_XBZRLE); qemu_put_byte(rs->f, ENCODING_FLAG_XBZRLE); qemu_put_be16(rs->f, encoded_len); @@ -745,7 +746,7 @@ static int save_zero_page(RAMState *rs, RAMBlock *block, ram_addr_t offset, if (is_zero_range(p, TARGET_PAGE_SIZE)) { rs->zero_pages++; rs->bytes_transferred += - save_page_header(rs, block, offset | RAM_SAVE_FLAG_COMPRESS); + save_page_header(rs, rs->f, block, offset | RAM_SAVE_FLAG_COMPRESS); qemu_put_byte(rs->f, 0); rs->bytes_transferred += 1; pages = 1; @@ -834,7 +835,7 @@ static int ram_save_page(RAMState *rs, PageSearchStatus *pss, bool last_stage) /* XBZRLE overflow or normal page */ if (pages == -1) { - rs->bytes_transferred += save_page_header(rs, block, + rs->bytes_transferred += save_page_header(rs, rs->f, block, offset | RAM_SAVE_FLAG_PAGE); if (send_async) { qemu_put_buffer_async(rs->f, p, TARGET_PAGE_SIZE, @@ -860,7 +861,7 @@ static int do_compress_ram_page(QEMUFile *f, RAMBlock *block, int bytes_sent, blen; uint8_t *p = block->host + (offset & TARGET_PAGE_MASK); - bytes_sent = save_page_header(rs, block, offset | + bytes_sent = save_page_header(rs, f, block, offset | RAM_SAVE_FLAG_COMPRESS_PAGE); blen = qemu_put_compression_data(f, p, TARGET_PAGE_SIZE, migrate_compress_level()); @@ -991,7 +992,7 @@ static int ram_save_compressed_page(RAMState *rs, PageSearchStatus *pss, pages = save_zero_page(rs, block, offset, p); if (pages == -1) { /* Make sure the first page is sent out before other pages */ - bytes_xmit = save_page_header(rs, block, offset | + bytes_xmit = save_page_header(rs, rs->f, block, offset | RAM_SAVE_FLAG_COMPRESS_PAGE); blen = qemu_put_compression_data(rs->f, p, TARGET_PAGE_SIZE, migrate_compress_level()); |