From 2d15ce1f7898287ef50a658bb08aeb4bb22b8a0a Mon Sep 17 00:00:00 2001 Message-Id: <2d15ce1f7898287ef50a658bb08aeb4bb22b8a0a.1387382496.git.minovotn@redhat.com> In-Reply-To: References: From: Nigel Croxon Date: Thu, 14 Nov 2013 22:52:41 +0100 Subject: [PATCH 05/46] rdma: introduce qemu_update_position() RH-Author: Nigel Croxon Message-id: <1384469598-13137-6-git-send-email-ncroxon@redhat.com> Patchwork-id: 55689 O-Subject: [RHEL7.0 PATCH 05/42] rdma: introduce qemu_update_position() Bugzilla: 1011720 RH-Acked-by: Orit Wasserman RH-Acked-by: Amit Shah RH-Acked-by: Paolo Bonzini Bugzilla: 1011720 https://bugzilla.redhat.com/show_bug.cgi?id=1011720 >From commit ID: commit 2b0ce0797d6bfb13ebefe010da86abced0b7a9b3 Author: Michael R. Hines Date: Tue Jun 25 21:35:28 2013 -0400 rdma: introduce qemu_update_position() RDMA writes happen asynchronously, and thus the performance accounting also needs to be able to occur asynchronously. This allows anybody to call into savevm.c to update both f->pos as well as into arch_init.c to update the acct_info structure with up-to-date values when the RDMA transfer actually completes. Reviewed-by: Juan Quintela Tested-by: Chegu Vinod Tested-by: Michael R. Hines Signed-off-by: Michael R. Hines Signed-off-by: Juan Quintela --- arch_init.c | 12 ++++++++++++ include/migration/migration.h | 2 ++ include/migration/qemu-file.h | 1 + savevm.c | 5 +++++ 4 files changed, 20 insertions(+), 0 deletions(-) Signed-off-by: Michal Novotny --- arch_init.c | 12 ++++++++++++ include/migration/migration.h | 2 ++ include/migration/qemu-file.h | 1 + savevm.c | 5 +++++ 4 files changed, 20 insertions(+) diff --git a/arch_init.c b/arch_init.c index 2c0ea1b..e940ede 100644 --- a/arch_init.c +++ b/arch_init.c @@ -522,6 +522,18 @@ static int ram_save_block(QEMUFile *f, bool last_stage) static uint64_t bytes_transferred; +void acct_update_position(QEMUFile *f, size_t size, bool zero) +{ + uint64_t pages = size / TARGET_PAGE_SIZE; + if (zero) { + acct_info.dup_pages += pages; + } else { + acct_info.norm_pages += pages; + bytes_transferred += size; + qemu_update_position(f, size); + } +} + static ram_addr_t ram_save_remaining(void) { return migration_dirty_pages; diff --git a/include/migration/migration.h b/include/migration/migration.h index f1519dd..2f3a3d9 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -92,6 +92,8 @@ uint64_t ram_bytes_remaining(void); uint64_t ram_bytes_transferred(void); uint64_t ram_bytes_total(void); +void acct_update_position(QEMUFile *f, size_t size, bool zero); + extern SaveVMHandlers savevm_ram_handlers; uint64_t dup_mig_bytes_transferred(void); diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h index 8931e16..fb1cf40 100644 --- a/include/migration/qemu-file.h +++ b/include/migration/qemu-file.h @@ -93,6 +93,7 @@ void qemu_put_be32(QEMUFile *f, unsigned int v); void qemu_put_be64(QEMUFile *f, uint64_t v); int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size); int qemu_get_byte(QEMUFile *f); +void qemu_update_position(QEMUFile *f, size_t size); static inline unsigned int qemu_get_ubyte(QEMUFile *f) { diff --git a/savevm.c b/savevm.c index 4d898af..f68f7f2 100644 --- a/savevm.c +++ b/savevm.c @@ -671,6 +671,11 @@ int qemu_get_fd(QEMUFile *f) return -1; } +void qemu_update_position(QEMUFile *f, size_t size) +{ + f->pos += size; +} + /** Closes the file * * Returns negative error value if any error happened on previous operations or -- 1.7.11.7