From facf543c0113987a0fd9ec48138cd2da09c41efd Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Fri, 22 Feb 2013 17:36:47 +0100 Subject: [PATCH 245/246] migration: eliminate s->migration_file The indirection is useless now. Backends can open s->file directly. Reviewed-by: Orit Wasserman Reviewed-by: Juan Quintela Signed-off-by: Paolo Bonzini Signed-off-by: Juan Quintela --- include/migration/migration.h | 2 -- migration-exec.c | 4 ++-- migration-fd.c | 2 +- migration-tcp.c | 4 ++-- migration-unix.c | 4 ++-- migration.c | 51 ++++--------------------------------------- 6 files changed, 11 insertions(+), 56 deletions(-) diff --git a/include/migration/migration.h b/include/migration/migration.h index ae94706..bb617fd 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -36,9 +36,7 @@ struct MigrationState size_t xfer_limit; QemuThread thread; QEMUBH *cleanup_bh; - QEMUFile *file; - QEMUFile *migration_file; int state; MigrationParams params; diff --git a/migration-exec.c b/migration-exec.c index 1c539de..deab4e3 100644 --- a/migration-exec.c +++ b/migration-exec.c @@ -35,8 +35,8 @@ void exec_start_outgoing_migration(MigrationState *s, const char *command, Error **errp) { - s->migration_file = qemu_popen_cmd(command, "w"); - if (s->migration_file == NULL) { + s->file = qemu_popen_cmd(command, "w"); + if (s->file == NULL) { error_setg_errno(errp, errno, "failed to popen the migration target"); return; } diff --git a/migration-fd.c b/migration-fd.c index 07c758a..3d4613c 100644 --- a/migration-fd.c +++ b/migration-fd.c @@ -36,7 +36,7 @@ void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error ** if (fd == -1) { return; } - s->migration_file = qemu_fdopen(fd, "wb"); + s->file = qemu_fdopen(fd, "wb"); migrate_fd_connect(s); } diff --git a/migration-tcp.c b/migration-tcp.c index 5ea4f3d..b20ee58 100644 --- a/migration-tcp.c +++ b/migration-tcp.c @@ -35,11 +35,11 @@ static void tcp_wait_for_connect(int fd, void *opaque) if (fd < 0) { DPRINTF("migrate connect error\n"); - s->migration_file = NULL; + s->file = NULL; migrate_fd_error(s); } else { DPRINTF("migrate connect success\n"); - s->migration_file = qemu_fopen_socket(fd, "wb"); + s->file = qemu_fopen_socket(fd, "wb"); migrate_fd_connect(s); } } diff --git a/migration-unix.c b/migration-unix.c index 64bfa31..94b7022 100644 --- a/migration-unix.c +++ b/migration-unix.c @@ -35,11 +35,11 @@ static void unix_wait_for_connect(int fd, void *opaque) if (fd < 0) { DPRINTF("migrate connect error\n"); - s->migration_file = NULL; + s->file = NULL; migrate_fd_error(s); } else { DPRINTF("migrate connect success\n"); - s->migration_file = qemu_fopen_socket(fd, "wb"); + s->file = qemu_fopen_socket(fd, "wb"); migrate_fd_connect(s); } } diff --git a/migration.c b/migration.c index 949a5bc..68ce4c9 100644 --- a/migration.c +++ b/migration.c @@ -270,9 +270,6 @@ static void migrate_fd_cleanup(void *opaque) if (s->file) { DPRINTF("closing file\n"); - qemu_fclose(s->file); - s->file = NULL; - qemu_mutex_unlock_iothread(); qemu_thread_join(&s->thread); qemu_mutex_lock_iothread(); @@ -280,7 +277,7 @@ static void migrate_fd_cleanup(void *opaque) migrate_fd_close(s); } - assert(s->migration_file == NULL); + assert(s->file == NULL); assert(s->state != MIG_STATE_ACTIVE); if (s->state != MIG_STATE_COMPLETED) { @@ -317,9 +314,9 @@ static void migrate_fd_cancel(MigrationState *s) int migrate_fd_close(MigrationState *s) { int rc = 0; - if (s->migration_file != NULL) { - rc = qemu_fclose(s->migration_file); - s->migration_file = NULL; + if (s->file != NULL) { + rc = qemu_fclose(s->file); + s->file = NULL; } return rc; } @@ -506,39 +503,6 @@ int64_t migrate_xbzrle_cache_size(void) /* migration thread support */ -static int migration_put_buffer(void *opaque, const uint8_t *buf, - int64_t pos, int size) -{ - MigrationState *s = opaque; - int ret; - - DPRINTF("putting %d bytes at %" PRId64 "\n", size, pos); - - if (size <= 0) { - return size; - } - - qemu_put_buffer(s->migration_file, buf, size); - ret = qemu_file_get_error(s->migration_file); - if (ret) { - return ret; - } - - return size; -} - -static int migration_close(void *opaque) -{ - return 0; -} - -static int migration_get_fd(void *opaque) -{ - MigrationState *s = opaque; - - return qemu_get_fd(s->migration_file); -} - static void *migration_thread(void *opaque) { MigrationState *s = opaque; @@ -628,12 +592,6 @@ static void *migration_thread(void *opaque) return NULL; } -static const QEMUFileOps migration_file_ops = { - .get_fd = migration_get_fd, - .put_buffer = migration_put_buffer, - .close = migration_close, -}; - void migrate_fd_connect(MigrationState *s) { s->state = MIG_STATE_ACTIVE; @@ -642,7 +600,6 @@ void migrate_fd_connect(MigrationState *s) /* This is a best 1st approximation. ns to ms */ s->expected_downtime = max_downtime/1000000; s->cleanup_bh = qemu_bh_new(migrate_fd_cleanup, s); - s->file = qemu_fopen_ops(s, &migration_file_ops); qemu_file_set_rate_limit(s->file, s->bandwidth_limit / XFER_LIMIT_RATIO); -- 1.8.2.1