Blame SOURCES/kvm-block-backup-make-function-variables-consistently-na.patch

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From d829a781a2832a72264ade11062dad0e5ef578da Mon Sep 17 00:00:00 2001
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From: John Snow <jsnow@redhat.com>
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Date: Mon, 10 Sep 2018 18:17:45 +0200
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Subject: [PATCH 07/25] block/backup: make function variables consistently
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 named
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RH-Author: John Snow <jsnow@redhat.com>
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Message-id: <20180910181803.11781-8-jsnow@redhat.com>
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Patchwork-id: 82086
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O-Subject: [RHEL-7.6 qemu-kvm-rhev PATCH 07/25] block/backup: make function variables consistently named
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Bugzilla: 1626061
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
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Rename opaque_job to job to be consistent with other job implementations.
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Rename 'job', the BackupBlockJob object, to 's' to also be consistent.
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Suggested-by: Eric Blake <eblake@redhat.com>
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Signed-off-by: John Snow <jsnow@redhat.com>
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Reviewed-by: Max Reitz <mreitz@redhat.com>
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Message-id: 20180830015734.19765-8-jsnow@redhat.com
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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(cherry picked from commit 6870277535493fea31761d8d11ec23add2de0fb0)
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Signed-off-by: John Snow <jsnow@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 block/backup.c | 62 +++++++++++++++++++++++++++++-----------------------------
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 1 file changed, 31 insertions(+), 31 deletions(-)
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diff --git a/block/backup.c b/block/backup.c
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index 08a5b74..524e0ff 100644
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--- a/block/backup.c
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+++ b/block/backup.c
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@@ -468,59 +468,59 @@ static void backup_incremental_init_copy_bitmap(BackupBlockJob *job)
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     bdrv_dirty_iter_free(dbi);
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 }
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-static int coroutine_fn backup_run(Job *opaque_job, Error **errp)
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+static int coroutine_fn backup_run(Job *job, Error **errp)
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 {
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-    BackupBlockJob *job = container_of(opaque_job, BackupBlockJob, common.job);
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-    BlockDriverState *bs = blk_bs(job->common.blk);
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+    BackupBlockJob *s = container_of(job, BackupBlockJob, common.job);
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+    BlockDriverState *bs = blk_bs(s->common.blk);
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     int64_t offset, nb_clusters;
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     int ret = 0;
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-    QLIST_INIT(&job->inflight_reqs);
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-    qemu_co_rwlock_init(&job->flush_rwlock);
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+    QLIST_INIT(&s->inflight_reqs);
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+    qemu_co_rwlock_init(&s->flush_rwlock);
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-    nb_clusters = DIV_ROUND_UP(job->len, job->cluster_size);
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-    job_progress_set_remaining(&job->common.job, job->len);
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+    nb_clusters = DIV_ROUND_UP(s->len, s->cluster_size);
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+    job_progress_set_remaining(job, s->len);
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-    job->copy_bitmap = hbitmap_alloc(nb_clusters, 0);
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-    if (job->sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {
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-        backup_incremental_init_copy_bitmap(job);
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+    s->copy_bitmap = hbitmap_alloc(nb_clusters, 0);
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+    if (s->sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {
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+        backup_incremental_init_copy_bitmap(s);
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     } else {
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-        hbitmap_set(job->copy_bitmap, 0, nb_clusters);
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+        hbitmap_set(s->copy_bitmap, 0, nb_clusters);
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     }
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-    job->before_write.notify = backup_before_write_notify;
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-    bdrv_add_before_write_notifier(bs, &job->before_write);
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+    s->before_write.notify = backup_before_write_notify;
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+    bdrv_add_before_write_notifier(bs, &s->before_write);
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-    if (job->sync_mode == MIRROR_SYNC_MODE_NONE) {
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+    if (s->sync_mode == MIRROR_SYNC_MODE_NONE) {
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         /* All bits are set in copy_bitmap to allow any cluster to be copied.
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          * This does not actually require them to be copied. */
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-        while (!job_is_cancelled(&job->common.job)) {
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+        while (!job_is_cancelled(job)) {
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             /* Yield until the job is cancelled.  We just let our before_write
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              * notify callback service CoW requests. */
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-            job_yield(&job->common.job);
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+            job_yield(job);
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         }
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-    } else if (job->sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {
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-        ret = backup_run_incremental(job);
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+    } else if (s->sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {
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+        ret = backup_run_incremental(s);
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     } else {
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         /* Both FULL and TOP SYNC_MODE's require copying.. */
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-        for (offset = 0; offset < job->len;
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-             offset += job->cluster_size) {
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+        for (offset = 0; offset < s->len;
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+             offset += s->cluster_size) {
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             bool error_is_read;
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             int alloced = 0;
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-            if (yield_and_check(job)) {
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+            if (yield_and_check(s)) {
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                 break;
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             }
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-            if (job->sync_mode == MIRROR_SYNC_MODE_TOP) {
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+            if (s->sync_mode == MIRROR_SYNC_MODE_TOP) {
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                 int i;
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                 int64_t n;
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                 /* Check to see if these blocks are already in the
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                  * backing file. */
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-                for (i = 0; i < job->cluster_size;) {
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+                for (i = 0; i < s->cluster_size;) {
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                     /* bdrv_is_allocated() only returns true/false based
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                      * on the first set of sectors it comes across that
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                      * are are all in the same state.
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@@ -529,7 +529,7 @@ static int coroutine_fn backup_run(Job *opaque_job, Error **errp)
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                      * needed but at some point that is always the case. */
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                     alloced =
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                         bdrv_is_allocated(bs, offset + i,
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-                                          job->cluster_size - i, &n);
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+                                          s->cluster_size - i, &n);
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                     i += n;
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                     if (alloced || n == 0) {
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@@ -547,29 +547,29 @@ static int coroutine_fn backup_run(Job *opaque_job, Error **errp)
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             if (alloced < 0) {
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                 ret = alloced;
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             } else {
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-                ret = backup_do_cow(job, offset, job->cluster_size,
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+                ret = backup_do_cow(s, offset, s->cluster_size,
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                                     &error_is_read, false);
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             }
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             if (ret < 0) {
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                 /* Depending on error action, fail now or retry cluster */
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                 BlockErrorAction action =
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-                    backup_error_action(job, error_is_read, -ret);
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+                    backup_error_action(s, error_is_read, -ret);
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                 if (action == BLOCK_ERROR_ACTION_REPORT) {
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                     break;
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                 } else {
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-                    offset -= job->cluster_size;
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+                    offset -= s->cluster_size;
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                     continue;
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                 }
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             }
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         }
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     }
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-    notifier_with_return_remove(&job->before_write);
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+    notifier_with_return_remove(&s->before_write);
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     /* wait until pending backup_do_cow() calls have completed */
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-    qemu_co_rwlock_wrlock(&job->flush_rwlock);
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-    qemu_co_rwlock_unlock(&job->flush_rwlock);
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-    hbitmap_free(job->copy_bitmap);
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+    qemu_co_rwlock_wrlock(&s->flush_rwlock);
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+    qemu_co_rwlock_unlock(&s->flush_rwlock);
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+    hbitmap_free(s->copy_bitmap);
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     return ret;
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 }
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-- 
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1.8.3.1
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