Re: [PATCH md-6.12 v2 29/42] md/md-bitmap: mrege md_bitmap_cond_end_sync() into bitmap_operations

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Hi,

在 2024/08/26 16:09, Paul Menzel 写道:
Dear Kuai,


Thank you for your patch. (I am still confused, what your given and surname is.)

Am 26.08.24 um 09:44 schrieb Yu Kuai:
From: Yu Kuai <yukuai3@xxxxxxxxxx>

There is a typo in the summary: mrege → merge.

Got it!.

So that the implementation won't be exposed, and it'll be possible
to invent a new bitmap by replacing bitmap_operations.

Also change the parameter from bitmap to mddev, to avoid access
bitmap outside md-bitmap.c as much as possible.

Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
  drivers/md/md-bitmap.c | 6 ++++--
  drivers/md/md-bitmap.h | 2 +-
  drivers/md/raid1.c     | 6 +++---
  drivers/md/raid10.c    | 2 +-
  drivers/md/raid5.c     | 2 +-
  5 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
index e1dceff2d9a5..2d9d9689f721 100644
--- a/drivers/md/md-bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -1690,10 +1690,12 @@ static void bitmap_close_sync(struct mddev *mddev)
      }
  }
-void md_bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector, bool force)
+static void bitmap_cond_end_sync(struct mddev *mddev, sector_t sector,
+                 bool force)
  {
      sector_t s = 0;
      sector_t blocks;
+    struct bitmap *bitmap = mddev->bitmap;
      if (!bitmap)
          return;
@@ -1718,7 +1720,6 @@ void md_bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector, bool force)
      bitmap->last_end_sync = jiffies;
      sysfs_notify_dirent_safe(bitmap->mddev->sysfs_completed);
  }
-EXPORT_SYMBOL(md_bitmap_cond_end_sync);
  void md_bitmap_sync_with_cluster(struct mddev *mddev,
                    sector_t old_lo, sector_t old_hi,
@@ -2747,6 +2748,7 @@ static struct bitmap_operations bitmap_ops = {
      .endwrite        = bitmap_endwrite,
      .start_sync        = bitmap_start_sync,
      .end_sync        = bitmap_end_sync,
+    .cond_end_sync        = bitmap_cond_end_sync,
      .close_sync        = bitmap_close_sync,
      .update_sb        = bitmap_update_sb,
diff --git a/drivers/md/md-bitmap.h b/drivers/md/md-bitmap.h
index 5d919b530317..027de097f96a 100644
--- a/drivers/md/md-bitmap.h
+++ b/drivers/md/md-bitmap.h
@@ -262,6 +262,7 @@ struct bitmap_operations {
      bool (*start_sync)(struct mddev *mddev, sector_t offset,
                 sector_t *blocks, bool degraded);
      void (*end_sync)(struct mddev *mddev, sector_t offset, sector_t *blocks); +    void (*cond_end_sync)(struct mddev *mddev, sector_t sector, bool force);
      void (*close_sync)(struct mddev *mddev);
      void (*update_sb)(struct bitmap *bitmap);
@@ -272,7 +273,6 @@ struct bitmap_operations {
  void mddev_set_bitmap_ops(struct mddev *mddev);
  /* these are exported */
-void md_bitmap_cond_end_sync(struct bitmap *bitmap, sector_t sector, bool force);
  void md_bitmap_sync_with_cluster(struct mddev *mddev,
                   sector_t old_lo, sector_t old_hi,
                   sector_t new_lo, sector_t new_hi);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 52ca5619d9b4..00174cacb1f4 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2828,9 +2828,9 @@ static sector_t raid1_sync_request(struct mddev *mddev, sector_t sector_nr,
       * sector_nr + two times RESYNC_SECTORS
       */
-    md_bitmap_cond_end_sync(mddev->bitmap, sector_nr,
-        mddev_is_clustered(mddev) && (sector_nr + 2 * RESYNC_SECTORS > conf->cluster_sync_high));
-
+    mddev->bitmap_ops->cond_end_sync(mddev, sector_nr,
+        mddev_is_clustered(mddev) &&
+        (sector_nr + 2 * RESYNC_SECTORS > conf->cluster_sync_high));
      if (raise_barrier(conf, sector_nr))
          return 0;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 5b1c86c368b1..5a7b19f48c45 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -3543,7 +3543,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
           * safety reason, which ensures curr_resync_completed is
           * updated in bitmap_cond_end_sync.
           */
-        md_bitmap_cond_end_sync(mddev->bitmap, sector_nr,
+        mddev->bitmap_ops->cond_end_sync(mddev, sector_nr,
                      mddev_is_clustered(mddev) &&
                      (sector_nr + 2 * RESYNC_SECTORS > conf->cluster_sync_high));
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index d2b8d2517abf..87b8d19ab601 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -6540,7 +6540,7 @@ static inline sector_t raid5_sync_request(struct mddev *mddev, sector_t sector_n
          return sync_blocks * RAID5_STRIPE_SECTORS(conf);
      }
-    md_bitmap_cond_end_sync(mddev->bitmap, sector_nr, false);
+    mddev->bitmap_ops->cond_end_sync(mddev, sector_nr, false);
      sh = raid5_get_active_stripe(conf, NULL, sector_nr,
                       R5_GAS_NOBLOCK);

The diff looks good to me.


Kind regards,

Thanks for the review!.
Kuai


Paul
.






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