diff options
| author | Yu Kuai <yukuai3@huawei.com> | 2024-08-26 10:44:21 +0300 |
|---|---|---|
| committer | Song Liu <song@kernel.org> | 2024-08-27 20:14:15 +0300 |
| commit | 7add9db6ba3e9bd12d2be97abbc13f3881a515db (patch) | |
| tree | cce9954b1739fac2ae34c2091689b674c9b5e7b5 | |
| parent | 27832ad3f7f0f5080d472fa8621ff92166ca9fac (diff) | |
| download | linux-7add9db6ba3e9bd12d2be97abbc13f3881a515db.tar.xz | |
md/md-bitmap: introduce struct bitmap_operations
The structure is empty for now, and will be used in later patches to
merge in bitmap operations, so that bitmap implementation won't be
exposed.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20240826074452.1490072-12-yukuai1@huaweicloud.com
Signed-off-by: Song Liu <song@kernel.org>
| -rw-r--r-- | drivers/md/md-bitmap.c | 8 | ||||
| -rw-r--r-- | drivers/md/md-bitmap.h | 4 | ||||
| -rw-r--r-- | drivers/md/md.c | 1 | ||||
| -rw-r--r-- | drivers/md/md.h | 1 |
4 files changed, 14 insertions, 0 deletions
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c index 015997b4b835..69d9c959fe49 100644 --- a/drivers/md/md-bitmap.c +++ b/drivers/md/md-bitmap.c @@ -2714,3 +2714,11 @@ const struct attribute_group md_bitmap_group = { .name = "bitmap", .attrs = md_bitmap_attrs, }; + +static struct bitmap_operations bitmap_ops = { +}; + +void mddev_set_bitmap_ops(struct mddev *mddev) +{ + mddev->bitmap_ops = &bitmap_ops; +} diff --git a/drivers/md/md-bitmap.h b/drivers/md/md-bitmap.h index c4d64311c0e8..14c21ab42f9e 100644 --- a/drivers/md/md-bitmap.h +++ b/drivers/md/md-bitmap.h @@ -246,7 +246,11 @@ struct md_bitmap_stats { struct file *file; }; +struct bitmap_operations { +}; + /* the bitmap API */ +void mddev_set_bitmap_ops(struct mddev *mddev); /* these are used only by md/bitmap */ struct bitmap *md_bitmap_create(struct mddev *mddev, int slot); diff --git a/drivers/md/md.c b/drivers/md/md.c index 06c0918111e3..f86e6911318f 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -772,6 +772,7 @@ int mddev_init(struct mddev *mddev) mddev->resync_min = 0; mddev->resync_max = MaxSector; mddev->level = LEVEL_NONE; + mddev_set_bitmap_ops(mddev); INIT_WORK(&mddev->sync_work, md_start_sync); INIT_WORK(&mddev->del_work, mddev_delayed_delete); diff --git a/drivers/md/md.h b/drivers/md/md.h index a0d6827dced9..e56193f71ab4 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -536,6 +536,7 @@ struct mddev { int sync_checkers; /* # of threads checking writes_pending */ struct bitmap *bitmap; /* the bitmap for the device */ + struct bitmap_operations *bitmap_ops; struct { struct file *file; /* the bitmap file */ loff_t offset; /* offset from superblock of |