Re: [PATCH] bcache: Remove usage of the deprecated ida_simple_xx() API

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Le 14/01/2024 à 16:16, Coly Li a écrit :
On Sun, Jan 14, 2024 at 01:30:16PM +0100, Christophe JAILLET wrote:
ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

Note that the upper limit of ida_simple_get() is exclusive, but the one of
ida_alloc_max() is inclusive. So a -1 has been added when needed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>

It looks good to me. Add this patch into my testing directory.

Thanks.

Coly Li

Hi,

polite reminder ;-)

CJ



---
  drivers/md/bcache/super.c | 10 +++++-----
  1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index dc3f50f69714..a2eecd1db126 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -881,8 +881,8 @@ static void bcache_device_free(struct bcache_device *d)
  		bcache_device_detach(d);
if (disk) {
-		ida_simple_remove(&bcache_device_idx,
-				  first_minor_to_idx(disk->first_minor));
+		ida_free(&bcache_device_idx,
+			 first_minor_to_idx(disk->first_minor));
  		put_disk(disk);
  	}
@@ -926,8 +926,8 @@ static int bcache_device_init(struct bcache_device *d, unsigned int block_size,
  	if (!d->full_dirty_stripes)
  		goto out_free_stripe_sectors_dirty;
- idx = ida_simple_get(&bcache_device_idx, 0,
-				BCACHE_DEVICE_IDX_MAX, GFP_KERNEL);
+	idx = ida_alloc_max(&bcache_device_idx, BCACHE_DEVICE_IDX_MAX - 1,
+			    GFP_KERNEL);
  	if (idx < 0)
  		goto out_free_full_dirty_stripes;
@@ -980,7 +980,7 @@ static int bcache_device_init(struct bcache_device *d, unsigned int block_size,
  out_bioset_exit:
  	bioset_exit(&d->bio_split);
  out_ida_remove:
-	ida_simple_remove(&bcache_device_idx, idx);
+	ida_free(&bcache_device_idx, idx);
  out_free_full_dirty_stripes:
  	kvfree(d->full_dirty_stripes);
  out_free_stripe_sectors_dirty:
--
2.43.0







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