From: Yu Kuai <yukuai3@xxxxxxxxxx>
Because it's only used inside sbitmap.c.
Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
block/kyber-iosched.c | 2 +-
include/linux/sbitmap.h | 17 -----------------
lib/sbitmap.c | 3 +--
3 files changed, 2 insertions(+), 20 deletions(-)
diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c
index 4155594aefc6..2cb579b288e1 100644
--- a/block/kyber-iosched.c
+++ b/block/kyber-iosched.c
@@ -159,7 +159,7 @@ struct kyber_queue_data {
/*
* Async request percentage, converted to per-word depth for
- * sbitmap_get_shallow().
+ * sbitmap_queue_get_shallow().
*/
unsigned int async_depth;
diff --git a/include/linux/sbitmap.h b/include/linux/sbitmap.h
index 189140bf11fc..e1730f5fdf9c 100644
--- a/include/linux/sbitmap.h
+++ b/include/linux/sbitmap.h
@@ -209,23 +209,6 @@ void sbitmap_resize(struct sbitmap *sb, unsigned int depth);
*/
int sbitmap_get(struct sbitmap *sb);
-/**
- * sbitmap_get_shallow() - Try to allocate a free bit from a &struct sbitmap,
- * limiting the depth used from each word.
- * @sb: Bitmap to allocate from.
- * @shallow_depth: The maximum number of bits to allocate from a single word.
- *
- * This rather specific operation allows for having multiple users with
- * different allocation limits. E.g., there can be a high-priority class that
- * uses sbitmap_get() and a low-priority class that uses sbitmap_get_shallow()
- * with a @shallow_depth of (1 << (@sb->shift - 1)). Then, the low-priority
- * class can only allocate half of the total bits in the bitmap, preventing it
- * from starving out the high-priority class.
- *
- * Return: Non-negative allocated bit number if successful, -1 otherwise.
- */
-int sbitmap_get_shallow(struct sbitmap *sb, unsigned long shallow_depth);
-
/**
* sbitmap_any_bit_set() - Check for a set bit in a &struct sbitmap.
* @sb: Bitmap to check.
diff --git a/lib/sbitmap.c b/lib/sbitmap.c
index d3412984170c..9d4213ce7916 100644
--- a/lib/sbitmap.c
+++ b/lib/sbitmap.c
@@ -287,7 +287,7 @@ static int __sbitmap_get_shallow(struct sbitmap *sb,
return sbitmap_find_bit(sb, shallow_depth, index, alloc_hint, true);
}
-int sbitmap_get_shallow(struct sbitmap *sb, unsigned long shallow_depth)
+static int sbitmap_get_shallow(struct sbitmap *sb, unsigned long shallow_depth)
{
int nr;
unsigned int hint, depth;
@@ -302,7 +302,6 @@ int sbitmap_get_shallow(struct sbitmap *sb, unsigned long shallow_depth)
return nr;
}
-EXPORT_SYMBOL_GPL(sbitmap_get_shallow);
bool sbitmap_any_bit_set(const struct sbitmap *sb)
{
--
2.39.2
