le_bitmap_clear() was implemented as a parallel to le_bitmap_set() but
is actually not being used. This patch removes it.
Signed-off-by: Howard McLauchlan <hmclauch...@fb.com>
---
fs/btrfs/extent_io.c | 20 --------------------
fs/btrfs/extent_io.h | 1 -
2 files changed, 21 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index e99b329002cf..cf50278f1c59 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -5640,26 +5640,6 @@ void le_bitmap_set(u8 *map, unsigned int start, int len)
}
}
-void le_bitmap_clear(u8 *map, unsigned int start, int len)
-{
- u8 *p = map + BIT_BYTE(start);
- const unsigned int size = start + len;
- int bits_to_clear = BITS_PER_BYTE - (start % BITS_PER_BYTE);
- u8 mask_to_clear = BITMAP_FIRST_BYTE_MASK(start);
-
- while (len - bits_to_clear >= 0) {
- *p &= ~mask_to_clear;
- len -= bits_to_clear;
- bits_to_clear = BITS_PER_BYTE;
- mask_to_clear = ~0;
- p++;
- }
- if (len) {
- mask_to_clear &= BITMAP_LAST_BYTE_MASK(size);
- *p &= ~mask_to_clear;
- }
-}
-
/*
* eb_bitmap_offset() - calculate the page and offset of the byte containing
the
* given bit number
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index a53009694b16..4b8b072d9594 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -85,7 +85,6 @@ static inline int le_test_bit(int nr, const u8 *addr)
}
void le_bitmap_set(u8 *map, unsigned int start, int len);
-void le_bitmap_clear(u8 *map, unsigned int start, int len);
struct extent_state;
struct btrfs_root;
--
2.17.0
--
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