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apfs: use __set_bit_le() to set bitmap bits

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In the spirit of the previous patch, use the __set_bit_le() provided by
the kernel to simplify apfs_chunk_mark_used().  There is no endianness
issue this time, but it's still better to use the common code.

Also change the type of the bitmap from u8* to char*, for consistency
with apfs_chunk_find_free().

Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
This commit is contained in:
Ernesto A. Fernández committed 2019-10-30 00:12:16 -03:00
1 parent ae88026d5f
commit 4e5bb38d6b
1 file changed
+4 -5
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fs/apfs/spaceman.c
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@@ -213,13 +213,12 @@ static u64 apfs_chunk_find_free(struct super_block *sb, char *bitmap, u64 addr)
* @bitmap: allocation bitmap for the chunk
* @bno: block number (must belong to the chunk)
*/
static void apfs_chunk_mark_used(struct super_block *sb, u8 *bitmap, u64 bno)
static inline void apfs_chunk_mark_used(struct super_block *sb, char *bitmap,
u64 bno)
{
int index = bno & ((sb->s_blocksize * 8) - 1);
u8 *byte_p = bitmap + (index / 8);
u8 bit = 1 << index % 8;
int bitcount = sb->s_blocksize * 8;
*byte_p |= bit;
__set_bit_le(bno & (bitcount - 1), bitmap);
}
/**