X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_bitmap.c;h=7df42cd0066ed84aa29836948516dd130ac23b7b;hp=85c8c1d83c032dfcb834a29c3a0ab54765ad5d7e;hb=fe192b14d52d6c7d4722402686dcb553153916c3;hpb=f330fefa27f2c87f7dff414fe6227261327663b7 diff --git a/yaffs_bitmap.c b/yaffs_bitmap.c index 85c8c1d..7df42cd 100644 --- a/yaffs_bitmap.c +++ b/yaffs_bitmap.c @@ -17,65 +17,65 @@ * Chunk bitmap manipulations */ -static Y_INLINE __u8 *yaffs_block_bits(yaffs_dev_t *dev, int blk) +static inline u8 *yaffs_block_bits(struct yaffs_dev *dev, int blk) { if (blk < dev->internal_start_block || blk > dev->internal_end_block) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), - blk)); + yaffs_trace(YAFFS_TRACE_ERROR, + "BlockBits block %d is not valid", + blk); YBUG(); } return dev->chunk_bits + - (dev->chunk_bit_stride * (blk - dev->internal_start_block)); + (dev->chunk_bit_stride * (blk - dev->internal_start_block)); } -void yaffs_verify_chunk_bit_id(yaffs_dev_t *dev, int blk, int chunk) +void yaffs_verify_chunk_bit_id(struct yaffs_dev *dev, int blk, int chunk) { if (blk < dev->internal_start_block || blk > dev->internal_end_block || - chunk < 0 || chunk >= dev->param.chunks_per_block) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR), - blk, chunk)); + chunk < 0 || chunk >= dev->param.chunks_per_block) { + yaffs_trace(YAFFS_TRACE_ERROR, + "Chunk Id (%d:%d) invalid", + blk, chunk); YBUG(); } } -void yaffs_clear_chunk_bits(yaffs_dev_t *dev, int blk) +void yaffs_clear_chunk_bits(struct yaffs_dev *dev, int blk) { - __u8 *blk_bits = yaffs_block_bits(dev, blk); + u8 *blk_bits = yaffs_block_bits(dev, blk); memset(blk_bits, 0, dev->chunk_bit_stride); } -void yaffs_clear_chunk_bit(yaffs_dev_t *dev, int blk, int chunk) +void yaffs_clear_chunk_bit(struct yaffs_dev *dev, int blk, int chunk) { - __u8 *blk_bits = yaffs_block_bits(dev, blk); + u8 *blk_bits = yaffs_block_bits(dev, blk); yaffs_verify_chunk_bit_id(dev, blk, chunk); blk_bits[chunk / 8] &= ~(1 << (chunk & 7)); } -void yaffs_set_chunk_bit(yaffs_dev_t *dev, int blk, int chunk) +void yaffs_set_chunk_bit(struct yaffs_dev *dev, int blk, int chunk) { - __u8 *blk_bits = yaffs_block_bits(dev, blk); + u8 *blk_bits = yaffs_block_bits(dev, blk); yaffs_verify_chunk_bit_id(dev, blk, chunk); blk_bits[chunk / 8] |= (1 << (chunk & 7)); } -int yaffs_check_chunk_bit(yaffs_dev_t *dev, int blk, int chunk) +int yaffs_check_chunk_bit(struct yaffs_dev *dev, int blk, int chunk) { - __u8 *blk_bits = yaffs_block_bits(dev, blk); + u8 *blk_bits = yaffs_block_bits(dev, blk); yaffs_verify_chunk_bit_id(dev, blk, chunk); return (blk_bits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; } -int yaffs_still_some_chunks(yaffs_dev_t *dev, int blk) +int yaffs_still_some_chunks(struct yaffs_dev *dev, int blk) { - __u8 *blk_bits = yaffs_block_bits(dev, blk); + u8 *blk_bits = yaffs_block_bits(dev, blk); int i; for (i = 0; i < dev->chunk_bit_stride; i++) { if (*blk_bits) @@ -85,21 +85,14 @@ int yaffs_still_some_chunks(yaffs_dev_t *dev, int blk) return 0; } -int yaffs_count_chunk_bits(yaffs_dev_t *dev, int blk) +int yaffs_count_chunk_bits(struct yaffs_dev *dev, int blk) { - __u8 *blk_bits = yaffs_block_bits(dev, blk); + u8 *blk_bits = yaffs_block_bits(dev, blk); int i; int n = 0; - for (i = 0; i < dev->chunk_bit_stride; i++) { - __u8 x = *blk_bits; - while (x) { - if (x & 1) - n++; - x >>= 1; - } - blk_bits++; - } + for (i = 0; i < dev->chunk_bit_stride; i++, blk_bits++) + n += hweight8(*blk_bits); + return n; } -