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Zach BrownandZach Brown
0a47e8f936
The radix allocator no longer uses the block visited bit because it maintains its own much richer private per-block data stored off the priv pointer. Signed-off-by: Zach Brown <zab@versity.com> This reverts commit 294b6d1f79e6d00ba60e26960c764d10c7f4b8a5.
59 lines
2.1 KiB
C
59 lines
2.1 KiB
C
#ifndef _SCOUTFS_BLOCK_H_
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#define _SCOUTFS_BLOCK_H_
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struct scoutfs_block_writer {
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spinlock_t lock;
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struct list_head dirty_list;
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u64 nr_dirty_blocks;
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};
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struct scoutfs_block {
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u64 blkno;
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void *data;
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void *priv;
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};
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__le32 scoutfs_block_calc_crc(struct scoutfs_block_header *hdr, u32 size);
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bool scoutfs_block_valid_crc(struct scoutfs_block_header *hdr, u32 size);
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bool scoutfs_block_valid_ref(struct super_block *sb,
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struct scoutfs_block_header *hdr,
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__le64 seq, __le64 blkno);
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struct scoutfs_block *scoutfs_block_create(struct super_block *sb, u64 blkno);
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struct scoutfs_block *scoutfs_block_read(struct super_block *sb, u64 blkno);
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void scoutfs_block_invalidate(struct super_block *sb, struct scoutfs_block *bl);
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bool scoutfs_block_consistent_ref(struct super_block *sb,
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struct scoutfs_block *bl,
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__le64 seq, __le64 blkno, u32 magic);
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void scoutfs_block_put(struct super_block *sb, struct scoutfs_block *bl);
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void scoutfs_block_writer_init(struct super_block *sb,
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struct scoutfs_block_writer *wri);
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void scoutfs_block_writer_mark_dirty(struct super_block *sb,
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struct scoutfs_block_writer *wri,
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struct scoutfs_block *bl);
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bool scoutfs_block_writer_is_dirty(struct super_block *sb,
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struct scoutfs_block *bl);
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int scoutfs_block_writer_write(struct super_block *sb,
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struct scoutfs_block_writer *wri);
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void scoutfs_block_writer_forget_all(struct super_block *sb,
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struct scoutfs_block_writer *wri);
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void scoutfs_block_writer_forget(struct super_block *sb,
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struct scoutfs_block_writer *wri,
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struct scoutfs_block *bl);
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bool scoutfs_block_writer_has_dirty(struct super_block *sb,
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struct scoutfs_block_writer *wri);
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u64 scoutfs_block_writer_dirty_bytes(struct super_block *sb,
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struct scoutfs_block_writer *wri);
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int scoutfs_block_read_sm(struct super_block *sb, u64 blkno,
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struct scoutfs_block_header *hdr, size_t len,
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__le32 *blk_crc);
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int scoutfs_block_write_sm(struct super_block *sb, u64 blkno,
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struct scoutfs_block_header *hdr, size_t len);
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int scoutfs_block_setup(struct super_block *sb);
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void scoutfs_block_destroy(struct super_block *sb);
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#endif
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