diff options
Diffstat (limited to 'kernel/fs/f2fs/segment.h')
| -rw-r--r-- | kernel/fs/f2fs/segment.h | 63 |
1 files changed, 23 insertions, 40 deletions
diff --git a/kernel/fs/f2fs/segment.h b/kernel/fs/f2fs/segment.h index 85d7fa751..ee44d346e 100644 --- a/kernel/fs/f2fs/segment.h +++ b/kernel/fs/f2fs/segment.h @@ -9,6 +9,7 @@ * published by the Free Software Foundation. */ #include <linux/blkdev.h> +#include <linux/backing-dev.h> /* constant macro */ #define NULL_SEGNO ((unsigned int)(~0)) @@ -136,10 +137,12 @@ enum { /* * BG_GC means the background cleaning job. * FG_GC means the on-demand cleaning job. + * FORCE_FG_GC means on-demand cleaning job in background. */ enum { BG_GC = 0, - FG_GC + FG_GC, + FORCE_FG_GC, }; /* for a function parameter to select a victim segment */ @@ -163,6 +166,7 @@ struct seg_entry { */ unsigned short ckpt_valid_blocks; unsigned char *ckpt_valid_map; + unsigned char *discard_map; unsigned char type; /* segment type like CURSEG_XXX_TYPE */ unsigned long long mtime; /* modification time of the segment */ }; @@ -175,6 +179,15 @@ struct segment_allocation { void (*allocate_segment)(struct f2fs_sb_info *, int, bool); }; +/* + * this value is set in page as a private data which indicate that + * the page is atomically written, and it is in inmem_pages list. + */ +#define ATOMIC_WRITTEN_PAGE 0x0000ffff + +#define IS_ATOMIC_WRITTEN_PAGE(page) \ + (page_private(page) == (unsigned long)ATOMIC_WRITTEN_PAGE) + struct inmem_pages { struct list_head list; struct page *page; @@ -553,16 +566,15 @@ static inline unsigned short curseg_blkoff(struct f2fs_sb_info *sbi, int type) return curseg->next_blkoff; } -#ifdef CONFIG_F2FS_CHECK_FS static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno) { - BUG_ON(segno > TOTAL_SEGS(sbi) - 1); + f2fs_bug_on(sbi, segno > TOTAL_SEGS(sbi) - 1); } static inline void verify_block_addr(struct f2fs_sb_info *sbi, block_t blk_addr) { - BUG_ON(blk_addr < SEG0_BLKADDR(sbi)); - BUG_ON(blk_addr >= MAX_BLKADDR(sbi)); + f2fs_bug_on(sbi, blk_addr < SEG0_BLKADDR(sbi) + || blk_addr >= MAX_BLKADDR(sbi)); } /* @@ -571,16 +583,11 @@ static inline void verify_block_addr(struct f2fs_sb_info *sbi, block_t blk_addr) static inline void check_block_count(struct f2fs_sb_info *sbi, int segno, struct f2fs_sit_entry *raw_sit) { +#ifdef CONFIG_F2FS_CHECK_FS bool is_valid = test_bit_le(0, raw_sit->valid_map) ? true : false; int valid_blocks = 0; int cur_pos = 0, next_pos; - /* check segment usage */ - BUG_ON(GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg); - - /* check boundary of a given segment number */ - BUG_ON(segno > TOTAL_SEGS(sbi) - 1); - /* check bitmap with valid block count */ do { if (is_valid) { @@ -596,35 +603,11 @@ static inline void check_block_count(struct f2fs_sb_info *sbi, is_valid = !is_valid; } while (cur_pos < sbi->blocks_per_seg); BUG_ON(GET_SIT_VBLOCKS(raw_sit) != valid_blocks); -} -#else -static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno) -{ - if (segno > TOTAL_SEGS(sbi) - 1) - set_sbi_flag(sbi, SBI_NEED_FSCK); -} - -static inline void verify_block_addr(struct f2fs_sb_info *sbi, block_t blk_addr) -{ - if (blk_addr < SEG0_BLKADDR(sbi) || blk_addr >= MAX_BLKADDR(sbi)) - set_sbi_flag(sbi, SBI_NEED_FSCK); -} - -/* - * Summary block is always treated as an invalid block - */ -static inline void check_block_count(struct f2fs_sb_info *sbi, - int segno, struct f2fs_sit_entry *raw_sit) -{ - /* check segment usage */ - if (GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg) - set_sbi_flag(sbi, SBI_NEED_FSCK); - - /* check boundary of a given segment number */ - if (segno > TOTAL_SEGS(sbi) - 1) - set_sbi_flag(sbi, SBI_NEED_FSCK); -} #endif + /* check segment usage, and check boundary of a given segment number */ + f2fs_bug_on(sbi, GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg + || segno > TOTAL_SEGS(sbi) - 1); +} static inline pgoff_t current_sit_addr(struct f2fs_sb_info *sbi, unsigned int start) @@ -713,7 +696,7 @@ static inline unsigned int max_hw_blocks(struct f2fs_sb_info *sbi) */ static inline int nr_pages_to_skip(struct f2fs_sb_info *sbi, int type) { - if (sbi->sb->s_bdi->dirty_exceeded) + if (sbi->sb->s_bdi->wb.dirty_exceeded) return 0; if (type == DATA) |