diff options
Diffstat (limited to 'fs/f2fs/segment.c')
| -rw-r--r-- | fs/f2fs/segment.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 71f8913aa5f9..54a3e398d1ea 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -873,13 +873,14 @@ void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi) mutex_unlock(&dirty_i->seglist_lock); } -int f2fs_disable_cp_again(struct f2fs_sb_info *sbi) +block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi) { - struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); int ovp_hole_segs = (overprovision_segments(sbi) - reserved_segments(sbi)); block_t ovp_holes = ovp_hole_segs << sbi->log_blocks_per_seg; + struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); block_t holes[2] = {0, 0}; /* DATA and NODE */ + block_t unusable; struct seg_entry *se; unsigned int segno; @@ -893,7 +894,17 @@ int f2fs_disable_cp_again(struct f2fs_sb_info *sbi) } mutex_unlock(&dirty_i->seglist_lock); - if (holes[DATA] > ovp_holes || holes[NODE] > ovp_holes) + unusable = holes[DATA] > holes[NODE] ? holes[DATA] : holes[NODE]; + if (unusable > ovp_holes) + return unusable - ovp_holes; + return 0; +} + +int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable) +{ + int ovp_hole_segs = + (overprovision_segments(sbi) - reserved_segments(sbi)); + if (unusable > F2FS_OPTION(sbi).unusable_cap) return -EAGAIN; if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK) && dirty_segments(sbi) > ovp_hole_segs) |