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charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net When we try to defrag a file, its data blocks may mess with others if there are lots of concurrent writes. This causes the file is still fragmented after defrag. So It's better to isolate defrag writes from others. Signed-off-by: Weichao Guo Signed-off-by: Chao Yu --- fs/f2fs/debug.c | 4 ++++ fs/f2fs/f2fs.h | 2 ++ fs/f2fs/file.c | 5 +++++ fs/f2fs/segment.c | 7 +++++++ fs/f2fs/segment.h | 5 ++++- 5 files changed, 22 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c index c014715..d85dc17 100644 --- a/fs/f2fs/debug.c +++ b/fs/f2fs/debug.c @@ -442,6 +442,10 @@ static int stat_show(struct seq_file *s, void *v) si->curseg[CURSEG_ALL_DATA_ATGC], si->cursec[CURSEG_ALL_DATA_ATGC], si->curzone[CURSEG_ALL_DATA_ATGC]); + seq_printf(s, " - DEFRAG data: %8d %8d %8d\n", + si->curseg[CURSEG_COLD_DATA_DEFRAG], + si->cursec[CURSEG_COLD_DATA_DEFRAG], + si->curzone[CURSEG_COLD_DATA_DEFRAG]); seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n", si->main_area_segs - si->dirty_count - si->prefree_count - si->free_segs, diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 3c7cdb7..5f9a185 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -760,6 +760,7 @@ enum { FI_COMPRESS_RELEASED, /* compressed blocks were released */ FI_ALIGNED_WRITE, /* enable aligned write */ FI_COW_FILE, /* indicate COW file */ + FI_DEFRAG_WRITE, /* indicate defragment writes need consective blkaddrs*/ FI_MAX, /* max flag, never be used */ }; @@ -1017,6 +1018,7 @@ enum { CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG, /* pinned file that needs consecutive block address */ CURSEG_ALL_DATA_ATGC, /* SSR alloctor in hot/warm/cold data area */ + CURSEG_COLD_DATA_DEFRAG,/* used for defragment which needs consective blkaddrs */ NO_CHECK_TYPE, /* number of persistent & inmem log */ }; diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index ce4905a0..f104e2e 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -2626,7 +2626,12 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi, clear_inode_flag(inode, FI_SKIP_WRITES); + set_inode_flag(inode, FI_DEFRAG_WRITE); + f2fs_lock_op(sbi); + f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_DEFRAG, false); + f2fs_unlock_op(sbi); err = filemap_fdatawrite(inode->i_mapping); + clear_inode_flag(inode, FI_DEFRAG_WRITE); if (err) goto out; } diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 0de21f8..17e7d14 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -2749,6 +2749,7 @@ static void __f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi, int type) void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi) { __f2fs_save_inmem_curseg(sbi, CURSEG_COLD_DATA_PINNED); + __f2fs_save_inmem_curseg(sbi, CURSEG_COLD_DATA_DEFRAG); if (sbi->am.atgc_enabled) __f2fs_save_inmem_curseg(sbi, CURSEG_ALL_DATA_ATGC); @@ -2774,6 +2775,7 @@ static void __f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi, int type) void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi) { __f2fs_restore_inmem_curseg(sbi, CURSEG_COLD_DATA_PINNED); + __f2fs_restore_inmem_curseg(sbi, CURSEG_COLD_DATA_DEFRAG); if (sbi->am.atgc_enabled) __f2fs_restore_inmem_curseg(sbi, CURSEG_ALL_DATA_ATGC); @@ -3161,6 +3163,9 @@ static int __get_segment_type_6(struct f2fs_io_info *fio) if (is_inode_flag_set(inode, FI_ALIGNED_WRITE)) return CURSEG_COLD_DATA_PINNED; + if (is_inode_flag_set(inode, FI_DEFRAG_WRITE)) + return CURSEG_COLD_DATA_DEFRAG; + if (page_private_gcing(fio->page)) { if (fio->sbi->am.atgc_enabled && (fio->io_type == FS_DATA_IO) && @@ -4332,6 +4337,8 @@ static int build_curseg(struct f2fs_sb_info *sbi) array[i].seg_type = CURSEG_COLD_DATA; else if (i == CURSEG_ALL_DATA_ATGC) array[i].seg_type = CURSEG_COLD_DATA; + else if (i == CURSEG_COLD_DATA_DEFRAG) + array[i].seg_type = CURSEG_COLD_DATA; array[i].segno = NULL_SEGNO; array[i].next_blkoff = 0; array[i].inited = false; diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index d1d6376..75e2aa8 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -44,7 +44,8 @@ static inline void sanity_check_seg_type(struct f2fs_sb_info *sbi, ((seg) == CURSEG_I(sbi, CURSEG_WARM_NODE)->segno) || \ ((seg) == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno) || \ ((seg) == CURSEG_I(sbi, CURSEG_COLD_DATA_PINNED)->segno) || \ - ((seg) == CURSEG_I(sbi, CURSEG_ALL_DATA_ATGC)->segno)) + ((seg) == CURSEG_I(sbi, CURSEG_ALL_DATA_ATGC)->segno) || \ + ((seg) == CURSEG_I(sbi, CURSEG_COLD_DATA_DEFRAG)->segno)) #define IS_CURSEC(sbi, secno) \ (((secno) == CURSEG_I(sbi, CURSEG_HOT_DATA)->segno / \ @@ -62,6 +63,8 @@ static inline void sanity_check_seg_type(struct f2fs_sb_info *sbi, ((secno) == CURSEG_I(sbi, CURSEG_COLD_DATA_PINNED)->segno / \ (sbi)->segs_per_sec) || \ ((secno) == CURSEG_I(sbi, CURSEG_ALL_DATA_ATGC)->segno / \ + (sbi)->segs_per_sec) || \ + ((secno) == CURSEG_I(sbi, CURSEG_COLD_DATA_DEFRAG)->segno / \ (sbi)->segs_per_sec)) #define MAIN_BLKADDR(sbi) \ -- 2.7.4 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel