diff options
| -rw-r--r-- | fs/f2fs/dir.c | 64 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 3 | ||||
| -rw-r--r-- | fs/f2fs/inline.c | 39 |
3 files changed, 48 insertions, 58 deletions
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index e5439dd..23a5da8 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -706,23 +706,50 @@ bool f2fs_empty_dir(struct inode *dir) return true; } +bool f2fs_fill_dentries(struct dir_context *ctx, + const void *bitmap, struct f2fs_dir_entry *dentry, + __u8 (*filenames)[F2FS_SLOT_LEN], int max, + unsigned int start_pos) +{ + unsigned char d_type = DT_UNKNOWN; + unsigned int bit_pos; + struct f2fs_dir_entry *de = NULL; + + bit_pos = ((unsigned long)ctx->pos % max); + + while (bit_pos < max) { + bit_pos = find_next_bit_le(bitmap, max, bit_pos); + if (bit_pos >= max) + break; + + de = &dentry[bit_pos]; + if (de->file_type < F2FS_FT_MAX) + d_type = f2fs_filetype_table[de->file_type]; + else + d_type = DT_UNKNOWN; + if (!dir_emit(ctx, filenames[bit_pos], + le16_to_cpu(de->name_len), + le32_to_cpu(de->ino), d_type)) + return true; + + bit_pos += GET_DENTRY_SLOTS(le16_to_cpu(de->name_len)); + ctx->pos = start_pos + bit_pos; + } + return false; +} + static int f2fs_readdir(struct file *file, struct dir_context *ctx) { struct inode *inode = file_inode(file); unsigned long npages = dir_blocks(inode); - unsigned int bit_pos = 0; struct f2fs_dentry_block *dentry_blk = NULL; - struct f2fs_dir_entry *de = NULL; struct page *dentry_page = NULL; struct file_ra_state *ra = &file->f_ra; unsigned int n = ((unsigned long)ctx->pos / NR_DENTRY_IN_BLOCK); - unsigned char d_type = DT_UNKNOWN; if (f2fs_has_inline_dentry(inode)) return f2fs_read_inline_dir(file, ctx); - bit_pos = ((unsigned long)ctx->pos % NR_DENTRY_IN_BLOCK); - /* readahead for multi pages of dir */ if (npages - n > 1 && !ra_has_index(ra, n)) page_cache_sync_readahead(inode->i_mapping, ra, file, n, @@ -734,28 +761,13 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx) continue; dentry_blk = kmap(dentry_page); - while (bit_pos < NR_DENTRY_IN_BLOCK) { - bit_pos = find_next_bit_le(&dentry_blk->dentry_bitmap, - NR_DENTRY_IN_BLOCK, - bit_pos); - if (bit_pos >= NR_DENTRY_IN_BLOCK) - break; - - de = &dentry_blk->dentry[bit_pos]; - if (de->file_type < F2FS_FT_MAX) - d_type = f2fs_filetype_table[de->file_type]; - else - d_type = DT_UNKNOWN; - if (!dir_emit(ctx, - dentry_blk->filename[bit_pos], - le16_to_cpu(de->name_len), - le32_to_cpu(de->ino), d_type)) - goto stop; - bit_pos += GET_DENTRY_SLOTS(le16_to_cpu(de->name_len)); - ctx->pos = n * NR_DENTRY_IN_BLOCK + bit_pos; - } - bit_pos = 0; + if (f2fs_fill_dentries(ctx, + &dentry_blk->dentry_bitmap, dentry_blk->dentry, + dentry_blk->filename, + NR_DENTRY_IN_BLOCK, n * NR_DENTRY_IN_BLOCK)) + goto stop; + ctx->pos = (n + 1) * NR_DENTRY_IN_BLOCK; kunmap(dentry_page); f2fs_put_page(dentry_page, 1); diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 9c4c8d1..3b0f490 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1247,6 +1247,9 @@ extern unsigned char f2fs_filetype_table[F2FS_FT_MAX]; void set_de_type(struct f2fs_dir_entry *, struct inode *); struct f2fs_dir_entry *find_target_dentry(struct qstr *, int *, const void *, struct f2fs_dir_entry *, __u8 (*)[F2FS_SLOT_LEN]); +bool f2fs_fill_dentries(struct dir_context *, + const void *, struct f2fs_dir_entry *, + __u8 (*)[F2FS_SLOT_LEN], int, unsigned int); struct page *init_inode_metadata(struct inode *, struct inode *, const struct qstr *, struct page *); void update_parent_metadata(struct inode *, struct inode *, unsigned int); diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index 4219bf4..38a6aa7 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -517,49 +517,24 @@ bool f2fs_empty_inline_dir(struct inode *dir) int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx) { struct inode *inode = file_inode(file); - struct f2fs_sb_info *sbi = F2FS_I_SB(inode); - unsigned int bit_pos = 0; struct f2fs_inline_dentry *inline_dentry = NULL; - struct f2fs_dir_entry *de = NULL; struct page *ipage = NULL; - unsigned char d_type = DT_UNKNOWN; if (ctx->pos == NR_INLINE_DENTRY) return 0; - ipage = get_node_page(sbi, inode->i_ino); + ipage = get_node_page(F2FS_I_SB(inode), inode->i_ino); if (IS_ERR(ipage)) return PTR_ERR(ipage); - bit_pos = ((unsigned long)ctx->pos % NR_INLINE_DENTRY); - inline_dentry = inline_data_addr(ipage); - while (bit_pos < NR_INLINE_DENTRY) { - bit_pos = find_next_bit_le(&inline_dentry->dentry_bitmap, - NR_INLINE_DENTRY, - bit_pos); - if (bit_pos >= NR_INLINE_DENTRY) - break; - - de = &inline_dentry->dentry[bit_pos]; - if (de->file_type < F2FS_FT_MAX) - d_type = f2fs_filetype_table[de->file_type]; - else - d_type = DT_UNKNOWN; - - if (!dir_emit(ctx, - inline_dentry->filename[bit_pos], - le16_to_cpu(de->name_len), - le32_to_cpu(de->ino), d_type)) - goto out; - - bit_pos += GET_DENTRY_SLOTS(le16_to_cpu(de->name_len)); - ctx->pos = bit_pos; - } - ctx->pos = NR_INLINE_DENTRY; -out: - f2fs_put_page(ipage, 1); + if (!f2fs_fill_dentries(ctx, &inline_dentry->dentry_bitmap, + inline_dentry->dentry, + inline_dentry->filename, + NR_INLINE_DENTRY, 0)) + ctx->pos = NR_INLINE_DENTRY; + f2fs_put_page(ipage, 1); return 0; } |