Messages in this thread Patch in this message | | | From | Chao Yu <> | Subject | [f2fs-dev][PATCH 1/5] f2fs: add infra macro and sturct for inline dir | Date | Sat, 09 Aug 2014 10:46:01 +0800 |
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This patch defines macro and inline dentry struct for inline dir infrastructure.
Signed-off-by: Chao Yu <chao2.yu@samsung.com> --- include/linux/f2fs_fs.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h index 6ff0b0b..a79726b 100644 --- a/include/linux/f2fs_fs.h +++ b/include/linux/f2fs_fs.h @@ -423,6 +423,24 @@ struct f2fs_dentry_block { __u8 filename[NR_DENTRY_IN_BLOCK][F2FS_SLOT_LEN]; } __packed; +/* for inline dir */ +#define NR_INLINE_DENTRY (MAX_INLINE_DATA * BITS_PER_BYTE / \ + ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ + BITS_PER_BYTE + 1)) +#define INLINE_DENTRY_BITMAP_SIZE ((NR_INLINE_DENTRY + \ + BITS_PER_BYTE - 1) / BITS_PER_BYTE) +#define INLINE_RESERVED_SIZE (MAX_INLINE_DATA - \ + ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ + NR_INLINE_DENTRY + INLINE_DENTRY_BITMAP_SIZE)) + +/* inline directory entry structure */ +struct f2fs_inline_dentry { + __u8 dentry_bitmap[INLINE_DENTRY_BITMAP_SIZE]; + __u8 reserved[INLINE_RESERVED_SIZE]; + struct f2fs_dir_entry dentry[NR_INLINE_DENTRY]; + __u8 filename[NR_INLINE_DENTRY][F2FS_SLOT_LEN]; +} __packed; + /* file types used in inode_info->flags */ enum { F2FS_FT_UNKNOWN, -- 2.0.1.474.g72c7794
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