zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/fs/xfs/xfs_dinode.h b/ap/os/linux/linux-3.4.x/fs/xfs/xfs_dinode.h
new file mode 100644
index 0000000..a372163
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/xfs/xfs_dinode.h
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef __XFS_DINODE_H__
+#define __XFS_DINODE_H__
+
+#define XFS_DINODE_MAGIC 0x494e /* 'IN' */
+#define XFS_DINODE_GOOD_VERSION(v) (((v) == 1 || (v) == 2))
+
+typedef struct xfs_timestamp {
+ __be32 t_sec; /* timestamp seconds */
+ __be32 t_nsec; /* timestamp nanoseconds */
+} xfs_timestamp_t;
+
+/*
+ * On-disk inode structure.
+ *
+ * This is just the header or "dinode core", the inode is expanded to fill a
+ * variable size the leftover area split into a data and an attribute fork.
+ * The format of the data and attribute fork depends on the format of the
+ * inode as indicated by di_format and di_aformat. To access the data and
+ * attribute use the XFS_DFORK_PTR, XFS_DFORK_DPTR, and XFS_DFORK_PTR macros
+ * below.
+ *
+ * There is a very similar struct icdinode in xfs_inode which matches the
+ * layout of the first 96 bytes of this structure, but is kept in native
+ * format instead of big endian.
+ */
+typedef struct xfs_dinode {
+ __be16 di_magic; /* inode magic # = XFS_DINODE_MAGIC */
+ __be16 di_mode; /* mode and type of file */
+ __u8 di_version; /* inode version */
+ __u8 di_format; /* format of di_c data */
+ __be16 di_onlink; /* old number of links to file */
+ __be32 di_uid; /* owner's user id */
+ __be32 di_gid; /* owner's group id */
+ __be32 di_nlink; /* number of links to file */
+ __be16 di_projid_lo; /* lower part of owner's project id */
+ __be16 di_projid_hi; /* higher part owner's project id */
+ __u8 di_pad[6]; /* unused, zeroed space */
+ __be16 di_flushiter; /* incremented on flush */
+ xfs_timestamp_t di_atime; /* time last accessed */
+ xfs_timestamp_t di_mtime; /* time last modified */
+ xfs_timestamp_t di_ctime; /* time created/inode modified */
+ __be64 di_size; /* number of bytes in file */
+ __be64 di_nblocks; /* # of direct & btree blocks used */
+ __be32 di_extsize; /* basic/minimum extent size for file */
+ __be32 di_nextents; /* number of extents in data fork */
+ __be16 di_anextents; /* number of extents in attribute fork*/
+ __u8 di_forkoff; /* attr fork offs, <<3 for 64b align */
+ __s8 di_aformat; /* format of attr fork's data */
+ __be32 di_dmevmask; /* DMIG event mask */
+ __be16 di_dmstate; /* DMIG state info */
+ __be16 di_flags; /* random flags, XFS_DIFLAG_... */
+ __be32 di_gen; /* generation number */
+
+ /* di_next_unlinked is the only non-core field in the old dinode */
+ __be32 di_next_unlinked;/* agi unlinked list ptr */
+} __attribute__((packed)) xfs_dinode_t;
+
+#define DI_MAX_FLUSH 0xffff
+
+/*
+ * The 32 bit link count in the inode theoretically maxes out at UINT_MAX.
+ * Since the pathconf interface is signed, we use 2^31 - 1 instead.
+ * The old inode format had a 16 bit link count, so its maximum is USHRT_MAX.
+ */
+#define XFS_MAXLINK ((1U << 31) - 1U)
+#define XFS_MAXLINK_1 65535U
+
+/*
+ * Values for di_format
+ */
+typedef enum xfs_dinode_fmt {
+ XFS_DINODE_FMT_DEV, /* xfs_dev_t */
+ XFS_DINODE_FMT_LOCAL, /* bulk data */
+ XFS_DINODE_FMT_EXTENTS, /* struct xfs_bmbt_rec */
+ XFS_DINODE_FMT_BTREE, /* struct xfs_bmdr_block */
+ XFS_DINODE_FMT_UUID /* uuid_t */
+} xfs_dinode_fmt_t;
+
+/*
+ * Inode minimum and maximum sizes.
+ */
+#define XFS_DINODE_MIN_LOG 8
+#define XFS_DINODE_MAX_LOG 11
+#define XFS_DINODE_MIN_SIZE (1 << XFS_DINODE_MIN_LOG)
+#define XFS_DINODE_MAX_SIZE (1 << XFS_DINODE_MAX_LOG)
+
+/*
+ * Inode size for given fs.
+ */
+#define XFS_LITINO(mp) \
+ ((int)(((mp)->m_sb.sb_inodesize) - sizeof(struct xfs_dinode)))
+
+#define XFS_BROOT_SIZE_ADJ \
+ (XFS_BTREE_LBLOCK_LEN - sizeof(xfs_bmdr_block_t))
+
+/*
+ * Inode data & attribute fork sizes, per inode.
+ */
+#define XFS_DFORK_Q(dip) ((dip)->di_forkoff != 0)
+#define XFS_DFORK_BOFF(dip) ((int)((dip)->di_forkoff << 3))
+
+#define XFS_DFORK_DSIZE(dip,mp) \
+ (XFS_DFORK_Q(dip) ? \
+ XFS_DFORK_BOFF(dip) : \
+ XFS_LITINO(mp))
+#define XFS_DFORK_ASIZE(dip,mp) \
+ (XFS_DFORK_Q(dip) ? \
+ XFS_LITINO(mp) - XFS_DFORK_BOFF(dip) : \
+ 0)
+#define XFS_DFORK_SIZE(dip,mp,w) \
+ ((w) == XFS_DATA_FORK ? \
+ XFS_DFORK_DSIZE(dip, mp) : \
+ XFS_DFORK_ASIZE(dip, mp))
+
+/*
+ * Return pointers to the data or attribute forks.
+ */
+#define XFS_DFORK_DPTR(dip) \
+ ((char *)(dip) + sizeof(struct xfs_dinode))
+#define XFS_DFORK_APTR(dip) \
+ (XFS_DFORK_DPTR(dip) + XFS_DFORK_BOFF(dip))
+#define XFS_DFORK_PTR(dip,w) \
+ ((w) == XFS_DATA_FORK ? XFS_DFORK_DPTR(dip) : XFS_DFORK_APTR(dip))
+
+#define XFS_DFORK_FORMAT(dip,w) \
+ ((w) == XFS_DATA_FORK ? \
+ (dip)->di_format : \
+ (dip)->di_aformat)
+#define XFS_DFORK_NEXTENTS(dip,w) \
+ ((w) == XFS_DATA_FORK ? \
+ be32_to_cpu((dip)->di_nextents) : \
+ be16_to_cpu((dip)->di_anextents))
+
+#define XFS_BUF_TO_DINODE(bp) ((xfs_dinode_t *)((bp)->b_addr))
+
+/*
+ * For block and character special files the 32bit dev_t is stored at the
+ * beginning of the data fork.
+ */
+static inline xfs_dev_t xfs_dinode_get_rdev(struct xfs_dinode *dip)
+{
+ return be32_to_cpu(*(__be32 *)XFS_DFORK_DPTR(dip));
+}
+
+static inline void xfs_dinode_put_rdev(struct xfs_dinode *dip, xfs_dev_t rdev)
+{
+ *(__be32 *)XFS_DFORK_DPTR(dip) = cpu_to_be32(rdev);
+}
+
+/*
+ * Values for di_flags
+ * There should be a one-to-one correspondence between these flags and the
+ * XFS_XFLAG_s.
+ */
+#define XFS_DIFLAG_REALTIME_BIT 0 /* file's blocks come from rt area */
+#define XFS_DIFLAG_PREALLOC_BIT 1 /* file space has been preallocated */
+#define XFS_DIFLAG_NEWRTBM_BIT 2 /* for rtbitmap inode, new format */
+#define XFS_DIFLAG_IMMUTABLE_BIT 3 /* inode is immutable */
+#define XFS_DIFLAG_APPEND_BIT 4 /* inode is append-only */
+#define XFS_DIFLAG_SYNC_BIT 5 /* inode is written synchronously */
+#define XFS_DIFLAG_NOATIME_BIT 6 /* do not update atime */
+#define XFS_DIFLAG_NODUMP_BIT 7 /* do not dump */
+#define XFS_DIFLAG_RTINHERIT_BIT 8 /* create with realtime bit set */
+#define XFS_DIFLAG_PROJINHERIT_BIT 9 /* create with parents projid */
+#define XFS_DIFLAG_NOSYMLINKS_BIT 10 /* disallow symlink creation */
+#define XFS_DIFLAG_EXTSIZE_BIT 11 /* inode extent size allocator hint */
+#define XFS_DIFLAG_EXTSZINHERIT_BIT 12 /* inherit inode extent size */
+#define XFS_DIFLAG_NODEFRAG_BIT 13 /* do not reorganize/defragment */
+#define XFS_DIFLAG_FILESTREAM_BIT 14 /* use filestream allocator */
+#define XFS_DIFLAG_REALTIME (1 << XFS_DIFLAG_REALTIME_BIT)
+#define XFS_DIFLAG_PREALLOC (1 << XFS_DIFLAG_PREALLOC_BIT)
+#define XFS_DIFLAG_NEWRTBM (1 << XFS_DIFLAG_NEWRTBM_BIT)
+#define XFS_DIFLAG_IMMUTABLE (1 << XFS_DIFLAG_IMMUTABLE_BIT)
+#define XFS_DIFLAG_APPEND (1 << XFS_DIFLAG_APPEND_BIT)
+#define XFS_DIFLAG_SYNC (1 << XFS_DIFLAG_SYNC_BIT)
+#define XFS_DIFLAG_NOATIME (1 << XFS_DIFLAG_NOATIME_BIT)
+#define XFS_DIFLAG_NODUMP (1 << XFS_DIFLAG_NODUMP_BIT)
+#define XFS_DIFLAG_RTINHERIT (1 << XFS_DIFLAG_RTINHERIT_BIT)
+#define XFS_DIFLAG_PROJINHERIT (1 << XFS_DIFLAG_PROJINHERIT_BIT)
+#define XFS_DIFLAG_NOSYMLINKS (1 << XFS_DIFLAG_NOSYMLINKS_BIT)
+#define XFS_DIFLAG_EXTSIZE (1 << XFS_DIFLAG_EXTSIZE_BIT)
+#define XFS_DIFLAG_EXTSZINHERIT (1 << XFS_DIFLAG_EXTSZINHERIT_BIT)
+#define XFS_DIFLAG_NODEFRAG (1 << XFS_DIFLAG_NODEFRAG_BIT)
+#define XFS_DIFLAG_FILESTREAM (1 << XFS_DIFLAG_FILESTREAM_BIT)
+
+#ifdef CONFIG_XFS_RT
+#define XFS_IS_REALTIME_INODE(ip) ((ip)->i_d.di_flags & XFS_DIFLAG_REALTIME)
+#else
+#define XFS_IS_REALTIME_INODE(ip) (0)
+#endif
+
+#define XFS_DIFLAG_ANY \
+ (XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \
+ XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \
+ XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \
+ XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS | XFS_DIFLAG_EXTSIZE | \
+ XFS_DIFLAG_EXTSZINHERIT | XFS_DIFLAG_NODEFRAG | XFS_DIFLAG_FILESTREAM)
+
+#endif /* __XFS_DINODE_H__ */