[PATCH 15/27] xfs: reshuffle dir2 definitions around for userspace

Dave Chinner
2013-06-12T10:23:27Z

From: Dave Chinner <dchinner@redhat.com>

Many of the definitions within xfs_dir2_priv.h are needed in
userspace outside libxfs. Definitions within xfs_dir2_priv.h are
wholly contained within libxfs, so we need to shuffle some of the
definitions around to keep consistency across files shared between
user and kernel space.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/xfs_dir2.h | 71 ++++++++++++++++++++++++++++++++++++++++++++++
fs/xfs/xfs_dir2_data.c | 1 +
fs/xfs/xfs_dir2_format.h | 24 ----------------
fs/xfs/xfs_dir2_leaf.c | 1 +
fs/xfs/xfs_dir2_node.c | 1 +
fs/xfs/xfs_dir2_priv.h | 31 --------------------
fs/xfs/xfs_dir2_sf.c | 4 +--
fs/xfs/xfs_file.c | 3 +-
fs/xfs/xfs_log_recover.c | 2 +-
9 files changed, 78 insertions(+), 60 deletions(-)

diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index e937d99..df3e20b 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -23,10 +23,35 @@ struct xfs_da_args;
struct xfs_inode;
struct xfs_mount;
struct xfs_trans;
+struct xfs_dir2_sf_hdr;
+struct xfs_dir2_sf_entry;
+struct xfs_dir2_data_hdr;
+struct xfs_dir2_data_entry;
+struct xfs_dir2_data_unused;

extern struct xfs_name xfs_name_dotdot;

/*
+ * Directory type definitions
+ */
+
+/* Byte offset in data block and shortform entry. */
+typedef __uint16_t xfs_dir2_data_off_t;
+#define NULLDATAOFF 0xffffU
+typedef uint xfs_dir2_data_aoff_t; /* argument form */
+
+/* Offset in data space of a data entry. */
+typedef __uint32_t xfs_dir2_dataptr_t;
+#define XFS_DIR2_MAX_DATAPTR ((xfs_dir2_dataptr_t)0xffffffff)
+#define XFS_DIR2_NULL_DATAPTR ((xfs_dir2_dataptr_t)0)
+
+/* Byte offset in a directory. */
+typedef xfs_off_t xfs_dir2_off_t;
+
+/* Directory block number (logical dirblk in file) */
+typedef __uint32_t xfs_dir2_db_t;
+
+/*
* Generic directory interface routines
*/
extern void xfs_dir_startup(void);
@@ -57,4 +82,50 @@ extern int xfs_dir_canenter(struct xfs_trans *tp, struct xfs_inode *dp,
*/
extern int xfs_dir2_sf_to_block(struct xfs_da_args *args);

+/*
+ * Direct call on directory open, before entering the readdir code.
+ */
+extern int xfs_dir3_data_readahead(struct xfs_trans *tp, struct xfs_inode *dp,
+ xfs_dablk_t bno, xfs_daddr_t mapped_bno);
+
+/*
+ * Interface routines used by userspace utilities
+ */
+extern xfs_ino_t xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr *sfp);
+extern void xfs_dir2_sf_put_parent_ino(struct xfs_dir2_sf_hdr *sfp,
+ xfs_ino_t ino);
+extern xfs_ino_t xfs_dir2_sfe_get_ino(struct xfs_dir2_sf_hdr *sfp,
+ struct xfs_dir2_sf_entry *sfep);
+extern void xfs_dir2_sfe_put_ino( struct xfs_dir2_sf_hdr *,
+ struct xfs_dir2_sf_entry *sfep, xfs_ino_t ino);
+
+extern int xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
+extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
+extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
+ struct xfs_buf *bp);
+
+extern void xfs_dir2_data_freescan(struct xfs_mount *mp,
+ struct xfs_dir2_data_hdr *hdr, int *loghead);
+extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_buf *bp,
+ struct xfs_dir2_data_entry *dep);
+extern void xfs_dir2_data_log_header(struct xfs_trans *tp,
+ struct xfs_buf *bp);
+extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_buf *bp,
+ struct xfs_dir2_data_unused *dup);
+extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_buf *bp,
+ xfs_dir2_data_aoff_t offset, xfs_dir2_data_aoff_t len,
+ int *needlogp, int *needscanp);
+extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp,
+ struct xfs_dir2_data_unused *dup, xfs_dir2_data_aoff_t offset,
+ xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp);
+
+extern struct xfs_dir2_data_free *xfs_dir2_data_freefind(
+ struct xfs_dir2_data_hdr *hdr, struct xfs_dir2_data_unused *dup);
+
+extern const struct xfs_buf_ops xfs_dir3_block_buf_ops;
+extern const struct xfs_buf_ops xfs_dir3_leafn_buf_ops;
+extern const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops;
+extern const struct xfs_buf_ops xfs_dir3_free_buf_ops;
+extern const struct xfs_buf_ops xfs_dir3_data_buf_ops;
+
#endif /* __XFS_DIR2_H__ */
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index c293023..465027b 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -28,6 +28,7 @@
#include "xfs_bmap_btree.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
+#include "xfs_dir2.h"
#include "xfs_dir2_format.h"
#include "xfs_dir2_priv.h"
#include "xfs_error.h"
diff --git a/fs/xfs/xfs_dir2_format.h b/fs/xfs/xfs_dir2_format.h
index 7826782..b125a8b 100644
--- a/fs/xfs/xfs_dir2_format.h
+++ b/fs/xfs/xfs_dir2_format.h
@@ -69,36 +69,12 @@
#define XFS_DIR3_FREE_MAGIC 0x58444633 /* XDF3: free index blocks */

/*
- * Byte offset in data block and shortform entry.
- */
-typedef __uint16_t xfs_dir2_data_off_t;
-#define NULLDATAOFF 0xffffU
-typedef uint xfs_dir2_data_aoff_t; /* argument form */
-
-/*
* Normalized offset (in a data block) of the entry, really xfs_dir2_data_off_t.
* Only need 16 bits, this is the byte offset into the single block form.
*/
typedef struct { __uint8_t i[2]; } __arch_pack xfs_dir2_sf_off_t;

/*
- * Offset in data space of a data entry.
- */
-typedef __uint32_t xfs_dir2_dataptr_t;
-#define XFS_DIR2_MAX_DATAPTR ((xfs_dir2_dataptr_t)0xffffffff)
-#define XFS_DIR2_NULL_DATAPTR ((xfs_dir2_dataptr_t)0)
-
-/*
- * Byte offset in a directory.
- */
-typedef xfs_off_t xfs_dir2_off_t;
-
-/*
- * Directory block number (logical dirblk in file)
- */
-typedef __uint32_t xfs_dir2_db_t;
-
-/*
* Inode number stored as 8 8-bit values.
*/
typedef struct { __uint8_t i[8]; } xfs_dir2_ino8_t;
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index e1aed21..c60e3a7 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -30,6 +30,7 @@
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_bmap.h"
+#include "xfs_dir2.h"
#include "xfs_dir2_format.h"
#include "xfs_dir2_priv.h"
#include "xfs_error.h"
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 2226a00..7b448f5 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -29,6 +29,7 @@
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_bmap.h"
+#include "xfs_dir2.h"
#include "xfs_dir2_format.h"
#include "xfs_dir2_priv.h"
#include "xfs_error.h"
diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h
index 1f949df..134e19e 100644
--- a/fs/xfs/xfs_dir2_priv.h
+++ b/fs/xfs/xfs_dir2_priv.h
@@ -20,18 +20,12 @@

/* xfs_dir2.c */
extern int xfs_dir_ino_validate(struct xfs_mount *mp, xfs_ino_t ino);
-extern int xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
-extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
xfs_dir2_db_t *dbp);
-extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
- struct xfs_buf *bp);
extern int xfs_dir_cilookup_result(struct xfs_da_args *args,
const unsigned char *name, int len);

/* xfs_dir2_block.c */
-extern const struct xfs_buf_ops xfs_dir3_block_buf_ops;
-
extern int xfs_dir3_block_read(struct xfs_trans *tp, struct xfs_inode *dp,
struct xfs_buf **bpp);
extern int xfs_dir2_block_addname(struct xfs_da_args *args);
@@ -50,39 +44,17 @@ extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args,
#define xfs_dir3_data_check(dp,bp)
#endif

-extern const struct xfs_buf_ops xfs_dir3_data_buf_ops;
-extern const struct xfs_buf_ops xfs_dir3_free_buf_ops;
-
extern int __xfs_dir3_data_check(struct xfs_inode *dp, struct xfs_buf *bp);
extern int xfs_dir3_data_read(struct xfs_trans *tp, struct xfs_inode *dp,
xfs_dablk_t bno, xfs_daddr_t mapped_bno, struct xfs_buf **bpp);
-extern int xfs_dir3_data_readahead(struct xfs_trans *tp, struct xfs_inode *dp,
- xfs_dablk_t bno, xfs_daddr_t mapped_bno);

extern struct xfs_dir2_data_free *
xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr,
struct xfs_dir2_data_unused *dup, int *loghead);
-extern void xfs_dir2_data_freescan(struct xfs_mount *mp,
- struct xfs_dir2_data_hdr *hdr, int *loghead);
extern int xfs_dir3_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno,
struct xfs_buf **bpp);
-extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_buf *bp,
- struct xfs_dir2_data_entry *dep);
-extern void xfs_dir2_data_log_header(struct xfs_trans *tp,
- struct xfs_buf *bp);
-extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_buf *bp,
- struct xfs_dir2_data_unused *dup);
-extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_buf *bp,
- xfs_dir2_data_aoff_t offset, xfs_dir2_data_aoff_t len,
- int *needlogp, int *needscanp);
-extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp,
- struct xfs_dir2_data_unused *dup, xfs_dir2_data_aoff_t offset,
- xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp);

/* xfs_dir2_leaf.c */
-extern const struct xfs_buf_ops xfs_dir3_leaf1_buf_ops;
-extern const struct xfs_buf_ops xfs_dir3_leafn_buf_ops;
-
extern int xfs_dir3_leafn_read(struct xfs_trans *tp, struct xfs_inode *dp,
xfs_dablk_t fbno, xfs_daddr_t mappedbno, struct xfs_buf **bpp);
extern int xfs_dir2_block_to_leaf(struct xfs_da_args *args,
@@ -146,9 +118,6 @@ extern int xfs_dir2_free_read(struct xfs_trans *tp, struct xfs_inode *dp,
xfs_dablk_t fbno, struct xfs_buf **bpp);

/* xfs_dir2_sf.c */
-extern xfs_ino_t xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr *sfp);
-extern xfs_ino_t xfs_dir2_sfe_get_ino(struct xfs_dir2_sf_hdr *sfp,
- struct xfs_dir2_sf_entry *sfep);
extern int xfs_dir2_block_sfsize(struct xfs_inode *dp,
struct xfs_dir2_data_hdr *block, struct xfs_dir2_sf_hdr *sfhp);
extern int xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_buf *bp,
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index f24ce90..40bf17e 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -95,7 +95,7 @@ xfs_dir2_sf_get_parent_ino(
return xfs_dir2_sf_get_ino(hdr, &hdr->parent);
}

-static void
+void
xfs_dir2_sf_put_parent_ino(
struct xfs_dir2_sf_hdr *hdr,
xfs_ino_t ino)
@@ -123,7 +123,7 @@ xfs_dir2_sfe_get_ino(
return xfs_dir2_sf_get_ino(hdr, xfs_dir2_sfe_inop(sfep));
}

-static void
+void
xfs_dir2_sfe_put_ino(
struct xfs_dir2_sf_hdr *hdr,
struct xfs_dir2_sf_entry *sfep,
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index a5f2042..5190689 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -31,8 +31,7 @@
#include "xfs_error.h"
#include "xfs_vnodeops.h"
#include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
-#include "xfs_dir2_priv.h"
+#include "xfs_dir2.h"
#include "xfs_ioctl.h"
#include "xfs_trace.h"

diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 6fcc910a..3d3ff44 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -50,8 +50,8 @@
/* Need all the magic numbers and buffer ops structures from these headers */
#include "xfs_symlink.h"
#include "xfs_da_btree.h"
+#include "xfs_dir2.h"
#include "xfs_dir2_format.h"
-#include "xfs_dir2_priv.h"
#include "xfs_attr_leaf.h"
#include "xfs_attr_remote.h"

--
1.7.10.4