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authorChristoph Hellwig <hch@lst.de>2019-11-09 01:52:06 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2019-11-11 03:54:19 +0300
commita39f089a25e75c3d17b955d8eb8bc781f23364f3 (patch)
treeb49604d018c4a2cb67f2108f20832369823422c2 /fs/xfs/libxfs
parent7f6bcf7c29410747fb05258870bd2254855af9c2 (diff)
downloadlinux-a39f089a25e75c3d17b955d8eb8bc781f23364f3.tar.xz
xfs: move incore structures out of xfs_da_format.h
Move the abstract in-memory version of various btree block headers out of xfs_da_format.h as they aren't on-disk formats. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/libxfs')
-rw-r--r--fs/xfs/libxfs/xfs_attr_leaf.h23
-rw-r--r--fs/xfs/libxfs/xfs_da_btree.h13
-rw-r--r--fs/xfs/libxfs/xfs_da_format.c1
-rw-r--r--fs/xfs/libxfs/xfs_da_format.h57
-rw-r--r--fs/xfs/libxfs/xfs_dir2.h2
-rw-r--r--fs/xfs/libxfs/xfs_dir2_priv.h19
6 files changed, 58 insertions, 57 deletions
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.h b/fs/xfs/libxfs/xfs_attr_leaf.h
index bb0880057ee3..16208a7743df 100644
--- a/fs/xfs/libxfs/xfs_attr_leaf.h
+++ b/fs/xfs/libxfs/xfs_attr_leaf.h
@@ -17,6 +17,29 @@ struct xfs_inode;
struct xfs_trans;
/*
+ * Incore version of the attribute leaf header.
+ */
+struct xfs_attr3_icleaf_hdr {
+ uint32_t forw;
+ uint32_t back;
+ uint16_t magic;
+ uint16_t count;
+ uint16_t usedbytes;
+ /*
+ * Firstused is 32-bit here instead of 16-bit like the on-disk variant
+ * to support maximum fsb size of 64k without overflow issues throughout
+ * the attr code. Instead, the overflow condition is handled on
+ * conversion to/from disk.
+ */
+ uint32_t firstused;
+ __u8 holes;
+ struct {
+ uint16_t base;
+ uint16_t size;
+ } freemap[XFS_ATTR_LEAF_MAPSIZE];
+};
+
+/*
* Used to keep a list of "remote value" extents when unlinking an inode.
*/
typedef struct xfs_attr_inactive_list {
diff --git a/fs/xfs/libxfs/xfs_da_btree.h b/fs/xfs/libxfs/xfs_da_btree.h
index ae0bbd20d9ca..02f7a21ab3a5 100644
--- a/fs/xfs/libxfs/xfs_da_btree.h
+++ b/fs/xfs/libxfs/xfs_da_btree.h
@@ -125,6 +125,19 @@ typedef struct xfs_da_state {
} xfs_da_state_t;
/*
+ * In-core version of the node header to abstract the differences in the v2 and
+ * v3 disk format of the headers. Callers need to convert to/from disk format as
+ * appropriate.
+ */
+struct xfs_da3_icnode_hdr {
+ uint32_t forw;
+ uint32_t back;
+ uint16_t magic;
+ uint16_t count;
+ uint16_t level;
+};
+
+/*
* Utility macros to aid in logging changed structure fields.
*/
#define XFS_DA_LOGOFF(BASE, ADDR) ((char *)(ADDR) - (char *)(BASE))
diff --git a/fs/xfs/libxfs/xfs_da_format.c b/fs/xfs/libxfs/xfs_da_format.c
index b1ae572496b6..31bb250c1899 100644
--- a/fs/xfs/libxfs/xfs_da_format.c
+++ b/fs/xfs/libxfs/xfs_da_format.c
@@ -13,6 +13,7 @@
#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_dir2.h"
+#include "xfs_dir2_priv.h"
/*
* Shortform directory ops
diff --git a/fs/xfs/libxfs/xfs_da_format.h b/fs/xfs/libxfs/xfs_da_format.h
index 6702a0849f75..3dee33043e09 100644
--- a/fs/xfs/libxfs/xfs_da_format.h
+++ b/fs/xfs/libxfs/xfs_da_format.h
@@ -94,19 +94,6 @@ struct xfs_da3_intnode {
};
/*
- * In-core version of the node header to abstract the differences in the v2 and
- * v3 disk format of the headers. Callers need to convert to/from disk format as
- * appropriate.
- */
-struct xfs_da3_icnode_hdr {
- uint32_t forw;
- uint32_t back;
- uint16_t magic;
- uint16_t count;
- uint16_t level;
-};
-
-/*
* Directory version 2.
*
* There are 4 possible formats:
@@ -434,14 +421,6 @@ struct xfs_dir3_leaf_hdr {
__be32 pad; /* 64 bit alignment */
};
-struct xfs_dir3_icleaf_hdr {
- uint32_t forw;
- uint32_t back;
- uint16_t magic;
- uint16_t count;
- uint16_t stale;
-};
-
/*
* Leaf block entry.
*/
@@ -521,19 +500,6 @@ struct xfs_dir3_free {
#define XFS_DIR3_FREE_CRC_OFF offsetof(struct xfs_dir3_free, hdr.hdr.crc)
/*
- * In core version of the free block header, abstracted away from on-disk format
- * differences. Use this in the code, and convert to/from the disk version using
- * xfs_dir3_free_hdr_from_disk/xfs_dir3_free_hdr_to_disk.
- */
-struct xfs_dir3_icfree_hdr {
- uint32_t magic;
- uint32_t firstdb;
- uint32_t nvalid;
- uint32_t nused;
-
-};
-
-/*
* Single block format.
*
* The single block format looks like the following drawing on disk:
@@ -710,29 +676,6 @@ struct xfs_attr3_leafblock {
};
/*
- * incore, neutral version of the attribute leaf header
- */
-struct xfs_attr3_icleaf_hdr {
- uint32_t forw;
- uint32_t back;
- uint16_t magic;
- uint16_t count;
- uint16_t usedbytes;
- /*
- * firstused is 32-bit here instead of 16-bit like the on-disk variant
- * to support maximum fsb size of 64k without overflow issues throughout
- * the attr code. Instead, the overflow condition is handled on
- * conversion to/from disk.
- */
- uint32_t firstused;
- __u8 holes;
- struct {
- uint16_t base;
- uint16_t size;
- } freemap[XFS_ATTR_LEAF_MAPSIZE];
-};
-
-/*
* Special value to represent fs block size in the leaf header firstused field.
* Only used when block size overflows the 2-bytes available on disk.
*/
diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h
index f54244779492..e170792c0acc 100644
--- a/fs/xfs/libxfs/xfs_dir2.h
+++ b/fs/xfs/libxfs/xfs_dir2.h
@@ -18,6 +18,8 @@ struct xfs_dir2_sf_entry;
struct xfs_dir2_data_hdr;
struct xfs_dir2_data_entry;
struct xfs_dir2_data_unused;
+struct xfs_dir3_icfree_hdr;
+struct xfs_dir3_icleaf_hdr;
extern struct xfs_name xfs_name_dotdot;
diff --git a/fs/xfs/libxfs/xfs_dir2_priv.h b/fs/xfs/libxfs/xfs_dir2_priv.h
index 59f9fb2241a5..d2eaea663e7f 100644
--- a/fs/xfs/libxfs/xfs_dir2_priv.h
+++ b/fs/xfs/libxfs/xfs_dir2_priv.h
@@ -8,6 +8,25 @@
struct dir_context;
+/*
+ * In-core version of the leaf and free block headers to abstract the
+ * differences in the v2 and v3 disk format of the headers.
+ */
+struct xfs_dir3_icleaf_hdr {
+ uint32_t forw;
+ uint32_t back;
+ uint16_t magic;
+ uint16_t count;
+ uint16_t stale;
+};
+
+struct xfs_dir3_icfree_hdr {
+ uint32_t magic;
+ uint32_t firstdb;
+ uint32_t nvalid;
+ uint32_t nused;
+};
+
/* xfs_dir2.c */
extern int xfs_dir2_grow_inode(struct xfs_da_args *args, int space,
xfs_dir2_db_t *dbp);