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authorJoel Becker <joel.becker@oracle.com>2010-03-26 10:07:42 +0800
committerTao Ma <tao.ma@oracle.com>2010-03-26 10:07:42 +0800
commit9cbc01231e82f9390edaea2b766abcb7165dc4b2 (patch)
tree7fd72381972cae8bd81eb3c5d5c6d1fe26173b94 /fs/ocfs2/ocfs2_fs.h
parent7d1fe093bf04124dcc50c5dde1765bd098464bfa (diff)
downloadlinux-9cbc01231e82f9390edaea2b766abcb7165dc4b2.tar.bz2
ocfs2: Add suballoc_loc to metadata blocks.
We need a suballoc_loc field on any suballocated block. Define them. Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2/ocfs2_fs.h')
-rw-r--r--fs/ocfs2/ocfs2_fs.h29
1 files changed, 24 insertions, 5 deletions
diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 888ba4ec42c6..a17bce591ee3 100644
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -507,7 +507,10 @@ struct ocfs2_extent_block
block group */
__le32 h_fs_generation; /* Must match super block */
__le64 h_blkno; /* Offset on disk, in blocks */
-/*20*/ __le64 h_reserved3;
+/*20*/ __le64 h_suballoc_loc; /* Suballocator block group this
+ eb belongs to. Only valid
+ if allocated from a
+ discontiguous block group */
__le64 h_next_leaf_blk; /* Offset on disk, in blocks,
of next leaf header pointing
to data */
@@ -674,7 +677,11 @@ struct ocfs2_dinode {
/*80*/ struct ocfs2_block_check i_check; /* Error checking */
/*88*/ __le64 i_dx_root; /* Pointer to dir index root block */
/*90*/ __le64 i_refcount_loc;
- __le64 i_reserved2[4];
+ __le64 i_suballoc_loc; /* Suballocator block group this
+ inode belongs to. Only valid
+ if allocated from a
+ discontiguous block group */
+/*A0*/ __le64 i_reserved2[3];
/*B8*/ union {
__le64 i_pad1; /* Generic way to refer to this
64bit union */
@@ -809,7 +816,12 @@ struct ocfs2_dx_root_block {
__le32 dr_reserved2;
__le64 dr_free_blk; /* Pointer to head of free
* unindexed block list. */
- __le64 dr_reserved3[15];
+ __le64 dr_suballoc_loc; /* Suballocator block group
+ this root belongs to.
+ Only valid if allocated
+ from a discontiguous
+ block group */
+ __le64 dr_reserved3[14];
union {
struct ocfs2_extent_list dr_list; /* Keep this aligned to 128
* bits for maximum space
@@ -929,7 +941,11 @@ struct ocfs2_refcount_block {
/*40*/ __le32 rf_generation; /* generation number. all be the same
* for the same refcount tree. */
__le32 rf_reserved0;
- __le64 rf_reserved1[7];
+ __le64 rf_suballoc_loc; /* Suballocator block group this
+ refcount block belongs to. Only
+ valid if allocated from a
+ discontiguous block group */
+/*50*/ __le64 rf_reserved1[6];
/*80*/ union {
struct ocfs2_refcount_list rf_records; /* List of refcount
records */
@@ -1041,7 +1057,10 @@ struct ocfs2_xattr_block {
real xattr or a xattr tree. */
__le16 xb_reserved0;
__le32 xb_reserved1;
- __le64 xb_reserved2;
+ __le64 xb_suballoc_loc; /* Suballocator block group this
+ xattr block belongs to. Only
+ valid if allocated from a
+ discontiguous block group */
/*30*/ union {
struct ocfs2_xattr_header xb_header; /* xattr header if this
block contains xattr */