1 files changed, 83 insertions, 0 deletions

diff --git a/fs/xfs/xfs_log_format.h b/fs/xfs/xfs_log_format.h
index 77a6024d1180..d1e93d38bd39 100644
--- a/fs/xfs/xfs_log_format.h
+++ b/fs/xfs/xfs_log_format.h
@@ -461,4 +461,87 @@ xfs_blft_from_flags(struct xfs_buf_log_format *blf)
         return (blf->blf_flags & XFS_BLFT_MASK) >> XFS_BLFT_SHIFT;
 }
 
+/*
+ * EFI/EFD log format definitions
+ */
+typedef struct xfs_extent {
+        xfs_dfsbno_t    ext_start;
+        xfs_extlen_t    ext_len;
+} xfs_extent_t;
+
+/*
+ * Since an xfs_extent_t has types (start:64, len: 32)
+ * there are different alignments on 32 bit and 64 bit kernels.
+ * So we provide the different variants for use by a
+ * conversion routine.
+ */
+typedef struct xfs_extent_32 {
+        __uint64_t      ext_start;
+        __uint32_t      ext_len;
+} __attribute__((packed)) xfs_extent_32_t;
+
+typedef struct xfs_extent_64 {
+        __uint64_t      ext_start;
+        __uint32_t      ext_len;
+        __uint32_t      ext_pad;
+} xfs_extent_64_t;
+
+/*
+ * This is the structure used to lay out an efi log item in the
+ * log.  The efi_extents field is a variable size array whose
+ * size is given by efi_nextents.
+ */
+typedef struct xfs_efi_log_format {
+        __uint16_t              efi_type;       /* efi log item type */
+        __uint16_t              efi_size;       /* size of this item */
+        __uint32_t              efi_nextents;   /* # extents to free */
+        __uint64_t              efi_id;         /* efi identifier */
+        xfs_extent_t            efi_extents[1]; /* array of extents to free */
+} xfs_efi_log_format_t;
+
+typedef struct xfs_efi_log_format_32 {
+        __uint16_t              efi_type;       /* efi log item type */
+        __uint16_t              efi_size;       /* size of this item */
+        __uint32_t              efi_nextents;   /* # extents to free */
+        __uint64_t              efi_id;         /* efi identifier */
+        xfs_extent_32_t         efi_extents[1]; /* array of extents to free */
+} __attribute__((packed)) xfs_efi_log_format_32_t;
+
+typedef struct xfs_efi_log_format_64 {
+        __uint16_t              efi_type;       /* efi log item type */
+        __uint16_t              efi_size;       /* size of this item */
+        __uint32_t              efi_nextents;   /* # extents to free */
+        __uint64_t              efi_id;         /* efi identifier */
+        xfs_extent_64_t         efi_extents[1]; /* array of extents to free */
+} xfs_efi_log_format_64_t;
+
+/*
+ * This is the structure used to lay out an efd log item in the
+ * log.  The efd_extents array is a variable size array whose
+ * size is given by efd_nextents;
+ */
+typedef struct xfs_efd_log_format {
+        __uint16_t              efd_type;       /* efd log item type */
+        __uint16_t              efd_size;       /* size of this item */
+        __uint32_t              efd_nextents;   /* # of extents freed */
+        __uint64_t              efd_efi_id;     /* id of corresponding efi */
+        xfs_extent_t            efd_extents[1]; /* array of extents freed */
+} xfs_efd_log_format_t;
+
+typedef struct xfs_efd_log_format_32 {
+        __uint16_t              efd_type;       /* efd log item type */
+        __uint16_t              efd_size;       /* size of this item */
+        __uint32_t              efd_nextents;   /* # of extents freed */
+        __uint64_t              efd_efi_id;     /* id of corresponding efi */
+        xfs_extent_32_t         efd_extents[1]; /* array of extents freed */
+} __attribute__((packed)) xfs_efd_log_format_32_t;
+
+typedef struct xfs_efd_log_format_64 {
+        __uint16_t              efd_type;       /* efd log item type */
+        __uint16_t              efd_size;       /* size of this item */
+        __uint32_t              efd_nextents;   /* # of extents freed */
+        __uint64_t              efd_efi_id;     /* id of corresponding efi */
+        xfs_extent_64_t         efd_extents[1]; /* array of extents freed */
+} xfs_efd_log_format_64_t;
+
 #endif /* __XFS_LOG_FORMAT_H__ */