xfs: store rmapbt block count in the AGF

[cascardo/linux.git] / fs / xfs / libxfs / xfs_format.h

diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index f814d42..e6a8bea 100644 (file)
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -640,12 +640,15 @@ typedef struct xfs_agf {
        __be32          agf_btreeblks;  /* # of blocks held in AGF btrees */
        uuid_t          agf_uuid;       /* uuid of filesystem */
 
+       __be32          agf_rmap_blocks;        /* rmapbt blocks used */
+       __be32          agf_padding;            /* padding */
+
        /*
         * reserve some contiguous space for future logged fields before we add
         * the unlogged fields. This makes the range logging via flags and
         * structure offsets much simpler.
         */
-       __be64          agf_spare64[16];
+       __be64          agf_spare64[15];
 
        /* unlogged fields, written during buffer writeback. */
        __be64          agf_lsn;        /* last write sequence */
@@ -670,7 +673,8 @@ typedef struct xfs_agf {
 #define        XFS_AGF_LONGEST         0x00000400
 #define        XFS_AGF_BTREEBLKS       0x00000800
 #define        XFS_AGF_UUID            0x00001000
-#define        XFS_AGF_NUM_BITS        13
+#define        XFS_AGF_RMAP_BLOCKS     0x00002000
+#define        XFS_AGF_NUM_BITS        14
 #define        XFS_AGF_ALL_BITS        ((1 << XFS_AGF_NUM_BITS) - 1)
 
 #define XFS_AGF_FLAGS \
@@ -686,7 +690,8 @@ typedef struct xfs_agf {
        { XFS_AGF_FREEBLKS,     "FREEBLKS" }, \
        { XFS_AGF_LONGEST,      "LONGEST" }, \
        { XFS_AGF_BTREEBLKS,    "BTREEBLKS" }, \
-       { XFS_AGF_UUID,         "UUID" }
+       { XFS_AGF_UUID,         "UUID" }, \
+       { XFS_AGF_RMAP_BLOCKS,  "RMAP_BLOCKS" }
 
 /* disk block (xfs_daddr_t) in the AG */
 #define XFS_AGF_DADDR(mp)      ((xfs_daddr_t)(1 << (mp)->m_sectbb_log))