[XFS] kill xfs_ialloc_log_di

xfs_ialloc_log_di is only used to log the full inode core + di_next_unlinked.
That means all the offset magic is not nessecary and we can simply use
xfs_trans_log_buf directly.  Also add a comment describing what we should do
here instead.

(First sent on October 7th)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>

2 files changed, 10 insertions, 99 deletions

diff --git a/fs/xfs/xfs_dinode.h b/fs/xfs/xfs_dinode.h
index d7cf392cc852..10f9204b81eb 100644
--- a/fs/xfs/xfs_dinode.h
+++ b/fs/xfs/xfs_dinode.h
@@ -106,40 +106,6 @@ typedef struct xfs_dinode
 #define XFS_MAXLINK_1           65535U
 
 /*
- * Bit names for logging disk inodes only
- */
-#define XFS_DI_MAGIC            0x0000001
-#define XFS_DI_MODE             0x0000002
-#define XFS_DI_VERSION          0x0000004
-#define XFS_DI_FORMAT           0x0000008
-#define XFS_DI_ONLINK           0x0000010
-#define XFS_DI_UID              0x0000020
-#define XFS_DI_GID              0x0000040
-#define XFS_DI_NLINK            0x0000080
-#define XFS_DI_PROJID           0x0000100
-#define XFS_DI_PAD              0x0000200
-#define XFS_DI_ATIME            0x0000400
-#define XFS_DI_MTIME            0x0000800
-#define XFS_DI_CTIME            0x0001000
-#define XFS_DI_SIZE             0x0002000
-#define XFS_DI_NBLOCKS          0x0004000
-#define XFS_DI_EXTSIZE          0x0008000
-#define XFS_DI_NEXTENTS         0x0010000
-#define XFS_DI_NAEXTENTS        0x0020000
-#define XFS_DI_FORKOFF          0x0040000
-#define XFS_DI_AFORMAT          0x0080000
-#define XFS_DI_DMEVMASK         0x0100000
-#define XFS_DI_DMSTATE          0x0200000
-#define XFS_DI_FLAGS            0x0400000
-#define XFS_DI_GEN              0x0800000
-#define XFS_DI_NEXT_UNLINKED    0x1000000
-#define XFS_DI_U                0x2000000
-#define XFS_DI_A                0x4000000
-#define XFS_DI_NUM_BITS         27
-#define XFS_DI_ALL_BITS         ((1 << XFS_DI_NUM_BITS) - 1)
-#define XFS_DI_CORE_BITS        (XFS_DI_ALL_BITS & ~(XFS_DI_U|XFS_DI_A))
-
-/*
  * Values for di_format
  */
 typedef enum xfs_dinode_fmt
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index efb65fea203c..86d463ee7b9b 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -41,68 +41,6 @@
 #include "xfs_error.h"
 #include "xfs_bmap.h"
 
-/*
- * Log specified fields for the inode given by bp and off.
- */
-STATIC void
-xfs_ialloc_log_di(
-        xfs_trans_t     *tp,            /* transaction pointer */
-        xfs_buf_t       *bp,            /* inode buffer */
-        int             off,            /* index of inode in buffer */
-        int             fields)         /* bitmask of fields to log */
-{
-        int                     first;          /* first byte number */
-        int                     ioffset;        /* off in bytes */
-        int                     last;           /* last byte number */
-        xfs_mount_t             *mp;            /* mount point structure */
-        static const short      offsets[] = {   /* field offsets */
-                                                /* keep in sync with bits */
-                offsetof(xfs_dinode_core_t, di_magic),
-                offsetof(xfs_dinode_core_t, di_mode),
-                offsetof(xfs_dinode_core_t, di_version),
-                offsetof(xfs_dinode_core_t, di_format),
-                offsetof(xfs_dinode_core_t, di_onlink),
-                offsetof(xfs_dinode_core_t, di_uid),
-                offsetof(xfs_dinode_core_t, di_gid),
-                offsetof(xfs_dinode_core_t, di_nlink),
-                offsetof(xfs_dinode_core_t, di_projid),
-                offsetof(xfs_dinode_core_t, di_pad),
-                offsetof(xfs_dinode_core_t, di_atime),
-                offsetof(xfs_dinode_core_t, di_mtime),
-                offsetof(xfs_dinode_core_t, di_ctime),
-                offsetof(xfs_dinode_core_t, di_size),
-                offsetof(xfs_dinode_core_t, di_nblocks),
-                offsetof(xfs_dinode_core_t, di_extsize),
-                offsetof(xfs_dinode_core_t, di_nextents),
-                offsetof(xfs_dinode_core_t, di_anextents),
-                offsetof(xfs_dinode_core_t, di_forkoff),
-                offsetof(xfs_dinode_core_t, di_aformat),
-                offsetof(xfs_dinode_core_t, di_dmevmask),
-                offsetof(xfs_dinode_core_t, di_dmstate),
-                offsetof(xfs_dinode_core_t, di_flags),
-                offsetof(xfs_dinode_core_t, di_gen),
-                offsetof(xfs_dinode_t, di_next_unlinked),
-                offsetof(xfs_dinode_t, di_u),
-                offsetof(xfs_dinode_t, di_a),
-                sizeof(xfs_dinode_t)
-        };
-
-
-        ASSERT(offsetof(xfs_dinode_t, di_core) == 0);
-        ASSERT((fields & (XFS_DI_U|XFS_DI_A)) == 0);
-        mp = tp->t_mountp;
-        /*
-         * Get the inode-relative first and last bytes for these fields
-         */
-        xfs_btree_offsets(fields, offsets, XFS_DI_NUM_BITS, &first, &last);
-        /*
-         * Convert to buffer offsets and log it.
-         */
-        ioffset = off << mp->m_sb.sb_inodelog;
-        first += ioffset;
-        last += ioffset;
-        xfs_trans_log_buf(tp, bp, first, last);
-}
 
 /*
  * Allocation group level functions.
@@ -406,18 +344,25 @@ xfs_ialloc_ag_alloc(
                                          XFS_BUF_LOCK);
                 ASSERT(fbuf);
                 ASSERT(!XFS_BUF_GETERROR(fbuf));
+
                 /*
-                 * Set initial values for the inodes in this buffer.
+                 * Initialize all inodes in this buffer and then log them.
+                 *
+                 * XXX: It would be much better if we had just one transaction to
+                 *      log a whole cluster of inodes instead of all the indivdual
+                 *      transactions causing a lot of log traffic.
                  */
                 xfs_biozero(fbuf, 0, ninodes << args.mp->m_sb.sb_inodelog);
                 for (i = 0; i < ninodes; i++) {
+                        int     ioffset = i << args.mp->m_sb.sb_inodelog;
+                        uint    isize = sizeof(xfs_dinode_t) + sizeof(__be32);
+
                         free = XFS_MAKE_IPTR(args.mp, fbuf, i);
                         free->di_core.di_magic = cpu_to_be16(XFS_DINODE_MAGIC);
                         free->di_core.di_version = version;
                         free->di_core.di_gen = cpu_to_be32(gen);
                         free->di_next_unlinked = cpu_to_be32(NULLAGINO);
-                        xfs_ialloc_log_di(tp, fbuf, i,
-                                XFS_DI_CORE_BITS | XFS_DI_NEXT_UNLINKED);
+                        xfs_trans_log_buf(tp, fbuf, ioffset, ioffset + isize - 1);
                 }
                 xfs_trans_inode_alloc_buf(tp, fbuf);
         }