Merge branch 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic...

[safe/jmp/linux-2.6] / fs / xfs / xfs_log_recover.c

diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 3bfff42..0de08e3 100644 (file)
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -60,9 +60,6 @@ STATIC void   xlog_recover_check_summary(xlog_t *);
  * Sector aligned buffer routines for buffer create/read/write/access
  */
 
-/* Number of basic blocks in a log sector */
-#define xlog_sectbb(log) (1 << (log)->l_sectbb_log)
-
 /*
  * Verify the given count of basic blocks is valid number of blocks
  * to specify for an operation involving the given XFS log buffer.
@@ -110,9 +107,9 @@ xlog_get_bp(
         * extend the buffer by one extra log sector to ensure
         * there's space to accomodate this possiblility.
         */
-       if (nbblks > 1 && log->l_sectbb_log)
-               nbblks += xlog_sectbb(log);
-       nbblks = round_up(nbblks, xlog_sectbb(log));
+       if (nbblks > 1 && log->l_sectBBsize > 1)
+               nbblks += log->l_sectBBsize;
+       nbblks = round_up(nbblks, log->l_sectBBsize);
 
        return xfs_buf_get_noaddr(BBTOB(nbblks), log->l_mp->m_logdev_targp);
 }
@@ -124,6 +121,10 @@ xlog_put_bp(
        xfs_buf_free(bp);
 }
 
+/*
+ * Return the address of the start of the given block number's data
+ * in a log buffer.  The buffer covers a log sector-aligned region.
+ */
 STATIC xfs_caddr_t
 xlog_align(
        xlog_t          *log,
@@ -131,14 +132,14 @@ xlog_align(
        int             nbblks,
        xfs_buf_t       *bp)
 {
+       xfs_daddr_t     offset;
        xfs_caddr_t     ptr;
 
-       if (!log->l_sectbb_log)
-               return XFS_BUF_PTR(bp);
+       offset = blk_no & ((xfs_daddr_t) log->l_sectBBsize - 1);
+       ptr = XFS_BUF_PTR(bp) + BBTOB(offset);
+
+       ASSERT(ptr + BBTOB(nbblks) <= XFS_BUF_PTR(bp) + XFS_BUF_SIZE(bp));
 
-       ptr = XFS_BUF_PTR(bp) + BBTOB((int)blk_no & log->l_sectbb_mask);
-       ASSERT(XFS_BUF_SIZE(bp) >=
-               BBTOB(nbblks + (blk_no & log->l_sectbb_mask)));
        return ptr;
 }
 
@@ -162,8 +163,8 @@ xlog_bread_noalign(
                return EFSCORRUPTED;
        }
 
-       blk_no = round_down(blk_no, xlog_sectbb(log));
-       nbblks = round_up(nbblks, xlog_sectbb(log));
+       blk_no = round_down(blk_no, log->l_sectBBsize);
+       nbblks = round_up(nbblks, log->l_sectBBsize);
 
        ASSERT(nbblks > 0);
        ASSERT(BBTOB(nbblks) <= XFS_BUF_SIZE(bp));
@@ -221,8 +222,8 @@ xlog_bwrite(
                return EFSCORRUPTED;
        }
 
-       blk_no = round_down(blk_no, xlog_sectbb(log));
-       nbblks = round_up(nbblks, xlog_sectbb(log));
+       blk_no = round_down(blk_no, log->l_sectBBsize);
+       nbblks = round_up(nbblks, log->l_sectBBsize);
 
        ASSERT(nbblks > 0);
        ASSERT(BBTOB(nbblks) <= XFS_BUF_SIZE(bp));
@@ -410,7 +411,7 @@ xlog_find_verify_cycle(
        bufblks = 1 << ffs(nbblks);
        while (!(bp = xlog_get_bp(log, bufblks))) {
                bufblks >>= 1;
-               if (bufblks < xlog_sectbb(log))
+               if (bufblks < log->l_sectBBsize)
                        return ENOMEM;
        }
 
@@ -1181,7 +1182,7 @@ xlog_write_log_records(
        xfs_caddr_t     offset;
        xfs_buf_t       *bp;
        int             balign, ealign;
-       int             sectbb = xlog_sectbb(log);
+       int             sectbb = log->l_sectBBsize;
        int             end_block = start_block + blocks;
        int             bufblks;
        int             error = 0;
@@ -1196,7 +1197,7 @@ xlog_write_log_records(
        bufblks = 1 << ffs(blocks);
        while (!(bp = xlog_get_bp(log, bufblks))) {
                bufblks >>= 1;
-               if (bufblks < xlog_sectbb(log))
+               if (bufblks < sectbb)
                        return ENOMEM;
        }
 
@@ -3394,42 +3395,6 @@ xlog_pack_data(
        }
 }
 
-#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
-STATIC void
-xlog_unpack_data_checksum(
-       xlog_rec_header_t       *rhead,
-       xfs_caddr_t             dp,
-       xlog_t                  *log)
-{
-       __be32                  *up = (__be32 *)dp;
-       uint                    chksum = 0;
-       int                     i;
-
-       /* divide length by 4 to get # words */
-       for (i=0; i < be32_to_cpu(rhead->h_len) >> 2; i++) {
-               chksum ^= be32_to_cpu(*up);
-               up++;
-       }
-       if (chksum != be32_to_cpu(rhead->h_chksum)) {
-           if (rhead->h_chksum ||
-               ((log->l_flags & XLOG_CHKSUM_MISMATCH) == 0)) {
-                   cmn_err(CE_DEBUG,
-                       "XFS: LogR chksum mismatch: was (0x%x) is (0x%x)\n",
-                           be32_to_cpu(rhead->h_chksum), chksum);
-                   cmn_err(CE_DEBUG,
-"XFS: Disregard message if filesystem was created with non-DEBUG kernel");
-                   if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) {
-                           cmn_err(CE_DEBUG,
-                               "XFS: LogR this is a LogV2 filesystem\n");
-                   }
-                   log->l_flags |= XLOG_CHKSUM_MISMATCH;
-           }
-       }
-}
-#else
-#define xlog_unpack_data_checksum(rhead, dp, log)
-#endif
-
 STATIC void
 xlog_unpack_data(
        xlog_rec_header_t       *rhead,
@@ -3453,8 +3418,6 @@ xlog_unpack_data(
                        dp += BBSIZE;
                }
        }
-
-       xlog_unpack_data_checksum(rhead, dp, log);
 }
 
 STATIC int
@@ -3553,7 +3516,7 @@ xlog_do_recovery_pass(
                        hblks = 1;
                }
        } else {
-               ASSERT(log->l_sectbb_log == 0);
+               ASSERT(log->l_sectBBsize == 1);
                hblks = 1;
                hbp = xlog_get_bp(log, 1);
                h_size = XLOG_BIG_RECORD_BSIZE;
@@ -4009,10 +3972,6 @@ xlog_recover_check_summary(
        xfs_agf_t       *agfp;
        xfs_buf_t       *agfbp;
        xfs_buf_t       *agibp;
-       xfs_buf_t       *sbbp;
-#ifdef XFS_LOUD_RECOVERY
-       xfs_sb_t        *sbp;
-#endif
        xfs_agnumber_t  agno;
        __uint64_t      freeblks;
        __uint64_t      itotal;
@@ -4047,30 +4006,5 @@ xlog_recover_check_summary(
                        xfs_buf_relse(agibp);
                }
        }
-
-       sbbp = xfs_getsb(mp, 0);
-#ifdef XFS_LOUD_RECOVERY
-       sbp = &mp->m_sb;
-       xfs_sb_from_disk(sbp, XFS_BUF_TO_SBP(sbbp));
-       cmn_err(CE_NOTE,
-               "xlog_recover_check_summary: sb_icount %Lu itotal %Lu",
-               sbp->sb_icount, itotal);
-       cmn_err(CE_NOTE,
-               "xlog_recover_check_summary: sb_ifree %Lu itotal %Lu",
-               sbp->sb_ifree, ifree);
-       cmn_err(CE_NOTE,
-               "xlog_recover_check_summary: sb_fdblocks %Lu freeblks %Lu",
-               sbp->sb_fdblocks, freeblks);
-#if 0
-       /*
-        * This is turned off until I account for the allocation
-        * btree blocks which live in free space.
-        */
-       ASSERT(sbp->sb_icount == itotal);
-       ASSERT(sbp->sb_ifree == ifree);
-       ASSERT(sbp->sb_fdblocks == freeblks);
-#endif
-#endif
-       xfs_buf_relse(sbbp);
 }
 #endif /* DEBUG */