minor patch to xfs_log_recover.c

[William L Jones <jones@xxxxxxxxxxxxxxxxxx>]

Return a ENOMEM error if xfs_log_recover.c can't get a big_bp buffer.  
This can happen a small memory machines, 32mb or less.

*** xfs_log_recover.c.orig      Thu Aug  3 19:40:04 2000
--- xfs_log_recover.c   Thu Aug  3 19:42:54 2000
***************
*** 494,500 ****
       * we actually look at the block size of the filesystem.
       */
      num_scan_bblks = BTOBB(XLOG_MAX_ICLOGS<<XLOG_MAX_RECORD_BSHIFT);
!       big_bp = xlog_get_bp(num_scan_bblks,log->l_mp);
      if (head_blk >= num_scan_bblks) {
        /*
         * We are guaranteed that the entire check can be performed
--- 494,504 ----
       * we actually look at the block size of the filesystem.
       */
      num_scan_bblks = BTOBB(XLOG_MAX_ICLOGS<<XLOG_MAX_RECORD_BSHIFT);
!     big_bp = xlog_get_bp(num_scan_bblks,log->l_mp);
!     if(big_bp == NULL) {
!       error =  XFS_ERROR(ENOMEM);
!       goto bp_err;
!     }
      if (head_blk >= num_scan_bblks) {
        /*
         * We are guaranteed that the entire check can be performed
***************
*** 962,967 ****
--- 966,975 ----
        num_scan_bblks = BTOBB(XLOG_MAX_ICLOGS<<XLOG_MAX_RECORD_BSHIFT);
        ASSERT(num_scan_bblks <= INT_MAX);
        big_bp = xlog_get_bp((int)num_scan_bblks,log->l_mp);
+       if(big_bp == NULL) {
+               error =  XFS_ERROR(ENOMEM);
+               goto bp_err;
+       }
          ASSERT(big_bp);
          
        if (last_blk < num_scan_bblks)

--