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Diff for /xfs-linux/xfs_vfsops.c between versions 1.513 and 1.514

version 1.513, 2007/01/10 14:42:52 version 1.514, 2007/02/02 14:37:48
Line 872  xfs_statvfs( Line 872  xfs_statvfs(
  *                     this by simply making sure the log gets flushed   *                     this by simply making sure the log gets flushed
  *                     if SYNC_BDFLUSH is set, and by actually writing it   *                     if SYNC_BDFLUSH is set, and by actually writing it
  *                     out otherwise.   *                     out otherwise.
    *      SYNC_DIO_WAIT - The caller wants us to wait for all direct I/Os
    *                     as well to ensure all data I/O completes before we
    *                     return. Forms the drain side of the write barrier needed
    *                     to safely quiesce the filesystem.
  *   *
  */   */
 /*ARGSUSED*/  /*ARGSUSED*/
Line 883  xfs_sync( Line 887  xfs_sync(
 {  {
         xfs_mount_t     *mp = XFS_BHVTOM(bdp);          xfs_mount_t     *mp = XFS_BHVTOM(bdp);
   
         if (unlikely(flags == SYNC_QUIESCE))          return xfs_syncsub(mp, flags, NULL);
                 return xfs_quiesce_fs(mp);  
         else  
                 return xfs_syncsub(mp, flags, NULL);  
 }  }
   
 /*  /*
Line 1172  xfs_sync_inodes( Line 1173  xfs_sync_inodes(
                         }                          }
   
                 }                  }
                   /*
                    * When freezing, we need to wait ensure direct I/O is complete
                    * as well to ensure all data modification is complete here
                    */
                   if (flags & SYNC_DIO_WAIT)
                           vn_iowait(vp);
   
                 if (flags & SYNC_BDFLUSH) {                  if (flags & SYNC_BDFLUSH) {
                         if ((flags & SYNC_ATTR) &&                          if ((flags & SYNC_ATTR) &&
Line 1950  xfs_showargs( Line 1957  xfs_showargs(
         return 0;          return 0;
 }  }
   
   /*
    * Second stage of a freeze. The data is already frozen, now we have to take
    * care of the metadata. New transactions are already blocked, so we need to
    * wait for any remaining transactions to drain out before proceding.
    */
 STATIC void  STATIC void
 xfs_freeze(  xfs_freeze(
         bhv_desc_t      *bdp)          bhv_desc_t      *bdp)
 {  {
         xfs_mount_t     *mp = XFS_BHVTOM(bdp);          xfs_mount_t     *mp = XFS_BHVTOM(bdp);
   
           /* wait for all modifications to complete */
         while (atomic_read(&mp->m_active_trans) > 0)          while (atomic_read(&mp->m_active_trans) > 0)
                 delay(100);                  delay(100);
   
           /* flush inodes and push all remaining buffers out to disk */
           xfs_quiesce_fs(mp);
   
           BUG_ON(atomic_read(&mp->m_active_trans) > 0);
   
         /* Push the superblock and write an unmount record */          /* Push the superblock and write an unmount record */
         xfs_log_unmount_write(mp);          xfs_log_unmount_write(mp);
         xfs_unmountfs_writesb(mp);          xfs_unmountfs_writesb(mp);
Removed from v.1.513  
changed lines
  Added in v.1.514

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