A few XFS Mount code bugs in XFS 1.0.1

["Harrison Xing" <xinghy@xxxxxxxxxxx>]

For XFS 1.0.1 release:
In file fs/xfs/xfs_mount.c,  there seems to be some bugs with error 
handling.

First,  around line 851 and 870,  the following code should be added
     rvp->v_flag |= VPURGE;
before calling
     vn_purge(rvp, &vmap);

Second, the exit of error2 should add some code to free the log structure. 
eg.
     xfs_log_unmount_dealloc(mp)
for some error cases after the log structure is allocated.

Third, if it exits from line 840, ( "fail to read root inode") , the next 
mount
will Oops.  I've looked at the code but didn't find any obvious errors, 
maybe
someone can check it for more details.  Probably there are some problems 
with xfs_iget at error handling.

Best Regards,
 Harrison Xing


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