diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-02-14 11:22:53 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-02-17 10:53:11 -0800 |
| commit | c3793e0d94af2071c6f3842dcdb5ea08bd011354 (patch) | |
| tree | ee04d23e13b85f748574356d49912e45a2da7671 | |
| parent | 7773647c3ea250586c2ee44559f6f1bdc2a5c885 (diff) | |
Revert: xfs: fix _xfs_buf_find oops on blocks beyond the filesystem end
This reverts commit a56040731e5b00081c6d6c26b99e6e257a5d63d7 which was
commit eb178619f930fa2ba2348de332a1ff1c66a31424 upstream.
It has been reported to cause problems:
http://bugzilla.redhat.com/show_bug.cgi?id=909602
Acked-by: Ben Myers <bpm@sgi.com>
Acked-by: Dave Chinner <dchinner@redhat.com>
Cc: Brian Foster <bfoster@redhat.com>
Cc: CAI Qian <caiqian@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/xfs/xfs_buf.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 58a1f41189bf..4b0b8dd1b7b0 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -487,7 +487,6 @@ _xfs_buf_find( struct rb_node *parent; xfs_buf_t *bp; xfs_daddr_t blkno = map[0].bm_bn; - xfs_daddr_t eofs; int numblks = 0; int i; @@ -499,23 +498,6 @@ _xfs_buf_find( ASSERT(!(numbytes < (1 << btp->bt_sshift))); ASSERT(!(BBTOB(blkno) & (xfs_off_t)btp->bt_smask)); - /* - * Corrupted block numbers can get through to here, unfortunately, so we - * have to check that the buffer falls within the filesystem bounds. - */ - eofs = XFS_FSB_TO_BB(btp->bt_mount, btp->bt_mount->m_sb.sb_dblocks); - if (blkno >= eofs) { - /* - * XXX (dgc): we should really be returning EFSCORRUPTED here, - * but none of the higher level infrastructure supports - * returning a specific error on buffer lookup failures. - */ - xfs_alert(btp->bt_mount, - "%s: Block out of range: block 0x%llx, EOFS 0x%llx ", - __func__, blkno, eofs); - return NULL; - } - /* get tree root */ pag = xfs_perag_get(btp->bt_mount, xfs_daddr_to_agno(btp->bt_mount, blkno)); |