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xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_get
xfs_attr_rmtval_get is always called with i_lock held, but i_lock is taken in reclaim context so all allocations under it must avoid recursions into the filesystem. Reported by the new reclaim context tracing in lockdep. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Felix Blyakher <felixb@sgi.com> Signed-off-by: Felix Blyakher <felixb@sgi.com>
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1 changed files with 3 additions and 1 deletions
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@ -2010,7 +2010,9 @@ xfs_attr_rmtval_get(xfs_da_args_t *args)
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dblkno = XFS_FSB_TO_DADDR(mp, map[i].br_startblock);
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dblkno = XFS_FSB_TO_DADDR(mp, map[i].br_startblock);
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blkcnt = XFS_FSB_TO_BB(mp, map[i].br_blockcount);
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blkcnt = XFS_FSB_TO_BB(mp, map[i].br_blockcount);
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error = xfs_read_buf(mp, mp->m_ddev_targp, dblkno,
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error = xfs_read_buf(mp, mp->m_ddev_targp, dblkno,
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blkcnt, XFS_BUF_LOCK, &bp);
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blkcnt,
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XFS_BUF_LOCK | XBF_DONT_BLOCK,
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&bp);
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if (error)
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if (error)
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return(error);
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return(error);
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