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xfs: rename xfs_buf_get_nodaddr to be more appropriate

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xfs_buf_get_nodaddr() is really used to allocate a buffer that is
uncached. While it is not directly assigned a disk address, the fact
that they are not cached is a more important distinction. With the
upcoming uncached buffer read primitive, we should be consistent
with this disctinction.

While there, make page allocation in xfs_buf_get_nodaddr() safe
against memory reclaim re-entrancy into the filesystem by allowing
a flags parameter to be passed.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Dave Chinner
2010-09-24 20:07:47 +10:00
committed by Alex Elder
parent dcd79a1423
commit 686865f76e
6 changed files with 14 additions and 11 deletions
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6
fs/xfs/xfs_vnodeops.c
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@@ -2434,9 +2434,9 @@ xfs_zero_remaining_bytes(
if (endoff > ip->i_size)
endoff = ip->i_size;
bp = xfs_buf_get_noaddr(mp->m_sb.sb_blocksize,
XFS_IS_REALTIME_INODE(ip) ?
mp->m_rtdev_targp : mp->m_ddev_targp);
bp = xfs_buf_get_uncached(XFS_IS_REALTIME_INODE(ip) ?
mp->m_rtdev_targp : mp->m_ddev_targp,
mp->m_sb.sb_blocksize, XBF_DONT_BLOCK);
if (!bp)
return XFS_ERROR(ENOMEM);