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author | Mark Tinguely <tinguely@sgi.com> | 2012-12-04 17:18:02 -0600 |
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committer | Ben Myers <bpm@sgi.com> | 2012-12-17 16:19:56 -0600 |
commit | f4b42421d80cac4291dd82bd97baa1bc06b351fc (patch) | |
tree | 04c5c95e2f3aff25af790789a74814d7dd080464 /fs/xfs/xfs_buf_item.c | |
parent | f9668a09e32ac6d2aa22f44cc310e430a8f4a40f (diff) | |
download | op-kernel-dev-f4b42421d80cac4291dd82bd97baa1bc06b351fc.zip op-kernel-dev-f4b42421d80cac4291dd82bd97baa1bc06b351fc.tar.gz |
xfs: use b_maps[] for discontiguous buffers
Commits starting at 77c1a08 introduced a multiple segment support
to xfs_buf. xfs_trans_buf_item_match() could not find a multi-segment
buffer in the transaction because it was looking at the single segment
block number rather than the multi-segment b_maps[0].bm.bn. This
results on a recursive buffer lock that can never be satisfied.
This patch:
1) Changed the remaining b_map accesses to be b_maps[0] accesses.
2) Renames the single segment b_map structure to __b_map to avoid
future confusion.
Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_buf_item.c')
0 files changed, 0 insertions, 0 deletions