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author | Darrick J. Wong <djwong@kernel.org> | 2023-12-15 21:03:28 +0300 |
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committer | Darrick J. Wong <djwong@kernel.org> | 2023-12-15 21:03:28 +0300 |
commit | 26de64629d8b439a03bce243f14a46f7440729f3 (patch) | |
tree | 1b904b1e730563e1be156704c67c185e77b69c5c /fs/xfs/xfs_globals.c | |
parent | c1e0f8e6fb060b23b6f1b82eb4265983f7d271f8 (diff) | |
download | linux-26de64629d8b439a03bce243f14a46f7440729f3.tar.xz |
xfs: read leaf blocks when computing keys for bulkloading into node blocks
When constructing a new btree, xfs_btree_bload_node needs to read the
btree blocks for level N to compute the keyptrs for the blocks that will
be loaded into level N+1. The level N blocks must be formatted at that
point.
A subsequent patch will change the btree bulkloader to write new btree
blocks in 256K chunks to moderate memory consumption if the new btree is
very large. As a consequence of that, it's possible that the buffers
for lower level blocks might have been reclaimed by the time the node
builder comes back to the block.
Therefore, change xfs_btree_bload_node to read the lower level blocks
to handle the reclaimed buffer case. As a side effect, the read will
increase the LRU refs, which will bias towards keeping new btree buffers
in memory after the new btree commits.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_globals.c')
0 files changed, 0 insertions, 0 deletions