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authorChristoph Hellwig <hch@lst.de>2023-05-03 17:24:40 +0200
committerDavid Sterba <dsterba@suse.com>2023-06-19 13:59:28 +0200
commitd7172f52e9933b6ec9305e7fe6e829e3939dba04 (patch)
tree62101cc94eccc2825aa1c6ac82c6a5340e65dfa4 /tools/perf/scripts/python/export-to-postgresql.py
parent9e2aff90fc2ad2b94933762f5442fef9ee7a692e (diff)
btrfs: use per-buffer locking for extent_buffer reading
Instead of locking and unlocking every page or the extent, just add a new EXTENT_BUFFER_READING bit that mirrors EXTENT_BUFFER_WRITEBACK for synchronizing threads trying to read an extent_buffer and to wait for I/O completion. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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