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Remove GPL boilerplate text (long, short, one-line) and keep the rest,
ie. personal, company or original source copyright statements. Add the
SPDX header.
Signed-off-by: David Sterba <[email protected]>
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Add a missing void parameter to function btrfs_test_extent_map, fixes
sparse warning:
warning: non-ANSI function declaration of function 'btrfs_test_extent_map'
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: David Sterba <[email protected]>
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This test case simulates the racy situation of dio write vs dio read,
and see if btrfs_get_extent() would return -EEXIST.
Signed-off-by: Liu Bo <[email protected]>
Reviewed-by: Josef Bacik <[email protected]>
Signed-off-by: David Sterba <[email protected]>
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This test case simulates the racy situation of buffered write vs dio
read, and see if btrfs_get_extent() would return -EEXIST.
Signed-off-by: Liu Bo <[email protected]>
Reviewed-by: Josef Bacik <[email protected]>
Signed-off-by: David Sterba <[email protected]>
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We've observed that btrfs_get_extent() and merge_extent_mapping() could
return -EEXIST in several cases, and they are caused by some racy
condition, e.g dio read vs dio write, which makes the problem very tricky
to reproduce.
This adds extent map selftests in order to simulate those racy situations.
Signed-off-by: Liu Bo <[email protected]>
Reviewed-by: Josef Bacik <[email protected]>
[ minor string adjustments ]
Signed-off-by: David Sterba <[email protected]>
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