Btrfs: add tracepoint for em's EEXIST case

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This is adding a tracepoint 'btrfs_handle_em_exist' to help debug the
subtle bugs around merge_extent_mapping.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Liu Bo 2018-01-05 12:51:16 -07:00 • committed by David Sterba

parent 5d23515be6

commit 393da91819

2 changed files with 38 additions and 0 deletions

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35

include/trace/events/btrfs.h

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