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658d72fe49
Currently we only have a trace event for when a fsync operation starts, but this alone is not very helpful. Add a trace event for when fsync finishes, which reports its return value, so that using tracing we can see which other trace events happened in between (several will be added soon for inode logging steps) and even measure execution time. So rename the existing trace event btrfs_sync_file to btrfs_sync_file_enter and add the trace event btrfs_sync_file_exit. The naming is similar to what ext4 does (ext4_sync_file_enter and ext4_sync_file_exit) and with similar information reported. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Filipe Manana <fdmanana@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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