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    Btrfs: add file item tracepoints · 09ed2f16
    Liu Bo 提交于
    While debugging truncate problems, I found that these tracepoints could
    help us quickly know what went wrong.
    
    Two sets of tracepoints are created to track regular/prealloc file item
    and inline file item respectively, I put inline as a separate one since
    what inline file items cares about are way less than the regular one.
    
    This adds four tracepoints:
    - btrfs_get_extent_show_fi_regular
    - btrfs_get_extent_show_fi_inline
    - btrfs_truncate_show_fi_regular
    - btrfs_truncate_show_fi_inline
    
    Cc: David Sterba <dsterba@suse.cz>
    Signed-off-by: NLiu Bo <bo.li.liu@oracle.com>
    Reviewed-by: NDavid Sterba <dsterba@suse.com>
    [ formatting adjustments ]
    Signed-off-by: NDavid Sterba <dsterba@suse.com>
    09ed2f16
inode.c 283.4 KB