• Dave Chinner's avatar
    xfs: buffer type overruns blf_flags field · 61fe135c
    Dave Chinner authored
    The buffer type passed to log recvoery in the buffer log item
    overruns the blf_flags field. I had assumed that flags field was a
    32 bit value, and it turns out it is a unisgned short. Therefore
    having 19 flags doesn't really work.
    
    Convert the buffer type field to numeric value, and use the top 5
    bits of the flags field for it. We currently have 17 types of
    buffers, so using 5 bits gives us plenty of room for expansion in
    future....
    Signed-off-by: default avatarDave Chinner <dchinner@redhat.com>
    Reviewed-by: default avatarBen Myers <bpm@sgi.com>
    Signed-off-by: default avatarBen Myers <bpm@sgi.com>
    61fe135c
xfs_buf_item.h 5.4 KB