• Eric Sandeen's avatar
    ext4: don't use ext4_allocation_contexts for tracing · 3e1e5f50
    Eric Sandeen authored
    Many tracepoints were populating an ext4_allocation_context
    to pass in, but this requires a slab allocation even when
    tracepoints are off.  In fact, 4 of 5 of these allocations
    were only for tracing.  In addition, we were only using a
    small fraction of the 144 bytes of this structure for this
    purpose.
    
    We can do away with all these alloc/frees of the ac and
    simply pass in the bits we care about, instead.
    
    I tested this by turning on tracing and running through
    xfstests on x86_64.  I did not actually do anything with
    the trace output, however.
    Signed-off-by: default avatarEric Sandeen <sandeen@redhat.com>
    Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
    3e1e5f50
mballoc.c 127 KB