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author | Lluís Vilanova <vilanova@ac.upc.edu> | 2017-07-04 10:34:19 +0200 |
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committer | Stefan Hajnoczi <stefanha@redhat.com> | 2017-07-17 13:10:45 +0100 |
commit | d01c05c955f7736952c13d85edaae0b262b7a0a3 (patch) | |
tree | 2f0f246640d0c12e7d762f776fa1c90200c9e85e /Makefile | |
parent | 4871b51b9241b10f4fd8e04bbb21577886795e25 (diff) |
trace: Allocate cpu->trace_dstate in place
There's little point in dynamically allocating the bitmap if we
know at compile-time the max number of events we want to support.
Thus, make room in the struct for the bitmap, which will make things
easier later: this paves the way for upcoming changes, in which
we'll use a u32 to fully capture cpu->trace_dstate.
This change also increases performance by saving a dereference and
improving locality--note that this is important since upcoming work
makes reading this bitmap fairly common.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id: 149915725977.6295.15069969323605305641.stgit@frigg.lan
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions