Commit 1477b6c8 authored by Vladimir Sementsov-Ogievskiy's avatar Vladimir Sementsov-Ogievskiy Committed by Kevin Wolf
Browse files

block/qcow2-refcount: add trace-point to qcow2_process_discards 



Let's at least trace ignored failure.

Signed-off-by: default avatarVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: default avatarEric Blake <eblake@redhat.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent 42a65f02

block/qcow2-refcount.c

+6 −1
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
#include "qemu/range.h"

#include "qemu/bswap.h"

#include "qemu/cutils.h"

#include "trace.h"



static int64_t alloc_clusters_noref(BlockDriverState *bs, uint64_t size,

                                    uint64_t max);
@@ -737,7 +738,11 @@ void qcow2_process_discards(BlockDriverState *bs, int ret) 


        /* Discard is optional, ignore the return value */

        if (ret >= 0) {

            bdrv_pdiscard(bs->file, d->offset, d->bytes);

            int r2 = bdrv_pdiscard(bs->file, d->offset, d->bytes);

            if (r2 < 0) {

                trace_qcow2_process_discards_failed_region(d->offset, d->bytes,

                                                           r2);

            }

        }



        g_free(d);

block/trace-events

+3 −0
Original line number Diff line number Diff line
@@ -92,6 +92,9 @@ qcow2_cache_get_done(void *co, int c, int i) "co %p is_l2_cache %d index %d" 
qcow2_cache_flush(void *co, int c) "co %p is_l2_cache %d"

qcow2_cache_entry_flush(void *co, int c, int i) "co %p is_l2_cache %d index %d"



# qcow2-refcount.c

qcow2_process_discards_failed_region(uint64_t offset, uint64_t bytes, int ret) "offset 0x%" PRIx64 " bytes 0x%" PRIx64 " ret %d"



# qed-l2-cache.c

qed_alloc_l2_cache_entry(void *l2_cache, void *entry) "l2_cache %p entry %p"

qed_unref_l2_cache_entry(void *entry, int ref) "entry %p ref %d"