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| author | Hu Tao <hutao@cn.fujitsu.com> | 2014-01-26 11:12:37 +0800 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2014-02-09 09:12:39 +0100 |
| commit | 16f0587e0a5da5b1ad76cb7c3739491bc042201c (patch) | |
| tree | fe16fb6117ff4ea4eedaf790b369721db262b296 /trace-events | |
| parent | 5d259fc7da83249a4f78fe32de2bc2874a997a9f (diff) | |
| download | qemu-16f0587e0a5da5b1ad76cb7c3739491bc042201c.zip qemu-16f0587e0a5da5b1ad76cb7c3739491bc042201c.tar.gz qemu-16f0587e0a5da5b1ad76cb7c3739491bc042201c.tar.bz2 | |
qcow2: remove n_start and n_end of qcow2_alloc_cluster_offset()
n_start can be actually calculated from offset. The number of
sectors to be allocated(n_end - n_start) can be passed in in
num. By removing n_start and n_end, we can save two parameters.
The side effect is there is a bug in qcow2.c:preallocate() that
passes incorrect n_start to qcow2_alloc_cluster_offset() is
fixed. The bug can be triggerred by a larger cluster size than
the default value(65536), for example:
./qemu-img create -f qcow2 \
-o 'cluster_size=131072,preallocation=metadata' file.img 4G
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'trace-events')
| -rw-r--r-- | trace-events | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/trace-events b/trace-events index 1b668d1..ab11f97 100644 --- a/trace-events +++ b/trace-events @@ -495,7 +495,7 @@ qcow2_writev_done_part(void *co, int cur_nr_sectors) "co %p cur_nr_sectors %d" qcow2_writev_data(void *co, uint64_t offset) "co %p offset %" PRIx64 # block/qcow2-cluster.c -qcow2_alloc_clusters_offset(void *co, uint64_t offset, int n_start, int n_end) "co %p offet %" PRIx64 " n_start %d n_end %d" +qcow2_alloc_clusters_offset(void *co, uint64_t offset, int num) "co %p offet %" PRIx64 " num %d" qcow2_handle_copied(void *co, uint64_t guest_offset, uint64_t host_offset, uint64_t bytes) "co %p guest_offet %" PRIx64 " host_offset %" PRIx64 " bytes %" PRIx64 qcow2_handle_alloc(void *co, uint64_t guest_offset, uint64_t host_offset, uint64_t bytes) "co %p guest_offet %" PRIx64 " host_offset %" PRIx64 " bytes %" PRIx64 qcow2_do_alloc_clusters_offset(void *co, uint64_t guest_offset, uint64_t host_offset, int nb_clusters) "co %p guest_offet %" PRIx64 " host_offset %" PRIx64 " nb_clusters %d" |