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| author | Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> | 2010-12-06 16:08:02 +0000 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-12-17 16:11:04 +0100 |
| commit | eabba580e6bb8d6b969c1368c6f90d72b4cde4f4 (patch) | |
| tree | 879b2822adbf7fea8d7ac7a1166f22d40d3b4d77 /trace-events | |
| parent | 298800cae72eb2a549374189e87615b2b0b79262 (diff) | |
| download | qemu-eabba580e6bb8d6b969c1368c6f90d72b4cde4f4.zip qemu-eabba580e6bb8d6b969c1368c6f90d72b4cde4f4.tar.gz qemu-eabba580e6bb8d6b969c1368c6f90d72b4cde4f4.tar.bz2 | |
qed: Read/write support
This patch implements the read/write state machine. Operations are
fully asynchronous and multiple operations may be active at any time.
Allocating writes lock tables to ensure metadata updates do not
interfere with each other. If two allocating writes need to update the
same L2 table they will run sequentially. If two allocating writes need
to update different L2 tables they will run in parallel.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'trace-events')
| -rw-r--r-- | trace-events | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/trace-events b/trace-events index 59f97a2..e8fed0f 100644 --- a/trace-events +++ b/trace-events @@ -203,3 +203,13 @@ disable qed_read_table(void *s, uint64_t offset, void *table) "s %p offset %"PRI disable qed_read_table_cb(void *s, void *table, int ret) "s %p table %p ret %d" disable qed_write_table(void *s, uint64_t offset, void *table, unsigned int index, unsigned int n) "s %p offset %"PRIu64" table %p index %u n %u" disable qed_write_table_cb(void *s, void *table, int flush, int ret) "s %p table %p flush %d ret %d" + +# block/qed.c +disable qed_aio_complete(void *s, void *acb, int ret) "s %p acb %p ret %d" +disable qed_aio_setup(void *s, void *acb, int64_t sector_num, int nb_sectors, void *opaque, int is_write) "s %p acb %p sector_num %"PRId64" nb_sectors %d opaque %p is_write %d" +disable qed_aio_next_io(void *s, void *acb, int ret, uint64_t cur_pos) "s %p acb %p ret %d cur_pos %"PRIu64"" +disable qed_aio_read_data(void *s, void *acb, int ret, uint64_t offset, size_t len) "s %p acb %p ret %d offset %"PRIu64" len %zu" +disable qed_aio_write_data(void *s, void *acb, int ret, uint64_t offset, size_t len) "s %p acb %p ret %d offset %"PRIu64" len %zu" +disable qed_aio_write_prefill(void *s, void *acb, uint64_t start, size_t len, uint64_t offset) "s %p acb %p start %"PRIu64" len %zu offset %"PRIu64"" +disable qed_aio_write_postfill(void *s, void *acb, uint64_t start, size_t len, uint64_t offset) "s %p acb %p start %"PRIu64" len %zu offset %"PRIu64"" +disable qed_aio_write_main(void *s, void *acb, int ret, uint64_t offset, size_t len) "s %p acb %p ret %d offset %"PRIu64" len %zu" |