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authorIlya Dryomov <idryomov@gmail.com>2020-05-29 20:31:37 +0200
committerIlya Dryomov <idryomov@gmail.com>2020-06-01 23:32:35 +0200
commitd3798acc094c8ff2406e9acc7a9b2c09da994616 (patch)
tree5ada40171a9d15868733c648b3fe6825e045fd07 /net/ceph
parent8ad44d5e0d1eda7e4a0ed382174888476dc81789 (diff)
downloadlinux-d3798acc094c8ff2406e9acc7a9b2c09da994616.tar.bz2
libceph: support for alloc hint flags
Allow indicating future I/O pattern via flags. This is supported since Kraken (and bluestore persists flags together with expected_object_size and expected_write_size). Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Jason Dillaman <dillaman@redhat.com>
Diffstat (limited to 'net/ceph')
-rw-r--r--net/ceph/osd_client.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 22733e844be1..4fea3c33af2a 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -932,10 +932,14 @@ static void osd_req_op_watch_init(struct ceph_osd_request *req, int which,
op->watch.gen = 0;
}
+/*
+ * @flags: CEPH_OSD_OP_ALLOC_HINT_FLAG_*
+ */
void osd_req_op_alloc_hint_init(struct ceph_osd_request *osd_req,
unsigned int which,
u64 expected_object_size,
- u64 expected_write_size)
+ u64 expected_write_size,
+ u32 flags)
{
struct ceph_osd_req_op *op = _osd_req_op_init(osd_req, which,
CEPH_OSD_OP_SETALLOCHINT,
@@ -943,6 +947,7 @@ void osd_req_op_alloc_hint_init(struct ceph_osd_request *osd_req,
op->alloc_hint.expected_object_size = expected_object_size;
op->alloc_hint.expected_write_size = expected_write_size;
+ op->alloc_hint.flags = flags;
/*
* CEPH_OSD_OP_SETALLOCHINT op is advisory and therefore deemed
@@ -1018,6 +1023,7 @@ static u32 osd_req_encode_op(struct ceph_osd_op *dst,
cpu_to_le64(src->alloc_hint.expected_object_size);
dst->alloc_hint.expected_write_size =
cpu_to_le64(src->alloc_hint.expected_write_size);
+ dst->alloc_hint.flags = cpu_to_le32(src->alloc_hint.flags);
break;
case CEPH_OSD_OP_SETXATTR:
case CEPH_OSD_OP_CMPXATTR: