pnfs-obj: objlayout_encode_layoutcommit implementation
* Define API for io-engines to report delta_space_used in IOs * Encode the osd-layout specific information of the layoutcommit XDR buffer. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com>
This commit is contained in:
@@ -51,6 +51,14 @@
|
||||
struct objlayout {
|
||||
struct pnfs_layout_hdr pnfs_layout;
|
||||
|
||||
/* for layout_commit */
|
||||
enum osd_delta_space_valid_enum {
|
||||
OBJ_DSU_INIT = 0,
|
||||
OBJ_DSU_VALID,
|
||||
OBJ_DSU_INVALID,
|
||||
} delta_space_valid;
|
||||
s64 delta_space_used; /* consumed by write ops */
|
||||
|
||||
/* for layout_return */
|
||||
spinlock_t lock;
|
||||
struct list_head err_list;
|
||||
@@ -119,6 +127,23 @@ extern void objlayout_io_set_result(struct objlayout_io_state *state,
|
||||
unsigned index, struct pnfs_osd_objid *pooid,
|
||||
int osd_error, u64 offset, u64 length, bool is_write);
|
||||
|
||||
static inline void
|
||||
objlayout_add_delta_space_used(struct objlayout_io_state *state, s64 space_used)
|
||||
{
|
||||
struct objlayout *objlay = OBJLAYOUT(state->lseg->pls_layout);
|
||||
|
||||
/* If one of the I/Os errored out and the delta_space_used was
|
||||
* invalid we render the complete report as invalid. Protocol mandate
|
||||
* the DSU be accurate or not reported.
|
||||
*/
|
||||
spin_lock(&objlay->lock);
|
||||
if (objlay->delta_space_valid != OBJ_DSU_INVALID) {
|
||||
objlay->delta_space_valid = OBJ_DSU_VALID;
|
||||
objlay->delta_space_used += space_used;
|
||||
}
|
||||
spin_unlock(&objlay->lock);
|
||||
}
|
||||
|
||||
extern void objlayout_read_done(struct objlayout_io_state *state,
|
||||
ssize_t status, bool sync);
|
||||
extern void objlayout_write_done(struct objlayout_io_state *state,
|
||||
@@ -149,6 +174,11 @@ extern enum pnfs_try_status objlayout_write_pagelist(
|
||||
struct nfs_write_data *,
|
||||
int how);
|
||||
|
||||
extern void objlayout_encode_layoutcommit(
|
||||
struct pnfs_layout_hdr *,
|
||||
struct xdr_stream *,
|
||||
const struct nfs4_layoutcommit_args *);
|
||||
|
||||
extern void objlayout_encode_layoutreturn(
|
||||
struct pnfs_layout_hdr *,
|
||||
struct xdr_stream *,
|
||||
|
Reference in New Issue
Block a user