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| author | Boaz Harrosh <bharrosh@panasas.com> | 2011-05-22 20:54:13 +0400 |
|---|---|---|
| committer | Boaz Harrosh <bharrosh@panasas.com> | 2011-05-29 21:55:00 +0400 |
| commit | a0fe8bf427f4987d7b82678292ca03cfd7331467 (patch) | |
| tree | d995bd164b03dde89da24af979931c2490fe9414 /fs/nfs/objlayout/objlayout.c | |
| parent | ac7db7264ac3314cae09893bc838fcb7e83267a4 (diff) | |
| download | linux-a0fe8bf427f4987d7b82678292ca03cfd7331467.tar.xz | |
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>
Diffstat (limited to 'fs/nfs/objlayout/objlayout.c')
| -rw-r--r-- | fs/nfs/objlayout/objlayout.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/fs/nfs/objlayout/objlayout.c b/fs/nfs/objlayout/objlayout.c index f7caecff6b4d..dc3956c0de80 100644 --- a/fs/nfs/objlayout/objlayout.c +++ b/fs/nfs/objlayout/objlayout.c @@ -225,6 +225,7 @@ objlayout_iodone(struct objlayout_io_state *state) struct objlayout *objlay = OBJLAYOUT(state->lseg->pls_layout); spin_lock(&objlay->lock); + objlay->delta_space_valid = OBJ_DSU_INVALID; list_add(&objlay->err_list, &state->err_list); spin_unlock(&objlay->lock); } @@ -433,6 +434,35 @@ objlayout_write_pagelist(struct nfs_write_data *wdata, return PNFS_ATTEMPTED; } +void +objlayout_encode_layoutcommit(struct pnfs_layout_hdr *pnfslay, + struct xdr_stream *xdr, + const struct nfs4_layoutcommit_args *args) +{ + struct objlayout *objlay = OBJLAYOUT(pnfslay); + struct pnfs_osd_layoutupdate lou; + __be32 *start; + + dprintk("%s: Begin\n", __func__); + + spin_lock(&objlay->lock); + lou.dsu_valid = (objlay->delta_space_valid == OBJ_DSU_VALID); + lou.dsu_delta = objlay->delta_space_used; + objlay->delta_space_used = 0; + objlay->delta_space_valid = OBJ_DSU_INIT; + lou.olu_ioerr_flag = !list_empty(&objlay->err_list); + spin_unlock(&objlay->lock); + + start = xdr_reserve_space(xdr, 4); + + BUG_ON(pnfs_osd_xdr_encode_layoutupdate(xdr, &lou)); + + *start = cpu_to_be32((xdr->p - start - 1) * 4); + + dprintk("%s: Return delta_space_used %lld err %d\n", __func__, + lou.dsu_delta, lou.olu_ioerr_flag); +} + static int err_prio(u32 oer_errno) { |