pnfs: refactor send_layoutget
Pull out the alloc/init part for eventual reuse by OPEN. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
parent
f86c3ac502
commit
587f03deb6
|
@ -915,18 +915,12 @@ pnfs_layoutgets_blocked(const struct pnfs_layout_hdr *lo)
|
|||
test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);
|
||||
}
|
||||
|
||||
/*
|
||||
* Get layout from server.
|
||||
* for now, assume that whole file layouts are requested.
|
||||
* arg->offset: 0
|
||||
* arg->length: all ones
|
||||
*/
|
||||
static struct pnfs_layout_segment *
|
||||
send_layoutget(struct pnfs_layout_hdr *lo,
|
||||
static struct nfs4_layoutget *
|
||||
pnfs_alloc_init_layoutget_args(struct pnfs_layout_hdr *lo,
|
||||
struct nfs_open_context *ctx,
|
||||
nfs4_stateid *stateid,
|
||||
const struct pnfs_layout_range *range,
|
||||
long *timeout, gfp_t gfp_flags)
|
||||
gfp_t gfp_flags)
|
||||
{
|
||||
struct inode *ino = lo->plh_inode;
|
||||
struct nfs_server *server = NFS_SERVER(ino);
|
||||
|
@ -935,14 +929,9 @@ send_layoutget(struct pnfs_layout_hdr *lo,
|
|||
|
||||
dprintk("--> %s\n", __func__);
|
||||
|
||||
/*
|
||||
* Synchronously retrieve layout information from server and
|
||||
* store in lseg. If we race with a concurrent seqid morphing
|
||||
* op, then re-send the LAYOUTGET.
|
||||
*/
|
||||
lgp = kzalloc(sizeof(*lgp), gfp_flags);
|
||||
if (lgp == NULL)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
return NULL;
|
||||
|
||||
i_size = i_size_read(ino);
|
||||
|
||||
|
@ -963,8 +952,7 @@ send_layoutget(struct pnfs_layout_hdr *lo,
|
|||
nfs4_stateid_copy(&lgp->args.stateid, stateid);
|
||||
lgp->gfp_flags = gfp_flags;
|
||||
lgp->cred = lo->plh_lc_cred;
|
||||
|
||||
return nfs4_proc_layoutget(lgp, timeout, gfp_flags);
|
||||
return lgp;
|
||||
}
|
||||
|
||||
static void pnfs_clear_layoutcommit(struct inode *inode,
|
||||
|
@ -1694,6 +1682,7 @@ pnfs_update_layout(struct inode *ino,
|
|||
struct nfs_client *clp = server->nfs_client;
|
||||
struct pnfs_layout_hdr *lo = NULL;
|
||||
struct pnfs_layout_segment *lseg = NULL;
|
||||
struct nfs4_layoutget *lgp;
|
||||
nfs4_stateid stateid;
|
||||
long timeout = 0;
|
||||
unsigned long giveup = jiffies + (clp->cl_lease_time << 1);
|
||||
|
@ -1838,7 +1827,15 @@ lookup_again:
|
|||
if (arg.length != NFS4_MAX_UINT64)
|
||||
arg.length = PAGE_ALIGN(arg.length);
|
||||
|
||||
lseg = send_layoutget(lo, ctx, &stateid, &arg, &timeout, gfp_flags);
|
||||
lgp = pnfs_alloc_init_layoutget_args(lo, ctx, &stateid, &arg, gfp_flags);
|
||||
if (!lgp) {
|
||||
trace_pnfs_update_layout(ino, pos, count, iomode, lo, NULL,
|
||||
PNFS_UPDATE_LAYOUT_NOMEM);
|
||||
atomic_dec(&lo->plh_outstanding);
|
||||
goto out_put_layout_hdr;
|
||||
}
|
||||
|
||||
lseg = nfs4_proc_layoutget(lgp, &timeout, gfp_flags);
|
||||
trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg,
|
||||
PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET);
|
||||
atomic_dec(&lo->plh_outstanding);
|
||||
|
|
Loading…
Reference in a new issue