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pnfs: move allocations out of nfs4_proc_layoutget

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They work better in the new alloc_init function.

Signed-off-by: Fred Isaman <fred.isaman@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Fred Isaman 2016-09-19 17:47:09 -04:00 committed by Trond Myklebust
parent 587f03deb6
commit dacb452db8
3 changed files with 17 additions and 14 deletions
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15
fs/nfs/nfs4proc.c
View File

@ -8698,7 +8698,7 @@ out:
return status;
}
static size_t max_response_pages(struct nfs_server *server)
size_t max_response_pages(struct nfs_server *server)
{
u32 max_resp_sz = server->nfs_client->cl_session->fc_attrs.max_resp_sz;
return nfs_page_array_len(0, max_resp_sz);
@ -8719,7 +8719,7 @@ static void nfs4_free_pages(struct page **pages, size_t size)
kfree(pages);
}
static struct page **nfs4_alloc_pages(size_t size, gfp_t gfp_flags)
struct page **nfs4_alloc_pages(size_t size, gfp_t gfp_flags)
{
struct page **pages;
int i;
@ -8765,11 +8765,10 @@ static const struct rpc_call_ops nfs4_layoutget_call_ops = {
};
struct pnfs_layout_segment *
nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout, gfp_t gfp_flags)
nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout)
{
struct inode *inode = lgp->args.inode;
struct nfs_server *server = NFS_SERVER(inode);
size_t max_pages = max_response_pages(server);
struct rpc_task *task;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LAYOUTGET],
@ -8796,14 +8795,6 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout, gfp_t gfp_flags)
/* nfs4_layoutget_release calls pnfs_put_layout_hdr */
pnfs_get_layout_hdr(NFS_I(inode)->layout);
lgp->args.layout.pages = nfs4_alloc_pages(max_pages, gfp_flags);
if (!lgp->args.layout.pages) {
nfs4_layoutget_release(lgp);
return ERR_PTR(-ENOMEM);
}
lgp->args.layout.pglen = max_pages * PAGE_SIZE;
lgp->res.layoutp = &lgp->args.layout;
nfs4_init_sequence(&lgp->args.seq_args, &lgp->res.seq_res, 0, 0);
task = rpc_run_task(&task_setup_data);

12
fs/nfs/pnfs.c
View File

@ -924,6 +924,7 @@ pnfs_alloc_init_layoutget_args(struct pnfs_layout_hdr *lo,
{
struct inode *ino = lo->plh_inode;
struct nfs_server *server = NFS_SERVER(ino);
size_t max_pages = max_response_pages(server);
struct nfs4_layoutget *lgp;
loff_t i_size;
@ -933,6 +934,15 @@ pnfs_alloc_init_layoutget_args(struct pnfs_layout_hdr *lo,
if (lgp == NULL)
return NULL;
lgp->args.layout.pages = nfs4_alloc_pages(max_pages, gfp_flags);
if (!lgp->args.layout.pages) {
kfree(lgp);
return NULL;
}
lgp->args.layout.pglen = max_pages * PAGE_SIZE;
lgp->res.layoutp = &lgp->args.layout;
i_size = i_size_read(ino);
lgp->args.minlength = PAGE_SIZE;
@ -1835,7 +1845,7 @@ lookup_again:
goto out_put_layout_hdr;
}
lseg = nfs4_proc_layoutget(lgp, &timeout, gfp_flags);
lseg = nfs4_proc_layoutget(lgp, &timeout);
trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg,
PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET);
atomic_dec(&lo->plh_outstanding);

4
fs/nfs/pnfs.h
View File

@ -224,10 +224,12 @@ extern int pnfs_register_layoutdriver(struct pnfs_layoutdriver_type *);
extern void pnfs_unregister_layoutdriver(struct pnfs_layoutdriver_type *);
/* nfs4proc.c */
extern size_t max_response_pages(struct nfs_server *server);
extern struct page **nfs4_alloc_pages(size_t size, gfp_t gfp_flags);
extern int nfs4_proc_getdeviceinfo(struct nfs_server *server,
struct pnfs_device *dev,
struct rpc_cred *cred);
extern struct pnfs_layout_segment* nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout, gfp_t gfp_flags);
extern struct pnfs_layout_segment* nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout);
extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync);
/* pnfs.c */