pnfs: Change pnfs_alloc_init_layoutget_args call signature
Don't send in a layout, instead use the (possibly NULL) inode. This is needed for LAYOUTGET attached to an OPEN where the inode is not yet set. Signed-off-by: Fred Isaman <fred.isaman@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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1b146fcff7
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5e36e2a941
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@ -916,18 +916,31 @@ pnfs_layoutgets_blocked(const struct pnfs_layout_hdr *lo)
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test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);
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}
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static struct nfs_server *
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pnfs_find_server(struct inode *inode, struct nfs_open_context *ctx)
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{
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struct nfs_server *server;
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if (inode)
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server = NFS_SERVER(inode);
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else {
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struct dentry *parent_dir = dget_parent(ctx->dentry);
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server = NFS_SERVER(parent_dir->d_inode);
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dput(parent_dir);
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}
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return server;
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}
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static struct nfs4_layoutget *
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pnfs_alloc_init_layoutget_args(struct pnfs_layout_hdr *lo,
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pnfs_alloc_init_layoutget_args(struct inode *ino,
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struct nfs_open_context *ctx,
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nfs4_stateid *stateid,
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const struct pnfs_layout_range *range,
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gfp_t gfp_flags)
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{
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struct inode *ino = lo->plh_inode;
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struct nfs_server *server = NFS_SERVER(ino);
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struct nfs_server *server = pnfs_find_server(ino, ctx);
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size_t max_pages = max_response_pages(server);
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struct nfs4_layoutget *lgp;
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loff_t i_size;
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dprintk("--> %s\n", __func__);
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@ -944,16 +957,19 @@ pnfs_alloc_init_layoutget_args(struct pnfs_layout_hdr *lo,
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lgp->res.layoutp = &lgp->args.layout;
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i_size = i_size_read(ino);
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lgp->args.minlength = PAGE_SIZE;
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if (lgp->args.minlength > range->length)
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lgp->args.minlength = range->length;
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if (range->iomode == IOMODE_READ) {
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if (range->offset >= i_size)
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lgp->args.minlength = 0;
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else if (i_size - range->offset < lgp->args.minlength)
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lgp->args.minlength = i_size - range->offset;
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if (ino) {
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loff_t i_size = i_size_read(ino);
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if (range->iomode == IOMODE_READ) {
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if (range->offset >= i_size)
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lgp->args.minlength = 0;
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else if (i_size - range->offset < lgp->args.minlength)
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lgp->args.minlength = i_size - range->offset;
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}
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}
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lgp->args.maxcount = PNFS_LAYOUT_MAXSIZE;
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pnfs_copy_range(&lgp->args.range, range);
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@ -962,7 +978,7 @@ pnfs_alloc_init_layoutget_args(struct pnfs_layout_hdr *lo,
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lgp->args.ctx = get_nfs_open_context(ctx);
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nfs4_stateid_copy(&lgp->args.stateid, stateid);
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lgp->gfp_flags = gfp_flags;
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lgp->cred = lo->plh_lc_cred;
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lgp->cred = ctx->cred;
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return lgp;
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}
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@ -1838,7 +1854,7 @@ lookup_again:
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if (arg.length != NFS4_MAX_UINT64)
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arg.length = PAGE_ALIGN(arg.length);
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lgp = pnfs_alloc_init_layoutget_args(lo, ctx, &stateid, &arg, gfp_flags);
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lgp = pnfs_alloc_init_layoutget_args(ino, ctx, &stateid, &arg, gfp_flags);
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if (!lgp) {
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trace_pnfs_update_layout(ino, pos, count, iomode, lo, NULL,
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PNFS_UPDATE_LAYOUT_NOMEM);
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