add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/nfs/blocklayout/blocklayout.c
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@@ -476,7 +476,7 @@
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 	err = ext_tree_remove(bl, true, 0, LLONG_MAX);
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 	WARN_ON(err);
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-	kfree(bl);
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+	kfree_rcu(bl, bl_layout.plh_rcu);
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 }
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 static struct pnfs_layout_hdr *__bl_alloc_layout_hdr(struct inode *inode,
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@@ -584,7 +584,7 @@
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 static struct nfs4_deviceid_node *
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 bl_find_get_deviceid(struct nfs_server *server,
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-		const struct nfs4_deviceid *id, struct rpc_cred *cred,
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+		const struct nfs4_deviceid *id, const struct cred *cred,
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 		gfp_t gfp_mask)
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 {
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 	struct nfs4_deviceid_node *node;
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@@ -753,7 +753,7 @@
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 	case -ENODEV:
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 		/* Our extent block devices are unavailable */
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 		set_bit(NFS_LSEG_UNAVAILABLE, &lseg->pls_flags);
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-		/* Fall through */
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+		fallthrough;
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 	case 0:
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 		return lseg;
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 	default:
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@@ -896,7 +896,7 @@
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 	end = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
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 	if (end != inode->i_mapping->nrpages) {
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 		rcu_read_lock();
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-		end = page_cache_next_hole(mapping, idx + 1, ULONG_MAX);
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+		end = page_cache_next_miss(mapping, idx + 1, ULONG_MAX);
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 		rcu_read_unlock();
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 	}
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