add snapfs-2.4.20 kernel series

lustre/kernel_patches/series/snapfs-2.4.20

+configurable-x86-stack-2.4.20.patch
+uml-patch-2.4.20-6.patch
+uml-2.4.20-do_mmap_pgoff-fix.patch
+uml-2.4.20-fixes-1.patch
+uml_get_kmem_end_export.patch
+dev_read_only_2.4.20.patch
+exports_2.4.20.patch
+lustre_version.patch
+vfs_intent-2.4.20-vanilla.patch
+invalidate_show.patch
+export-truncate.patch
+iod-stock-24-exports.patch
+uml_check_get_page.patch
+uml_no_panic.patch
+ext-2.4-patch-1.patch
+ext-2.4-patch-2.patch
+ext-2.4-patch-3.patch
+ext-2.4-patch-4.patch
+linux-2.4.20-xattr-0.8.54.patch
+ext3-2.4.20-fixes.patch
+ext3-2.4-ino_t.patch
+ext3-largefile.patch
+ext3-truncate_blocks.patch
+ext3-unmount_sync.patch
+ext3-use-after-free.patch
+ext3-orphan_lock.patch
+ext3-noread-2.4.20.patch
+ext3-delete_thread-2.4.20.patch
+extN-wantedi.patch
+ext3-san-2.4.20.patch
+ext3-map_inode_page.patch
+ext3-error-export.patch
+iopen-2.4.20.patch
+tcp-zero-copy.patch
+jbd-dont-account-blocks-twice.patch
+jbd-commit-tricks.patch
+ext3-no-write-super.patch
+add_page_private.patch
+socket-exports-vanilla.patch
+removepage-2.4.20.patch
+jbd-ctx_switch.patch
+jbd-flushtime.patch
+jbd-get_write_access.patch
+nfs_export_kernel-2.4.20.patch
+ext3-raw-lookup.patch
+ext3-ea-in-inode-2.4.20.patch
+listman-2.4.20.patch
+ext3-trusted_ea-2.4.20.patch
+kernel_text_address-2.4.20-vanilla.patch 
+ext3-xattr-ptr-arith-fix.patch
+gfp_memalloc-2.4.22.patch
+snapfs_core-2.4.20.patch