27 files changed, 91 insertions, 89 deletions

diff --git a/include/linux/fcntl.h b/include/linux/fcntl.h
index 8a7c82151de9..c52a63755fdd 100644
--- a/include/linux/fcntl.h
+++ b/include/linux/fcntl.h
@@ -23,6 +23,13 @@
 #define DN_ATTRIB       0x00000020      /* File changed attibutes */
 #define DN_MULTISHOT    0x80000000      /* Don't remove notifier */
 
+#define AT_FDCWD                -100    /* Special value used to indicate
+                                           openat should use the current
+                                           working directory. */
+#define AT_SYMLINK_NOFOLLOW     0x100   /* Do not follow symbolic links.  */
+#define AT_REMOVEDIR            0x200   /* Remove directory instead of
+                                           unlinking file.  */
+
 #ifdef __KERNEL__
 
 #ifndef force_o_largefile
diff --git a/include/linux/fs.h b/include/linux/fs.h
index b77f2608eef9..84bb449b9b01 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1340,7 +1340,8 @@ static inline int break_lease(struct inode *inode, unsigned int mode)
 
 extern int do_truncate(struct dentry *, loff_t start, unsigned int time_attrs,
                        struct file *filp);
-extern long do_sys_open(const char __user *filename, int flags, int mode);
+extern long do_sys_open(int fdf, const char __user *filename, int flags,
+                        int mode);
 extern struct file *filp_open(const char *, int, int);
 extern struct file * dentry_open(struct dentry *, struct vfsmount *, int);
 extern int filp_close(struct file *, fl_owner_t id);
@@ -1479,7 +1480,7 @@ static inline void allow_write_access(struct file *file)
 }
 extern int do_pipe(int *);
 
-extern int open_namei(const char *, int, int, struct nameidata *);
+extern int open_namei(int dfd, const char *, int, int, struct nameidata *);
 extern int may_open(struct nameidata *, int, int);
 
 extern int kernel_read(struct file *, unsigned long, char *, unsigned long);
@@ -1677,6 +1678,8 @@ extern int vfs_readdir(struct file *, filldir_t, void *);
 
 extern int vfs_stat(char __user *, struct kstat *);
 extern int vfs_lstat(char __user *, struct kstat *);
+extern int vfs_stat_fd(int dfd, char __user *, struct kstat *);
+extern int vfs_lstat_fd(int dfd, char __user *, struct kstat *);
 extern int vfs_fstat(unsigned int, struct kstat *);
 
 extern int vfs_ioctl(struct file *, unsigned int, unsigned int, unsigned long);
diff --git a/include/linux/if_ether.h b/include/linux/if_ether.h
index fe26d431de87..7a92c1ce1457 100644
--- a/include/linux/if_ether.h
+++ b/include/linux/if_ether.h
@@ -72,6 +72,7 @@
                                          * over Ethernet
                                          */
 #define ETH_P_AOE       0x88A2          /* ATA over Ethernet            */
+#define ETH_P_TIPC      0x88CA          /* TIPC                         */
 
 /*
  *      Non DIX types. Won't clash for 1500 types.
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 323924edb26a..a5363324cf95 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -228,6 +228,7 @@ extern void dump_stack(void);
         ntohs((addr).s6_addr16[6]), \
         ntohs((addr).s6_addr16[7])
 #define NIP6_FMT "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x"
+#define NIP6_SEQFMT "%04x%04x%04x%04x%04x%04x%04x%04x"
 
 #if defined(__LITTLE_ENDIAN)
 #define HIPQUAD(addr) \
diff --git a/include/linux/libata.h b/include/linux/libata.h
index a43c95f8f968..9e5db2949c58 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -126,16 +126,19 @@ enum {
 
         ATA_FLAG_SUSPENDED      = (1 << 12), /* port is suspended */
 
+        ATA_FLAG_PIO_LBA48      = (1 << 13), /* Host DMA engine is LBA28 only */
+        ATA_FLAG_IRQ_MASK       = (1 << 14), /* Mask IRQ in PIO xfers */
+
         ATA_QCFLAG_ACTIVE       = (1 << 1), /* cmd not yet ack'd to scsi lyer */
         ATA_QCFLAG_SG           = (1 << 3), /* have s/g table? */
         ATA_QCFLAG_SINGLE       = (1 << 4), /* no s/g, just a single buffer */
         ATA_QCFLAG_DMAMAP       = ATA_QCFLAG_SG | ATA_QCFLAG_SINGLE,
 
         /* various lengths of time */
-        ATA_TMOUT_EDD           = 5 * HZ,       /* hueristic */
+        ATA_TMOUT_EDD           = 5 * HZ,       /* heuristic */
         ATA_TMOUT_PIO           = 30 * HZ,
-        ATA_TMOUT_BOOT          = 30 * HZ,      /* hueristic */
-        ATA_TMOUT_BOOT_QUICK    = 7 * HZ,       /* hueristic */
+        ATA_TMOUT_BOOT          = 30 * HZ,      /* heuristic */
+        ATA_TMOUT_BOOT_QUICK    = 7 * HZ,       /* heuristic */
         ATA_TMOUT_CDB           = 30 * HZ,
         ATA_TMOUT_CDB_QUICK     = 5 * HZ,
         ATA_TMOUT_INTERNAL      = 30 * HZ,
@@ -499,6 +502,8 @@ extern int ata_scsi_slave_config(struct scsi_device *sdev);
 /*
  * Timing helpers
  */
+
+extern unsigned int ata_pio_need_iordy(const struct ata_device *);
 extern int ata_timing_compute(struct ata_device *, unsigned short,
                               struct ata_timing *, int, int);
 extern void ata_timing_merge(const struct ata_timing *,
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index d6a53ed6ab6c..bbd2221923c3 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -159,6 +159,7 @@ extern void mpol_rebind_mm(struct mm_struct *mm, nodemask_t *new);
 extern struct mempolicy default_policy;
 extern struct zonelist *huge_zonelist(struct vm_area_struct *vma,
                 unsigned long addr);
+extern unsigned slab_node(struct mempolicy *policy);
 
 extern int policy_zone;
 
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 49cc68af01f8..8ac854f7f190 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -39,24 +39,3 @@ del_page_from_lru(struct zone *zone, struct page *page)
         }
 }
 
-/*
- * Isolate one page from the LRU lists.
- *
- * - zone->lru_lock must be held
- */
-static inline int __isolate_lru_page(struct page *page)
-{
-        if (unlikely(!TestClearPageLRU(page)))
-                return 0;
-
-        if (get_page_testone(page)) {
-                /*
-                 * It is being freed elsewhere
-                 */
-                __put_page(page);
-                SetPageLRU(page);
-                return -ENOENT;
-        }
-
-        return 1;
-}
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 34cbefd2ebde..93a849f742db 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -149,15 +149,17 @@ struct zone {
         unsigned long           pages_scanned;     /* since last reclaim */
         int                     all_unreclaimable; /* All pages pinned */
 
-        /*
-         * Does the allocator try to reclaim pages from the zone as soon
-         * as it fails a watermark_ok() in __alloc_pages?
-         */
-        int                     reclaim_pages;
         /* A count of how many reclaimers are scanning this zone */
         atomic_t                reclaim_in_progress;
 
         /*
+         * timestamp (in jiffies) of the last zone reclaim that did not
+         * result in freeing of pages. This is used to avoid repeated scans
+         * if all memory in the zone is in use.
+         */
+        unsigned long           last_unsuccessful_zone_reclaim;
+
+        /*
          * prev_priority holds the scanning priority for this zone.  It is
          * defined as the scanning priority at which we achieved our reclaim
          * target at the previous try_to_free_pages() or balance_pgdat()
diff --git a/include/linux/namei.h b/include/linux/namei.h
index b699e427c00c..e6698013e4d0 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -56,10 +56,11 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND};
 #define LOOKUP_ACCESS           (0x0400)
 
 extern int FASTCALL(__user_walk(const char __user *, unsigned, struct nameidata *));
+extern int FASTCALL(__user_walk_fd(int dfd, const char __user *, unsigned, struct nameidata *));
 #define user_path_walk(name,nd) \
-        __user_walk(name, LOOKUP_FOLLOW, nd)
+        __user_walk_fd(AT_FDCWD, name, LOOKUP_FOLLOW, nd)
 #define user_path_walk_link(name,nd) \
-        __user_walk(name, 0, nd)
+        __user_walk_fd(AT_FDCWD, name, 0, nd)
 extern int FASTCALL(path_lookup(const char *, unsigned, struct nameidata *));
 extern int FASTCALL(path_walk(const char *, struct nameidata *));
 extern int FASTCALL(link_path_walk(const char *, struct nameidata *));
@@ -67,7 +68,7 @@ extern void path_release(struct nameidata *);
 extern void path_release_on_umount(struct nameidata *);
 
 extern int __user_path_lookup_open(const char __user *, unsigned lookup_flags, struct nameidata *nd, int open_flags);
-extern int path_lookup_open(const char *, unsigned lookup_flags, struct nameidata *, int open_flags);
+extern int path_lookup_open(int dfd, const char *name, unsigned lookup_flags, struct nameidata *, int open_flags);
 extern struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry,
                 int (*open)(struct inode *, struct file *));
 extern struct file *nameidata_to_filp(struct nameidata *nd, int flags);
diff --git a/include/linux/netfilter_ipv6/ip6t_ah.h b/include/linux/netfilter_ipv6/ip6t_ah.h
index c4f0793a0a98..8531879eb464 100644
--- a/include/linux/netfilter_ipv6/ip6t_ah.h
+++ b/include/linux/netfilter_ipv6/ip6t_ah.h
@@ -18,13 +18,4 @@ struct ip6t_ah
 #define IP6T_AH_INV_LEN         0x02    /* Invert the sense of length. */
 #define IP6T_AH_INV_MASK        0x03    /* All possible flags. */
 
-#define MASK_HOPOPTS    128
-#define MASK_DSTOPTS    64
-#define MASK_ROUTING    32
-#define MASK_FRAGMENT   16
-#define MASK_AH         8
-#define MASK_ESP        4
-#define MASK_NONE       2
-#define MASK_PROTO      1
-
 #endif /*_IP6T_AH_H*/
diff --git a/include/linux/netfilter_ipv6/ip6t_esp.h b/include/linux/netfilter_ipv6/ip6t_esp.h
index 01142b98a231..a91b6abc8079 100644
--- a/include/linux/netfilter_ipv6/ip6t_esp.h
+++ b/include/linux/netfilter_ipv6/ip6t_esp.h
@@ -7,15 +7,6 @@ struct ip6t_esp
         u_int8_t  invflags;                     /* Inverse flags */
 };
 
-#define MASK_HOPOPTS    128
-#define MASK_DSTOPTS    64
-#define MASK_ROUTING    32
-#define MASK_FRAGMENT   16
-#define MASK_AH         8
-#define MASK_ESP        4
-#define MASK_NONE       2
-#define MASK_PROTO      1
-
 /* Values for "invflags" field in struct ip6t_esp. */
 #define IP6T_ESP_INV_SPI                0x01    /* Invert the sense of spi. */
 #define IP6T_ESP_INV_MASK       0x01    /* All possible flags. */
diff --git a/include/linux/netfilter_ipv6/ip6t_frag.h b/include/linux/netfilter_ipv6/ip6t_frag.h
index 449a57eca7dd..66070a0d6dfc 100644
--- a/include/linux/netfilter_ipv6/ip6t_frag.h
+++ b/include/linux/netfilter_ipv6/ip6t_frag.h
@@ -21,13 +21,4 @@ struct ip6t_frag
 #define IP6T_FRAG_INV_LEN       0x02    /* Invert the sense of length. */
 #define IP6T_FRAG_INV_MASK      0x03    /* All possible flags. */
 
-#define MASK_HOPOPTS    128
-#define MASK_DSTOPTS    64
-#define MASK_ROUTING    32
-#define MASK_FRAGMENT   16
-#define MASK_AH         8
-#define MASK_ESP        4
-#define MASK_NONE       2
-#define MASK_PROTO      1
-
 #endif /*_IP6T_FRAG_H*/
diff --git a/include/linux/netfilter_ipv6/ip6t_opts.h b/include/linux/netfilter_ipv6/ip6t_opts.h
index e259b6275bd2..a07e36380ae8 100644
--- a/include/linux/netfilter_ipv6/ip6t_opts.h
+++ b/include/linux/netfilter_ipv6/ip6t_opts.h
@@ -20,13 +20,4 @@ struct ip6t_opts
 #define IP6T_OPTS_INV_LEN       0x01    /* Invert the sense of length. */
 #define IP6T_OPTS_INV_MASK      0x01    /* All possible flags. */
 
-#define MASK_HOPOPTS    128
-#define MASK_DSTOPTS    64
-#define MASK_ROUTING    32
-#define MASK_FRAGMENT   16
-#define MASK_AH         8
-#define MASK_ESP        4
-#define MASK_NONE       2
-#define MASK_PROTO      1
-
 #endif /*_IP6T_OPTS_H*/
diff --git a/include/linux/netfilter_ipv6/ip6t_rt.h b/include/linux/netfilter_ipv6/ip6t_rt.h
index f1070fbf2757..52156023e8db 100644
--- a/include/linux/netfilter_ipv6/ip6t_rt.h
+++ b/include/linux/netfilter_ipv6/ip6t_rt.h
@@ -30,13 +30,4 @@ struct ip6t_rt
 #define IP6T_RT_INV_LEN         0x04    /* Invert the sense of length. */
 #define IP6T_RT_INV_MASK        0x07    /* All possible flags. */
 
-#define MASK_HOPOPTS    128
-#define MASK_DSTOPTS    64
-#define MASK_ROUTING    32
-#define MASK_FRAGMENT   16
-#define MASK_AH         8
-#define MASK_ESP        4
-#define MASK_NONE       2
-#define MASK_PROTO      1
-
 #endif /*_IP6T_RT_H*/
diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
index 51c231a1e5a6..ec7c2e872d72 100644
--- a/include/linux/nfsd/nfsd.h
+++ b/include/linux/nfsd/nfsd.h
@@ -124,7 +124,7 @@ int		nfsd_statfs(struct svc_rqst *, struct svc_fh *,
 
 int             nfsd_notify_change(struct inode *, struct iattr *);
 int             nfsd_permission(struct svc_export *, struct dentry *, int);
-void            nfsd_sync_dir(struct dentry *dp);
+int             nfsd_sync_dir(struct dentry *dp);
 
 #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
 #ifdef CONFIG_NFSD_V2_ACL
diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h
index 8903688890ce..77adba7d2281 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/include/linux/nfsd/xdr4.h
@@ -145,8 +145,9 @@ struct nfsd4_lock {
                 } ok;
                 struct nfsd4_lock_denied        denied;
         } u;
-
-        struct nfs4_stateowner *lk_stateowner;
+        /* The lk_replay_owner is the open owner in the open_to_lock_owner
+         * case and the lock owner otherwise: */
+        struct nfs4_stateowner *lk_replay_owner;
 };
 #define lk_new_open_seqid       v.new.open_seqid
 #define lk_new_open_stateid     v.new.open_stateid
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 5403257ae3e7..ecc1fc1f0f04 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1992,6 +1992,7 @@
 #define PCI_VENDOR_ID_DCI               0x6666
 #define PCI_DEVICE_ID_DCI_PCCOM4        0x0001
 #define PCI_DEVICE_ID_DCI_PCCOM8        0x0002
+#define PCI_DEVICE_ID_DCI_PCCOM2        0x0004
 
 #define PCI_VENDOR_ID_INTEL             0x8086
 #define PCI_DEVICE_ID_INTEL_EESSC       0x0008
diff --git a/include/linux/poll.h b/include/linux/poll.h
index f6da702088f4..8e8f6098508a 100644
--- a/include/linux/poll.h
+++ b/include/linux/poll.h
@@ -92,7 +92,11 @@ void zero_fd_set(unsigned long nr, unsigned long *fdset)
         memset(fdset, 0, FDS_BYTES(nr));
 }
 
-extern int do_select(int n, fd_set_bits *fds, long *timeout);
+#define MAX_INT64_SECONDS (((s64)(~((u64)0)>>1)/HZ)-1)
+
+extern int do_select(int n, fd_set_bits *fds, s64 *timeout);
+extern int do_sys_poll(struct pollfd __user * ufds, unsigned int nfds,
+                       s64 *timeout);
 
 #endif /* KERNEL */
 
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2df1a1a2fee5..0cfcd1c7865e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -809,6 +809,7 @@ struct task_struct {
         struct sighand_struct *sighand;
 
         sigset_t blocked, real_blocked;
+        sigset_t saved_sigmask;         /* To be restored with TIF_RESTORE_SIGMASK */
         struct sigpending pending;
 
         unsigned long sas_ss_sp;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index e5fd66c5650b..ad7cc22bd424 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -926,7 +926,7 @@ static inline int skb_tailroom(const struct sk_buff *skb)
  *      Increase the headroom of an empty &sk_buff by reducing the tail
  *      room. This is only allowed for an empty buffer.
  */
-static inline void skb_reserve(struct sk_buff *skb, unsigned int len)
+static inline void skb_reserve(struct sk_buff *skb, int len)
 {
         skb->data += len;
         skb->tail += len;
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index e4086ec8b952..50cab2a09f28 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -246,6 +246,7 @@ struct svc_deferred_req {
         u32                     prot;   /* protocol (UDP or TCP) */
         struct sockaddr_in      addr;
         struct svc_sock         *svsk;  /* where reply must go */
+        u32                     daddr;  /* where reply must come from */
         struct cache_deferred_req handle;
         int                     argslen;
         u32                     args[0];
diff --git a/include/linux/swap.h b/include/linux/swap.h
index e92054d6530b..4a99e4a7fbf3 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -167,6 +167,7 @@ extern void FASTCALL(lru_cache_add_active(struct page *));
 extern void FASTCALL(activate_page(struct page *));
 extern void FASTCALL(mark_page_accessed(struct page *));
 extern void lru_add_drain(void);
+extern int lru_add_drain_all(void);
 extern int rotate_reclaimable_page(struct page *page);
 extern void swap_setup(void);
 
@@ -175,6 +176,17 @@ extern int try_to_free_pages(struct zone **, gfp_t);
 extern int shrink_all_memory(int);
 extern int vm_swappiness;
 
+#ifdef CONFIG_NUMA
+extern int zone_reclaim_mode;
+extern int zone_reclaim(struct zone *, gfp_t, unsigned int);
+#else
+#define zone_reclaim_mode 0
+static inline int zone_reclaim(struct zone *z, gfp_t mask, unsigned int order)
+{
+        return 0;
+}
+#endif
+
 #ifdef CONFIG_MIGRATION
 extern int isolate_lru_page(struct page *p);
 extern int putback_lru_pages(struct list_head *l);
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 3eed47347013..e666d6070569 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -510,9 +510,24 @@ asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3,
 asmlinkage long sys_ioprio_set(int which, int who, int ioprio);
 asmlinkage long sys_ioprio_get(int which, int who);
 asmlinkage long sys_set_mempolicy(int mode, unsigned long __user *nmask,
-                                        unsigned long maxnode);
+                                unsigned long maxnode);
 asmlinkage long sys_migrate_pages(pid_t pid, unsigned long maxnode,
-                        const unsigned long __user *from, const unsigned long __user *to);
+                                const unsigned long __user *from,
+                                const unsigned long __user *to);
+asmlinkage long sys_mbind(unsigned long start, unsigned long len,
+                                unsigned long mode,
+                                unsigned long __user *nmask,
+                                unsigned long maxnode,
+                                unsigned flags);
+asmlinkage long sys_get_mempolicy(int __user *policy,
+                                unsigned long __user *nmask,
+                                unsigned long maxnode,
+                                unsigned long addr, unsigned long flags);
+
+asmlinkage long sys_inotify_init(void);
+asmlinkage long sys_inotify_add_watch(int fd, const char __user *path,
+                                        u32 mask);
+asmlinkage long sys_inotify_rm_watch(int fd, u32 wd);
 
 asmlinkage long sys_spu_run(int fd, __u32 __user *unpc,
                                  __u32 __user *ustatus);
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 7f472127b7b5..8352a7ce5895 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -182,6 +182,7 @@ enum
         VM_SWAP_TOKEN_TIMEOUT=28, /* default time for token time out */
         VM_DROP_PAGECACHE=29,   /* int: nuke lots of pagecache */
         VM_PERCPU_PAGELIST_FRACTION=30,/* int: fraction of pages in each percpu_pagelist */
+        VM_ZONE_RECLAIM_MODE=31,/* reclaim local zone memory before going off node */
 };
 
 
diff --git a/include/linux/time.h b/include/linux/time.h
index f2aca7ec6325..614dd8465839 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -74,7 +74,7 @@ extern void do_gettimeofday(struct timeval *tv);
 extern int do_settimeofday(struct timespec *tv);
 extern int do_sys_settimeofday(struct timespec *tv, struct timezone *tz);
 #define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)
-extern long do_utimes(char __user *filename, struct timeval *times);
+extern long do_utimes(int dfd, char __user *filename, struct timeval *times);
 struct itimerval;
 extern int do_setitimer(int which, struct itimerval *value,
                         struct itimerval *ovalue);
diff --git a/include/linux/tipc_config.h b/include/linux/tipc_config.h
index a52c8c64a5a3..33a653913d94 100644
--- a/include/linux/tipc_config.h
+++ b/include/linux/tipc_config.h
@@ -168,10 +168,13 @@
 #define TIPC_MAX_LINK_NAME      60      /* format = Z.C.N:interface-Z.C.N:interface */
 
 /*
- * Link priority limits (range from 0 to # priorities - 1)
+ * Link priority limits (min, default, max, media default)
  */
 
-#define TIPC_NUM_LINK_PRI 32
+#define TIPC_MIN_LINK_PRI       0
+#define TIPC_DEF_LINK_PRI       10
+#define TIPC_MAX_LINK_PRI       31
+#define TIPC_MEDIA_LINK_PRI     (TIPC_MAX_LINK_PRI + 1)
 
 /*
  * Link tolerance limits (min, default, max), in ms
diff --git a/include/linux/topology.h b/include/linux/topology.h
index 315a5163d6a0..e8eb0040ce3a 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -56,6 +56,14 @@
 #define REMOTE_DISTANCE         20
 #define node_distance(from,to)  ((from) == (to) ? LOCAL_DISTANCE : REMOTE_DISTANCE)
 #endif
+#ifndef RECLAIM_DISTANCE
+/*
+ * If the distance between nodes in a system is larger than RECLAIM_DISTANCE
+ * (in whatever arch specific measurement units returned by node_distance())
+ * then switch on zone reclaim on boot.
+ */
+#define RECLAIM_DISTANCE 20
+#endif
 #ifndef PENALTY_FOR_NODE_WITH_CPUS
 #define PENALTY_FOR_NODE_WITH_CPUS      (1)
 #endif