---

yaml
---
r: 132645
b: refs/heads/master
c: 8d80ce8
h: refs/heads/master
i:
  132643: b8fc29e
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 703a3cd72817e99201cef84a8a7aecc60b2b3581
+refs/heads/master: 8d80ce80e1d58ba9cd3e3972b112cccd6b4008f4

trunk/arch/mips/include/asm/mipsregs.h

@@ -1391,36 +1391,36 @@ static inline void tlb_write_random(void)
 static inline unsigned int					\
 set_c0_##name(unsigned int set)					\
 {								\
-	unsigned int res;					\
+	unsigned int res, new;					\
 								\
 	res = read_c0_##name();					\
-	res |= set;						\
-	write_c0_##name(res);					\
+	new = res | set;					\
+	write_c0_##name(new);					\
 								\
 	return res;						\
 }								\
 								\
 static inline unsigned int					\
 clear_c0_##name(unsigned int clear)				\
 {								\
-	unsigned int res;					\
+	unsigned int res, new;					\
 								\
 	res = read_c0_##name();					\
-	res &= ~clear;						\
-	write_c0_##name(res);					\
+	new = res & ~clear;					\
+	write_c0_##name(new);					\
 								\
 	return res;						\
 }								\
 								\
 static inline unsigned int					\
-change_c0_##name(unsigned int change, unsigned int new)		\
+change_c0_##name(unsigned int change, unsigned int val)		\
 {								\
-	unsigned int res;					\
+	unsigned int res, new;					\
 								\
 	res = read_c0_##name();					\
-	res &= ~change;						\
-	res |= (new & change);					\
-	write_c0_##name(res);					\
+	new = res & ~change;					\
+	new |= (val & change);					\
+	write_c0_##name(new);					\
 								\
 	return res;						\
 }

trunk/arch/mips/kernel/linux32.c

@@ -32,7 +32,6 @@
 #include <linux/module.h>
 #include <linux/binfmts.h>
 #include <linux/security.h>
-#include <linux/syscalls.h>
 #include <linux/compat.h>
 #include <linux/vfs.h>
 #include <linux/ipc.h>

trunk/arch/mips/kernel/traps.c

@@ -1520,7 +1520,9 @@ void __cpuinit per_cpu_trap_init(void)
 #endif /* CONFIG_MIPS_MT_SMTC */
 
 	if (cpu_has_veic || cpu_has_vint) {
+		unsigned long sr = set_c0_status(ST0_BEV);
 		write_c0_ebase(ebase);
+		write_c0_status(sr);
 		/* Setting vector spacing enables EI/VI mode  */
 		change_c0_intctl(0x3e0, VECTORSPACING);
 	}
@@ -1602,8 +1604,6 @@ void __cpuinit set_uncached_handler(unsigned long offset, void *addr,
 #ifdef CONFIG_64BIT
 	unsigned long uncached_ebase = TO_UNCAC(ebase);
 #endif
-	if (cpu_has_mips_r2)
-		uncached_ebase += (read_c0_ebase() & 0x3ffff000);
 
 	if (!addr)
 		panic(panic_null_cerr);
@@ -1635,9 +1635,11 @@ void __init trap_init(void)
 		return;	/* Already done */
 #endif
 
-	if (cpu_has_veic || cpu_has_vint)
-		ebase = (unsigned long) alloc_bootmem_low_pages(0x200 + VECTORSPACING*64);
-	else {
+	if (cpu_has_veic || cpu_has_vint) {
+		unsigned long size = 0x200 + VECTORSPACING*64;
+		ebase = (unsigned long)
+			__alloc_bootmem(size, 1 << fls(size), 0);
+	} else {
 		ebase = CAC_BASE;
 		if (cpu_has_mips_r2)
 			ebase += (read_c0_ebase() & 0x3ffff000);

trunk/arch/mips/mm/c-r4k.c

@@ -780,7 +780,7 @@ static void __cpuinit probe_pcache(void)
 		c->dcache.ways = 2;
 		c->dcache.waybit = 0;
 
-		c->options |= MIPS_CPU_CACHE_CDEX_P;
+		c->options |= MIPS_CPU_CACHE_CDEX_P | MIPS_CPU_PREFETCH;
 		break;
 
 	case CPU_TX49XX:

trunk/arch/mips/mm/dma-default.c

@@ -225,7 +225,7 @@ void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
 	if (!plat_device_is_coherent(dev) && direction != DMA_TO_DEVICE) {
 		unsigned long addr;
 
-		addr = plat_dma_addr_to_phys(dma_address);
+		addr = dma_addr_to_virt(dma_address);
 		dma_cache_wback_inv(addr, size);
 	}
 

trunk/fs/inode.c

@@ -1300,6 +1300,40 @@ sector_t bmap(struct inode * inode, sector_t block)
 }
 EXPORT_SYMBOL(bmap);
 
+/*
+ * With relative atime, only update atime if the previous atime is
+ * earlier than either the ctime or mtime or if at least a day has
+ * passed since the last atime update.
+ */
+static int relatime_need_update(struct vfsmount *mnt, struct inode *inode,
+			     struct timespec now)
+{
+
+	if (!(mnt->mnt_flags & MNT_RELATIME))
+		return 1;
+	/*
+	 * Is mtime younger than atime? If yes, update atime:
+	 */
+	if (timespec_compare(&inode->i_mtime, &inode->i_atime) >= 0)
+		return 1;
+	/*
+	 * Is ctime younger than atime? If yes, update atime:
+	 */
+	if (timespec_compare(&inode->i_ctime, &inode->i_atime) >= 0)
+		return 1;
+
+	/*
+	 * Is the previous atime value older than a day? If yes,
+	 * update atime:
+	 */
+	if ((long)(now.tv_sec - inode->i_atime.tv_sec) >= 24*60*60)
+		return 1;
+	/*
+	 * Good, we can skip the atime update:
+	 */
+	return 0;
+}
+
 /**
  *	touch_atime	-	update the access time
  *	@mnt: mount the inode is accessed on
@@ -1327,17 +1361,12 @@ void touch_atime(struct vfsmount *mnt, struct dentry *dentry)
 		goto out;
 	if ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode))
 		goto out;
-	if (mnt->mnt_flags & MNT_RELATIME) {
-		/*
-		 * With relative atime, only update atime if the previous
-		 * atime is earlier than either the ctime or mtime.
-		 */
-		if (timespec_compare(&inode->i_mtime, &inode->i_atime) < 0 &&
-		    timespec_compare(&inode->i_ctime, &inode->i_atime) < 0)
-			goto out;
-	}
 
 	now = current_fs_time(inode->i_sb);
+
+	if (!relatime_need_update(mnt, inode, now))
+		goto out;
+
 	if (timespec_equal(&inode->i_atime, &now))
 		goto out;
 

trunk/fs/namespace.c

@@ -780,6 +780,7 @@ static void show_mnt_opts(struct seq_file *m, struct vfsmount *mnt)
 		{ MNT_NOATIME, ",noatime" },
 		{ MNT_NODIRATIME, ",nodiratime" },
 		{ MNT_RELATIME, ",relatime" },
+		{ MNT_STRICTATIME, ",strictatime" },
 		{ 0, NULL }
 	};
 	const struct proc_fs_info *fs_infop;
@@ -1919,6 +1920,9 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
 	if (data_page)
 		((char *)data_page)[PAGE_SIZE - 1] = 0;
 
+	/* Default to relatime */
+	mnt_flags |= MNT_RELATIME;
+
 	/* Separate the per-mountpoint flags */
 	if (flags & MS_NOSUID)
 		mnt_flags |= MNT_NOSUID;
@@ -1930,13 +1934,14 @@ long do_mount(char *dev_name, char *dir_name, char *type_page,
 		mnt_flags |= MNT_NOATIME;
 	if (flags & MS_NODIRATIME)
 		mnt_flags |= MNT_NODIRATIME;
-	if (flags & MS_RELATIME)
-		mnt_flags |= MNT_RELATIME;
+	if (flags & MS_STRICTATIME)
+		mnt_flags &= ~(MNT_RELATIME | MNT_NOATIME);
 	if (flags & MS_RDONLY)
 		mnt_flags |= MNT_READONLY;
 
 	flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE |
-		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT);
+		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
+		   MS_STRICTATIME);
 
 	/* ... and get the mountpoint */
 	retval = kern_path(dir_name, LOOKUP_FOLLOW, &path);

trunk/include/linux/fs.h

@@ -141,6 +141,7 @@ struct inodes_stat_t {
 #define MS_RELATIME	(1<<21)	/* Update atime relative to mtime/ctime. */
 #define MS_KERNMOUNT	(1<<22) /* this is a kern_mount call */
 #define MS_I_VERSION	(1<<23) /* Update inode I_version field */
+#define MS_STRICTATIME	(1<<24) /* Always perform atime updates */
 #define MS_ACTIVE	(1<<30)
 #define MS_NOUSER	(1<<31)
 

trunk/include/linux/mount.h

@@ -27,6 +27,7 @@ struct mnt_namespace;
 #define MNT_NODIRATIME	0x10
 #define MNT_RELATIME	0x20
 #define MNT_READONLY	0x40	/* does the user want this to be r/o? */
+#define MNT_STRICTATIME 0x80
 
 #define MNT_SHRINKABLE	0x100
 #define MNT_IMBALANCED_WRITE_COUNT	0x200 /* just for debugging */

trunk/mm/page-writeback.c

@@ -66,7 +66,7 @@ static inline long sync_writeback_pages(void)
 /*
  * Start background writeback (via pdflush) at this percentage
  */
-int dirty_background_ratio = 5;
+int dirty_background_ratio = 10;
 
 /*
  * dirty_background_bytes starts at 0 (disabled) so that it is a function of
@@ -83,7 +83,7 @@ int vm_highmem_is_dirtyable;
 /*
  * The generator of dirty data starts writeback at this percentage
  */
-int vm_dirty_ratio = 10;
+int vm_dirty_ratio = 20;
 
 /*
  * vm_dirty_bytes starts at 0 (disabled) so that it is a function of