Merge branch 'tracing/core' into tracing/hw-breakpoints

Conflicts:
	arch/Kconfig
	kernel/trace/trace.h

Merge reason: resolve the conflicts, plus adopt to the new
              ring-buffer APIs.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 files changed, 38 insertions, 76 deletions

diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c
index 1cd3b55ee3d2..2d3f90afe5f1 100644
--- a/fs/xfs/linux-2.6/kmem.c
+++ b/fs/xfs/linux-2.6/kmem.c
@@ -53,7 +53,7 @@ kmem_alloc(size_t size, unsigned int __nocast flags)
 			printk(KERN_ERR "XFS: possible memory allocation "
 					"deadlock in %s (mode:0x%x)\n",
 					__func__, lflags);
-		congestion_wait(WRITE, HZ/50);
+		congestion_wait(BLK_RW_ASYNC, HZ/50);
 	} while (1);
 }
 
@@ -130,7 +130,7 @@ kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
 			printk(KERN_ERR "XFS: possible memory allocation "
 					"deadlock in %s (mode:0x%x)\n",
 					__func__, lflags);
-		congestion_wait(WRITE, HZ/50);
+		congestion_wait(BLK_RW_ASYNC, HZ/50);
 	} while (1);
 }
 
diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c
index 1e9d1246eebc..b23a54506446 100644
--- a/fs/xfs/linux-2.6/xfs_acl.c
+++ b/fs/xfs/linux-2.6/xfs_acl.c
@@ -25,14 +25,10 @@
 #include <linux/posix_acl_xattr.h>
 
 
-#define XFS_ACL_NOT_CACHED	((void *)-1)
-
 /*
  * Locking scheme:
  *  - all ACL updates are protected by inode->i_mutex, which is taken before
  *    calling into this file.
- *  - access and updates to the ip->i_acl and ip->i_default_acl pointers are
- *    protected by inode->i_lock.
  */
 
 STATIC struct posix_acl *
@@ -102,59 +98,35 @@ xfs_acl_to_disk(struct xfs_acl *aclp, const struct posix_acl *acl)
 	}
 }
 
-/*
- * Update the cached ACL pointer in the inode.
- *
- * Because we don't hold any locks while reading/writing the attribute
- * from/to disk another thread could have raced and updated the cached
- * ACL value before us. In that case we release the previous cached value
- * and update it with our new value.
- */
-STATIC void
-xfs_update_cached_acl(struct inode *inode, struct posix_acl **p_acl,
-		struct posix_acl *acl)
-{
-	spin_lock(&inode->i_lock);
-	if (*p_acl && *p_acl != XFS_ACL_NOT_CACHED)
-		posix_acl_release(*p_acl);
-	*p_acl = posix_acl_dup(acl);
-	spin_unlock(&inode->i_lock);
-}
-
 struct posix_acl *
 xfs_get_acl(struct inode *inode, int type)
 {
 	struct xfs_inode *ip = XFS_I(inode);
-	struct posix_acl *acl = NULL, **p_acl;
+	struct posix_acl *acl;
 	struct xfs_acl *xfs_acl;
 	int len = sizeof(struct xfs_acl);
 	char *ea_name;
 	int error;
 
+	acl = get_cached_acl(inode, type);
+	if (acl != ACL_NOT_CACHED)
+		return acl;
+
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		ea_name = SGI_ACL_FILE;
-		p_acl = &ip->i_acl;
 		break;
 	case ACL_TYPE_DEFAULT:
 		ea_name = SGI_ACL_DEFAULT;
-		p_acl = &ip->i_default_acl;
 		break;
 	default:
-		return ERR_PTR(-EINVAL);
+		BUG();
 	}
 
-	spin_lock(&inode->i_lock);
-	if (*p_acl != XFS_ACL_NOT_CACHED)
-		acl = posix_acl_dup(*p_acl);
-	spin_unlock(&inode->i_lock);
-
 	/*
 	 * If we have a cached ACLs value just return it, not need to
 	 * go out to the disk.
 	 */
-	if (acl)
-		return acl;
 
 	xfs_acl = kzalloc(sizeof(struct xfs_acl), GFP_KERNEL);
 	if (!xfs_acl)
@@ -165,7 +137,7 @@ xfs_get_acl(struct inode *inode, int type)
 		/*
 		 * If the attribute doesn't exist make sure we have a negative
 		 * cache entry, for any other error assume it is transient and
-		 * leave the cache entry as XFS_ACL_NOT_CACHED.
+		 * leave the cache entry as ACL_NOT_CACHED.
 		 */
 		if (error == -ENOATTR) {
 			acl = NULL;
@@ -179,7 +151,7 @@ xfs_get_acl(struct inode *inode, int type)
 		goto out;
 
  out_update_cache:
-	xfs_update_cached_acl(inode, p_acl, acl);
+	set_cached_acl(inode, type, acl);
  out:
 	kfree(xfs_acl);
 	return acl;
@@ -189,7 +161,6 @@ STATIC int
 xfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 {
 	struct xfs_inode *ip = XFS_I(inode);
-	struct posix_acl **p_acl;
 	char *ea_name;
 	int error;
 
@@ -199,13 +170,11 @@ xfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		ea_name = SGI_ACL_FILE;
-		p_acl = &ip->i_acl;
 		break;
 	case ACL_TYPE_DEFAULT:
 		if (!S_ISDIR(inode->i_mode))
 			return acl ? -EACCES : 0;
 		ea_name = SGI_ACL_DEFAULT;
-		p_acl = &ip->i_default_acl;
 		break;
 	default:
 		return -EINVAL;
@@ -242,7 +211,7 @@ xfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 	}
 
 	if (!error)
-		xfs_update_cached_acl(inode, p_acl, acl);
+		set_cached_acl(inode, type, acl);
 	return error;
 }
 
@@ -384,30 +353,6 @@ xfs_acl_chmod(struct inode *inode)
 	return error;
 }
 
-void
-xfs_inode_init_acls(struct xfs_inode *ip)
-{
-	/*
-	 * No need for locking, inode is not live yet.
-	 */
-	ip->i_acl = XFS_ACL_NOT_CACHED;
-	ip->i_default_acl = XFS_ACL_NOT_CACHED;
-}
-
-void
-xfs_inode_clear_acls(struct xfs_inode *ip)
-{
-	/*
-	 * No need for locking here, the inode is not live anymore
-	 * and just about to be freed.
-	 */
-	if (ip->i_acl != XFS_ACL_NOT_CACHED)
-		posix_acl_release(ip->i_acl);
-	if (ip->i_default_acl != XFS_ACL_NOT_CACHED)
-		posix_acl_release(ip->i_default_acl);
-}
-
-
 /*
  * System xattr handlers.
  *
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 7ec89fc05b2b..aecf2519db76 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1268,6 +1268,14 @@ xfs_vm_writepage(
 	if (!page_has_buffers(page))
 		create_empty_buffers(page, 1 << inode->i_blkbits, 0);
 
+
+	/*
+	 *  VM calculation for nr_to_write seems off.  Bump it way
+	 *  up, this gets simple streaming writes zippy again.
+	 *  To be reviewed again after Jens' writeback changes.
+	 */
+	wbc->nr_to_write *= 4;
+
 	/*
 	 * Convert delayed allocate, unwritten or unmapped space
 	 * to real space and flush out to disk.
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 1418b916fc27..965df1227d64 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -412,7 +412,7 @@ _xfs_buf_lookup_pages(
 
 			XFS_STATS_INC(xb_page_retries);
 			xfsbufd_wakeup(0, gfp_mask);
-			congestion_wait(WRITE, HZ/50);
+			congestion_wait(BLK_RW_ASYNC, HZ/50);
 			goto retry;
 		}
 
@@ -770,7 +770,7 @@ xfs_buf_associate_memory(
 	bp->b_pages = NULL;
 	bp->b_addr = mem;
 
-	rval = _xfs_buf_get_pages(bp, page_count, 0);
+	rval = _xfs_buf_get_pages(bp, page_count, XBF_DONT_BLOCK);
 	if (rval)
 		return rval;
 
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index f4e255441574..0542fd507649 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -41,7 +41,6 @@
 #include "xfs_ioctl.h"
 
 #include <linux/dcache.h>
-#include <linux/smp_lock.h>
 
 static struct vm_operations_struct xfs_file_vm_ops;
 
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index 0882d166239a..eafcc7c18706 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -619,7 +619,7 @@ xfs_file_compat_ioctl(
 	case XFS_IOC_GETVERSION_32:
 		cmd = _NATIVE_IOC(cmd, long);
 		return xfs_file_ioctl(filp, cmd, p);
-	case XFS_IOC_SWAPEXT: {
+	case XFS_IOC_SWAPEXT_32: {
 		struct xfs_swapext	  sxp;
 		struct compat_xfs_swapext __user *sxu = arg;
 
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 58973bb46038..8070b34cc287 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -680,8 +680,8 @@ xfs_vn_fiemap(
 	else
 		bm.bmv_length = BTOBB(length);
 
-	/* our formatter will tell xfs_getbmap when to stop. */
-	bm.bmv_count = MAXEXTNUM;
+	/* We add one because in getbmap world count includes the header */
+	bm.bmv_count = fieinfo->fi_extents_max + 1;
 	bm.bmv_iflags = BMV_IF_PREALLOC;
 	if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR)
 		bm.bmv_iflags |= BMV_IF_ATTRFORK;
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index f65a53f8752f..6127e24062d0 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -24,7 +24,7 @@
  * XFS_BIG_BLKNOS needs block layer disk addresses to be 64 bits.
  * XFS_BIG_INUMS requires XFS_BIG_BLKNOS to be set.
  */
-#if defined(CONFIG_LBD) || (BITS_PER_LONG == 64)
+#if defined(CONFIG_LBDAF) || (BITS_PER_LONG == 64)
 # define XFS_BIG_BLKNOS	1
 # define XFS_BIG_INUMS	1
 #else
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 2e09efbca8db..a220d36f789b 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -616,7 +616,7 @@ xfs_max_file_offset(
 	 */
 
 #if BITS_PER_LONG == 32
-# if defined(CONFIG_LBD)
+# if defined(CONFIG_LBDAF)
 	ASSERT(sizeof(sector_t) == 8);
 	pagefactor = PAGE_CACHE_SIZE;
 	bitshift = BITS_PER_LONG;
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index b619d6b8ca43..98ef624d9baf 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -708,6 +708,16 @@ xfs_reclaim_inode(
 	return 0;
 }
 
+void
+__xfs_inode_set_reclaim_tag(
+	struct xfs_perag	*pag,
+	struct xfs_inode	*ip)
+{
+	radix_tree_tag_set(&pag->pag_ici_root,
+			   XFS_INO_TO_AGINO(ip->i_mount, ip->i_ino),
+			   XFS_ICI_RECLAIM_TAG);
+}
+
 /*
  * We set the inode flag atomically with the radix tree tag.
  * Once we get tag lookups on the radix tree, this inode flag
@@ -722,8 +732,7 @@ xfs_inode_set_reclaim_tag(
 
 	read_lock(&pag->pag_ici_lock);
 	spin_lock(&ip->i_flags_lock);
-	radix_tree_tag_set(&pag->pag_ici_root,
-			XFS_INO_TO_AGINO(mp, ip->i_ino), XFS_ICI_RECLAIM_TAG);
+	__xfs_inode_set_reclaim_tag(pag, ip);
 	__xfs_iflags_set(ip, XFS_IRECLAIMABLE);
 	spin_unlock(&ip->i_flags_lock);
 	read_unlock(&pag->pag_ici_lock);
diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h
index 2a10301c99c7..59120602588a 100644
--- a/fs/xfs/linux-2.6/xfs_sync.h
+++ b/fs/xfs/linux-2.6/xfs_sync.h
@@ -48,6 +48,7 @@ int xfs_reclaim_inode(struct xfs_inode *ip, int locked, int sync_mode);
 int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
 
 void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
+void __xfs_inode_set_reclaim_tag(struct xfs_perag *pag, struct xfs_inode *ip);
 void xfs_inode_clear_reclaim_tag(struct xfs_inode *ip);
 void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag,
 				struct xfs_inode *ip);