Merge tag 'v3.9-rc3' into drm-intel-next-queued

Backmerge so that I can merge Imre Deak's coalesced sg entries fixes,
which depend upon the new for_each_sg_page introduce in

commit a321e91b6d73ed011ffceed384c40d2785cf723b
Author: Imre Deak <imre.deak@intel.com>
Date:   Wed Feb 27 17:02:56 2013 -0800

    lib/scatterlist: add simple page iterator

The merge itself is just two trivial conflicts:

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 13 insertions, 22 deletions

diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 0d5071d2998..b870f740ab5 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -15,6 +15,7 @@
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/highmem.h>
+#include <linux/printk.h>
 #include <linux/bootmem.h>
 #include <linux/init.h>
 #include <linux/crash_dump.h>
@@ -175,15 +176,15 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
 	start = map_offset_to_paddr(*fpos, &vmcore_list, &curr_m);
 	if (!curr_m)
         	return -EINVAL;
-	if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)
-		tsz = buflen;
-
-	/* Calculate left bytes in current memory segment. */
-	nr_bytes = (curr_m->size - (start - curr_m->paddr));
-	if (tsz > nr_bytes)
-		tsz = nr_bytes;
 
 	while (buflen) {
+		tsz = min_t(size_t, buflen, PAGE_SIZE - (start & ~PAGE_MASK));
+
+		/* Calculate left bytes in current memory segment. */
+		nr_bytes = (curr_m->size - (start - curr_m->paddr));
+		if (tsz > nr_bytes)
+			tsz = nr_bytes;
+
 		tmp = read_from_oldmem(buffer, tsz, &start, 1);
 		if (tmp < 0)
 			return tmp;
@@ -198,12 +199,6 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
 						struct vmcore, list);
 			start = curr_m->paddr;
 		}
-		if ((tsz = (PAGE_SIZE - (start & ~PAGE_MASK))) > buflen)
-			tsz = buflen;
-		/* Calculate left bytes in current memory segment. */
-		nr_bytes = (curr_m->size - (start - curr_m->paddr));
-		if (tsz > nr_bytes)
-			tsz = nr_bytes;
 	}
 	return acc;
 }
@@ -553,8 +548,7 @@ static int __init parse_crash_elf64_headers(void)
 		ehdr.e_ehsize != sizeof(Elf64_Ehdr) ||
 		ehdr.e_phentsize != sizeof(Elf64_Phdr) ||
 		ehdr.e_phnum == 0) {
-		printk(KERN_WARNING "Warning: Core image elf header is not"
-					"sane\n");
+		pr_warn("Warning: Core image elf header is not sane\n");
 		return -EINVAL;
 	}
 
@@ -609,8 +603,7 @@ static int __init parse_crash_elf32_headers(void)
 		ehdr.e_ehsize != sizeof(Elf32_Ehdr) ||
 		ehdr.e_phentsize != sizeof(Elf32_Phdr) ||
 		ehdr.e_phnum == 0) {
-		printk(KERN_WARNING "Warning: Core image elf header is not"
-					"sane\n");
+		pr_warn("Warning: Core image elf header is not sane\n");
 		return -EINVAL;
 	}
 
@@ -653,8 +646,7 @@ static int __init parse_crash_elf_headers(void)
 	if (rc < 0)
 		return rc;
 	if (memcmp(e_ident, ELFMAG, SELFMAG) != 0) {
-		printk(KERN_WARNING "Warning: Core image elf header"
-					" not found\n");
+		pr_warn("Warning: Core image elf header not found\n");
 		return -EINVAL;
 	}
 
@@ -673,8 +665,7 @@ static int __init parse_crash_elf_headers(void)
 		/* Determine vmcore size. */
 		vmcore_size = get_vmcore_size_elf32(elfcorebuf);
 	} else {
-		printk(KERN_WARNING "Warning: Core image elf header is not"
-					" sane\n");
+		pr_warn("Warning: Core image elf header is not sane\n");
 		return -EINVAL;
 	}
 	return 0;
@@ -690,7 +681,7 @@ static int __init vmcore_init(void)
 		return rc;
 	rc = parse_crash_elf_headers();
 	if (rc) {
-		printk(KERN_WARNING "Kdump: vmcore not initialized\n");
+		pr_warn("Kdump: vmcore not initialized\n");
 		return rc;
 	}