---

yaml
---
r: 200217
b: refs/heads/master
c: c2f0e8c
h: refs/heads/master
i:
  200215: fef9f09
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d87815cb2090e07b0b0b2d73dc9740706e92c80c
+refs/heads/master: c2f0e8c803ceba530060ec9bb9c74a06c2c3d833

trunk/arch/s390/appldata/appldata_os.c

@@ -181,7 +181,7 @@ static int __init appldata_os_init(void)
 		goto out;
 	}
 
-	appldata_os_data = kzalloc(max_size, GFP_DMA);
+	appldata_os_data = kzalloc(max_size, GFP_KERNEL | GFP_DMA);
 	if (appldata_os_data == NULL) {
 		rc = -ENOMEM;
 		goto out;

trunk/arch/s390/kvm/kvm-s390.c

@@ -761,7 +761,7 @@ static int __init kvm_s390_init(void)
 	 * to hold the maximum amount of facilites. On the other hand, we
 	 * only set facilities that are known to work in KVM.
 	 */
-	facilities = (unsigned long long *) get_zeroed_page(GFP_DMA);
+	facilities = (unsigned long long *) get_zeroed_page(GFP_KERNEL|GFP_DMA);
 	if (!facilities) {
 		kvm_exit();
 		return -ENOMEM;

trunk/arch/s390/mm/extmem.c

@@ -105,7 +105,7 @@ static int
 dcss_set_subcodes(void)
 {
 #ifdef CONFIG_64BIT
-	char *name = kmalloc(8 * sizeof(char), GFP_DMA);
+	char *name = kmalloc(8 * sizeof(char), GFP_KERNEL | GFP_DMA);
 	unsigned long rx, ry;
 	int rc;
 
@@ -252,12 +252,13 @@ dcss_diag_translate_rc (int vm_rc) {
 static int
 query_segment_type (struct dcss_segment *seg)
 {
-	struct qin64  *qin = kmalloc (sizeof(struct qin64), GFP_DMA);
-	struct qout64 *qout = kmalloc (sizeof(struct qout64), GFP_DMA);
-
-	int diag_cc, rc, i;
 	unsigned long dummy, vmrc;
+	int diag_cc, rc, i;
+	struct qout64 *qout;
+	struct qin64 *qin;
 
+	qin = kmalloc(sizeof(*qin), GFP_KERNEL | GFP_DMA);
+	qout = kmalloc(sizeof(*qout), GFP_KERNEL | GFP_DMA);
 	if ((qin == NULL) || (qout == NULL)) {
 		rc = -ENOMEM;
 		goto out_free;
@@ -286,7 +287,7 @@ query_segment_type (struct dcss_segment *seg)
 	   copy data for the new format. */
 	if (segext_scode == DCSS_SEGEXT) {
 		struct qout64_old *qout_old;
-		qout_old = kzalloc(sizeof(struct qout64_old), GFP_DMA);
+		qout_old = kzalloc(sizeof(*qout_old), GFP_KERNEL | GFP_DMA);
 		if (qout_old == NULL) {
 			rc = -ENOMEM;
 			goto out_free;
@@ -407,11 +408,11 @@ segment_overlaps_others (struct dcss_segment *seg)
 static int
 __segment_load (char *name, int do_nonshared, unsigned long *addr, unsigned long *end)
 {
-	struct dcss_segment *seg = kmalloc(sizeof(struct dcss_segment),
-			GFP_DMA);
-	int rc, diag_cc;
 	unsigned long start_addr, end_addr, dummy;
+	struct dcss_segment *seg;
+	int rc, diag_cc;
 
+	seg = kmalloc(sizeof(*seg), GFP_KERNEL | GFP_DMA);
 	if (seg == NULL) {
 		rc = -ENOMEM;
 		goto out;

trunk/drivers/input/misc/hp_sdc_rtc.c

@@ -678,7 +678,7 @@ static const struct file_operations hp_sdc_rtc_fops = {
         .llseek =		no_llseek,
         .read =			hp_sdc_rtc_read,
         .poll =			hp_sdc_rtc_poll,
-        .unlocked_ioctl =	hp_sdc_rtc_unlocked_ioctl,
+        .unlocked_ioctl = 	hp_sdc_rtc_ioctl,
         .open =			hp_sdc_rtc_open,
         .fasync =		hp_sdc_rtc_fasync,
 };

trunk/drivers/s390/cio/itcw.c

@@ -42,7 +42,7 @@
  * size_t size;
  *
  * size = itcw_calc_size(1, 2, 0);
- * buffer = kmalloc(size, GFP_DMA);
+ * buffer = kmalloc(size, GFP_KERNEL | GFP_DMA);
  * if (!buffer)
  *	return -ENOMEM;
  * itcw = itcw_init(buffer, size, ITCW_OP_READ, 1, 2, 0);

trunk/fs/xfs/linux-2.6/xfs_aops.c

@@ -1381,6 +1381,14 @@ 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.

trunk/include/linux/writeback.h

@@ -56,6 +56,15 @@ struct writeback_control {
 	unsigned for_reclaim:1;		/* Invoked from the page allocator */
 	unsigned range_cyclic:1;	/* range_start is cyclic */
 	unsigned more_io:1;		/* more io to be dispatched */
+	/*
+	 * write_cache_pages() won't update wbc->nr_to_write and
+	 * mapping->writeback_index if no_nrwrite_index_update
+	 * is set.  write_cache_pages() may write more than we
+	 * requested and we want to make sure nr_to_write and
+	 * writeback_index are updated in a consistent manner
+	 * so we use a single control to update them
+	 */
+	unsigned no_nrwrite_index_update:1;
 };
 
 /*

trunk/include/trace/events/ext4.h

@@ -306,6 +306,7 @@ TRACE_EVENT(ext4_da_writepages_result,
 		__field(	int,	pages_written		)
 		__field(	long,	pages_skipped		)
 		__field(	char,	more_io			)	
+		__field(	char,	no_nrwrite_index_update )
 		__field(       pgoff_t,	writeback_index		)
 	),
 
@@ -316,14 +317,16 @@ TRACE_EVENT(ext4_da_writepages_result,
 		__entry->pages_written	= pages_written;
 		__entry->pages_skipped	= wbc->pages_skipped;
 		__entry->more_io	= wbc->more_io;
+		__entry->no_nrwrite_index_update = wbc->no_nrwrite_index_update;
 		__entry->writeback_index = inode->i_mapping->writeback_index;
 	),
 
-	TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld more_io %d writeback_index %lu",
+	TP_printk("dev %s ino %lu ret %d pages_written %d pages_skipped %ld more_io %d no_nrwrite_index_update %d writeback_index %lu",
 		  jbd2_dev_to_name(__entry->dev),
 		  (unsigned long) __entry->ino, __entry->ret,
 		  __entry->pages_written, __entry->pages_skipped,
 		  __entry->more_io,
+		  __entry->no_nrwrite_index_update,
 		  (unsigned long) __entry->writeback_index)
 );
 

trunk/mm/page-writeback.c

@@ -835,6 +835,7 @@ int write_cache_pages(struct address_space *mapping,
 	pgoff_t done_index;
 	int cycled;
 	int range_whole = 0;
+	long nr_to_write = wbc->nr_to_write;
 
 	pagevec_init(&pvec, 0);
 	if (wbc->range_cyclic) {
@@ -851,22 +852,7 @@ int write_cache_pages(struct address_space *mapping,
 		if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
 			range_whole = 1;
 		cycled = 1; /* ignore range_cyclic tests */
-
-		/*
-		 * If this is a data integrity sync, cap the writeback to the
-		 * current end of file. Any extension to the file that occurs
-		 * after this is a new write and we don't need to write those
-		 * pages out to fulfil our data integrity requirements. If we
-		 * try to write them out, we can get stuck in this scan until
-		 * the concurrent writer stops adding dirty pages and extending
-		 * EOF.
-		 */
-		if (wbc->sync_mode == WB_SYNC_ALL &&
-		    wbc->range_end == LLONG_MAX) {
-			end = i_size_read(mapping->host) >> PAGE_CACHE_SHIFT;
-		}
 	}
-
 retry:
 	done_index = index;
 	while (!done && (index <= end)) {
@@ -949,10 +935,11 @@ int write_cache_pages(struct address_space *mapping,
 					done = 1;
 					break;
 				}
-			}
+ 			}
 
-			if (wbc->nr_to_write > 0) {
-				if (--wbc->nr_to_write == 0 &&
+			if (nr_to_write > 0) {
+				nr_to_write--;
+				if (nr_to_write == 0 &&
 				    wbc->sync_mode == WB_SYNC_NONE) {
 					/*
 					 * We stop writing back only if we are
@@ -983,8 +970,11 @@ int write_cache_pages(struct address_space *mapping,
 		end = writeback_index - 1;
 		goto retry;
 	}
-	if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
-		mapping->writeback_index = done_index;
+	if (!wbc->no_nrwrite_index_update) {
+		if (wbc->range_cyclic || (range_whole && nr_to_write > 0))
+			mapping->writeback_index = done_index;
+		wbc->nr_to_write = nr_to_write;
+	}
 
 	return ret;
 }