1 files changed, 24 insertions, 19 deletions

diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index f5cd8d38af7..d1e64f2f2fc 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -39,11 +39,11 @@ static struct {
 #endif
 
 #define metapage_locked(mp) test_bit(META_locked, &(mp)->flag)
-#define trylock_metapage(mp) test_and_set_bit(META_locked, &(mp)->flag)
+#define trylock_metapage(mp) test_and_set_bit_lock(META_locked, &(mp)->flag)
 
 static inline void unlock_metapage(struct metapage *mp)
 {
-	clear_bit(META_locked, &mp->flag);
+	clear_bit_unlock(META_locked, &mp->flag);
 	wake_up(&mp->wait);
 }
 
@@ -88,7 +88,7 @@ struct meta_anchor {
 };
 #define mp_anchor(page) ((struct meta_anchor *)page_private(page))
 
-static inline struct metapage *page_to_mp(struct page *page, uint offset)
+static inline struct metapage *page_to_mp(struct page *page, int offset)
 {
 	if (!PagePrivate(page))
 		return NULL;
@@ -153,7 +153,7 @@ static inline void dec_io(struct page *page, void (*handler) (struct page *))
 }
 
 #else
-static inline struct metapage *page_to_mp(struct page *page, uint offset)
+static inline struct metapage *page_to_mp(struct page *page, int offset)
 {
 	return PagePrivate(page) ? (struct metapage *)page_private(page) : NULL;
 }
@@ -249,7 +249,7 @@ static inline void drop_metapage(struct page *page, struct metapage *mp)
  */
 
 static sector_t metapage_get_blocks(struct inode *inode, sector_t lblock,
-				    unsigned int *len)
+				    int *len)
 {
 	int rc = 0;
 	int xflag;
@@ -352,25 +352,27 @@ static void metapage_write_end_io(struct bio *bio, int err)
 static int metapage_writepage(struct page *page, struct writeback_control *wbc)
 {
 	struct bio *bio = NULL;
-	unsigned int block_offset;	/* block offset of mp within page */
+	int block_offset;	/* block offset of mp within page */
 	struct inode *inode = page->mapping->host;
-	unsigned int blocks_per_mp = JFS_SBI(inode->i_sb)->nbperpage;
-	unsigned int len;
-	unsigned int xlen;
+	int blocks_per_mp = JFS_SBI(inode->i_sb)->nbperpage;
+	int len;
+	int xlen;
 	struct metapage *mp;
 	int redirty = 0;
 	sector_t lblock;
+	int nr_underway = 0;
 	sector_t pblock;
 	sector_t next_block = 0;
 	sector_t page_start;
 	unsigned long bio_bytes = 0;
 	unsigned long bio_offset = 0;
-	unsigned int offset;
+	int offset;
 
 	page_start = (sector_t)page->index <<
 		     (PAGE_CACHE_SHIFT - inode->i_blkbits);
 	BUG_ON(!PageLocked(page));
 	BUG_ON(PageWriteback(page));
+	set_page_writeback(page);
 
 	for (offset = 0; offset < PAGE_CACHE_SIZE; offset += PSIZE) {
 		mp = page_to_mp(page, offset);
@@ -413,11 +415,10 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
 			if (!bio->bi_size)
 				goto dump_bio;
 			submit_bio(WRITE, bio);
+			nr_underway++;
 			bio = NULL;
-		} else {
-			set_page_writeback(page);
+		} else
 			inc_io(page);
-		}
 		xlen = (PAGE_CACHE_SIZE - offset) >> inode->i_blkbits;
 		pblock = metapage_get_blocks(inode, lblock, &xlen);
 		if (!pblock) {
@@ -427,7 +428,7 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
 			continue;
 		}
 		set_bit(META_io, &mp->flag);
-		len = min(xlen, (uint) JFS_SBI(inode->i_sb)->nbperpage);
+		len = min(xlen, (int)JFS_SBI(inode->i_sb)->nbperpage);
 
 		bio = bio_alloc(GFP_NOFS, 1);
 		bio->bi_bdev = inode->i_sb->s_bdev;
@@ -449,12 +450,16 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
 			goto dump_bio;
 
 		submit_bio(WRITE, bio);
+		nr_underway++;
 	}
 	if (redirty)
 		redirty_page_for_writepage(wbc, page);
 
 	unlock_page(page);
 
+	if (nr_underway == 0)
+		end_page_writeback(page);
+
 	return 0;
 add_failed:
 	/* We should never reach here, since we're only adding one vec */
@@ -475,13 +480,13 @@ static int metapage_readpage(struct file *fp, struct page *page)
 {
 	struct inode *inode = page->mapping->host;
 	struct bio *bio = NULL;
-	unsigned int block_offset;
-	unsigned int blocks_per_page = PAGE_CACHE_SIZE >> inode->i_blkbits;
+	int block_offset;
+	int blocks_per_page = PAGE_CACHE_SIZE >> inode->i_blkbits;
 	sector_t page_start;	/* address of page in fs blocks */
 	sector_t pblock;
-	unsigned int xlen;
+	int xlen;
 	unsigned int len;
-	unsigned int offset;
+	int offset;
 
 	BUG_ON(!PageLocked(page));
 	page_start = (sector_t)page->index <<
@@ -530,7 +535,7 @@ static int metapage_releasepage(struct page *page, gfp_t gfp_mask)
 {
 	struct metapage *mp;
 	int ret = 1;
-	unsigned int offset;
+	int offset;
 
 	for (offset = 0; offset < PAGE_CACHE_SIZE; offset += PSIZE) {
 		mp = page_to_mp(page, offset);