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Diffstat (limited to 'fs/jfs/jfs_metapage.c')
-rw-r--r--fs/jfs/jfs_metapage.c43
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);