Properly notify block layer of sync writes

[linux-2.6-omap-h63xx.git] / fs / buffer.c

diff --git a/fs/buffer.c b/fs/buffer.c
index a073f3f4f013c5c349afede7edb715672bfd4928..0f51c0f7c266ee7ebf940d94f869081a4d80b084 100644 (file)
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -821,7 +821,7 @@ static int fsync_buffers_list(spinlock_t *lock, struct list_head *list)
                                 * contents - it is a noop if I/O is still in
                                 * flight on potentially older contents.
                                 */
-                               ll_rw_block(SWRITE, 1, &bh);
+                               ll_rw_block(SWRITE_SYNC, 1, &bh);
                                brelse(bh);
                                spin_lock(lock);
                        }
@@ -2940,16 +2940,19 @@ void ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
        for (i = 0; i < nr; i++) {
                struct buffer_head *bh = bhs[i];
 
-               if (rw == SWRITE)
+               if (rw == SWRITE || rw == SWRITE_SYNC)
                        lock_buffer(bh);
                else if (test_set_buffer_locked(bh))
                        continue;
 
-               if (rw == WRITE || rw == SWRITE) {
+               if (rw == WRITE || rw == SWRITE || rw == SWRITE_SYNC) {
                        if (test_clear_buffer_dirty(bh)) {
                                bh->b_end_io = end_buffer_write_sync;
                                get_bh(bh);
-                               submit_bh(WRITE, bh);
+                               if (rw == SWRITE_SYNC)
+                                       submit_bh(WRITE_SYNC, bh);
+                               else
+                                       submit_bh(WRITE, bh);
                                continue;
                        }
                } else {
@@ -2978,7 +2981,7 @@ int sync_dirty_buffer(struct buffer_head *bh)
        if (test_clear_buffer_dirty(bh)) {
                get_bh(bh);
                bh->b_end_io = end_buffer_write_sync;
-               ret = submit_bh(WRITE, bh);
+               ret = submit_bh(WRITE_SYNC, bh);
                wait_on_buffer(bh);
                if (buffer_eopnotsupp(bh)) {
                        clear_buffer_eopnotsupp(bh);