Merge branch 'for-3.16' of git://linux-nfs.org/~bfields/linux

[karo-tx-linux.git] / fs / f2fs / file.c

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index c58e330757191392656d2819fd937a1cc564cb37..7d8b96275092a1109b1bfcb6f4bd07ef7d738f82 100644 (file)
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -659,16 +659,19 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
        off_start = offset & (PAGE_CACHE_SIZE - 1);
        off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
 
+       f2fs_lock_op(sbi);
+
        for (index = pg_start; index <= pg_end; index++) {
                struct dnode_of_data dn;
 
-               f2fs_lock_op(sbi);
+               if (index == pg_end && !off_end)
+                       goto noalloc;
+
                set_new_dnode(&dn, inode, NULL, NULL, 0);
                ret = f2fs_reserve_block(&dn, index);
-               f2fs_unlock_op(sbi);
                if (ret)
                        break;
-
+noalloc:
                if (pg_start == pg_end)
                        new_size = offset + len;
                else if (index == pg_start && off_start)
@@ -683,8 +686,9 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
                i_size_read(inode) < new_size) {
                i_size_write(inode, new_size);
                mark_inode_dirty(inode);
-               f2fs_write_inode(inode, NULL);
+               update_inode_page(inode);
        }
+       f2fs_unlock_op(sbi);
 
        return ret;
 }