1 files changed, 30 insertions, 1 deletions

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index e23f114e2cfe..1668abf80549 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -649,6 +649,9 @@ static int _ext4_get_block(struct inode *inode, sector_t iblock,
         int ret = 0, started = 0;
         int dio_credits;
 
+        if (ext4_has_inline_data(inode))
+                return -ERANGE;
+
         map.m_lblk = iblock;
         map.m_len = bh->b_size >> inode->i_blkbits;
 
@@ -2687,6 +2690,12 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
         journal_t *journal;
         int err;
 
+        /*
+         * We can get here for an inline file via the FIBMAP ioctl
+         */
+        if (ext4_has_inline_data(inode))
+                return 0;
+
         if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY) &&
                         test_opt(inode->i_sb, DELALLOC)) {
                 /*
@@ -2732,14 +2741,30 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
 
 static int ext4_readpage(struct file *file, struct page *page)
 {
+        int ret = -EAGAIN;
+        struct inode *inode = page->mapping->host;
+
         trace_ext4_readpage(page);
-        return mpage_readpage(page, ext4_get_block);
+
+        if (ext4_has_inline_data(inode))
+                ret = ext4_readpage_inline(inode, page);
+
+        if (ret == -EAGAIN)
+                return mpage_readpage(page, ext4_get_block);
+
+        return ret;
 }
 
 static int
 ext4_readpages(struct file *file, struct address_space *mapping,
                 struct list_head *pages, unsigned nr_pages)
 {
+        struct inode *inode = mapping->host;
+
+        /* If the file has inline data, no need to do readpages. */
+        if (ext4_has_inline_data(inode))
+                return 0;
+
         return mpage_readpages(mapping, pages, nr_pages, ext4_get_block);
 }
 
@@ -3078,6 +3103,10 @@ static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb,
         if (ext4_should_journal_data(inode))
                 return 0;
 
+        /* Let buffer I/O handle the inline data case. */
+        if (ext4_has_inline_data(inode))
+                return 0;
+
         trace_ext4_direct_IO_enter(inode, offset, iov_length(iov, nr_segs), rw);
         if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
                 ret = ext4_ext_direct_IO(rw, iocb, iov, offset, nr_segs);