[PATCH 1/2] fs: Replace direct ->bmap calls by bmap()

[Carlos Maiolino <cmaiolino@redhat.com>]

Prepare the field to use ->fiemap for FIBMAP ioctl

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
---
 fs/cachefiles/rdwr.c |  5 ++---
 fs/ecryptfs/mmap.c   |  5 ++---
 fs/ioctl.c           | 14 ++++++++------
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c
index 40f7595aad10..186e203d64a7 100644
--- a/fs/cachefiles/rdwr.c
+++ b/fs/cachefiles/rdwr.c
@@ -435,7 +435,7 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op,
 	block0 = page->index;
 	block0 <<= shift;
 
-	block = inode->i_mapping->a_ops->bmap(inode->i_mapping, block0);
+	block = bmap(inode, block0);
 	_debug("%llx -> %llx",
 	       (unsigned long long) block0,
 	       (unsigned long long) block);
@@ -737,8 +737,7 @@ int cachefiles_read_or_alloc_pages(struct fscache_retrieval *op,
 		block0 = page->index;
 		block0 <<= shift;
 
-		block = inode->i_mapping->a_ops->bmap(inode->i_mapping,
-						      block0);
+		block = bmap(inode, block0);
 		_debug("%llx -> %llx",
 		       (unsigned long long) block0,
 		       (unsigned long long) block);
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index cdf358b209d9..16626fce5754 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -544,9 +544,8 @@ static sector_t ecryptfs_bmap(struct address_space *mapping, sector_t block)
 
 	inode = (struct inode *)mapping->host;
 	lower_inode = ecryptfs_inode_to_lower(inode);
-	if (lower_inode->i_mapping->a_ops->bmap)
-		rc = lower_inode->i_mapping->a_ops->bmap(lower_inode->i_mapping,
-							 block);
+
+	rc = bmap(lower_inode, block);
 	return rc;
 }
 
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 3212c29235ce..413585d58415 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -53,19 +53,21 @@ EXPORT_SYMBOL(vfs_ioctl);
 
 static int ioctl_fibmap(struct file *filp, int __user *p)
 {
-	struct address_space *mapping = filp->f_mapping;
+	struct inode *inode = filp->f_inode;
 	int res, block;
 
-	/* do we support this mess? */
-	if (!mapping->a_ops->bmap)
-		return -EINVAL;
 	if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
 	res = get_user(block, p);
 	if (res)
 		return res;
-	res = mapping->a_ops->bmap(mapping, block);
-	return put_user(res, p);
+
+	res = bmap(inode, block);
+
+	if (res)
+		return put_user(res, p);
+	else
+		return -EINVAL;
 }
 
 /**
-- 
2.14.4