[PATCH 3/3 linux-next] fs/affs: stat: return block number

From: Fabian Frederick
Date: Mon May 15 2017 - 14:57:58 EST


stat <filename> doesn't give any block number
as it's filesystem specific. Add getattr wrapper to return
i_blkcnt calculated during affs_iget()

Signed-off-by: Fabian Frederick <fabf@xxxxxxxxx>
---
fs/affs/affs.h | 2 ++
fs/affs/file.c | 1 +
fs/affs/inode.c | 11 +++++++++++
3 files changed, 14 insertions(+)

diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index fd99f28..a2151e9 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -180,6 +180,8 @@ extern int affs_rename2(struct inode *old_dir, struct dentry *old_dentry,
/* inode.c */

extern struct inode *affs_new_inode(struct inode *dir);
+extern int affs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags);
extern int affs_notify_change(struct dentry *dentry, struct iattr *attr);
extern void affs_evict_inode(struct inode *inode);
extern struct inode *affs_iget(struct super_block *sb, unsigned long ino);
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 196ee7f..b331abb 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -979,4 +979,5 @@ const struct file_operations affs_file_operations = {

const struct inode_operations affs_file_inode_operations = {
.setattr = affs_notify_change,
+ .getattr = affs_getattr,
};
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index fd4ef3c..76fb281 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -214,6 +214,17 @@ affs_write_inode(struct inode *inode, struct writeback_control *wbc)
return 0;
}

+int affs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
+{
+ struct inode *inode = d_inode(path->dentry);
+
+ generic_fillattr(inode, stat);
+ stat->blocks = AFFS_I(inode)->i_blkcnt;
+
+ return 0;
+}
+
int
affs_notify_change(struct dentry *dentry, struct iattr *attr)
{
--
2.9.3