[PATCH 8/9] vfs: use helper for calling f_op->fsync()

Miklos Szeredi
2017-02-17T16:09:37Z

fs/sync.c | 2 +-
include/linux/fs.h | 6 ++++++
ipc/shm.c | 2 +-
3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/sync.c b/fs/sync.c
index 2a54c1f22035..11ba023434b1 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -192,7 +192,7 @@ int vfs_fsync_range(struct file *file, loff_t start, loff_t end, int datasync)
spin_unlock(&inode->i_lock);
mark_inode_dirty_sync(inode);
}
- return file->f_op->fsync(file, start, end, datasync);
+ return call_fsync(file, start, end, datasync);
}
EXPORT_SYMBOL(vfs_fsync_range);

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6e74b726c3ca..1293005de2e3 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1745,6 +1745,12 @@ static inline int call_mmap(struct file *file, struct vm_area_struct *vma)
return file->f_op->mmap(file, vma);
}

+static inline int call_fsync(struct file *file, loff_t start, loff_t end,
+ int datasync)
+{
+ return file->f_op->fsync(file, start, end, datasync);
+}
+
ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
unsigned long nr_segs, unsigned long fast_segs,
struct iovec *fast_pointer,
diff --git a/ipc/shm.c b/ipc/shm.c
index 4329fe3ef594..258aff2e03bb 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -452,7 +452,7 @@ static int shm_fsync(struct file *file, loff_t start, loff_t end, int datasync)

if (!sfd->file->f_op->fsync)
return -EINVAL;
- return sfd->file->f_op->fsync(sfd->file, start, end, datasync);
+ return call_fsync(sfd->file, start, end, datasync);
}

static long shm_fallocate(struct file *file, int mode, loff_t offset,
--
2.5.5