[PATCH] ufs: fsync implementation
Presently ufs doesn't support "fsync", this make some applications unhappy,
for example vim. This patch fixes this situation.
Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
index 312fd3f..0e50015 100644
--- a/fs/ufs/file.c
+++ b/fs/ufs/file.c
@@ -25,6 +25,26 @@
#include <linux/fs.h>
#include <linux/ufs_fs.h>
+#include <linux/buffer_head.h> /* for sync_mapping_buffers() */
+
+static int ufs_sync_file(struct file *file, struct dentry *dentry, int datasync)
+{
+ struct inode *inode = dentry->d_inode;
+ int err;
+ int ret;
+
+ ret = sync_mapping_buffers(inode->i_mapping);
+ if (!(inode->i_state & I_DIRTY))
+ return ret;
+ if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
+ return ret;
+
+ err = ufs_sync_inode(inode);
+ if (ret == 0)
+ ret = err;
+ return ret;
+}
+
/*
* We have mostly NULL's here: the current defaults are ok for
@@ -37,6 +57,7 @@
.write = generic_file_write,
.mmap = generic_file_mmap,
.open = generic_file_open,
+ .fsync = ufs_sync_file,
.sendfile = generic_file_sendfile,
};