From c475879556a8602bbe2faa9a06f6e5fcc8c05bb2 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 8 Jun 2009 01:22:00 -0400
Subject: [PATCH] sanitize ->fsync() for affs
unfortunately, for affs (especially for affs directories) we have
no real way to keep track of metadata ownership. So we have to
do more or less what file_fsync() does, but we do *not* need to
call write_super() there.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/affs/affs.h | 1 +
fs/affs/dir.c | 2 +-
fs/affs/file.c | 14 +++++++++++++-
3 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index 1a2d5e3c7f4eb..e511dc621a2e6 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -182,6 +182,7 @@ extern int affs_add_entry(struct inode *dir, struct inode *inode, struct dent
void affs_free_prealloc(struct inode *inode);
extern void affs_truncate(struct inode *);
+int affs_file_fsync(struct file *, struct dentry *, int);
/* dir.c */
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
index 7b36904dbeac6..8ca8f3a555992 100644
--- a/fs/affs/dir.c
+++ b/fs/affs/dir.c
@@ -21,7 +21,7 @@ const struct file_operations affs_dir_operations = {
.read = generic_read_dir,
.llseek = generic_file_llseek,
.readdir = affs_readdir,
- .fsync = file_fsync,
+ .fsync = affs_file_fsync,
};
/*
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 9246cb4aa018f..184e55c1c9ba4 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -34,7 +34,7 @@ const struct file_operations affs_file_operations = {
.mmap = generic_file_mmap,
.open = affs_file_open,
.release = affs_file_release,
- .fsync = file_fsync,
+ .fsync = affs_file_fsync,
.splice_read = generic_file_splice_read,
};
@@ -915,3 +915,15 @@ affs_truncate(struct inode *inode)
}
affs_free_prealloc(inode);
}
+
+int affs_file_fsync(struct file *filp, struct dentry *dentry, int datasync)
+{
+ struct inode * inode = dentry->d_inode;
+ int ret, err;
+
+ ret = write_inode_now(inode, 0);
+ err = sync_blockdev(inode->i_sb->s_bdev);
+ if (!ret)
+ ret = err;
+ return ret;
+}
--
GitLab