Hi Steve,
I think this needs the further changes below, which I will fold in. The
issues are:
(1) One of the error paths in cifs_atomic_open() uses the cookie when it
should jump around that.
(2) There's an additional successful return from the middle of cifs_open()
that I mistook for an error path, but does need to use the cookie on
the way out.
David
---
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 6186824b366e..bf3b4c9901b9 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -508,6 +508,7 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
server->ops->close(xid, tcon, &fid);
cifs_del_pending_open(&open);
rc = -ENOMEM;
+ goto out;
}
fscache_use_cookie(cifs_inode_cookie(file_inode(file)),
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 44da7646f789..47333730c963 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -568,7 +568,7 @@ int cifs_open(struct inode *inode, struct file *file)
spin_lock(&CIFS_I(inode)->deferred_lock);
cifs_del_deferred_close(cfile);
spin_unlock(&CIFS_I(inode)->deferred_lock);
- goto out;
+ goto use_cache;
} else {
_cifsFileInfo_put(cfile, true, false);
}
@@ -630,19 +630,6 @@ int cifs_open(struct inode *inode, struct file *file)
goto out;
}
-
- fscache_use_cookie(cifs_inode_cookie(file_inode(file)),
- file->f_mode & FMODE_WRITE);
- if (file->f_flags & O_DIRECT &&
- (!((file->f_flags & O_ACCMODE) != O_RDONLY) ||
- file->f_flags & O_APPEND)) {
- struct cifs_fscache_inode_coherency_data cd;
- cifs_fscache_fill_coherency(file_inode(file), &cd);
- fscache_invalidate(cifs_inode_cookie(file_inode(file)),
- &cd, i_size_read(file_inode(file)),
- FSCACHE_INVAL_DIO_WRITE);
- }
-
if ((oplock & CIFS_CREATE_ACTION) && !posix_open_ok && tcon->unix_ext) {
/*
* Time to set mode which we can not set earlier due to
@@ -661,6 +648,19 @@ int cifs_open(struct inode *inode, struct file *file)
cfile->pid);
}
+use_cache:
+ fscache_use_cookie(cifs_inode_cookie(file_inode(file)),
+ file->f_mode & FMODE_WRITE);
+ if (file->f_flags & O_DIRECT &&
+ (!((file->f_flags & O_ACCMODE) != O_RDONLY) ||
+ file->f_flags & O_APPEND)) {
+ struct cifs_fscache_inode_coherency_data cd;
+ cifs_fscache_fill_coherency(file_inode(file), &cd);
+ fscache_invalidate(cifs_inode_cookie(file_inode(file)),
+ &cd, i_size_read(file_inode(file)),
+ FSCACHE_INVAL_DIO_WRITE);
+ }
+
out:
free_dentry_path(page);
free_xid(xid);