[RFC][PATCH 17/42] switch all remaining checks for FILE_OPENED to FMODE_OPENED

[Al Viro]

From: Al Viro <v...@zeniv.linux.org.uk>

... and don't bother with setting FILE_OPENED at all.

Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>
---
 fs/gfs2/inode.c | 2 +-
 fs/namei.c      | 7 ++-----
 fs/open.c       | 9 ++-------
 3 files changed, 5 insertions(+), 13 deletions(-)

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index feda55f67050..67c588edf8d8 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1250,7 +1250,7 @@ static int gfs2_atomic_open(struct inode *dir, struct 
dentry *dentry,
        if (d != NULL)
                dentry = d;
        if (d_really_is_positive(dentry)) {
-               if (!(*opened & FILE_OPENED))
+               if (!(file->f_mode & FMODE_OPENED))
                        return finish_no_open(file, d);
                dput(d);
                return 0;
diff --git a/fs/namei.c b/fs/namei.c
index 39b5da70d6f5..ad8d53c3243c 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3395,11 +3395,10 @@ static int do_last(struct nameidata *nd,
        error = may_open(&nd->path, acc_mode, open_flag);
        if (error)
                goto out;
-       BUG_ON(*opened & FILE_OPENED); /* once it's opened, it's opened */
+       BUG_ON(file->f_mode & FMODE_OPENED); /* once it's opened, it's opened */
        error = vfs_open(&nd->path, file);
        if (error)
                goto out;
-       *opened |= FILE_OPENED;
 opened:
        error = ima_file_check(file, op->acc_mode, *opened);
        if (!error && will_truncate)
@@ -3517,8 +3516,6 @@ static struct file *path_openat(struct nameidata *nd,
 
        if (unlikely(file->f_flags & O_PATH)) {
                error = do_o_path(nd, flags, file);
-               if (!error)
-                       opened |= FILE_OPENED;
                goto out2;
        }
 
@@ -3539,7 +3536,7 @@ static struct file *path_openat(struct nameidata *nd,
        terminate_walk(nd);
 out2:
        if (likely(!error)) {
-               if (likely(opened & FILE_OPENED))
+               if (likely(file->f_mode & FMODE_OPENED))
                        return file;
                WARN_ON(1);
                error = -EINVAL;
diff --git a/fs/open.c b/fs/open.c
index 2aa3dc03e2fd..1f379656feab 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -849,15 +849,10 @@ int finish_open(struct file *file, struct dentry *dentry,
                int (*open)(struct inode *, struct file *),
                int *opened)
 {
-       int error;
-       BUG_ON(*opened & FILE_OPENED); /* once it's opened, it's opened */
+       BUG_ON(file->f_mode & FMODE_OPENED); /* once it's opened, it's opened */
 
        file->f_path.dentry = dentry;
-       error = do_dentry_open(file, d_backing_inode(dentry), open);
-       if (!error)
-               *opened |= FILE_OPENED;
-
-       return error;
+       return do_dentry_open(file, d_backing_inode(dentry), open);
 }
 EXPORT_SYMBOL(finish_open);
 
-- 
2.11.0