now we can fold open_check_o_direct() into do_dentry_open()
These checks are better off in do_dentry_open(); the reason we couldn't
put them there used to be that callers couldn't tell what kind of cleanup
would do_dentry_open() failure call for. Now that we have FMODE_OPENED,
cleanup is the same in all cases - it's simply fput(). So let's fold
that into do_dentry_open(), as Christoph's patch tried to.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/internal.h b/fs/internal.h
index baeab53..52a3469 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -125,7 +125,6 @@ int do_fchmodat(int dfd, const char __user *filename, umode_t mode);
int do_fchownat(int dfd, const char __user *filename, uid_t user, gid_t group,
int flag);
-extern int open_check_o_direct(struct file *f);
extern int vfs_open(const struct path *, struct file *);
/*
diff --git a/fs/namei.c b/fs/namei.c
index bb77f6c..d152cc0 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3401,9 +3401,7 @@ static int do_last(struct nameidata *nd,
goto out;
*opened |= FILE_OPENED;
opened:
- error = open_check_o_direct(file);
- if (!error)
- error = ima_file_check(file, op->acc_mode, *opened);
+ error = ima_file_check(file, op->acc_mode, *opened);
if (!error && will_truncate)
error = handle_truncate(file);
out:
@@ -3479,9 +3477,6 @@ static int do_tmpfile(struct nameidata *nd, unsigned flags,
goto out2;
file->f_path.mnt = path.mnt;
error = finish_open(file, child, NULL, opened);
- if (error)
- goto out2;
- error = open_check_o_direct(file);
out2:
mnt_drop_write(path.mnt);
out:
diff --git a/fs/open.c b/fs/open.c
index 3d09b82..ee89324 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -724,16 +724,6 @@ SYSCALL_DEFINE3(fchown, unsigned int, fd, uid_t, user, gid_t, group)
return ksys_fchown(fd, user, group);
}
-int open_check_o_direct(struct file *f)
-{
- /* NB: we're sure to have correct a_ops only after f_op->open */
- if (f->f_flags & O_DIRECT) {
- if (!f->f_mapping->a_ops || !f->f_mapping->a_ops->direct_IO)
- return -EINVAL;
- }
- return 0;
-}
-
static int do_dentry_open(struct file *f,
struct inode *inode,
int (*open)(struct inode *, struct file *))
@@ -808,6 +798,11 @@ static int do_dentry_open(struct file *f,
file_ra_state_init(&f->f_ra, f->f_mapping->host->i_mapping);
+ /* NB: we're sure to have correct a_ops only after f_op->open */
+ if (f->f_flags & O_DIRECT) {
+ if (!f->f_mapping->a_ops || !f->f_mapping->a_ops->direct_IO)
+ return -EINVAL;
+ }
return 0;
cleanup_all:
@@ -921,8 +916,6 @@ struct file *dentry_open(const struct path *path, int flags,
f = alloc_empty_file(flags, cred);
if (!IS_ERR(f)) {
error = vfs_open(path, f);
- if (!error)
- error = open_check_o_direct(f);
if (error) {
fput(f);
f = ERR_PTR(error);