From 69527c554f82d4bca4b154ccc06ad1554806bdc0 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 8 Jun 2018 13:01:49 -0400 Subject: 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 Signed-off-by: Al Viro --- fs/open.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) (limited to 'fs/open.c') diff --git a/fs/open.c b/fs/open.c index 3d09b823f12b..ee893240d199 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); -- cgit v1.2.3-59-g8ed1b