diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2018-07-11 15:00:04 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2018-07-12 10:04:13 -0400 |
| commit | ea73ea7279884ba80896d4ea0f0443bf48b9e311 (patch) | |
| tree | 4fd72a8f638d6c502ccb595e179a453819e18ded | |
| parent | 6de37b6dc085e7c5e092b69289af66876526da44 (diff) | |
pass ->f_flags value to alloc_empty_file()
... and have it set the f_flags-derived part of ->f_mode.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/file_table.c | 8 | ||||
| -rw-r--r-- | fs/internal.h | 2 | ||||
| -rw-r--r-- | fs/namei.c | 4 | ||||
| -rw-r--r-- | fs/open.c | 8 |
4 files changed, 9 insertions, 13 deletions
diff --git a/fs/file_table.c b/fs/file_table.c index 76cfa4c43e13..705f486f7007 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -101,7 +101,7 @@ int proc_nr_files(struct ctl_table *table, int write, * done, you will imbalance int the mount's writer count * and a warning at __fput() time. */ -struct file *alloc_empty_file(const struct cred *cred) +struct file *alloc_empty_file(int flags, const struct cred *cred) { static long old_max; struct file *f; @@ -135,6 +135,8 @@ struct file *alloc_empty_file(const struct cred *cred) spin_lock_init(&f->f_lock); mutex_init(&f->f_pos_lock); eventpoll_init_file(f); + f->f_flags = flags; + f->f_mode = OPEN_FMODE(flags); /* f->f_version: 0 */ percpu_counter_inc(&nr_files); return f; @@ -160,12 +162,10 @@ struct file *alloc_file(const struct path *path, int flags, { struct file *file; - file = alloc_empty_file(current_cred()); + file = alloc_empty_file(flags, current_cred()); if (IS_ERR(file)) return file; - file->f_mode = OPEN_FMODE(flags); - file->f_flags = flags; file->f_path = *path; file->f_inode = path->dentry->d_inode; file->f_mapping = path->dentry->d_inode->i_mapping; diff --git a/fs/internal.h b/fs/internal.h index 66473bf388e4..661c314aba30 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -93,7 +93,7 @@ extern void chroot_fs_refs(const struct path *, const struct path *); /* * file_table.c */ -extern struct file *alloc_empty_file(const struct cred *); +extern struct file *alloc_empty_file(int, const struct cred *); /* * super.c diff --git a/fs/namei.c b/fs/namei.c index af2ec1803f57..223925e30adb 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -3513,12 +3513,10 @@ static struct file *path_openat(struct nameidata *nd, int opened = 0; int error; - file = alloc_empty_file(current_cred()); + file = alloc_empty_file(op->open_flag, current_cred()); if (IS_ERR(file)) return file; - file->f_flags = op->open_flag; - if (unlikely(file->f_flags & __O_TMPFILE)) { error = do_tmpfile(nd, flags, op, file, &opened); goto out2; diff --git a/fs/open.c b/fs/open.c index 0061f9ea044d..15d2c3ab91ff 100644 --- a/fs/open.c +++ b/fs/open.c @@ -742,9 +742,6 @@ static int do_dentry_open(struct file *f, static const struct file_operations empty_fops = {}; int error; - f->f_mode = OPEN_FMODE(f->f_flags) | FMODE_LSEEK | - FMODE_PREAD | FMODE_PWRITE; - path_get(&f->f_path); f->f_inode = inode; f->f_mapping = inode->i_mapping; @@ -788,6 +785,8 @@ static int do_dentry_open(struct file *f, if (error) goto cleanup_all; + /* normally all 3 are set; ->open() can clear them if needed */ + f->f_mode |= FMODE_LSEEK | FMODE_PREAD | FMODE_PWRITE; if (!open) open = f->f_op->open; if (open) { @@ -921,9 +920,8 @@ struct file *dentry_open(const struct path *path, int flags, /* We must always pass in a valid mount pointer. */ BUG_ON(!path->mnt); - f = alloc_empty_file(cred); + f = alloc_empty_file(flags, cred); if (!IS_ERR(f)) { - f->f_flags = flags; error = vfs_open(path, f, cred); if (!error) { /* from now on we need fput() to dispose of f */ |