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autofs: refactor autofs_prepare_pipe()

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Refactor autofs_prepare_pipe() by seperating out a check function
to be used later.

Signed-off-by: Ian Kent <raven@themaw.net>
Reviewed-by: Bill O'Donnell <bodonnel@redhat.com>
Message-Id: <20230922041215.13675-2-raven@themaw.net>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Ian Kent
2023-09-22 12:12:08 +08:00
committed by Christian Brauner
parent ce9ecca023
commit bc69fdde0a
1 changed files with 9 additions and 1 deletions
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10
fs/autofs/autofs_i.h
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@@ -209,12 +209,20 @@ int autofs_fill_super(struct super_block *, void *, int);
struct autofs_info *autofs_new_ino(struct autofs_sb_info *);
void autofs_clean_ino(struct autofs_info *);
static inline int autofs_prepare_pipe(struct file *pipe)
static inline int autofs_check_pipe(struct file *pipe)
{
if (!(pipe->f_mode & FMODE_CAN_WRITE))
return -EINVAL;
if (!S_ISFIFO(file_inode(pipe)->i_mode))
return -EINVAL;
return 0;
}
static inline int autofs_prepare_pipe(struct file *pipe)
{
int ret = autofs_check_pipe(pipe);
if (ret < 0)
return ret;
/* We want a packet pipe */
pipe->f_flags |= O_DIRECT;
/* We don't expect -EAGAIN */