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| author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2019-02-07 18:44:43 +0300 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2019-02-07 18:44:43 +0300 |
| commit | 82ffd0454bd9bd57780966d47bfd56d579dd4fb3 (patch) | |
| tree | a735cfea934b7c4eac4a2c228cd95620c1daf969 /include/linux/tty.h | |
| parent | 890d14d2d4b57ff5a149309da3ed36c8a529987f (diff) | |
| parent | 8834f5600cf3c8db365e18a3d5cac2c2780c81e5 (diff) | |
| download | linux-82ffd0454bd9bd57780966d47bfd56d579dd4fb3.tar.xz | |
Merge tag 'v5.0-rc5' of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next
Linux 5.0-rc5
Sync with upstream (which now contains fbdev-v5.0-rc3 changes) to
prepare a base for fbdev-v5.1 changes.
Diffstat (limited to 'include/linux/tty.h')
| -rw-r--r-- | include/linux/tty.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h index 392138fe59b6..bfa4e2ee94a9 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -366,6 +366,7 @@ struct tty_file_private { #define TTY_NO_WRITE_SPLIT 17 /* Preserve write boundaries to driver */ #define TTY_HUPPED 18 /* Post driver->hangup() */ #define TTY_HUPPING 19 /* Hangup in progress */ +#define TTY_LDISC_CHANGING 20 /* Change pending - non-block IO */ #define TTY_LDISC_HALTED 22 /* Line discipline is halted */ /* Values for tty->flow_change */ @@ -383,6 +384,12 @@ static inline void tty_set_flow_change(struct tty_struct *tty, int val) smp_mb(); } +static inline bool tty_io_nonblock(struct tty_struct *tty, struct file *file) +{ + return file->f_flags & O_NONBLOCK || + test_bit(TTY_LDISC_CHANGING, &tty->flags); +} + static inline bool tty_io_error(struct tty_struct *tty) { return test_bit(TTY_IO_ERROR, &tty->flags); |