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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-06 04:43:23 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-06 04:43:23 +0100 |
| commit | 28e1445c650035668514df6f446c81f89990ac52 (patch) | |
| tree | c2e15675eb23c5ac3ca6841b1851abb95929f351 /drivers/tty/tty_io.c | |
| parent | serial/sc16is7xx: Remove obsolete #ifset TIOC[SG]RS485 (diff) | |
| parent | tty: Prevent "read/write wait queue active!" log flooding (diff) | |
| download | linux-28e1445c650035668514df6f446c81f89990ac52.tar.xz linux-28e1445c650035668514df6f446c81f89990ac52.zip | |
Merge branch 'tty-linus' into 'tty-testing'
We need the fixes in drivers/tty/tty_io.c that were done in there for
future patches in this branch.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_io.c')
| -rw-r--r-- | drivers/tty/tty_io.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c index aa83cd1bf071..4bd48f79b94b 100644 --- a/drivers/tty/tty_io.c +++ b/drivers/tty/tty_io.c @@ -1763,6 +1763,8 @@ int tty_release(struct inode *inode, struct file *filp) int do_sleep, final; int idx; char buf[64]; + long timeout = 0; + int once = 1; if (tty_paranoia_check(tty, inode, __func__)) return 0; @@ -1832,9 +1834,16 @@ int tty_release(struct inode *inode, struct file *filp) if (!do_sleep) break; - printk(KERN_WARNING "%s: %s: read/write wait queue active!\n", - __func__, tty_name(tty, buf)); - schedule(); + if (once) { + once = 0; + printk(KERN_WARNING "%s: %s: read/write wait queue active!\n", + __func__, tty_name(tty, buf)); + } + schedule_timeout_killable(timeout); + if (timeout < 120 * HZ) + timeout = 2 * timeout + 1; + else + timeout = MAX_SCHEDULE_TIMEOUT; } if (o_tty) { |