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authorLinus Torvalds <torvalds@linux-foundation.org>2018-02-11 23:34:03 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-11 23:34:03 +0100
commita9a08845e9acbd224e4ee466f5c1275ed50054e8 (patch)
tree415d6e6a82e001c65e6b161539411f54ba5fe8ce /drivers/tty/tty_io.c
parentMerge branch 'work.poll2' of git://git.kernel.org/pub/scm/linux/kernel/git/vi... (diff)
downloadlinux-a9a08845e9acbd224e4ee466f5c1275ed50054e8.tar.xz
linux-a9a08845e9acbd224e4ee466f5c1275ed50054e8.zip
vfs: do bulk POLL* -> EPOLL* replacement
This is the mindless scripted replacement of kernel use of POLL* variables as described by Al, done by this script: for V in IN OUT PRI ERR RDNORM RDBAND WRNORM WRBAND HUP RDHUP NVAL MSG; do L=`git grep -l -w POLL$V | grep -v '^t' | grep -v /um/ | grep -v '^sa' | grep -v '/poll.h$'|grep -v '^D'` for f in $L; do sed -i "-es/^\([^\"]*\)\(\<POLL$V\>\)/\\1E\\2/" $f; done done with de-mangling cleanups yet to come. NOTE! On almost all architectures, the EPOLL* constants have the same values as the POLL* constants do. But they keyword here is "almost". For various bad reasons they aren't the same, and epoll() doesn't actually work quite correctly in some cases due to this on Sparc et al. The next patch from Al will sort out the final differences, and we should be all done. Scripted-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/tty/tty_io.c')
-rw-r--r--drivers/tty/tty_io.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 6a89835453d3..eb9133b472f4 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -445,7 +445,7 @@ static ssize_t hung_up_tty_write(struct file *file, const char __user *buf,
/* No kernel lock held - none needed ;) */
static __poll_t hung_up_tty_poll(struct file *filp, poll_table *wait)
{
- return POLLIN | POLLOUT | POLLERR | POLLHUP | POLLRDNORM | POLLWRNORM;
+ return EPOLLIN | EPOLLOUT | EPOLLERR | EPOLLHUP | EPOLLRDNORM | EPOLLWRNORM;
}
static long hung_up_tty_ioctl(struct file *file, unsigned int cmd,
@@ -533,7 +533,7 @@ void tty_wakeup(struct tty_struct *tty)
tty_ldisc_deref(ld);
}
}
- wake_up_interruptible_poll(&tty->write_wait, POLLOUT);
+ wake_up_interruptible_poll(&tty->write_wait, EPOLLOUT);
}
EXPORT_SYMBOL_GPL(tty_wakeup);
@@ -867,7 +867,7 @@ static ssize_t tty_read(struct file *file, char __user *buf, size_t count,
static void tty_write_unlock(struct tty_struct *tty)
{
mutex_unlock(&tty->atomic_write_lock);
- wake_up_interruptible_poll(&tty->write_wait, POLLOUT);
+ wake_up_interruptible_poll(&tty->write_wait, EPOLLOUT);
}
static int tty_write_lock(struct tty_struct *tty, int ndelay)
@@ -1667,21 +1667,21 @@ int tty_release(struct inode *inode, struct file *filp)
if (tty->count <= 1) {
if (waitqueue_active(&tty->read_wait)) {
- wake_up_poll(&tty->read_wait, POLLIN);
+ wake_up_poll(&tty->read_wait, EPOLLIN);
do_sleep++;
}
if (waitqueue_active(&tty->write_wait)) {
- wake_up_poll(&tty->write_wait, POLLOUT);
+ wake_up_poll(&tty->write_wait, EPOLLOUT);
do_sleep++;
}
}
if (o_tty && o_tty->count <= 1) {
if (waitqueue_active(&o_tty->read_wait)) {
- wake_up_poll(&o_tty->read_wait, POLLIN);
+ wake_up_poll(&o_tty->read_wait, EPOLLIN);
do_sleep++;
}
if (waitqueue_active(&o_tty->write_wait)) {
- wake_up_poll(&o_tty->write_wait, POLLOUT);
+ wake_up_poll(&o_tty->write_wait, EPOLLOUT);
do_sleep++;
}
}