[src/trunk]: src/sys/dev/audio Add missing curlwp_bindx() corresponding to cu...

[isaki <isaki%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/838b7ffb7021
branches:  trunk
changeset: 959433:838b7ffb7021
user:      isaki <isaki%NetBSD.org@localhost>
date:      Sun Feb 14 03:41:13 2021 +0000

description:
Add missing curlwp_bindx() corresponding to curlwp_bind().
Pointed out by riastradh@.

diffstat:

 sys/dev/audio/audio.c |  122 +++++++++++++++++++++++++++++++++++++------------
 1 files changed, 92 insertions(+), 30 deletions(-)

diffs (truncated from 415 to 300 lines):

diff -r d0cb92d075b1 -r 838b7ffb7021 sys/dev/audio/audio.c
--- a/sys/dev/audio/audio.c     Sun Feb 14 01:27:33 2021 +0000
+++ b/sys/dev/audio/audio.c     Sun Feb 14 03:41:13 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: audio.c,v 1.90 2021/02/09 12:36:34 isaki Exp $ */
+/*     $NetBSD: audio.c,v 1.91 2021/02/14 03:41:13 isaki Exp $ */
 
 /*-
  * Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -138,7 +138,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.90 2021/02/09 12:36:34 isaki Exp $");
+__KERNEL_RCSID(0, "$NetBSD: audio.c,v 1.91 2021/02/14 03:41:13 isaki Exp $");
 
 #ifdef _KERNEL_OPT
 #include "audio.h"
@@ -1544,9 +1544,6 @@
 {
        int s;
 
-       /* psref(9) forbids to migrate CPUs */
-       curlwp_bind();
-
        /* Block audiodetach while we acquire a reference */
        s = pserialize_read_enter();
 
@@ -1574,9 +1571,6 @@
        int s;
        bool dying;
 
-       /* psref(9) forbids to migrate CPUs */
-       curlwp_bind();
-
        /* Block audiodetach while we acquire a reference */
        s = pserialize_read_enter();
 
@@ -1679,6 +1673,7 @@
 {
        struct audio_softc *sc;
        struct psref sc_ref;
+       int bound;
        int error;
 
        /* Find the device */
@@ -1686,6 +1681,7 @@
        if (sc == NULL || sc->hw_if == NULL)
                return ENXIO;
 
+       bound = curlwp_bind();
        audio_sc_acquire_foropen(sc, &sc_ref);
 
        error = audio_exlock_enter(sc);
@@ -1712,6 +1708,7 @@
 
 done:
        audio_sc_release(sc, &sc_ref);
+       curlwp_bindx(bound);
        return error;
 }
 
@@ -1721,6 +1718,7 @@
        struct audio_softc *sc;
        struct psref sc_ref;
        audio_file_t *file;
+       int bound;
        int error;
        dev_t dev;
 
@@ -1736,6 +1734,7 @@
         * - free all memory objects, regardless of sc.
         */
 
+       bound = curlwp_bind();
        sc = audio_sc_acquire_fromfile(file, &sc_ref);
        if (sc) {
                switch (AUDIODEV(dev)) {
@@ -1756,6 +1755,7 @@
 
                audio_sc_release(sc, &sc_ref);
        }
+       curlwp_bindx(bound);
 
        /* Free memory objects anyway */
        TRACEF(2, file, "free memory");
@@ -1776,6 +1776,7 @@
        struct audio_softc *sc;
        struct psref sc_ref;
        audio_file_t *file;
+       int bound;
        int error;
        dev_t dev;
 
@@ -1783,9 +1784,12 @@
        file = fp->f_audioctx;
        dev = file->dev;
 
+       bound = curlwp_bind();
        sc = audio_sc_acquire_fromfile(file, &sc_ref);
-       if (sc == NULL)
-               return EIO;
+       if (sc == NULL) {
+               error = EIO;
+               goto done;
+       }
 
        if (fp->f_flag & O_NONBLOCK)
                ioflag |= IO_NDELAY;
@@ -1805,6 +1809,8 @@
        }
 
        audio_sc_release(sc, &sc_ref);
+done:
+       curlwp_bindx(bound);
        return error;
 }
 
@@ -1815,6 +1821,7 @@
        struct audio_softc *sc;
        struct psref sc_ref;
        audio_file_t *file;
+       int bound;
        int error;
        dev_t dev;
 
@@ -1822,9 +1829,12 @@
        file = fp->f_audioctx;
        dev = file->dev;
 
+       bound = curlwp_bind();
        sc = audio_sc_acquire_fromfile(file, &sc_ref);
-       if (sc == NULL)
-               return EIO;
+       if (sc == NULL) {
+               error = EIO;
+               goto done;
+       }
 
        if (fp->f_flag & O_NONBLOCK)
                ioflag |= IO_NDELAY;
@@ -1844,6 +1854,8 @@
        }
 
        audio_sc_release(sc, &sc_ref);
+done:
+       curlwp_bindx(bound);
        return error;
 }
 
@@ -1854,6 +1866,7 @@
        struct psref sc_ref;
        audio_file_t *file;
        struct lwp *l = curlwp;
+       int bound;
        int error;
        dev_t dev;
 
@@ -1861,9 +1874,12 @@
        file = fp->f_audioctx;
        dev = file->dev;
 
+       bound = curlwp_bind();
        sc = audio_sc_acquire_fromfile(file, &sc_ref);
-       if (sc == NULL)
-               return EIO;
+       if (sc == NULL) {
+               error = EIO;
+               goto done;
+       }
 
        switch (AUDIODEV(dev)) {
        case SOUND_DEVICE:
@@ -1887,6 +1903,8 @@
        }
 
        audio_sc_release(sc, &sc_ref);
+done:
+       curlwp_bindx(bound);
        return error;
 }
 
@@ -1896,14 +1914,20 @@
        struct audio_softc *sc;
        struct psref sc_ref;
        audio_file_t *file;
+       int bound;
+       int error;
 
        KASSERT(fp->f_audioctx);
        file = fp->f_audioctx;
 
+       bound = curlwp_bind();
        sc = audio_sc_acquire_fromfile(file, &sc_ref);
-       if (sc == NULL)
-               return EIO;
-
+       if (sc == NULL) {
+               error = EIO;
+               goto done;
+       }
+
+       error = 0;
        memset(st, 0, sizeof(*st));
 
        st->st_dev = file->dev;
@@ -1912,7 +1936,9 @@
        st->st_mode = S_IFCHR;
 
        audio_sc_release(sc, &sc_ref);
-       return 0;
+done:
+       curlwp_bindx(bound);
+       return error;
 }
 
 static int
@@ -1922,6 +1948,7 @@
        struct psref sc_ref;
        audio_file_t *file;
        struct lwp *l = curlwp;
+       int bound;
        int revents;
        dev_t dev;
 
@@ -1929,9 +1956,12 @@
        file = fp->f_audioctx;
        dev = file->dev;
 
+       bound = curlwp_bind();
        sc = audio_sc_acquire_fromfile(file, &sc_ref);
-       if (sc == NULL)
-               return POLLERR;
+       if (sc == NULL) {
+               revents = POLLERR;
+               goto done;
+       }
 
        switch (AUDIODEV(dev)) {
        case SOUND_DEVICE:
@@ -1948,6 +1978,8 @@
        }
 
        audio_sc_release(sc, &sc_ref);
+done:
+       curlwp_bindx(bound);
        return revents;
 }
 
@@ -1958,15 +1990,19 @@
        struct psref sc_ref;
        audio_file_t *file;
        dev_t dev;
+       int bound;
        int error;
 
        KASSERT(fp->f_audioctx);
        file = fp->f_audioctx;
        dev = file->dev;
 
+       bound = curlwp_bind();
        sc = audio_sc_acquire_fromfile(file, &sc_ref);
-       if (sc == NULL)
-               return EIO;
+       if (sc == NULL) {
+               error = EIO;
+               goto done;
+       }
 
        switch (AUDIODEV(dev)) {
        case SOUND_DEVICE:
@@ -1983,6 +2019,8 @@
        }
 
        audio_sc_release(sc, &sc_ref);
+done:
+       curlwp_bindx(bound);
        return error;
 }
 
@@ -1994,15 +2032,19 @@
        struct psref sc_ref;
        audio_file_t *file;
        dev_t dev;
+       int bound;
        int error;
 
        KASSERT(fp->f_audioctx);
        file = fp->f_audioctx;
        dev = file->dev;
 
+       bound = curlwp_bind();
        sc = audio_sc_acquire_fromfile(file, &sc_ref);
-       if (sc == NULL)
-               return EIO;
+       if (sc == NULL) {
+               error = EIO;
+               goto done;
+       }