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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-12-06 14:14:16 -0800 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-12-06 14:14:16 -0800 |
commit | f194d132e4971111f85c18c96067acffb13cee6d (patch) | |
tree | e7510b0f2300e059db3fbe850b68667af28531f0 | |
parent | 09f3eca2b7e2762e223fdd359f9d0f6303a85f6c (diff) | |
parent | 982286d1b8e438f595cdc9304cc4c185c7b90a39 (diff) | |
download | linux-f194d132e4971111f85c18c96067acffb13cee6d.tar.bz2 |
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI: suspend: old debugging hacks sneaked back
Freezer: Fix JFFS2 garbage collector freezing issue (rev. 2)
HWMON: coretemp, suspend fix
Freezer: Fix APM emulation breakage
Freezer: Fix s2disk resume from initrd
-rw-r--r-- | arch/x86/kernel/acpi/wakeup_32.S | 4 | ||||
-rw-r--r-- | drivers/char/apm-emulation.c | 15 | ||||
-rw-r--r-- | drivers/hwmon/coretemp.c | 5 | ||||
-rw-r--r-- | fs/jffs2/background.c | 2 | ||||
-rw-r--r-- | init/do_mounts_initrd.c | 12 |
5 files changed, 20 insertions, 18 deletions
diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S index a97313b1270e..1e931aaf2ef6 100644 --- a/arch/x86/kernel/acpi/wakeup_32.S +++ b/arch/x86/kernel/acpi/wakeup_32.S @@ -35,10 +35,6 @@ wakeup_code: wakeup_code_start = . .code16 - movw $0xb800, %ax - movw %ax,%fs - movw $0x0e00 + 'L', %fs:(0x10) - cli cld diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c index c99e43b837f5..17d54315e146 100644 --- a/drivers/char/apm-emulation.c +++ b/drivers/char/apm-emulation.c @@ -295,7 +295,6 @@ static int apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) { struct apm_user *as = filp->private_data; - unsigned long flags; int err = -EINVAL; if (!as->suser || !as->writer) @@ -331,10 +330,16 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) * Wait for the suspend/resume to complete. If there * are pending acknowledges, we wait here for them. */ - flags = current->flags; + freezer_do_not_count(); wait_event(apm_suspend_waitqueue, as->suspend_state == SUSPEND_DONE); + + /* + * Since we are waiting until the suspend is done, the + * try_to_freeze() in freezer_count() will not trigger + */ + freezer_count(); } else { as->suspend_state = SUSPEND_WAIT; mutex_unlock(&state_lock); @@ -362,14 +367,10 @@ apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) * Wait for the suspend/resume to complete. If there * are pending acknowledges, we wait here for them. */ - flags = current->flags; - - wait_event_interruptible(apm_suspend_waitqueue, + wait_event_freezable(apm_suspend_waitqueue, as->suspend_state == SUSPEND_DONE); } - current->flags = flags; - mutex_lock(&state_lock); err = as->suspend_result; as->suspend_state = SUSPEND_NONE; diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 5c82ec7f8bbd..3ee60d26e3a2 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -337,11 +337,10 @@ static int coretemp_cpu_callback(struct notifier_block *nfb, switch (action) { case CPU_ONLINE: - case CPU_ONLINE_FROZEN: + case CPU_DOWN_FAILED: coretemp_device_add(cpu); break; - case CPU_DEAD: - case CPU_DEAD_FROZEN: + case CPU_DOWN_PREPARE: coretemp_device_remove(cpu); break; } diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c index d568ae846741..8adebd3e43c6 100644 --- a/fs/jffs2/background.c +++ b/fs/jffs2/background.c @@ -105,7 +105,7 @@ static int jffs2_garbage_collect_thread(void *_c) /* Put_super will send a SIGKILL and then wait on the sem. */ - while (signal_pending(current)) { + while (signal_pending(current) || freezing(current)) { siginfo_t info; unsigned long signr; diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c index fd4fc12d2624..614241b5200c 100644 --- a/init/do_mounts_initrd.c +++ b/init/do_mounts_initrd.c @@ -55,12 +55,18 @@ static void __init handle_initrd(void) sys_mount(".", "/", NULL, MS_MOVE, NULL); sys_chroot("."); + /* + * In case that a resume from disk is carried out by linuxrc or one of + * its children, we need to tell the freezer not to wait for us. + */ + current->flags |= PF_FREEZER_SKIP; + pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD); if (pid > 0) - while (pid != sys_wait4(-1, NULL, 0, NULL)) { - try_to_freeze(); + while (pid != sys_wait4(-1, NULL, 0, NULL)) yield(); - } + + current->flags &= ~PF_FREEZER_SKIP; /* move initrd to rootfs' /old */ sys_fchdir(old_fd); |