The patch titled
revert x86_64-mm-i386-semaphore-to-asm
has been removed from the -mm tree. Its filename is
revert-x86_64-mm-i386-semaphore-to-asm.patch
This patch was dropped because it is obsolete
------------------------------------------------------
Subject: revert x86_64-mm-i386-semaphore-to-asm
From: Andrew Morton <akpm@xxxxxxxx>
It crashes.
Cc: Andi Kleen <ak@xxxxxx>
Cc: Jan Beulich <jbeulich@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/i386/kernel/Makefile | 2
arch/i386/kernel/semaphore.c | 134 ++++++++++++++++++++++++++++
arch/i386/lib/Makefile | 2
arch/i386/lib/semaphore.S | 154 ---------------------------------
include/asm-i386/frame.i | 24 -----
5 files changed, 136 insertions(+), 180 deletions(-)
diff -puN arch/i386/kernel/Makefile~revert-x86_64-mm-i386-semaphore-to-asm arch/i386/kernel/Makefile
--- a/arch/i386/kernel/Makefile~revert-x86_64-mm-i386-semaphore-to-asm
+++ a/arch/i386/kernel/Makefile
@@ -4,7 +4,7 @@
extra-y := head.o init_task.o vmlinux.lds
-obj-y := process.o signal.o entry.o traps.o irq.o \
+obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \
ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \
pci-dma.o i386_ksyms.o i387.o bootflag.o \
quirks.o i8237.o topology.o alternative.o i8253.o tsc.o
diff -puN /dev/null arch/i386/kernel/semaphore.c
--- /dev/null
+++ a/arch/i386/kernel/semaphore.c
@@ -0,0 +1,134 @@
+/*
+ * i386 semaphore implementation.
+ *
+ * (C) Copyright 1999 Linus Torvalds
+ *
+ * Portions Copyright 1999 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * rw semaphores implemented November 1999 by Benjamin LaHaise <bcrl@xxxxxxxxx>
+ */
+#include <asm/semaphore.h>
+
+/*
+ * The semaphore operations have a special calling sequence that
+ * allow us to do a simpler in-line version of them. These routines
+ * need to convert that sequence back into the C sequence when
+ * there is contention on the semaphore.
+ *
+ * %eax contains the semaphore pointer on entry. Save the C-clobbered
+ * registers (%eax, %edx and %ecx) except %eax whish is either a return
+ * value or just clobbered..
+ */
+asm(
+".section .sched.text\n"
+".align 4\n"
+".globl __down_failed\n"
+"__down_failed:\n\t"
+#if defined(CONFIG_FRAME_POINTER)
+ "pushl %ebp\n\t"
+ "movl %esp,%ebp\n\t"
+#endif
+ "pushl %edx\n\t"
+ "pushl %ecx\n\t"
+ "call __down\n\t"
+ "popl %ecx\n\t"
+ "popl %edx\n\t"
+#if defined(CONFIG_FRAME_POINTER)
+ "movl %ebp,%esp\n\t"
+ "popl %ebp\n\t"
+#endif
+ "ret"
+);
+
+asm(
+".section .sched.text\n"
+".align 4\n"
+".globl __down_failed_interruptible\n"
+"__down_failed_interruptible:\n\t"
+#if defined(CONFIG_FRAME_POINTER)
+ "pushl %ebp\n\t"
+ "movl %esp,%ebp\n\t"
+#endif
+ "pushl %edx\n\t"
+ "pushl %ecx\n\t"
+ "call __down_interruptible\n\t"
+ "popl %ecx\n\t"
+ "popl %edx\n\t"
+#if defined(CONFIG_FRAME_POINTER)
+ "movl %ebp,%esp\n\t"
+ "popl %ebp\n\t"
+#endif
+ "ret"
+);
+
+asm(
+".section .sched.text\n"
+".align 4\n"
+".globl __down_failed_trylock\n"
+"__down_failed_trylock:\n\t"
+#if defined(CONFIG_FRAME_POINTER)
+ "pushl %ebp\n\t"
+ "movl %esp,%ebp\n\t"
+#endif
+ "pushl %edx\n\t"
+ "pushl %ecx\n\t"
+ "call __down_trylock\n\t"
+ "popl %ecx\n\t"
+ "popl %edx\n\t"
+#if defined(CONFIG_FRAME_POINTER)
+ "movl %ebp,%esp\n\t"
+ "popl %ebp\n\t"
+#endif
+ "ret"
+);
+
+asm(
+".section .sched.text\n"
+".align 4\n"
+".globl __up_wakeup\n"
+"__up_wakeup:\n\t"
+ "pushl %edx\n\t"
+ "pushl %ecx\n\t"
+ "call __up\n\t"
+ "popl %ecx\n\t"
+ "popl %edx\n\t"
+ "ret"
+);
+
+/*
+ * rw spinlock fallbacks
+ */
+#if defined(CONFIG_SMP)
+asm(
+".section .sched.text\n"
+".align 4\n"
+".globl __write_lock_failed\n"
+"__write_lock_failed:\n\t"
+ LOCK_PREFIX "addl $" RW_LOCK_BIAS_STR ",(%eax)\n"
+"1: rep; nop\n\t"
+ "cmpl $" RW_LOCK_BIAS_STR ",(%eax)\n\t"
+ "jne 1b\n\t"
+ LOCK_PREFIX "subl $" RW_LOCK_BIAS_STR ",(%eax)\n\t"
+ "jnz __write_lock_failed\n\t"
+ "ret"
+);
+
+asm(
+".section .sched.text\n"
+".align 4\n"
+".globl __read_lock_failed\n"
+"__read_lock_failed:\n\t"
+ LOCK_PREFIX "incl (%eax)\n"
+"1: rep; nop\n\t"
+ "cmpl $1,(%eax)\n\t"
+ "js 1b\n\t"
+ LOCK_PREFIX "decl (%eax)\n\t"
+ "js __read_lock_failed\n\t"
+ "ret"
+);
+#endif
diff -puN arch/i386/lib/Makefile~revert-x86_64-mm-i386-semaphore-to-asm arch/i386/lib/Makefile
--- a/arch/i386/lib/Makefile~revert-x86_64-mm-i386-semaphore-to-asm
+++ a/arch/i386/lib/Makefile
@@ -4,6 +4,6 @@
lib-y = checksum.o delay.o usercopy.o getuser.o putuser.o memcpy.o strstr.o \
- bitops.o semaphore.o
+ bitops.o
lib-$(CONFIG_X86_USE_3DNOW) += mmx.o
diff -puN arch/i386/lib/semaphore.S~revert-x86_64-mm-i386-semaphore-to-asm /dev/null
--- a/arch/i386/lib/semaphore.S
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- * i386 semaphore implementation.
- *
- * (C) Copyright 1999 Linus Torvalds
- *
- * Portions Copyright 1999 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * rw semaphores implemented November 1999 by Benjamin LaHaise <bcrl@xxxxxxxxx>
- */
-
-#include <linux/config.h>
-#include <linux/linkage.h>
-#include <asm/rwlock.h>
-#include <asm/alternative-asm.i>
-#include <asm/frame.i>
-#include <asm/dwarf2.h>
-
-/*
- * The semaphore operations have a special calling sequence that
- * allow us to do a simpler in-line version of them. These routines
- * need to convert that sequence back into the C sequence when
- * there is contention on the semaphore.
- *
- * %eax contains the semaphore pointer on entry. Save the C-clobbered
- * registers (%eax, %edx and %ecx) except %eax whish is either a return
- * value or just clobbered..
- */
- .section .sched.text
-ENTRY(__down_failed)
- CFI_STARTPROC
- FRAME
- pushl %edx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edx,0
- pushl %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- call __down
- popl %ecx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ecx
- popl %edx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE edx
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__down_failed)
-
-ENTRY(__down_failed_interruptible)
- CFI_STARTPROC
- FRAME
- pushl %edx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edx,0
- pushl %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- call __down_interruptible
- popl %ecx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ecx
- popl %edx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE edx
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__down_failed_interruptible)
-
-ENTRY(__down_failed_trylock)
- CFI_STARTPROC
- FRAME
- pushl %edx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edx,0
- pushl %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- call __down_trylock
- popl %ecx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ecx
- popl %edx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE edx
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__down_failed_trylock)
-
-ENTRY(__up_wakeup)
- CFI_STARTPROC
- FRAME
- pushl %edx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edx,0
- pushl %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- call __up
- popl %ecx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ecx
- popl %edx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE edx
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__up_wakeup)
-
-/*
- * rw spinlock fallbacks
- */
-#ifdef CONFIG_SMP
-ENTRY(__write_lock_failed)
- CFI_STARTPROC simple
- FRAME
- LOCK_PREFIX
- addl $ RW_LOCK_BIAS,(%eax)
-1: rep; nop
- cmpl $ RW_LOCK_BIAS,(%eax)
- jne 1b
- LOCK_PREFIX
- subl $ RW_LOCK_BIAS,(%eax)
- jnz __write_lock_failed
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__write_lock_failed)
-
-ENTRY(__read_lock_failed)
- CFI_STARTPROC
- FRAME
- LOCK_PREFIX
- incl (%eax)
-1: rep; nop
- cmpl $1,(%eax)
- js 1b
- LOCK_PREFIX
- decl (%eax)
- js __read_lock_failed
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__read_lock_failed)
-
-#endif
diff -puN include/asm-i386/frame.i~revert-x86_64-mm-i386-semaphore-to-asm /dev/null
--- a/include/asm-i386/frame.i
+++ /dev/null
@@ -1,24 +0,0 @@
-#include <linux/config.h>
-#include <asm/dwarf2.h>
-
-/* The annotation hides the frame from the unwinder and makes it look
- like a ordinary ebp save/restore. This avoids some special cases for
- frame pointer later */
-#ifdef CONFIG_FRAME_POINTER
- .macro FRAME
- pushl %ebp
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ebp,0
- movl %esp,%ebp
- .endm
- .macro ENDFRAME
- popl %ebp
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ebp
- .endm
-#else
- .macro FRAME
- .endm
- .macro ENDFRAME
- .endm
-#endif
_
Patches currently in -mm which might be from akpm@xxxxxxxx are
adfs-error-message-fix.patch
fix-x86_64-mm-allow-users-to-force-a-panic-on-nmi.patch
workqueue-remove-lock_cpu_hotplug.patch
fuse-fix-error-case-in-fuse_readpages.patch
acpi-asus-s3-resume-fix.patch
sony_apci-resume.patch
kauditd_thread-warning-fix.patch
revert-gregkh-driver-class_device_rename-remove.patch
revert-gregkh-driver-network-class_device-to-device.patch
revert-gregkh-driver-tty-device.patch
revert-gregkh-driver-mem-devices.patch
add-__must_check-to-device-management-code.patch
add-config_enable_must_check.patch
v4l-dev2-handle-__must_check.patch
drivers-base-check-errors.patch
drivers-base-check-errors-fix.patch
sysfs-add-proper-sysfs_init-prototype.patch
scsi-device_reprobe-can-fail.patch
drm-build-fix.patch
drm-build-fixes-2.patch
git-drm-build-fix.patch
git-dvb.patch
git-gfs2.patch
git-ia64.patch
git-ieee1394-fixup.patch
git-input.patch
git-kbuild.patch
git-libata-all.patch
asus-mv-device-ids.patch
1-of-2-jmicron-driver-hard_port_no-fix.patch
git-netdev-all.patch
82596-section-fixes.patch
ac3200-section-fixes.patch
cops-section-fix.patch
cs89x0-section-fix.patch
at1700-section-fix.patch
e2100-section-fix.patch
eepro-section-fix.patch
eexpress-section-fix.patch
es3210-section-fix.patch
eth16i-section-fix.patch
lance-section-fix.patch
lne390-section-fix.patch
ni52-section-fix.patch
ibmtr-section-fix.patch
smctr-section-fix.patch
wd-section-fix.patch
ni65-section-fix.patch
seeq8005-section-fix.patch
winbond-840-section-fix.patch
fealnx-section-fix.patch
sundance-section-fix.patch
e1000_7033_dump_ring-fix.patch
s2io-build-fix.patch
pal-support-of-the-fixed-phy-fix.patch
pal-support-of-the-fixed-phy-export.patch
drivers-net-ns83820c-add-paramter-to-disable-auto.patch
ppp-handle-kmalloc-failures-leak-fix.patch
ppp-handle-kmalloc-failures-leak-tweaks.patch
xt_physdev-build-fix.patch
git-nfs.patch
git-pcmcia-fixup.patch
git-powerpc.patch
git-sas.patch
git-block-vs-git-sas.patch
serial-fix-uart_bug_txen-test.patch
revert-gregkh-pci-pci-use-pci_bios-as-last-fallback.patch
fix-gregkh-pci-pci-express-aer-implemetation-aer-core-and-aerdriver-on-powerpc.patch
pcie-check-and-return-bus_register-errors-fix.patch
git-scsi-misc.patch
fix-panic-when-reinserting-adaptec-pcmcia-scsi-card-tidy.patch
git-scsi-target-fixup.patch
git-scsi-target-vs-git-block.patch
usb-hub-driver-improve-use-of-ifdef-fix.patch
pm-usb-hcds-use-pm_event_prethaw-fix.patch
rtl8150_disconnect-needs-tasklet_kill.patch
git-supertrak-fixup.patch
git-watchdog.patch
kthread-airoc-race-fix.patch
revert-x86_64-mm-i386-remove-lock-section.patch
revert-x86_64-mm-i386-semaphore-to-asm.patch
revert-x86_64-mm-detect-cfi.patch
x86_64-mm-module-locks-raw-spinlock-hack-hack-hack.patch
fix-x86_64-mm-stacktrace-cleanup-for-s390.patch
x86_64-wire-up-oops_enter-oops_exit.patch
x86_64-make-numa_emulation-__init.patch
git-cryptodev-s390-fixes.patch
git-geode-vs-git-cryptodev.patch
adix-tree-rcu-lockless-readside-update-tidy.patch
mm-tracking-shared-dirty-pages-checks.patch
mm-tracking-shared-dirty-pages-wimp.patch
convert-i386-numa-kva-space-to-bootmem-tidy.patch
reduce-max_nr_zones-make-display-of-highmem-counters-conditional-on-config_highmem-tidy.patch
reduce-max_nr_zones-use-enum-to-define-zones-reformat-and-comment-cleanup.patch
reduce-max_nr_zones-use-enum-to-define-zones-reformat-and-comment-fix.patch
reduce-max_nr_zones-remove-display-of-counters-for-unconfigured-zones-s390-fix.patch
out-of-memory-notifier-tidy.patch
mm-swap-write-failure-fixup-fix.patch
slab-optimize-kmalloc_node-the-same-way-as-kmalloc-fix.patch
slab-fix-lockdep-warnings-fix-2.patch
acx1xx-wireless-driver.patch
tiacx-pci-build-fix.patch
tiacx-ia64-fix.patch
tiacx-build-fix.patch
binfmt_elf-consistently-use-loff_t.patch
convert-i386-summit-subarch-to-use-srat-info-for-apicid_to_node-calls-tidy.patch
x86-increase-max_mp_busses-on-default-arch.patch
add-force-of-use-mmconfig.patch
add-efi-e820-memory-mapping-on-x86.patch
i386-adds-smp_call_function_single-fix.patch
swsusp-write-timer.patch
swsusp-write-speedup.patch
swsusp-read-timer.patch
swsusp-read-speedup.patch
swsusp-read-speedup-fix.patch
swsusp-read-speedup-cleanup.patch
swsusp-read-speedup-cleanup-2.patch
deprecate-smbfs-in-favour-of-cifs.patch
edac-new-opteron-athlon64-memory-controller-driver-tidy.patch
inode_diet-replace-inodeugeneric_ip-with-inodei_private-gfs-fix.patch
x86-microcode-microcode-driver-cleanup-tidy.patch
x86-microcode-add-sysfs-and-hotplug-support-fix.patch
eisa-bus-modalias-attributes-support-1-fix-git-kbuild-fix.patch
add-address_space_operationsbatch_write-fix.patch
alloc_fdtable-cleanup.patch
add-probe_kernel_address.patch
x86-use-probe_kernel_address-in-handle_bug.patch
blockdevc-check-errors.patch
let-warn_on-warn_on_once-return-the-condition-fix.patch
let-warn_on-warn_on_once-return-the-condition-fix-2.patch
omap-add-watchdog-driver-support-tweaks.patch
move-valid_dma_direction-from-x86_64-to-generic-code-fix.patch
single-bit-flip-detector-tidy.patch
fix-unserialized-task-files-changing-fix.patch
ntp-move-all-the-ntp-related-code-to-ntpc-fix.patch
reiserfs-on-demand-bitmap-loading.patch
streamline-generic_file_-interfaces-and-filemap-gfs-fix.patch
add-vector-aio-support-fix.patch
csa-basic-accounting-over-taskstats-fix.patch
fs-cache-make-kafs-use-fs-cache-fix.patch
fs-cache-make-kafs-use-fs-cache-vs-streamline-generic_file_-interfaces-and-filemap.patch
stack-overflow-safe-kdump-crash_use_safe_smp_processor_id-fix.patch
isdn-work-around-excessive-udelay.patch
knfsd-add-a-callback-for-when-last-rpc-thread-finishes-tidy.patch
knfsd-add-a-callback-for-when-last-rpc-thread-finishes-fix.patch
knfsd-separate-out-some-parts-of-nfsd_svc-which-start-nfs-servers-tweaks.patch
knfsd-define-new-nfsdfs-file-portlist-contains-list-of-ports-tidy.patch
knfsd-define-new-nfsdfs-file-portlist-contains-list-of-ports-fix.patch
knfsd-have-ext2-reject-file-handles-with-bad-inode-numbers-early-tidy.patch
knfsd-make-ext3-reject-filehandles-referring-to-invalid-inode-numbers-tidy.patch
knfsd-drop-serv-option-to-svc_recv-and-svc_process-nfs-callback-fix-nfs-callback-fix.patch
knfsd-move-tempsock-aging-to-a-timer-tidy.patch
sched-remove-unnecessary-sched-group-allocations-fix.patch
swap_prefetch-vs-zoned-counters.patch
ecryptfs-mmap-operations.patch
ecryptfs-alpha-build-fix.patch
ecryptfs-more-elegant-aes-key-size-manipulation.patch
ecryptfs-get_sb_dev-fix.patch
namespaces-add-nsproxy-dont-include-compileh.patch
namespaces-utsname-switch-to-using-uts-namespaces.patch
namespaces-utsname-use-init_utsname-when-appropriate.patch
namespaces-utsname-use-init_utsname-when-appropriate-gmidi.patch
namespaces-utsname-use-init_utsname-when-appropriate-print_kernel_version.patch
namespaces-utsname-implement-utsname-namespaces.patch
namespaces-utsname-sysctl-hack.patch
namespaces-utsname-switch-to-using-uts-namespaces-klibc-bit-sparc.patch
ipc-namespace-core.patch
readahead-sysctl-parameters-fix.patch
make-copy_from_user_inatomic-not-zero-the-tail-on-i386-vs-reiser4.patch
reiser4-hardirq-include-fix.patch
reiser4-run-truncate_inode_pages-in-reiser4_delete_inode.patch
reiser4-get_sb_dev-fix.patch
reiser4-vs-zoned-allocator.patch
reiser4-rename-generic_sounding_globalspatch-fix.patch
hpt3xx-rework-rate-filtering-tidy.patch
asus-mv-ide-device-ids.patch
genirq-convert-the-i386-architecture-to-irq-chips.patch
genirq-x86_64-irq-reenable-migrating-irqs-to-other-cpus.patch
genirq-msi-simplify-msi-enable-and-disable.patch
genirq-ia64-irq-dynamic-irq-support.patch
genirq-msi-only-build-msi-apicc-on-ia64-fix.patch
genirq-i386-irq-remove-the-msi-assumption-that-irq-==-vector.patch
genirq-x86_64-irq-make-vector_irq-per-cpu-fix.patch
genirq-x86_64-irq-make-vector_irq-per-cpu-warning-fix.patch
add-hypertransport-capability-defines-fix.patch
initial-generic-hypertransport-interrupt-support-Kconfig-fix.patch
srcu-report-out-of-memory-errors-fixlet.patch
nr_blockdev_pages-in_interrupt-warning.patch
device-suspend-debug.patch
slab-leaks3-default-y.patch
x86-kmap_atomic-debugging.patch
restore-rogue-readahead-printk.patch
input_register_device-debug.patch
put_bh-debug.patch
jmicron-warning-fix.patch
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