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-rwxr-xr-xkernels/linux-libre-lts-rt/PKGBUILD25
-rwxr-xr-xkernels/linux-libre-lts-rt/ext4-options.patch2
-rwxr-xr-xkernels/linux-libre-lts-rt/linux-libre-lts-rt.install2
-rw-r--r--kernels/linux-libre-lts-rt/module-init-wait-3.0.patch77
-rw-r--r--kernels/linux-libre-lts-rt/module-symbol-waiting-3.0.patch66
5 files changed, 162 insertions, 10 deletions
diff --git a/kernels/linux-libre-lts-rt/PKGBUILD b/kernels/linux-libre-lts-rt/PKGBUILD
index daf2d1c16..976b2995c 100755
--- a/kernels/linux-libre-lts-rt/PKGBUILD
+++ b/kernels/linux-libre-lts-rt/PKGBUILD
@@ -11,12 +11,12 @@
pkgbase=linux-libre-lts-rt # Build stock -LIBRE-LTS-RT kernel
#pkgbase=linux-libre-custom # Build kernel with a different name
_basekernel=3.0
-_releasever=43
-_rtpatchver=rt65
+_releasever=51
+_rtpatchver=rt75
_pkgver=${_basekernel}.${_releasever}
pkgver=${_basekernel}.${_releasever}_${_rtpatchver}
pkgrel=1
-_lxopkgver=${_basekernel}.43 # nearly always the same as pkgver
+_lxopkgver=${_basekernel}.50 # nearly always the same as pkgver
arch=('i686' 'x86_64' 'mips64el')
url="http://linux-libre.fsfla.org/"
license=('GPL2')
@@ -35,10 +35,12 @@ source=("http://linux-libre.fsfla.org/pub/linux-libre/releases/${_basekernel}-gn
'change-default-console-loglevel.patch'
'i915-fix-ghost-tv-output.patch'
'ext4-options.patch'
+ 'module-symbol-waiting-3.0.patch'
+ 'module-init-wait-3.0.patch'
"http://www.linux-libre.fsfla.org/pub/linux-libre/lemote/gnewsense/pool/debuginfo/linux-patches-${_lxopkgver}-gnu_0loongsonlibre_mipsel.tar.bz2")
md5sums=('5f64180fe7df4e574dac5911b78f5067'
- 'c4b4e6d908e70fc6f991a1789a3ac620'
- 'bcca49907b1c1e74f6ff6afced5ff959'
+ 'fb3c742b1f8b01131534a22348cfa712'
+ '904669e437a0bb19e95022964430ad4a'
'7266f5e7af09cc6e4b15d7a952e3b350'
'5387f0cf51652c071190789569adf9c7'
'85f04a9555bdc295f7c387a6564f0c81'
@@ -47,8 +49,10 @@ md5sums=('5f64180fe7df4e574dac5911b78f5067'
'04b21c79df0a952c22d681dd4f4562df'
'9d3c56a4b999c8bfbd4018089a62f662'
'263725f20c0b9eb9c353040792d644e5'
- 'c8299cf750a84e12d60b372c8ca7e1e8'
- '2c4870ef22f87ef885f3be392d1aaa90')
+ 'f36222e7ce20c8e4dc27376f9be60f6c'
+ '670931649c60fcb3ef2e0119ed532bd4'
+ '8a71abc4224f575008f974a099b5cf6f'
+ 'e2cc9f33fb26b254b6b65f8981aebf13')
if [ "$CARCH" != "mips64el" ]; then
# Don't use the Loongson-specific patches on non-mips64el arches.
unset source[${#source[@]}-1]
@@ -90,6 +94,11 @@ build() {
# https://bugs.archlinux.org/task/28653
patch -Np1 -i "${srcdir}/ext4-options.patch"
+ # fix module initialisation
+ # https://bugs.archlinux.org/task/32122
+ patch -Np1 -i "${srcdir}/module-symbol-waiting-3.0.patch"
+ patch -Np1 -i "${srcdir}/module-init-wait-3.0.patch"
+
if [ "$CARCH" == "mips64el" ]; then
sed -i "s|^EXTRAVERSION.*|EXTRAVERSION =-libre-lts-rt|" Makefile
sed -r "s|^( SUBLEVEL = ).*|\1$_sublevel|" \
@@ -102,7 +111,7 @@ build() {
# https://git.kernel.org/?p=linux/hotplug/udev.git;a=blob_plain;f=README
# and make USB storage support builtin (e.g. for booting from USB
# disks without slowly loading an initramfs)
- sed -ri -e "s|CONFIG_MIPS32_N32=.*|CONFIG_MIPS32_N32=y|g" \
+ sed -ri \
-e "s|CONFIG_MIPS32_N32=.*|CONFIG_MIPS32_N32=y|g" \
-e "s|CONFIG_UEVENT_HELPER_PATH=.*|CONFIG_UEVENT_HELPER_PATH=\"\"|g" \
-e "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"${_localversionname}\"|g" \
diff --git a/kernels/linux-libre-lts-rt/ext4-options.patch b/kernels/linux-libre-lts-rt/ext4-options.patch
index 812b05f04..ef1b2417d 100755
--- a/kernels/linux-libre-lts-rt/ext4-options.patch
+++ b/kernels/linux-libre-lts-rt/ext4-options.patch
@@ -46,4 +46,4 @@ index 502c61f..30de9cd 100644
+#endif
default:
ext4_msg(sb, KERN_ERR,
- "Unrecognized mount option \"%s\" " \ No newline at end of file
+ "Unrecognized mount option \"%s\" "
diff --git a/kernels/linux-libre-lts-rt/linux-libre-lts-rt.install b/kernels/linux-libre-lts-rt/linux-libre-lts-rt.install
index d2f0ae05a..5f31cc3d4 100755
--- a/kernels/linux-libre-lts-rt/linux-libre-lts-rt.install
+++ b/kernels/linux-libre-lts-rt/linux-libre-lts-rt.install
@@ -2,7 +2,7 @@
# arg 2: the old package version
KERNEL_NAME=-lts-rt
-KERNEL_VERSION=3.0.43-1-rt65-LIBRE-LTS-RT
+KERNEL_VERSION=3.0.51-1-rt75-LIBRE-LTS-RT
# set a sane PATH to ensure that critical utils like depmod will be found
export PATH='/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin'
diff --git a/kernels/linux-libre-lts-rt/module-init-wait-3.0.patch b/kernels/linux-libre-lts-rt/module-init-wait-3.0.patch
new file mode 100644
index 000000000..1bcfd2491
--- /dev/null
+++ b/kernels/linux-libre-lts-rt/module-init-wait-3.0.patch
@@ -0,0 +1,77 @@
+From: Rusty Russell <rusty@rustcorp.com.au>
+Date: Fri, 28 Sep 2012 05:01:03 +0000 (+0930)
+Subject: module: wait when loading a module which is currently initializing.
+X-Git-Tag: v3.7-rc1~2^2~32
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=9bb9c3be568346538
+
+module: wait when loading a module which is currently initializing.
+
+The original module-init-tools module loader used a fnctl lock on the
+.ko file to avoid attempts to simultaneously load a module.
+Unfortunately, you can't get an exclusive fcntl lock on a read-only
+fd, making this not work for read-only mounted filesystems.
+module-init-tools has a hacky sleep-and-loop for this now.
+
+It's not that hard to wait in the kernel, and only return -EEXIST once
+the first module has finished loading (or continue loading the module
+if the first one failed to initialize for some reason). It's also
+consistent with what we do for dependent modules which are still loading.
+
+Suggested-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
+Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
+---
+
+diff --git a/kernel/module.c b/kernel/module.c
+index 63cf6e7..74bc195 100644
+--- a/kernel/module.c
++++ b/kernel/module.c
+@@ -2845,6 +2845,20 @@ static int post_relocation(struct module *mod, const struct load_info *info)
+ return module_finalize(info->hdr, info->sechdrs, mod);
+ }
+
++/* Is this module of this name done loading? No locks held. */
++static bool finished_loading(const char *name)
++{
++ struct module *mod;
++ bool ret;
++
++ mutex_lock(&module_mutex);
++ mod = find_module(name);
++ ret = !mod || mod->state != MODULE_STATE_COMING;
++ mutex_unlock(&module_mutex);
++
++ return ret;
++}
++
+ /* Allocate and load the module: note that size of section 0 is always
+ zero, and we rely on this for optional sections. */
+ static struct module *load_module(void __user *umod,
+@@ -2852,7 +2866,7 @@ static struct module *load_module(void __user *umod,
+ const char __user *uargs)
+ {
+ struct load_info info = { NULL, };
+- struct module *mod;
++ struct module *mod, *old;
+ long err;
+
+ pr_debug("load_module: umod=%p, len=%lu, uargs=%p\n",
+@@ -2918,8 +2932,18 @@ static struct module *load_module(void __user *umod,
+ * function to insert in a way safe to concurrent readers.
+ * The mutex protects against concurrent writers.
+ */
++again:
+ mutex_lock(&module_mutex);
+- if (find_module(mod->name)) {
++ if ((old = find_module(mod->name)) != NULL) {
++ if (old->state == MODULE_STATE_COMING) {
++ /* Wait in case it fails to load. */
++ mutex_unlock(&module_mutex);
++ err = wait_event_interruptible(module_wq,
++ finished_loading(mod->name));
++ if (err)
++ goto free_arch_cleanup;
++ goto again;
++ }
+ err = -EEXIST;
+ goto unlock;
+ }
diff --git a/kernels/linux-libre-lts-rt/module-symbol-waiting-3.0.patch b/kernels/linux-libre-lts-rt/module-symbol-waiting-3.0.patch
new file mode 100644
index 000000000..b87a38ff5
--- /dev/null
+++ b/kernels/linux-libre-lts-rt/module-symbol-waiting-3.0.patch
@@ -0,0 +1,66 @@
+From: Rusty Russell <rusty@rustcorp.com.au>
+Date: Fri, 28 Sep 2012 05:01:03 +0000 (+0930)
+Subject: module: fix symbol waiting when module fails before init
+X-Git-Tag: v3.7-rc1~2^2~33
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=6f13909f4fe9652f1
+
+module: fix symbol waiting when module fails before init
+
+We use resolve_symbol_wait(), which blocks if the module containing
+the symbol is still loading. However:
+
+1) The module_wq we use is only woken after calling the modules' init
+ function, but there are other failure paths after the module is
+ placed in the linked list where we need to do the same thing.
+
+2) wake_up() only wakes one waiter, and our waitqueue is shared by all
+ modules, so we need to wake them all.
+
+3) wake_up_all() doesn't imply a memory barrier: I feel happier calling
+ it after we've grabbed and dropped the module_mutex, not just after
+ the state assignment.
+
+Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
+---
+
+diff --git a/kernel/module.c b/kernel/module.c
+index 7f2ee45f..63cf6e7 100644
+--- a/kernel/module.c
++++ b/kernel/module.c
+@@ -2959,7 +2959,7 @@ static struct module *load_module(void __user *umod,
+ /* Unlink carefully: kallsyms could be walking list. */
+ list_del_rcu(&mod->list);
+ module_bug_cleanup(mod);
+-
++ wake_up_all(&module_wq);
+ ddebug:
+ dynamic_debug_remove(info.debug);
+ unlock:
+@@ -3034,7 +3034,7 @@ SYSCALL_DEFINE3(init_module, void __user *, umod,
+ blocking_notifier_call_chain(&module_notify_list,
+ MODULE_STATE_GOING, mod);
+ free_module(mod);
+- wake_up(&module_wq);
++ wake_up_all(&module_wq);
+ return ret;
+ }
+ if (ret > 0) {
+@@ -3046,9 +3046,8 @@ SYSCALL_DEFINE3(init_module, void __user *, umod,
+ dump_stack();
+ }
+
+- /* Now it's a first class citizen! Wake up anyone waiting for it. */
++ /* Now it's a first class citizen! */
+ mod->state = MODULE_STATE_LIVE;
+- wake_up(&module_wq);
+ blocking_notifier_call_chain(&module_notify_list,
+ MODULE_STATE_LIVE, mod);
+
+@@ -3071,6 +3070,7 @@ SYSCALL_DEFINE3(init_module, void __user *, umod,
+ mod->init_ro_size = 0;
+ mod->init_text_size = 0;
+ mutex_unlock(&module_mutex);
++ wake_up_all(&module_wq);
+
+ return 0;
+ }
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 19:21:33 +0000