The patch titled
Make initializer for statically declared krefs
has been added to the -mm tree. Its filename is
make-initializer-for-statically-declared-krefs.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Make initializer for statically declared krefs
From: Pavel Emelyanov <xemul@xxxxxxxxxx>
Since the struct kref already has the _get, _put and _init routines, this
seems useful to have an initializer for those statically declared (like for
atomic_t or spinlock_t).
Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxx>
Acked-by: Serge Hallyn <serue@xxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Cc: Kay Sievers <kay.sievers@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
diff -puN include/linux/kref.h~make-initializer-for-statically-declared-krefs include/linux/kref.h
--- a/include/linux/kref.h~make-initializer-for-statically-declared-krefs
+++ a/include/linux/kref.h
@@ -24,6 +24,8 @@ struct kref {
atomic_t refcount;
};
+#define INIT_KREF(count) { .refcount = ATOMIC_INIT(count), }
+
void kref_init(struct kref *kref);
void kref_get(struct kref *kref);
int kref_put(struct kref *kref, void (*release) (struct kref *kref));
diff -puN init/version.c~make-initializer-for-statically-declared-krefs init/version.c
--- a/init/version.c~make-initializer-for-statically-declared-krefs
+++ a/init/version.c
@@ -19,9 +19,7 @@
int version_string(LINUX_VERSION_CODE);
struct uts_namespace init_uts_ns = {
- .kref = {
- .refcount = ATOMIC_INIT(2),
- },
+ .kref = INIT_KREF(2),
.name = {
.sysname = UTS_SYSNAME,
.nodename = UTS_NODENAME,
diff -puN ipc/util.c~make-initializer-for-statically-declared-krefs ipc/util.c
--- a/ipc/util.c~make-initializer-for-statically-declared-krefs
+++ a/ipc/util.c
@@ -45,9 +45,7 @@ struct ipc_proc_iface {
};
struct ipc_namespace init_ipc_ns = {
- .kref = {
- .refcount = ATOMIC_INIT(2),
- },
+ .kref = INIT_KREF(2),
};
static struct ipc_namespace *clone_ipc_ns(struct ipc_namespace *old_ns)
diff -puN kernel/pid.c~make-initializer-for-statically-declared-krefs kernel/pid.c
--- a/kernel/pid.c~make-initializer-for-statically-declared-krefs
+++ a/kernel/pid.c
@@ -61,9 +61,7 @@ static inline int mk_pid(struct pid_name
* the scheme scales to up to 4 million PIDs, runtime.
*/
struct pid_namespace init_pid_ns = {
- .kref = {
- .refcount = ATOMIC_INIT(2),
- },
+ .kref = INIT_KREF(2),
.pidmap = {
[ 0 ... PIDMAP_ENTRIES-1] = { ATOMIC_INIT(BITS_PER_PAGE), NULL }
},
diff -puN kernel/user_namespace.c~make-initializer-for-statically-declared-krefs kernel/user_namespace.c
--- a/kernel/user_namespace.c~make-initializer-for-statically-declared-krefs
+++ a/kernel/user_namespace.c
@@ -11,9 +11,7 @@
#include <linux/user_namespace.h>
struct user_namespace init_user_ns = {
- .kref = {
- .refcount = ATOMIC_INIT(2),
- },
+ .kref = INIT_KREF(2),
.root_user = &root_user,
};
_
Patches currently in -mm which might be from xemul@xxxxxxxxxx are
make-initializer-for-statically-declared-krefs.patch
git-net.patch
git-nfsd.patch
remove-unused-member-from-nsproxy.patch
use-kmem_cache-macro-to-create-the-nsproxy-cache.patch
pid-namespaces-round-up-the-api.patch
pid-namespaces-make-get_pid_ns-return-the-namespace-itself.patch
pid-namespaces-dynamic-kmem-cache-allocator-for-pid-namespaces.patch
pid-namespaces-dynamic-kmem-cache-allocator-for-pid-namespaces-fix.patch
pid-namespaces-define-and-use-task_active_pid_ns-wrapper.patch
pid-namespaces-rename-child_reaper-function.patch
pid-namespaces-use-task_pid-to-find-leaders-pid.patch
pid-namespaces-define-is_global_init-and-is_container_init.patch
pid-namespaces-define-is_global_init-and-is_container_init-fix-capabilityc-to-work-with-threaded-init.patch
pid-namespaces-define-is_global_init-and-is_container_init-versus-x86_64-mm-i386-show-unhandled-signals-v3.patch
pid-namespaces-move-alloc_pid-to-copy_process.patch
make-access-to-tasks-nsproxy-lighter.patch
make-access-to-tasks-nsproxy-lighterpatch-breaks-unshare.patch
make-access-to-tasks-nsproxy-lighter-update-get_net_ns_by_pid.patch
pid-namespaces-rework-forget_original_parent.patch
pid-namespaces-move-exit_task_namespaces.patch
pid-namespaces-introduce-ms_kernmount-flag.patch
pid-namespaces-prepare-proc_flust_task-to-flush-entries-from-multiple-proc-trees.patch
pid-namespaces-introduce-struct-upid.patch
pid-namespaces-add-support-for-pid-namespaces-hierarchy.patch
pid-namespaces-make-alloc_pid-free_pid-and-put_pid-work-with-struct-upid.patch
pid-namespaces-helpers-to-obtain-pid-numbers.patch
pid-namespaces-helpers-to-find-the-task-by-its-numerical-ids.patch
pid-namespaces-helpers-to-find-the-task-by-its-numerical-ids-fix.patch
pid-namespaces-move-alloc_pid-lower-in-copy_process.patch
pid-namespaces-make-proc-have-multiple-superblocks-one-for-each-namespace.patch
pid-namespaces-miscelaneous-preparations-for-pid-namespaces.patch
pid-namespaces-allow-cloning-of-new-namespace.patch
pid-namespaces-allow-cloning-of-new-namespace-fix-check-for-return-value-of-create_pid_namespace.patch
pid-namespaces-make-proc_flush_task-actually-from-entries-from-multiple-namespaces.patch
pid-namespaces-initialize-the-namespaces-proc_mnt.patch
pid-namespaces-allow-signalling-container-init.patch
pid-namespaces-destroy-pid-namespace-on-inits-death.patch
pid-namespaces-changes-to-show-virtual-ids-to-user.patch
pid-namespaces-changes-to-show-virtual-ids-to-user-fix-the-return-value-of-sys_set_tid_address.patch
pid-namespaces-changes-to-show-virtual-ids-to-user-use-find_task_by_pid_ns-in-places-that-operate-with-virtual.patch
pid-namespaces-changes-to-show-virtual-ids-to-user-use-find_task_by_pid_ns-in-places-that-operate-with-virtual-fix.patch
pid-namespaces-changes-to-show-virtual-ids-to-user-use-find_task_by_pid_ns-in-places-that-operate-with-virtual-fix-2.patch
pid-namespaces-changes-to-show-virtual-ids-to-user-use-find_task_by_pid_ns-in-places-that-operate-with-virtual-fix-3.patch
pid-namespaces-changes-to-show-virtual-ids-to-user-sys_getsid-sys_getpgid-return-wrong-id-for-task-from-another.patch
pid-namespaces-changes-to-show-virtual-ids-to-user-fix-the-sys_setpgrp-to-work-between-namespaces.patch
uninline-find_task_by_xxx-set-of-functions.patch
pid-namespaces-changes-to-show-virtual-ids-to-user-fix.patch
pid-namespaces-remove-the-struct-pid-unneeded-fields.patch
isolate-some-explicit-usage-of-task-tgid.patch
uninline-find_pid-etc-set-of-functions.patch
uninline-the-task_xid_nr_ns-calls.patch
memory-controller-add-documentation.patch
memory-controller-resource-counters-v7.patch
memory-controller-resource-counters-v7-fix.patch
memory-controller-containers-setup-v7.patch
memory-controller-accounting-setup-v7.patch
memory-controller-memory-accounting-v7.patch
memory-controller-task-migration-v7.patch
memory-controller-add-per-container-lru-and-reclaim-v7.patch
memory-controller-add-per-container-lru-and-reclaim-v7-fix.patch
memory-controller-improve-user-interface.patch
memory-controller-oom-handling-v7.patch
memory-controller-oom-handling-v7-vs-oom-killer-stuff.patch
memory-controller-add-switch-to-control-what-type-of-pages-to-limit-v7.patch
memory-controller-add-switch-to-control-what-type-of-pages-to-limit-v7-fix-2.patch
memory-controller-make-page_referenced-container-aware-v7.patch
memory-controller-make-charging-gfp-mask-aware.patch
isolate-the-explicit-usage-of-signal-pgrp.patch
use-helpers-to-obtain-task-pid-in-printks.patch
use-helpers-to-obtain-task-pid-in-printks-drm-fix.patch
use-helpers-to-obtain-task-pid-in-printks-arch-code.patch
remove-unused-variables-from-fs-proc-basec.patch
use-task_pid_nr-in-ip_vs_syncc.patch
cleanup-macros-for-distinguishing-mandatory-locks.patch
gfs2-cleanup-explicit-check-for-mandatory-locks.patch
9pfs-cleanup-explicit-check-for-mandatory-locks.patch
afs-cleanup-explicit-check-for-mandatory-locks.patch
nfs-cleanup-explicit-check-for-mandatory-locks.patch
rework-proc-locks-via-seq_files-and-seq_list-helpers.patch
reiser4-use-helpers-to-obtain-task-pid-in-printks.patch
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