kernel: delete Linux 5.4 config and patches

[openwrt/staging/chunkeey.git] / target / linux / layerscape / patches-5.4 / 303-core-0003-cgroup-let-a-symlink-too-be-created-with-a-cftype-fi.patch

diff --git a/target/linux/layerscape/patches-5.4/303-core-0003-cgroup-let-a-symlink-too-be-created-with-a-cftype-fi.patch b/target/linux/layerscape/patches-5.4/303-core-0003-cgroup-let-a-symlink-too-be-created-with-a-cftype-fi.patch
deleted file mode 100644 (file)
index f7edb74..0000000
--- a/target/linux/layerscape/patches-5.4/303-core-0003-cgroup-let-a-symlink-too-be-created-with-a-cftype-fi.patch
+++ /dev/null
@@ -1,112 +0,0 @@
-From 3b4d888114a5f6c1e848f892a2236db4ccf8345f Mon Sep 17 00:00:00 2001
-From: Angelo Ruocco <angeloruocco90@gmail.com>
-Date: Tue, 21 May 2019 10:01:54 +0200
-Subject: [PATCH] cgroup: let a symlink too be created with a cftype file
-
-This commit enables a cftype to have a symlink (of any name) that
-points to the file associated with the cftype.
-
-Signed-off-by: Angelo Ruocco <angeloruocco90@gmail.com>
-Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
-Signed-off-by: Jens Axboe <axboe@kernel.dk>
-(cherry picked from commit 54b7b868e826b294687c439b68ec55fe20cafe5b)
-Signed-off-by: Li Yang <leoyang.li@nxp.com>
----
- include/linux/cgroup-defs.h |  3 +++
- kernel/cgroup/cgroup.c      | 33 +++++++++++++++++++++++++++++----
- 2 files changed, 32 insertions(+), 4 deletions(-)
-
---- a/include/linux/cgroup-defs.h
-+++ b/include/linux/cgroup-defs.h
-@@ -106,6 +106,8 @@ enum {
-       CFTYPE_WORLD_WRITABLE   = (1 << 4),     /* (DON'T USE FOR NEW FILES) S_IWUGO */
-       CFTYPE_DEBUG            = (1 << 5),     /* create when cgroup_debug */
- 
-+      CFTYPE_SYMLINKED        = (1 << 6),     /* pointed to by symlink too */
-+
-       /* internal flags, do not use outside cgroup core proper */
-       __CFTYPE_ONLY_ON_DFL    = (1 << 16),    /* only on default hierarchy */
-       __CFTYPE_NOT_ON_DFL     = (1 << 17),    /* not on default hierarchy */
-@@ -544,6 +546,7 @@ struct cftype {
-        * end of cftype array.
-        */
-       char name[MAX_CFTYPE_NAME];
-+      char link_name[MAX_CFTYPE_NAME];
-       unsigned long private;
- 
-       /*
---- a/kernel/cgroup/cgroup.c
-+++ b/kernel/cgroup/cgroup.c
-@@ -1465,8 +1465,8 @@ struct cgroup *task_cgroup_from_root(str
- 
- static struct kernfs_syscall_ops cgroup_kf_syscall_ops;
- 
--static char *cgroup_file_name(struct cgroup *cgrp, const struct cftype *cft,
--                            char *buf)
-+static char *cgroup_fill_name(struct cgroup *cgrp, const struct cftype *cft,
-+                            char *buf, bool write_link_name)
- {
-       struct cgroup_subsys *ss = cft->ss;
- 
-@@ -1476,13 +1476,26 @@ static char *cgroup_file_name(struct cgr
- 
-               snprintf(buf, CGROUP_FILE_NAME_MAX, "%s%s.%s",
-                        dbg, cgroup_on_dfl(cgrp) ? ss->name : ss->legacy_name,
--                       cft->name);
-+                       write_link_name ? cft->link_name : cft->name);
-       } else {
--              strscpy(buf, cft->name, CGROUP_FILE_NAME_MAX);
-+              strscpy(buf, write_link_name ? cft->link_name : cft->name,
-+                      CGROUP_FILE_NAME_MAX);
-       }
-       return buf;
- }
- 
-+static char *cgroup_file_name(struct cgroup *cgrp, const struct cftype *cft,
-+                            char *buf)
-+{
-+      return cgroup_fill_name(cgrp, cft, buf, false);
-+}
-+
-+static char *cgroup_link_name(struct cgroup *cgrp, const struct cftype *cft,
-+                            char *buf)
-+{
-+      return cgroup_fill_name(cgrp, cft, buf, true);
-+}
-+
- /**
-  * cgroup_file_mode - deduce file mode of a control file
-  * @cft: the control file in question
-@@ -1641,6 +1654,9 @@ static void cgroup_rm_file(struct cgroup
-       }
- 
-       kernfs_remove_by_name(cgrp->kn, cgroup_file_name(cgrp, cft, name));
-+      if (cft->flags & CFTYPE_SYMLINKED)
-+              kernfs_remove_by_name(cgrp->kn,
-+                                    cgroup_link_name(cgrp, cft, name));
- }
- 
- /**
-@@ -3896,6 +3912,7 @@ static int cgroup_add_file(struct cgroup
- {
-       char name[CGROUP_FILE_NAME_MAX];
-       struct kernfs_node *kn;
-+      struct kernfs_node *kn_link;
-       struct lock_class_key *key = NULL;
-       int ret;
- 
-@@ -3926,6 +3943,14 @@ static int cgroup_add_file(struct cgroup
-               spin_unlock_irq(&cgroup_file_kn_lock);
-       }
- 
-+      if (cft->flags & CFTYPE_SYMLINKED) {
-+              kn_link = kernfs_create_link(cgrp->kn,
-+                                           cgroup_link_name(cgrp, cft, name),
-+                                           kn);
-+              if (IS_ERR(kn_link))
-+                      return PTR_ERR(kn_link);
-+      }
-+
-       return 0;
- }
-