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author | Tejun Heo <tj@kernel.org> | 2013-12-05 12:28:03 -0500 |
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committer | Tejun Heo <tj@kernel.org> | 2013-12-05 12:28:03 -0500 |
commit | 6e0755b08dd6a3b5260fafc6969268c2ba261300 (patch) | |
tree | 286c49c3daad213f77735c77881c533489fc176f /include/linux/cgroup.h | |
parent | 716f479d279fb456f58be44180d7479da75e5a4e (diff) | |
download | linux-stable-6e0755b08dd6a3b5260fafc6969268c2ba261300.tar.gz linux-stable-6e0755b08dd6a3b5260fafc6969268c2ba261300.tar.bz2 linux-stable-6e0755b08dd6a3b5260fafc6969268c2ba261300.zip |
cgroup: remove cftype->read(), ->read_map() and ->write()
In preparation of conversion to kernfs, cgroup file handling is being
consolidated so that it can be easily mapped to the seq_file based
interface of kernfs.
After recent updates, ->read() and ->read_map() don't have any user
left and ->write() never had any user. Remove them.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Diffstat (limited to 'include/linux/cgroup.h')
-rw-r--r-- | include/linux/cgroup.h | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 50d8cc37498b..53e11da6e357 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -387,16 +387,6 @@ struct css_set { }; /* - * cgroup_map_cb is an abstract callback API for reporting map-valued - * control files - */ - -struct cgroup_map_cb { - int (*fill)(struct cgroup_map_cb *cb, const char *key, u64 value); - void *state; -}; - -/* * struct cftype: handler definitions for cgroup control files * * When reading/writing to a file: @@ -444,9 +434,6 @@ struct cftype { struct cgroup_subsys *ss; int (*open)(struct inode *inode, struct file *file); - ssize_t (*read)(struct cgroup_subsys_state *css, struct cftype *cft, - struct file *file, - char __user *buf, size_t nbytes, loff_t *ppos); /* * read_u64() is a shortcut for the common case of returning a * single integer. Use it in place of read() @@ -457,24 +444,12 @@ struct cftype { */ s64 (*read_s64)(struct cgroup_subsys_state *css, struct cftype *cft); /* - * read_map() is used for defining a map of key/value - * pairs. It should call cb->fill(cb, key, value) for each - * entry. The key/value pairs (and their ordering) should not - * change between reboots. - */ - int (*read_map)(struct cgroup_subsys_state *css, struct cftype *cft, - struct cgroup_map_cb *cb); - /* * read_seq_string() is used for outputting a simple sequence * using seqfile. */ int (*read_seq_string)(struct cgroup_subsys_state *css, struct cftype *cft, struct seq_file *m); - ssize_t (*write)(struct cgroup_subsys_state *css, struct cftype *cft, - struct file *file, - const char __user *buf, size_t nbytes, loff_t *ppos); - /* * write_u64() is a shortcut for the common case of accepting * a single integer (as parsed by simple_strtoull) from |