From 2da8ca822d49c8b8781800ad155aaa00e7bb5f1a Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 5 Dec 2013 12:28:04 -0500 Subject: cgroup: replace cftype->read_seq_string() with cftype->seq_show() In preparation of conversion to kernfs, cgroup file handling is updated so that it can be easily mapped to kernfs. This patch replaces cftype->read_seq_string() with cftype->seq_show() which is not limited to single_open() operation and will map directcly to kernfs seq_file interface. The conversions are mechanical. As ->seq_show() doesn't have @css and @cft, the functions which make use of them are converted to use seq_css() and seq_cft() respectively. In several occassions, e.f. if it has seq_string in its name, the function name is updated to fit the new method better. This patch does not introduce any behavior changes. Signed-off-by: Tejun Heo Acked-by: Aristeu Rozanski Acked-by: Vivek Goyal Acked-by: Michal Hocko Acked-by: Daniel Wagner Acked-by: Li Zefan Cc: Jens Axboe Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Johannes Weiner Cc: Balbir Singh Cc: KAMEZAWA Hiroyuki Cc: Neil Horman --- include/linux/cgroup.h | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index c3d698a72e02..b32a0f8ae9ad 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -444,12 +444,9 @@ struct cftype { * read_s64() is a signed version of read_u64() */ s64 (*read_s64)(struct cgroup_subsys_state *css, struct cftype *cft); - /* - * 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); + + /* generic seq_file read interface */ + int (*seq_show)(struct seq_file *sf, void *v); /* * write_u64() is a shortcut for the common case of accepting -- cgit v1.2.3