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proc: introduce proc_create_net_single

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Variant of proc_create_data that directly take a seq_file show
callback and deals with network namespaces in ->open and ->release.
All callers of proc_create + single_open_net converted over, and
single_{open,release}_net are removed entirely.

Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Christoph Hellwig
2018-04-13 20:38:35 +02:00
parent c350637227
commit 3617d9496c
13 changed files with 86 additions and 307 deletions
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4
include/linux/proc_fs.h
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@@ -58,6 +58,9 @@ struct proc_dir_entry *proc_create_net_data(const char *name, umode_t mode,
unsigned int state_size, void *data);
#define proc_create_net(name, mode, parent, state_size, ops) \
proc_create_net_data(name, mode, parent, state_size, ops, NULL)
struct proc_dir_entry *proc_create_net_single(const char *name, umode_t mode,
struct proc_dir_entry *parent,
int (*show)(struct seq_file *, void *), void *data);
#else /* CONFIG_PROC_FS */
@@ -97,6 +100,7 @@ static inline int remove_proc_subtree(const char *name, struct proc_dir_entry *p
#define proc_create_net_data(name, mode, parent, ops, state_size, data) ({NULL;})
#define proc_create_net(name, mode, parent, state_size, ops) ({NULL;})
#define proc_create_net_single(name, mode, parent, show, data) ({NULL;})
#endif /* CONFIG_PROC_FS */