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| author | Christoph Hellwig <hch@lst.de> | 2018-04-13 19:44:18 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-05-16 07:23:35 +0200 |
| commit | fddda2b7b521185f3aa018f9559eb33b0aee53a9 (patch) | |
| tree | ece18b3d82822f8eaefd8b0afa2f93307e83b253 /fs/cachefiles/proc.c | |
| parent | proc: add a proc_create_reg helper (diff) | |
| download | linux-fddda2b7b521185f3aa018f9559eb33b0aee53a9.tar.xz linux-fddda2b7b521185f3aa018f9559eb33b0aee53a9.zip | |
proc: introduce proc_create_seq{,_data}
Variants of proc_create{,_data} that directly take a struct seq_operations
argument and drastically reduces the boilerplate code in the callers.
All trivial callers converted over.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/cachefiles/proc.c')
| -rw-r--r-- | fs/cachefiles/proc.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/fs/cachefiles/proc.c b/fs/cachefiles/proc.c index 125b90f6c796..0ce1aa56b67f 100644 --- a/fs/cachefiles/proc.c +++ b/fs/cachefiles/proc.c @@ -85,21 +85,6 @@ static const struct seq_operations cachefiles_histogram_ops = { }; /* - * open "/proc/fs/cachefiles/XXX" which provide statistics summaries - */ -static int cachefiles_histogram_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &cachefiles_histogram_ops); -} - -static const struct file_operations cachefiles_histogram_fops = { - .open = cachefiles_histogram_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; - -/* * initialise the /proc/fs/cachefiles/ directory */ int __init cachefiles_proc_init(void) @@ -109,8 +94,8 @@ int __init cachefiles_proc_init(void) if (!proc_mkdir("fs/cachefiles", NULL)) goto error_dir; - if (!proc_create("fs/cachefiles/histogram", S_IFREG | 0444, NULL, - &cachefiles_histogram_fops)) + if (!proc_create_seq("fs/cachefiles/histogram", S_IFREG | 0444, NULL, + &cachefiles_histogram_ops)) goto error_histogram; _leave(" = 0"); |