From 5ad3509364a86461188184e2ae7ca517dca6f389 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 5 Apr 2018 16:23:16 -0700 Subject: mm: reuse DEFINE_SHOW_ATTRIBUTE() macro ...instead of open coding file operations followed by custom ->open() callbacks per each attribute. [andriy.shevchenko@linux.intel.com: add tags, fix compilation issue] Link: http://lkml.kernel.org/r/20180217144253.58604-1-andriy.shevchenko@linux.intel.com Link: http://lkml.kernel.org/r/20180214154644.54505-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko Reviewed-by: Matthew Wilcox Reviewed-by: Andrew Morton Reviewed-by: Sergey Senozhatsky Acked-by: Christoph Lameter Cc: Tejun Heo Cc: Dennis Zhou Cc: Minchan Kim Cc: Nitin Gupta Cc: Sergey Senozhatsky Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/zsmalloc.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'mm/zsmalloc.c') diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index b7f61cd1c709..a583ab111a43 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -642,18 +642,7 @@ static int zs_stats_size_show(struct seq_file *s, void *v) return 0; } - -static int zs_stats_size_open(struct inode *inode, struct file *file) -{ - return single_open(file, zs_stats_size_show, inode->i_private); -} - -static const struct file_operations zs_stat_size_ops = { - .open = zs_stats_size_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; +DEFINE_SHOW_ATTRIBUTE(zs_stats_size); static void zs_pool_stat_create(struct zs_pool *pool, const char *name) { @@ -672,7 +661,7 @@ static void zs_pool_stat_create(struct zs_pool *pool, const char *name) pool->stat_dentry = entry; entry = debugfs_create_file("classes", S_IFREG | S_IRUGO, - pool->stat_dentry, pool, &zs_stat_size_ops); + pool->stat_dentry, pool, &zs_stats_size_fops); if (!entry) { pr_warn("%s: debugfs file entry <%s> creation failed\n", name, "classes"); -- cgit v1.2.3