diff options
| author |   Qinglang Miao <miaoqinglang@huawei.com> | 2020-10-01 14:50:44 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2020-10-02 14:25:29 -0600 |
| commit | 84e5d1363cd8128820434cdb983ecab0f5c1b078 (patch) | |
| tree | 2e83970c55388159358d73100fd4b98193e63f08 /drivers/md | |
| parent | bcache: check c->root with IS_ERR_OR_NULL() in mca_reserve() (diff) | |
| download | linux-dev-84e5d1363cd8128820434cdb983ecab0f5c1b078.tar.xz linux-dev-84e5d1363cd8128820434cdb983ecab0f5c1b078.zip | |
bcache: Convert to DEFINE_SHOW_ATTRIBUTE
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
As inode->iprivate equals to third parameter of
debugfs_create_file() which is NULL. So it's equivalent
to original code logic.
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/bcache/closure.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/drivers/md/bcache/closure.c b/drivers/md/bcache/closure.c index 0164a1fe94a9..d8d9394a6beb 100644 --- a/drivers/md/bcache/closure.c +++ b/drivers/md/bcache/closure.c @@ -159,7 +159,7 @@ void closure_debug_destroy(struct closure *cl) static struct dentry *closure_debug; -static int debug_seq_show(struct seq_file *f, void *data) +static int debug_show(struct seq_file *f, void *data) { struct closure *cl; @@ -188,17 +188,7 @@ static int debug_seq_show(struct seq_file *f, void *data) return 0; } -static int debug_seq_open(struct inode *inode, struct file *file) -{ - return single_open(file, debug_seq_show, NULL); -} - -static const struct file_operations debug_ops = { - .owner = THIS_MODULE, - .open = debug_seq_open, - .read = seq_read, - .release = single_release -}; +DEFINE_SHOW_ATTRIBUTE(debug); void __init closure_debug_init(void) { @@ -209,7 +199,7 @@ void __init closure_debug_init(void) * about this. */ closure_debug = debugfs_create_file( - "closures", 0400, bcache_debug, NULL, &debug_ops); + "closures", 0400, bcache_debug, NULL, &debug_fops); } #endif |