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aoe: add AoE-target files to debugfs 

Signed-off-by: Ed Cashin <ecashin@coraid.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ed Cashin 2013-09-11 14:25:40 -07:00 committed by Linus Torvalds
parent 190519cd30
commit e8866cf2b9
3 changed files with 38 additions and 0 deletions
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2
drivers/block/aoe/aoe.h
View File

@ -169,6 +169,7 @@ struct aoedev {
ulong ref;
struct work_struct work;/* disk create work struct */
struct gendisk *gd;
struct dentry *debugfs;
struct request_queue *blkq;
struct hd_geometry geo;
sector_t ssize;
@ -206,6 +207,7 @@ struct ktstate {
int aoeblk_init(void);
void aoeblk_exit(void);
void aoeblk_gdalloc(void *);
void aoedisk_rm_debugfs(struct aoedev *d);
void aoedisk_rm_sysfs(struct aoedev *d);
int aoechr_init(void);

35
drivers/block/aoe/aoeblk.c
View File

@ -132,6 +132,40 @@ static const struct attribute_group attr_group = {
.attrs = aoe_attrs,
};
static const struct file_operations aoe_debugfs_fops;
static void
aoedisk_add_debugfs(struct aoedev *d)
{
struct dentry *entry;
char *p;
if (aoe_debugfs_dir == NULL)
return;
p = strchr(d->gd->disk_name, '/');
if (p == NULL)
p = d->gd->disk_name;
else
p++;
BUG_ON(*p == '\0');
entry = debugfs_create_file(p, 0444, aoe_debugfs_dir, d,
&aoe_debugfs_fops);
if (IS_ERR_OR_NULL(entry)) {
pr_info("aoe: cannot create debugfs file for %s\n",
d->gd->disk_name);
return;
}
BUG_ON(d->debugfs);
d->debugfs = entry;
}
void
aoedisk_rm_debugfs(struct aoedev *d)
{
BUG_ON(d->debugfs == NULL);
debugfs_remove(d->debugfs);
d->debugfs = NULL;
}
static int
aoedisk_add_sysfs(struct aoedev *d)
{
@ -332,6 +366,7 @@ aoeblk_gdalloc(void *vp)
add_disk(gd);
aoedisk_add_sysfs(d);
aoedisk_add_debugfs(d);
spin_lock_irqsave(&d->lock, flags);
WARN_ON(!(d->flags & DEVFL_GD_NOW));

1
drivers/block/aoe/aoedev.c
View File

@ -278,6 +278,7 @@ freedev(struct aoedev *d)
del_timer_sync(&d->timer);
if (d->gd) {
aoedisk_rm_debugfs(d);
aoedisk_rm_sysfs(d);
del_gendisk(d->gd);
put_disk(d->gd);