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mm:backing-dev: use sysfs_emit in macro defining functions 

The cocci script used in commit bdacbb8d04f ("mm: Use sysfs_emit for
struct kobject * uses") does not convert the name##_show macro because the
macro uses concatenation via ##.

Convert it by hand.

Link: https://lkml.kernel.org/r/45ec6cfc177d743f9c0ebaf35e43969dce43af42.1605376435.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2020-12-14 19:14:50 -08:00 committed by Linus Torvalds
parent bfb0ffeb2a
commit 5e4c0d86cf
1 changed files with 4 additions and 4 deletions
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8
mm/backing-dev.c
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@ -150,11 +150,11 @@ static ssize_t read_ahead_kb_store(struct device *dev,
#define BDI_SHOW(name, expr) \
static ssize_t name##_show(struct device *dev, \
struct device_attribute *attr, char *page) \
struct device_attribute *attr, char *buf) \
{ \
struct backing_dev_info *bdi = dev_get_drvdata(dev); \
\
return snprintf(page, PAGE_SIZE-1, "%lld\n", (long long)expr); \
return sysfs_emit(buf, "%lld\n", (long long)expr); \
} \
static DEVICE_ATTR_RW(name);
@ -200,11 +200,11 @@ BDI_SHOW(max_ratio, bdi->max_ratio)
static ssize_t stable_pages_required_show(struct device *dev,
struct device_attribute *attr,
char *page)
char *buf)
{
dev_warn_once(dev,
"the stable_pages_required attribute has been removed. Use the stable_writes queue attribute instead.\n");
return snprintf(page, PAGE_SIZE-1, "%d\n", 0);
return sysfs_emit(buf, "%d\n", 0);
}
static DEVICE_ATTR_RO(stable_pages_required);