Hi,
Just two simple coding styes below.
在 2025/02/21 16:11, Zheng Qixing 写道:
From: Zheng Qixing <zhengqixing@xxxxxxxxxx>
Change the return type of badblocks_set() and badblocks_clear()
from int to bool, indicating success or failure. Specifically:
- _badblocks_set() and _badblocks_clear() functions now return
true for success and false for failure.
- All calls to these functions have been updated to handle the
new boolean return type.
- This change improves code clarity and ensures a more consistent
handling of success and failure states.
Signed-off-by: Zheng Qixing <zhengqixing@xxxxxxxxxx>
---
block/badblocks.c | 37 +++++++++++++++++------------------
drivers/block/null_blk/main.c | 17 ++++++++--------
drivers/md/md.c | 35 +++++++++++++++++----------------
drivers/nvdimm/badrange.c | 2 +-
include/linux/badblocks.h | 6 +++---
5 files changed, 49 insertions(+), 48 deletions(-)
diff --git a/block/badblocks.c b/block/badblocks.c
index 79d91be468c4..8f057563488a 100644
--- a/block/badblocks.c
+++ b/block/badblocks.c
@@ -836,8 +836,8 @@ static bool try_adjacent_combine(struct badblocks *bb, int prev)
}
/* Do exact work to set bad block range into the bad block table */
-static int _badblocks_set(struct badblocks *bb, sector_t s, int sectors,
- int acknowledged)
+static bool _badblocks_set(struct badblocks *bb, sector_t s, int sectors,
+ int acknowledged)
{
int len = 0, added = 0;
struct badblocks_context bad;
@@ -847,11 +847,11 @@ static int _badblocks_set(struct badblocks *bb, sector_t s, int sectors,
if (bb->shift < 0)
/* badblocks are disabled */
- return 1;
+ return false;
if (sectors == 0)
/* Invalid sectors number */
- return 1;
+ return false;
if (bb->shift) {
/* round the start down, and the end up */
@@ -977,7 +977,7 @@ static int _badblocks_set(struct badblocks *bb, sector_t s, int sectors,
write_sequnlock_irqrestore(&bb->lock, flags);
- return sectors;
+ return sectors == 0;
}
/*
@@ -1048,21 +1048,20 @@ static int front_splitting_clear(struct badblocks *bb, int prev,
}
/* Do the exact work to clear bad block range from the bad block table */
-static int _badblocks_clear(struct badblocks *bb, sector_t s, int sectors)
+static bool _badblocks_clear(struct badblocks *bb, sector_t s, int sectors)
{
struct badblocks_context bad;
int prev = -1, hint = -1;
int len = 0, cleared = 0;
- int rv = 0;
u64 *p;
if (bb->shift < 0)
/* badblocks are disabled */
- return 1;
+ return false;
if (sectors == 0)
/* Invalid sectors number */
- return 1;
+ return false;
if (bb->shift) {
sector_t target;
@@ -1182,9 +1181,9 @@ static int _badblocks_clear(struct badblocks *bb, sector_t s, int sectors)
write_sequnlock_irq(&bb->lock);
if (!cleared)
- rv = 1;
+ return false;
- return rv;
+ return true;
}
/* Do the exact work to check bad blocks range from the bad block table */
@@ -1338,11 +1337,11 @@ EXPORT_SYMBOL_GPL(badblocks_check);
* decide how best to handle it.
*
* Return:
- * 0: success
- * other: failed to set badblocks (out of space)
+ * true: success
+ * false: failed to set badblocks (out of space)
*/
-int badblocks_set(struct badblocks *bb, sector_t s, int sectors,
- int acknowledged)
+bool badblocks_set(struct badblocks *bb, sector_t s, int sectors,
+ int acknowledged)
{
return _badblocks_set(bb, s, sectors, acknowledged);
}
@@ -1359,10 +1358,10 @@ EXPORT_SYMBOL_GPL(badblocks_set);
* drop the remove request.
*
* Return:
- * 0: success
- * 1: failed to clear badblocks
+ * true: success
+ * false: failed to clear badblocks
*/
-int badblocks_clear(struct badblocks *bb, sector_t s, int sectors)
+bool badblocks_clear(struct badblocks *bb, sector_t s, int sectors)
{
return _badblocks_clear(bb, s, sectors);
}
@@ -1484,7 +1483,7 @@ ssize_t badblocks_store(struct badblocks *bb, const char *page, size_t len,
return -EINVAL;
}
- if (badblocks_set(bb, sector, length, !unack))
+ if (!badblocks_set(bb, sector, length, !unack))
return -ENOSPC;
else
Since we're here, can you also remove the else branch as well?
return len;
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index d94ef37480bd..623db72ad66b 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -559,14 +559,15 @@ static ssize_t nullb_device_badblocks_store(struct config_item *item,
goto out;
/* enable badblocks */
cmpxchg(&t_dev->badblocks.shift, -1, 0);
- if (buf[0] == '+')
- ret = badblocks_set(&t_dev->badblocks, start,
- end - start + 1, 1);
- else
- ret = badblocks_clear(&t_dev->badblocks, start,
- end - start + 1);
- if (ret == 0)
- ret = count;
+ if (buf[0] == '+') {
+ if (badblocks_set(&t_dev->badblocks, start,
+ end - start + 1, 1))
+ ret = count;
+ } else {
+ if (badblocks_clear(&t_dev->badblocks, start,
+ end - start + 1))
else if ()
Reviewed-by: Yu Kuai <yukuai3@xxxxxxxxxx>
Thanks
+ ret = count;
+ }
out:
kfree(orig);
return ret;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 30b3dbbce2d2..49d826e475cb 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1748,7 +1748,7 @@ static int super_1_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor_
count <<= sb->bblog_shift;
if (bb + 1 == 0)
break;
- if (badblocks_set(&rdev->badblocks, sector, count, 1))
+ if (!badblocks_set(&rdev->badblocks, sector, count, 1))
return -EINVAL;
}
} else if (sb->bblog_offset != 0)
@@ -9846,7 +9846,6 @@ int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
int is_new)
{
struct mddev *mddev = rdev->mddev;
- int rv;
/*
* Recording new badblocks for faulty rdev will force unnecessary
@@ -9862,33 +9861,35 @@ int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
s += rdev->new_data_offset;
else
s += rdev->data_offset;
- rv = badblocks_set(&rdev->badblocks, s, sectors, 0);
- if (rv == 0) {
- /* Make sure they get written out promptly */
- if (test_bit(ExternalBbl, &rdev->flags))
- sysfs_notify_dirent_safe(rdev->sysfs_unack_badblocks);
- sysfs_notify_dirent_safe(rdev->sysfs_state);
- set_mask_bits(&mddev->sb_flags, 0,
- BIT(MD_SB_CHANGE_CLEAN) | BIT(MD_SB_CHANGE_PENDING));
- md_wakeup_thread(rdev->mddev->thread);
- return 1;
- } else
+
+ if (!badblocks_set(&rdev->badblocks, s, sectors, 0))
return 0;
+
+ /* Make sure they get written out promptly */
+ if (test_bit(ExternalBbl, &rdev->flags))
+ sysfs_notify_dirent_safe(rdev->sysfs_unack_badblocks);
+ sysfs_notify_dirent_safe(rdev->sysfs_state);
+ set_mask_bits(&mddev->sb_flags, 0,
+ BIT(MD_SB_CHANGE_CLEAN) | BIT(MD_SB_CHANGE_PENDING));
+ md_wakeup_thread(rdev->mddev->thread);
+ return 1;
}
EXPORT_SYMBOL_GPL(rdev_set_badblocks);
int rdev_clear_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
int is_new)
{
- int rv;
if (is_new)
s += rdev->new_data_offset;
else
s += rdev->data_offset;
- rv = badblocks_clear(&rdev->badblocks, s, sectors);
- if ((rv == 0) && test_bit(ExternalBbl, &rdev->flags))
+
+ if (!badblocks_clear(&rdev->badblocks, s, sectors))
+ return 0;
+
+ if (test_bit(ExternalBbl, &rdev->flags))
sysfs_notify_dirent_safe(rdev->sysfs_badblocks);
- return rv;
+ return 1;
}
EXPORT_SYMBOL_GPL(rdev_clear_badblocks);
diff --git a/drivers/nvdimm/badrange.c b/drivers/nvdimm/badrange.c
index a002ea6fdd84..ee478ccde7c6 100644
--- a/drivers/nvdimm/badrange.c
+++ b/drivers/nvdimm/badrange.c
@@ -167,7 +167,7 @@ static void set_badblock(struct badblocks *bb, sector_t s, int num)
dev_dbg(bb->dev, "Found a bad range (0x%llx, 0x%llx)\n",
(u64) s * 512, (u64) num * 512);
/* this isn't an error as the hardware will still throw an exception */
- if (badblocks_set(bb, s, num, 1))
+ if (!badblocks_set(bb, s, num, 1))
dev_info_once(bb->dev, "%s: failed for sector %llx\n",
__func__, (u64) s);
}
diff --git a/include/linux/badblocks.h b/include/linux/badblocks.h
index 670f2dae692f..8764bed9ff16 100644
--- a/include/linux/badblocks.h
+++ b/include/linux/badblocks.h
@@ -50,9 +50,9 @@ struct badblocks_context {
int badblocks_check(struct badblocks *bb, sector_t s, int sectors,
sector_t *first_bad, int *bad_sectors);
-int badblocks_set(struct badblocks *bb, sector_t s, int sectors,
- int acknowledged);
-int badblocks_clear(struct badblocks *bb, sector_t s, int sectors);
+bool badblocks_set(struct badblocks *bb, sector_t s, int sectors,
+ int acknowledged);
+bool badblocks_clear(struct badblocks *bb, sector_t s, int sectors);
void ack_all_badblocks(struct badblocks *bb);
ssize_t badblocks_show(struct badblocks *bb, char *page, int unack);
ssize_t badblocks_store(struct badblocks *bb, const char *page, size_t len,
