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zonefs: use ZONEFS_SUPER_SIZE instead of PAGE_SIZE

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Use ZONEFS_SUPER_SIZE constant instead of PAGE_SIZE allocating memory for
reading the super block in zonefs_read_super().

While PAGE_SIZE technically isn't incorrect as Linux doesn't support pages
smaller than 4k ZONEFS_SUPER_SIZE is semantically more correct.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
This commit is contained in:
Johannes Thumshirn
2025-04-29 15:42:53 +02:00
committed by Damien Le Moal
parent 19272b37aa
commit 6982100bb8
1 changed files with 3 additions and 2 deletions
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5
fs/zonefs/super.c
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@@ -1113,11 +1113,12 @@ static int zonefs_read_super(struct super_block *sb)
u32 crc, stored_crc;
int ret;
super = kmalloc(PAGE_SIZE, GFP_KERNEL);
super = kmalloc(ZONEFS_SUPER_SIZE, GFP_KERNEL);
if (!super)
return -ENOMEM;
ret = bdev_rw_virt(sb->s_bdev, 0, super, PAGE_SIZE, REQ_OP_READ);
ret = bdev_rw_virt(sb->s_bdev, 0, super, ZONEFS_SUPER_SIZE,
REQ_OP_READ);
if (ret)
goto free_super;