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authorJohannes Thumshirn <johannes.thumshirn@wdc.com>2025-04-29 15:42:53 +0200
committerDamien Le Moal <dlemoal@kernel.org>2025-06-13 15:49:00 +0900
commit6982100bb8297c46122cac4f684dcf44cb7d0d8c (patch)
tree6404f09e8e541462696300974ba17a0bad5336a6
parent19272b37aa4f83ca52bdf9c16d5d81bdd1354494 (diff)
zonefs: use ZONEFS_SUPER_SIZE instead of PAGE_SIZE
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>
-rw-r--r--fs/zonefs/super.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index d165eb979f21..4dc7f967c861 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -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;