summaryrefslogtreecommitdiff
path: root/fs/ext4
diff options
context:
space:
mode:
authorJason Yan <yanaijie@huawei.com>2023-03-23 17:05:10 +0300
committerTheodore Ts'o <tytso@mit.edu>2023-04-15 06:08:02 +0300
commitdb9345d9e6f075e1ec26afadf744078ead935fec (patch)
tree89dc28c99bd857da94b87ba0748ec2754d8a6c1b /fs/ext4
parentd0ab8368c175f7b5ef0851283a2ba362a9ab327a (diff)
downloadlinux-db9345d9e6f075e1ec26afadf744078ead935fec.tar.xz
ext4: factor out ext4_hash_info_init()
Factor out ext4_hash_info_init() to simplify __ext4_fill_super(). No functional change. Signed-off-by: Jason Yan <yanaijie@huawei.com> Link: https://lore.kernel.org/r/20230323140517.1070239-2-yanaijie@huawei.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/super.c50
1 files changed, 30 insertions, 20 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 690faf766d23..13c0345c5387 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5024,6 +5024,35 @@ out:
return ret;
}
+static void ext4_hash_info_init(struct super_block *sb)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ struct ext4_super_block *es = sbi->s_es;
+ unsigned int i;
+
+ for (i = 0; i < 4; i++)
+ sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);
+
+ sbi->s_def_hash_version = es->s_def_hash_version;
+ if (ext4_has_feature_dir_index(sb)) {
+ i = le32_to_cpu(es->s_flags);
+ if (i & EXT2_FLAGS_UNSIGNED_HASH)
+ sbi->s_hash_unsigned = 3;
+ else if ((i & EXT2_FLAGS_SIGNED_HASH) == 0) {
+#ifdef __CHAR_UNSIGNED__
+ if (!sb_rdonly(sb))
+ es->s_flags |=
+ cpu_to_le32(EXT2_FLAGS_UNSIGNED_HASH);
+ sbi->s_hash_unsigned = 3;
+#else
+ if (!sb_rdonly(sb))
+ es->s_flags |=
+ cpu_to_le32(EXT2_FLAGS_SIGNED_HASH);
+#endif
+ }
+ }
+}
+
static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
{
struct ext4_super_block *es = NULL;
@@ -5179,26 +5208,7 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
sbi->s_addr_per_block_bits = ilog2(EXT4_ADDR_PER_BLOCK(sb));
sbi->s_desc_per_block_bits = ilog2(EXT4_DESC_PER_BLOCK(sb));
- for (i = 0; i < 4; i++)
- sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);
- sbi->s_def_hash_version = es->s_def_hash_version;
- if (ext4_has_feature_dir_index(sb)) {
- i = le32_to_cpu(es->s_flags);
- if (i & EXT2_FLAGS_UNSIGNED_HASH)
- sbi->s_hash_unsigned = 3;
- else if ((i & EXT2_FLAGS_SIGNED_HASH) == 0) {
-#ifdef __CHAR_UNSIGNED__
- if (!sb_rdonly(sb))
- es->s_flags |=
- cpu_to_le32(EXT2_FLAGS_UNSIGNED_HASH);
- sbi->s_hash_unsigned = 3;
-#else
- if (!sb_rdonly(sb))
- es->s_flags |=
- cpu_to_le32(EXT2_FLAGS_SIGNED_HASH);
-#endif
- }
- }
+ ext4_hash_info_init(sb);
if (ext4_handle_clustersize(sb))
goto failed_mount;