| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Sat, 3 Sep 2022 11:01:46 +0800
From: Jason Yan <yanaijie@...wei.com>
To: <tytso@....edu>, <adilger.kernel@...ger.ca>, <jack@...e.cz>,
<ritesh.list@...il.com>, <lczerner@...hat.com>,
<linux-ext4@...r.kernel.org>
CC: Jason Yan <yanaijie@...wei.com>
Subject: [PATCH v2 03/13] ext4: factor out ext4_set_def_opts()
Factor out ext4_set_def_opts(). No functional change.
Signed-off-by: Jason Yan <yanaijie@...wei.com>
Reviewed-by: Jan Kara <jack@...e.cz>
---
fs/ext4/super.c | 105 ++++++++++++++++++++++++++----------------------
1 file changed, 56 insertions(+), 49 deletions(-)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 6fced457ba3f..7cc499a221ff 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4311,6 +4311,61 @@ static struct ext4_sb_info *ext4_alloc_sbi(struct super_block *sb)
return NULL;
}
+static void ext4_set_def_opts(struct super_block *sb,
+ struct ext4_super_block *es)
+{
+ unsigned long def_mount_opts;
+
+ /* Set defaults before we parse the mount options */
+ def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
+ set_opt(sb, INIT_INODE_TABLE);
+ if (def_mount_opts & EXT4_DEFM_DEBUG)
+ set_opt(sb, DEBUG);
+ if (def_mount_opts & EXT4_DEFM_BSDGROUPS)
+ set_opt(sb, GRPID);
+ if (def_mount_opts & EXT4_DEFM_UID16)
+ set_opt(sb, NO_UID32);
+ /* xattr user namespace & acls are now defaulted on */
+ set_opt(sb, XATTR_USER);
+#ifdef CONFIG_EXT4_FS_POSIX_ACL
+ set_opt(sb, POSIX_ACL);
+#endif
+ if (ext4_has_feature_fast_commit(sb))
+ set_opt2(sb, JOURNAL_FAST_COMMIT);
+ /* don't forget to enable journal_csum when metadata_csum is enabled. */
+ if (ext4_has_metadata_csum(sb))
+ set_opt(sb, JOURNAL_CHECKSUM);
+
+ if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA)
+ set_opt(sb, JOURNAL_DATA);
+ else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_ORDERED)
+ set_opt(sb, ORDERED_DATA);
+ else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_WBACK)
+ set_opt(sb, WRITEBACK_DATA);
+
+ if (le16_to_cpu(es->s_errors) == EXT4_ERRORS_PANIC)
+ set_opt(sb, ERRORS_PANIC);
+ else if (le16_to_cpu(es->s_errors) == EXT4_ERRORS_CONTINUE)
+ set_opt(sb, ERRORS_CONT);
+ else
+ set_opt(sb, ERRORS_RO);
+ /* block_validity enabled by default; disable with noblock_validity */
+ set_opt(sb, BLOCK_VALIDITY);
+ if (def_mount_opts & EXT4_DEFM_DISCARD)
+ set_opt(sb, DISCARD);
+
+ if ((def_mount_opts & EXT4_DEFM_NOBARRIER) == 0)
+ set_opt(sb, BARRIER);
+
+ /*
+ * enable delayed allocation by default
+ * Use -o nodelalloc to turn it off
+ */
+ if (!IS_EXT3_SB(sb) && !IS_EXT2_SB(sb) &&
+ ((def_mount_opts & EXT4_DEFM_NODELALLOC) == 0))
+ set_opt(sb, DELALLOC);
+}
+
static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
{
struct buffer_head *bh, **group_desc;
@@ -4320,7 +4375,6 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
ext4_fsblk_t block;
ext4_fsblk_t logical_sb_block;
unsigned long offset = 0;
- unsigned long def_mount_opts;
struct inode *root;
int ret = -ENOMEM;
int blocksize, clustersize;
@@ -4420,43 +4474,7 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
sbi->s_csum_seed = ext4_chksum(sbi, ~0, es->s_uuid,
sizeof(es->s_uuid));
- /* Set defaults before we parse the mount options */
- def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
- set_opt(sb, INIT_INODE_TABLE);
- if (def_mount_opts & EXT4_DEFM_DEBUG)
- set_opt(sb, DEBUG);
- if (def_mount_opts & EXT4_DEFM_BSDGROUPS)
- set_opt(sb, GRPID);
- if (def_mount_opts & EXT4_DEFM_UID16)
- set_opt(sb, NO_UID32);
- /* xattr user namespace & acls are now defaulted on */
- set_opt(sb, XATTR_USER);
-#ifdef CONFIG_EXT4_FS_POSIX_ACL
- set_opt(sb, POSIX_ACL);
-#endif
- if (ext4_has_feature_fast_commit(sb))
- set_opt2(sb, JOURNAL_FAST_COMMIT);
- /* don't forget to enable journal_csum when metadata_csum is enabled. */
- if (ext4_has_metadata_csum(sb))
- set_opt(sb, JOURNAL_CHECKSUM);
-
- if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_DATA)
- set_opt(sb, JOURNAL_DATA);
- else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_ORDERED)
- set_opt(sb, ORDERED_DATA);
- else if ((def_mount_opts & EXT4_DEFM_JMODE) == EXT4_DEFM_JMODE_WBACK)
- set_opt(sb, WRITEBACK_DATA);
-
- if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_PANIC)
- set_opt(sb, ERRORS_PANIC);
- else if (le16_to_cpu(sbi->s_es->s_errors) == EXT4_ERRORS_CONTINUE)
- set_opt(sb, ERRORS_CONT);
- else
- set_opt(sb, ERRORS_RO);
- /* block_validity enabled by default; disable with noblock_validity */
- set_opt(sb, BLOCK_VALIDITY);
- if (def_mount_opts & EXT4_DEFM_DISCARD)
- set_opt(sb, DISCARD);
+ ext4_set_def_opts(sb, es);
sbi->s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));
sbi->s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));
@@ -4464,17 +4482,6 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
sbi->s_min_batch_time = EXT4_DEF_MIN_BATCH_TIME;
sbi->s_max_batch_time = EXT4_DEF_MAX_BATCH_TIME;
- if ((def_mount_opts & EXT4_DEFM_NOBARRIER) == 0)
- set_opt(sb, BARRIER);
-
- /*
- * enable delayed allocation by default
- * Use -o nodelalloc to turn it off
- */
- if (!IS_EXT3_SB(sb) && !IS_EXT2_SB(sb) &&
- ((def_mount_opts & EXT4_DEFM_NODELALLOC) == 0))
- set_opt(sb, DELALLOC);
-
/*
* set default s_li_wait_mult for lazyinit, for the case there is
* no mount option specified.
--
2.31.1
Powered by blists - more mailing lists