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path: root/fs/btrfs/super.c
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Diffstat (limited to 'fs/btrfs/super.c')
-rw-r--r--fs/btrfs/super.c112
1 files changed, 50 insertions, 62 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index c91a51f1e8f2..fa2f33fe8c6c 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -411,8 +411,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
bool saved_compress_force;
int no_compress = 0;
- cache_gen = btrfs_super_cache_generation(root->fs_info->super_copy);
- if (btrfs_fs_compat_ro(root->fs_info, FREE_SPACE_TREE))
+ cache_gen = btrfs_super_cache_generation(info->super_copy);
+ if (btrfs_fs_compat_ro(info, FREE_SPACE_TREE))
btrfs_set_opt(info->mount_opt, FREE_SPACE_TREE);
else if (cache_gen)
btrfs_set_opt(info->mount_opt, SPACE_CACHE);
@@ -442,7 +442,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
token = match_token(p, tokens, args);
switch (token) {
case Opt_degraded:
- btrfs_info(root->fs_info, "allowing degraded mounts");
+ btrfs_info(info, "allowing degraded mounts");
btrfs_set_opt(info->mount_opt, DEGRADED);
break;
case Opt_subvol:
@@ -461,11 +461,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
case Opt_datasum:
if (btrfs_test_opt(info, NODATASUM)) {
if (btrfs_test_opt(info, NODATACOW))
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"setting datasum, datacow enabled");
else
- btrfs_info(root->fs_info,
- "setting datasum");
+ btrfs_info(info, "setting datasum");
}
btrfs_clear_opt(info->mount_opt, NODATACOW);
btrfs_clear_opt(info->mount_opt, NODATASUM);
@@ -474,11 +473,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
if (!btrfs_test_opt(info, NODATACOW)) {
if (!btrfs_test_opt(info, COMPRESS) ||
!btrfs_test_opt(info, FORCE_COMPRESS)) {
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"setting nodatacow, compression disabled");
} else {
- btrfs_info(root->fs_info,
- "setting nodatacow");
+ btrfs_info(info, "setting nodatacow");
}
}
btrfs_clear_opt(info->mount_opt, COMPRESS);
@@ -545,8 +543,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
compress_force != saved_compress_force)) ||
(!btrfs_test_opt(info, COMPRESS) &&
no_compress == 1)) {
- btrfs_info(root->fs_info,
- "%s %s compression",
+ btrfs_info(info, "%s %s compression",
(compress_force) ? "force" : "use",
compress_type);
}
@@ -594,10 +591,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
if (info->max_inline) {
info->max_inline = min_t(u64,
info->max_inline,
- root->fs_info->sectorsize);
+ info->sectorsize);
}
- btrfs_info(root->fs_info, "max_inline at %llu",
- info->max_inline);
+ btrfs_info(info, "max_inline at %llu",
+ info->max_inline);
} else {
ret = -ENOMEM;
goto out;
@@ -610,8 +607,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
info->alloc_start = memparse(num, NULL);
mutex_unlock(&info->chunk_mutex);
kfree(num);
- btrfs_info(root->fs_info,
- "allocations start at %llu",
+ btrfs_info(info, "allocations start at %llu",
info->alloc_start);
} else {
ret = -ENOMEM;
@@ -620,16 +616,15 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
break;
case Opt_acl:
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
- root->fs_info->sb->s_flags |= MS_POSIXACL;
+ info->sb->s_flags |= MS_POSIXACL;
break;
#else
- btrfs_err(root->fs_info,
- "support for ACL not compiled in!");
+ btrfs_err(info, "support for ACL not compiled in!");
ret = -EINVAL;
goto out;
#endif
case Opt_noacl:
- root->fs_info->sb->s_flags &= ~MS_POSIXACL;
+ info->sb->s_flags &= ~MS_POSIXACL;
break;
case Opt_notreelog:
btrfs_set_and_info(info, NOTREELOG,
@@ -658,8 +653,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
goto out;
} else if (intarg >= 0) {
info->metadata_ratio = intarg;
- btrfs_info(root->fs_info, "metadata ratio %d",
- info->metadata_ratio);
+ btrfs_info(info, "metadata ratio %d",
+ info->metadata_ratio);
} else {
ret = -EINVAL;
goto out;
@@ -677,15 +672,14 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
case Opt_space_cache_version:
if (token == Opt_space_cache ||
strcmp(args[0].from, "v1") == 0) {
- btrfs_clear_opt(root->fs_info->mount_opt,
+ btrfs_clear_opt(info->mount_opt,
FREE_SPACE_TREE);
btrfs_set_and_info(info, SPACE_CACHE,
- "enabling disk space caching");
+ "enabling disk space caching");
} else if (strcmp(args[0].from, "v2") == 0) {
- btrfs_clear_opt(root->fs_info->mount_opt,
+ btrfs_clear_opt(info->mount_opt,
SPACE_CACHE);
- btrfs_set_and_info(info,
- FREE_SPACE_TREE,
+ btrfs_set_and_info(info, FREE_SPACE_TREE,
"enabling free space tree");
} else {
ret = -EINVAL;
@@ -697,14 +691,12 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
break;
case Opt_no_space_cache:
if (btrfs_test_opt(info, SPACE_CACHE)) {
- btrfs_clear_and_info(info,
- SPACE_CACHE,
- "disabling disk space caching");
+ btrfs_clear_and_info(info, SPACE_CACHE,
+ "disabling disk space caching");
}
if (btrfs_test_opt(info, FREE_SPACE_TREE)) {
- btrfs_clear_and_info(info,
- FREE_SPACE_TREE,
- "disabling free space tree");
+ btrfs_clear_and_info(info, FREE_SPACE_TREE,
+ "disabling free space tree");
}
break;
case Opt_inode_cache:
@@ -737,10 +729,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
"disabling auto defrag");
break;
case Opt_recovery:
- btrfs_warn(root->fs_info,
+ btrfs_warn(info,
"'recovery' is deprecated, use 'usebackuproot' instead");
case Opt_usebackuproot:
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"trying to use backup root at mount time");
btrfs_set_opt(info->mount_opt, USEBACKUPROOT);
break;
@@ -749,14 +741,14 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
break;
#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
case Opt_check_integrity_including_extent_data:
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"enabling check integrity including extent data");
btrfs_set_opt(info->mount_opt,
CHECK_INTEGRITY_INCLUDING_EXTENT_DATA);
btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY);
break;
case Opt_check_integrity:
- btrfs_info(root->fs_info, "enabling check integrity");
+ btrfs_info(info, "enabling check integrity");
btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY);
break;
case Opt_check_integrity_print_mask:
@@ -765,7 +757,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
goto out;
} else if (intarg >= 0) {
info->check_integrity_print_mask = intarg;
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"check_integrity_print_mask 0x%x",
info->check_integrity_print_mask);
} else {
@@ -777,8 +769,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
case Opt_check_integrity_including_extent_data:
case Opt_check_integrity:
case Opt_check_integrity_print_mask:
- btrfs_err(root->fs_info,
- "support for check_integrity* not compiled in!");
+ btrfs_err(info,
+ "support for check_integrity* not compiled in!");
ret = -EINVAL;
goto out;
#endif
@@ -798,20 +790,19 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
intarg = 0;
ret = match_int(&args[0], &intarg);
if (ret < 0) {
- btrfs_err(root->fs_info,
- "invalid commit interval");
+ btrfs_err(info, "invalid commit interval");
ret = -EINVAL;
goto out;
}
if (intarg > 0) {
if (intarg > 300) {
- btrfs_warn(root->fs_info,
+ btrfs_warn(info,
"excessive commit interval %d",
intarg);
}
info->commit_interval = intarg;
} else {
- btrfs_info(root->fs_info,
+ btrfs_info(info,
"using default commit interval %ds",
BTRFS_DEFAULT_COMMIT_INTERVAL);
info->commit_interval = BTRFS_DEFAULT_COMMIT_INTERVAL;
@@ -819,23 +810,22 @@ int btrfs_parse_options(struct btrfs_root *root, char *options,
break;
#ifdef CONFIG_BTRFS_DEBUG
case Opt_fragment_all:
- btrfs_info(root->fs_info, "fragmenting all space");
+ btrfs_info(info, "fragmenting all space");
btrfs_set_opt(info->mount_opt, FRAGMENT_DATA);
btrfs_set_opt(info->mount_opt, FRAGMENT_METADATA);
break;
case Opt_fragment_metadata:
- btrfs_info(root->fs_info, "fragmenting metadata");
+ btrfs_info(info, "fragmenting metadata");
btrfs_set_opt(info->mount_opt,
FRAGMENT_METADATA);
break;
case Opt_fragment_data:
- btrfs_info(root->fs_info, "fragmenting data");
+ btrfs_info(info, "fragmenting data");
btrfs_set_opt(info->mount_opt, FRAGMENT_DATA);
break;
#endif
case Opt_err:
- btrfs_info(root->fs_info,
- "unrecognized mount option '%s'", p);
+ btrfs_info(info, "unrecognized mount option '%s'", p);
ret = -EINVAL;
goto out;
default:
@@ -847,22 +837,22 @@ check:
* Extra check for current option against current flag
*/
if (btrfs_test_opt(info, NOLOGREPLAY) && !(new_flags & MS_RDONLY)) {
- btrfs_err(root->fs_info,
+ btrfs_err(info,
"nologreplay must be used with ro mount option");
ret = -EINVAL;
}
out:
- if (btrfs_fs_compat_ro(root->fs_info, FREE_SPACE_TREE) &&
+ if (btrfs_fs_compat_ro(info, FREE_SPACE_TREE) &&
!btrfs_test_opt(info, FREE_SPACE_TREE) &&
!btrfs_test_opt(info, CLEAR_CACHE)) {
- btrfs_err(root->fs_info, "cannot disable free space tree");
+ btrfs_err(info, "cannot disable free space tree");
ret = -EINVAL;
}
if (!ret && btrfs_test_opt(info, SPACE_CACHE))
- btrfs_info(root->fs_info, "disk space caching is enabled");
+ btrfs_info(info, "disk space caching is enabled");
if (!ret && btrfs_test_opt(info, FREE_SPACE_TREE))
- btrfs_info(root->fs_info, "using free space tree");
+ btrfs_info(info, "using free space tree");
kfree(orig);
return ret;
}
@@ -1223,7 +1213,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
{
struct btrfs_fs_info *info = btrfs_sb(dentry->d_sb);
- struct btrfs_root *root = info->tree_root;
char *compress_type;
if (btrfs_test_opt(info, DEGRADED))
@@ -1265,7 +1254,7 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
seq_puts(seq, ",flushoncommit");
if (btrfs_test_opt(info, DISCARD))
seq_puts(seq, ",discard");
- if (!(root->fs_info->sb->s_flags & MS_POSIXACL))
+ if (!(info->sb->s_flags & MS_POSIXACL))
seq_puts(seq, ",noacl");
if (btrfs_test_opt(info, SPACE_CACHE))
seq_puts(seq, ",space_cache");
@@ -1788,7 +1777,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
if (ret)
goto restore;
} else {
- if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) {
+ if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {
btrfs_err(fs_info,
"Remounting read-write after error is not allowed");
ret = -EINVAL;
@@ -2246,9 +2235,10 @@ static long btrfs_control_ioctl(struct file *file, unsigned int cmd,
static int btrfs_freeze(struct super_block *sb)
{
struct btrfs_trans_handle *trans;
- struct btrfs_root *root = btrfs_sb(sb)->tree_root;
+ struct btrfs_fs_info *fs_info = btrfs_sb(sb);
+ struct btrfs_root *root = fs_info->tree_root;
- root->fs_info->fs_frozen = 1;
+ fs_info->fs_frozen = 1;
/*
* We don't need a barrier here, we'll wait for any transaction that
* could be in progress on other threads (and do delayed iputs that
@@ -2267,9 +2257,7 @@ static int btrfs_freeze(struct super_block *sb)
static int btrfs_unfreeze(struct super_block *sb)
{
- struct btrfs_root *root = btrfs_sb(sb)->tree_root;
-
- root->fs_info->fs_frozen = 0;
+ btrfs_sb(sb)->fs_frozen = 0;
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-27 13:11:10 +0000