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Diffstat (limited to 'fs/ext4/super.c')
-rw-r--r--fs/ext4/super.c109
1 files changed, 83 insertions, 26 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 18f68f09d393..0886fe82e9c4 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -373,6 +373,9 @@ static void ext4_journal_commit_callback(journal_t *journal, transaction_t *txn)
struct ext4_journal_cb_entry *jce;
BUG_ON(txn->t_state == T_FINISHED);
+
+ ext4_process_freed_data(sb, txn->t_tid);
+
spin_lock(&sbi->s_md_lock);
while (!list_empty(&txn->t_private_list)) {
jce = list_entry(txn->t_private_list.next,
@@ -927,9 +930,13 @@ static void ext4_put_super(struct super_block *sb)
invalidate_bdev(sbi->journal_bdev);
ext4_blkdev_remove(sbi);
}
- if (sbi->s_mb_cache) {
- ext4_xattr_destroy_cache(sbi->s_mb_cache);
- sbi->s_mb_cache = NULL;
+ if (sbi->s_ea_inode_cache) {
+ ext4_xattr_destroy_cache(sbi->s_ea_inode_cache);
+ sbi->s_ea_inode_cache = NULL;
+ }
+ if (sbi->s_ea_block_cache) {
+ ext4_xattr_destroy_cache(sbi->s_ea_block_cache);
+ sbi->s_ea_block_cache = NULL;
}
if (sbi->s_mmp_tsk)
kthread_stop(sbi->s_mmp_tsk);
@@ -1143,7 +1150,16 @@ static int ext4_set_context(struct inode *inode, const void *ctx, size_t len,
void *fs_data)
{
handle_t *handle = fs_data;
- int res, res2, retries = 0;
+ int res, res2, credits, retries = 0;
+
+ /*
+ * Encrypting the root directory is not allowed because e2fsck expects
+ * lost+found to exist and be unencrypted, and encrypting the root
+ * directory would imply encrypting the lost+found directory as well as
+ * the filename "lost+found" itself.
+ */
+ if (inode->i_ino == EXT4_ROOT_INO)
+ return -EPERM;
res = ext4_convert_inline_data(inode);
if (res)
@@ -1178,8 +1194,12 @@ static int ext4_set_context(struct inode *inode, const void *ctx, size_t len,
if (res)
return res;
retry:
- handle = ext4_journal_start(inode, EXT4_HT_MISC,
- ext4_jbd2_credits_xattr(inode));
+ res = ext4_xattr_set_credits(inode, len, false /* is_create */,
+ &credits);
+ if (res)
+ return res;
+
+ handle = ext4_journal_start(inode, EXT4_HT_MISC, credits);
if (IS_ERR(handle))
return PTR_ERR(handle);
@@ -1256,16 +1276,17 @@ static struct dquot **ext4_get_dquots(struct inode *inode)
}
static const struct dquot_operations ext4_quota_operations = {
- .get_reserved_space = ext4_get_reserved_space,
- .write_dquot = ext4_write_dquot,
- .acquire_dquot = ext4_acquire_dquot,
- .release_dquot = ext4_release_dquot,
- .mark_dirty = ext4_mark_dquot_dirty,
- .write_info = ext4_write_info,
- .alloc_dquot = dquot_alloc,
- .destroy_dquot = dquot_destroy,
- .get_projid = ext4_get_projid,
- .get_next_id = ext4_get_next_id,
+ .get_reserved_space = ext4_get_reserved_space,
+ .write_dquot = ext4_write_dquot,
+ .acquire_dquot = ext4_acquire_dquot,
+ .release_dquot = ext4_release_dquot,
+ .mark_dirty = ext4_mark_dquot_dirty,
+ .write_info = ext4_write_info,
+ .alloc_dquot = dquot_alloc,
+ .destroy_dquot = dquot_destroy,
+ .get_projid = ext4_get_projid,
+ .get_inode_usage = ext4_get_inode_usage,
+ .get_next_id = ext4_get_next_id,
};
static const struct quotactl_ops ext4_qctl_operations = {
@@ -1328,7 +1349,7 @@ enum {
Opt_inode_readahead_blks, Opt_journal_ioprio,
Opt_dioread_nolock, Opt_dioread_lock,
Opt_discard, Opt_nodiscard, Opt_init_itable, Opt_noinit_itable,
- Opt_max_dir_size_kb, Opt_nojournal_checksum,
+ Opt_max_dir_size_kb, Opt_nojournal_checksum, Opt_nombcache,
};
static const match_table_t tokens = {
@@ -1411,6 +1432,8 @@ static const match_table_t tokens = {
{Opt_noinit_itable, "noinit_itable"},
{Opt_max_dir_size_kb, "max_dir_size_kb=%u"},
{Opt_test_dummy_encryption, "test_dummy_encryption"},
+ {Opt_nombcache, "nombcache"},
+ {Opt_nombcache, "no_mbcache"}, /* for backward compatibility */
{Opt_removed, "check=none"}, /* mount option from ext2/3 */
{Opt_removed, "nocheck"}, /* mount option from ext2/3 */
{Opt_removed, "reservation"}, /* mount option from ext2/3 */
@@ -1618,6 +1641,7 @@ static const struct mount_opts {
{Opt_jqfmt_vfsv1, QFMT_VFS_V1, MOPT_QFMT},
{Opt_max_dir_size_kb, 0, MOPT_GTE0},
{Opt_test_dummy_encryption, 0, MOPT_GTE0},
+ {Opt_nombcache, EXT4_MOUNT_NO_MBCACHE, MOPT_SET},
{Opt_err, 0, 0}
};
@@ -3445,7 +3469,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
}
/* Load the checksum driver */
- if (ext4_has_feature_metadata_csum(sb)) {
+ if (ext4_has_feature_metadata_csum(sb) ||
+ ext4_has_feature_ea_inode(sb)) {
sbi->s_chksum_driver = crypto_alloc_shash("crc32c", 0, 0);
if (IS_ERR(sbi->s_chksum_driver)) {
ext4_msg(sb, KERN_ERR, "Cannot load crc32c driver.");
@@ -3467,7 +3492,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
/* Precompute checksum seed for all metadata */
if (ext4_has_feature_csum_seed(sb))
sbi->s_csum_seed = le32_to_cpu(es->s_checksum_seed);
- else if (ext4_has_metadata_csum(sb))
+ else if (ext4_has_metadata_csum(sb) || ext4_has_feature_ea_inode(sb))
sbi->s_csum_seed = ext4_chksum(sbi, ~0, es->s_uuid,
sizeof(es->s_uuid));
@@ -3597,6 +3622,16 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
"The Hurd can't support 64-bit file systems");
goto failed_mount;
}
+
+ /*
+ * ea_inode feature uses l_i_version field which is not
+ * available in HURD_COMPAT mode.
+ */
+ if (ext4_has_feature_ea_inode(sb)) {
+ ext4_msg(sb, KERN_ERR,
+ "ea_inode feature is not supported for Hurd");
+ goto failed_mount;
+ }
}
if (IS_EXT2_SB(sb)) {
@@ -4061,10 +4096,22 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_journal->j_commit_callback = ext4_journal_commit_callback;
no_journal:
- sbi->s_mb_cache = ext4_xattr_create_cache();
- if (!sbi->s_mb_cache) {
- ext4_msg(sb, KERN_ERR, "Failed to create an mb_cache");
- goto failed_mount_wq;
+ if (!test_opt(sb, NO_MBCACHE)) {
+ sbi->s_ea_block_cache = ext4_xattr_create_cache();
+ if (!sbi->s_ea_block_cache) {
+ ext4_msg(sb, KERN_ERR,
+ "Failed to create ea_block_cache");
+ goto failed_mount_wq;
+ }
+
+ if (ext4_has_feature_ea_inode(sb)) {
+ sbi->s_ea_inode_cache = ext4_xattr_create_cache();
+ if (!sbi->s_ea_inode_cache) {
+ ext4_msg(sb, KERN_ERR,
+ "Failed to create ea_inode_cache");
+ goto failed_mount_wq;
+ }
+ }
}
if ((DUMMY_ENCRYPTION_ENABLED(sbi) || ext4_has_feature_encrypt(sb)) &&
@@ -4296,9 +4343,13 @@ failed_mount4:
if (EXT4_SB(sb)->rsv_conversion_wq)
destroy_workqueue(EXT4_SB(sb)->rsv_conversion_wq);
failed_mount_wq:
- if (sbi->s_mb_cache) {
- ext4_xattr_destroy_cache(sbi->s_mb_cache);
- sbi->s_mb_cache = NULL;
+ if (sbi->s_ea_inode_cache) {
+ ext4_xattr_destroy_cache(sbi->s_ea_inode_cache);
+ sbi->s_ea_inode_cache = NULL;
+ }
+ if (sbi->s_ea_block_cache) {
+ ext4_xattr_destroy_cache(sbi->s_ea_block_cache);
+ sbi->s_ea_block_cache = NULL;
}
if (sbi->s_journal) {
jbd2_journal_destroy(sbi->s_journal);
@@ -4957,6 +5008,12 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
}
}
+ if ((sbi->s_mount_opt ^ old_opts.s_mount_opt) & EXT4_MOUNT_NO_MBCACHE) {
+ ext4_msg(sb, KERN_ERR, "can't enable nombcache during remount");
+ err = -EINVAL;
+ goto restore_opts;
+ }
+
if ((sbi->s_mount_opt ^ old_opts.s_mount_opt) & EXT4_MOUNT_DAX) {
ext4_msg(sb, KERN_WARNING, "warning: refusing change of "
"dax flag with busy inodes while remounting");
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-22 08:50:09 +0300