Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Miscellaneous ext4 bug fixes"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: Only advertise encrypted_casefold when encryption and unicode are enabled
ext4: fix no-key deletion for encrypt+casefold
ext4: fix memory leak in ext4_fill_super
ext4: fix fast commit alignment issues
ext4: fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed
ext4: fix accessing uninit percpu counter variable with fast_commit
ext4: fix memory leak in ext4_mb_init_backend on error path.
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 77c84d6..cbf37b2 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3206,7 +3206,10 @@
ext4_ext_mark_unwritten(ex2);
err = ext4_ext_insert_extent(handle, inode, ppath, &newex, flags);
- if (err == -ENOSPC && (EXT4_EXT_MAY_ZEROOUT & split_flag)) {
+ if (err != -ENOSPC && err != -EDQUOT)
+ goto out;
+
+ if (EXT4_EXT_MAY_ZEROOUT & split_flag) {
if (split_flag & (EXT4_EXT_DATA_VALID1|EXT4_EXT_DATA_VALID2)) {
if (split_flag & EXT4_EXT_DATA_VALID1) {
err = ext4_ext_zeroout(inode, ex2);
@@ -3232,25 +3235,22 @@
ext4_ext_pblock(&orig_ex));
}
- if (err)
- goto fix_extent_len;
- /* update the extent length and mark as initialized */
- ex->ee_len = cpu_to_le16(ee_len);
- ext4_ext_try_to_merge(handle, inode, path, ex);
- err = ext4_ext_dirty(handle, inode, path + path->p_depth);
- if (err)
- goto fix_extent_len;
-
- /* update extent status tree */
- err = ext4_zeroout_es(inode, &zero_ex);
-
- goto out;
- } else if (err)
- goto fix_extent_len;
-
-out:
- ext4_ext_show_leaf(inode, path);
- return err;
+ if (!err) {
+ /* update the extent length and mark as initialized */
+ ex->ee_len = cpu_to_le16(ee_len);
+ ext4_ext_try_to_merge(handle, inode, path, ex);
+ err = ext4_ext_dirty(handle, inode, path + path->p_depth);
+ if (!err)
+ /* update extent status tree */
+ err = ext4_zeroout_es(inode, &zero_ex);
+ /* If we failed at this point, we don't know in which
+ * state the extent tree exactly is so don't try to fix
+ * length of the original extent as it may do even more
+ * damage.
+ */
+ goto out;
+ }
+ }
fix_extent_len:
ex->ee_len = orig_ex.ee_len;
@@ -3260,6 +3260,9 @@
*/
ext4_ext_dirty(handle, inode, path + path->p_depth);
return err;
+out:
+ ext4_ext_show_leaf(inode, path);
+ return err;
}
/*
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index f98ca4f..e819522 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1288,28 +1288,29 @@
};
static inline void tl_to_darg(struct dentry_info_args *darg,
- struct ext4_fc_tl *tl)
+ struct ext4_fc_tl *tl, u8 *val)
{
- struct ext4_fc_dentry_info *fcd;
+ struct ext4_fc_dentry_info fcd;
- fcd = (struct ext4_fc_dentry_info *)ext4_fc_tag_val(tl);
+ memcpy(&fcd, val, sizeof(fcd));
- darg->parent_ino = le32_to_cpu(fcd->fc_parent_ino);
- darg->ino = le32_to_cpu(fcd->fc_ino);
- darg->dname = fcd->fc_dname;
- darg->dname_len = ext4_fc_tag_len(tl) -
- sizeof(struct ext4_fc_dentry_info);
+ darg->parent_ino = le32_to_cpu(fcd.fc_parent_ino);
+ darg->ino = le32_to_cpu(fcd.fc_ino);
+ darg->dname = val + offsetof(struct ext4_fc_dentry_info, fc_dname);
+ darg->dname_len = le16_to_cpu(tl->fc_len) -
+ sizeof(struct ext4_fc_dentry_info);
}
/* Unlink replay function */
-static int ext4_fc_replay_unlink(struct super_block *sb, struct ext4_fc_tl *tl)
+static int ext4_fc_replay_unlink(struct super_block *sb, struct ext4_fc_tl *tl,
+ u8 *val)
{
struct inode *inode, *old_parent;
struct qstr entry;
struct dentry_info_args darg;
int ret = 0;
- tl_to_darg(&darg, tl);
+ tl_to_darg(&darg, tl, val);
trace_ext4_fc_replay(sb, EXT4_FC_TAG_UNLINK, darg.ino,
darg.parent_ino, darg.dname_len);
@@ -1399,13 +1400,14 @@
}
/* Link replay function */
-static int ext4_fc_replay_link(struct super_block *sb, struct ext4_fc_tl *tl)
+static int ext4_fc_replay_link(struct super_block *sb, struct ext4_fc_tl *tl,
+ u8 *val)
{
struct inode *inode;
struct dentry_info_args darg;
int ret = 0;
- tl_to_darg(&darg, tl);
+ tl_to_darg(&darg, tl, val);
trace_ext4_fc_replay(sb, EXT4_FC_TAG_LINK, darg.ino,
darg.parent_ino, darg.dname_len);
@@ -1450,9 +1452,10 @@
/*
* Inode replay function
*/
-static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl)
+static int ext4_fc_replay_inode(struct super_block *sb, struct ext4_fc_tl *tl,
+ u8 *val)
{
- struct ext4_fc_inode *fc_inode;
+ struct ext4_fc_inode fc_inode;
struct ext4_inode *raw_inode;
struct ext4_inode *raw_fc_inode;
struct inode *inode = NULL;
@@ -1460,9 +1463,9 @@
int inode_len, ino, ret, tag = le16_to_cpu(tl->fc_tag);
struct ext4_extent_header *eh;
- fc_inode = (struct ext4_fc_inode *)ext4_fc_tag_val(tl);
+ memcpy(&fc_inode, val, sizeof(fc_inode));
- ino = le32_to_cpu(fc_inode->fc_ino);
+ ino = le32_to_cpu(fc_inode.fc_ino);
trace_ext4_fc_replay(sb, tag, ino, 0, 0);
inode = ext4_iget(sb, ino, EXT4_IGET_NORMAL);
@@ -1474,12 +1477,13 @@
ext4_fc_record_modified_inode(sb, ino);
- raw_fc_inode = (struct ext4_inode *)fc_inode->fc_raw_inode;
+ raw_fc_inode = (struct ext4_inode *)
+ (val + offsetof(struct ext4_fc_inode, fc_raw_inode));
ret = ext4_get_fc_inode_loc(sb, ino, &iloc);
if (ret)
goto out;
- inode_len = ext4_fc_tag_len(tl) - sizeof(struct ext4_fc_inode);
+ inode_len = le16_to_cpu(tl->fc_len) - sizeof(struct ext4_fc_inode);
raw_inode = ext4_raw_inode(&iloc);
memcpy(raw_inode, raw_fc_inode, offsetof(struct ext4_inode, i_block));
@@ -1547,14 +1551,15 @@
* inode for which we are trying to create a dentry here, should already have
* been replayed before we start here.
*/
-static int ext4_fc_replay_create(struct super_block *sb, struct ext4_fc_tl *tl)
+static int ext4_fc_replay_create(struct super_block *sb, struct ext4_fc_tl *tl,
+ u8 *val)
{
int ret = 0;
struct inode *inode = NULL;
struct inode *dir = NULL;
struct dentry_info_args darg;
- tl_to_darg(&darg, tl);
+ tl_to_darg(&darg, tl, val);
trace_ext4_fc_replay(sb, EXT4_FC_TAG_CREAT, darg.ino,
darg.parent_ino, darg.dname_len);
@@ -1633,9 +1638,9 @@
/* Replay add range tag */
static int ext4_fc_replay_add_range(struct super_block *sb,
- struct ext4_fc_tl *tl)
+ struct ext4_fc_tl *tl, u8 *val)
{
- struct ext4_fc_add_range *fc_add_ex;
+ struct ext4_fc_add_range fc_add_ex;
struct ext4_extent newex, *ex;
struct inode *inode;
ext4_lblk_t start, cur;
@@ -1645,15 +1650,14 @@
struct ext4_ext_path *path = NULL;
int ret;
- fc_add_ex = (struct ext4_fc_add_range *)ext4_fc_tag_val(tl);
- ex = (struct ext4_extent *)&fc_add_ex->fc_ex;
+ memcpy(&fc_add_ex, val, sizeof(fc_add_ex));
+ ex = (struct ext4_extent *)&fc_add_ex.fc_ex;
trace_ext4_fc_replay(sb, EXT4_FC_TAG_ADD_RANGE,
- le32_to_cpu(fc_add_ex->fc_ino), le32_to_cpu(ex->ee_block),
+ le32_to_cpu(fc_add_ex.fc_ino), le32_to_cpu(ex->ee_block),
ext4_ext_get_actual_len(ex));
- inode = ext4_iget(sb, le32_to_cpu(fc_add_ex->fc_ino),
- EXT4_IGET_NORMAL);
+ inode = ext4_iget(sb, le32_to_cpu(fc_add_ex.fc_ino), EXT4_IGET_NORMAL);
if (IS_ERR(inode)) {
jbd_debug(1, "Inode not found.");
return 0;
@@ -1762,32 +1766,33 @@
/* Replay DEL_RANGE tag */
static int
-ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl)
+ext4_fc_replay_del_range(struct super_block *sb, struct ext4_fc_tl *tl,
+ u8 *val)
{
struct inode *inode;
- struct ext4_fc_del_range *lrange;
+ struct ext4_fc_del_range lrange;
struct ext4_map_blocks map;
ext4_lblk_t cur, remaining;
int ret;
- lrange = (struct ext4_fc_del_range *)ext4_fc_tag_val(tl);
- cur = le32_to_cpu(lrange->fc_lblk);
- remaining = le32_to_cpu(lrange->fc_len);
+ memcpy(&lrange, val, sizeof(lrange));
+ cur = le32_to_cpu(lrange.fc_lblk);
+ remaining = le32_to_cpu(lrange.fc_len);
trace_ext4_fc_replay(sb, EXT4_FC_TAG_DEL_RANGE,
- le32_to_cpu(lrange->fc_ino), cur, remaining);
+ le32_to_cpu(lrange.fc_ino), cur, remaining);
- inode = ext4_iget(sb, le32_to_cpu(lrange->fc_ino), EXT4_IGET_NORMAL);
+ inode = ext4_iget(sb, le32_to_cpu(lrange.fc_ino), EXT4_IGET_NORMAL);
if (IS_ERR(inode)) {
- jbd_debug(1, "Inode %d not found", le32_to_cpu(lrange->fc_ino));
+ jbd_debug(1, "Inode %d not found", le32_to_cpu(lrange.fc_ino));
return 0;
}
ret = ext4_fc_record_modified_inode(sb, inode->i_ino);
jbd_debug(1, "DEL_RANGE, inode %ld, lblk %d, len %d\n",
- inode->i_ino, le32_to_cpu(lrange->fc_lblk),
- le32_to_cpu(lrange->fc_len));
+ inode->i_ino, le32_to_cpu(lrange.fc_lblk),
+ le32_to_cpu(lrange.fc_len));
while (remaining > 0) {
map.m_lblk = cur;
map.m_len = remaining;
@@ -1808,8 +1813,8 @@
}
ret = ext4_punch_hole(inode,
- le32_to_cpu(lrange->fc_lblk) << sb->s_blocksize_bits,
- le32_to_cpu(lrange->fc_len) << sb->s_blocksize_bits);
+ le32_to_cpu(lrange.fc_lblk) << sb->s_blocksize_bits,
+ le32_to_cpu(lrange.fc_len) << sb->s_blocksize_bits);
if (ret)
jbd_debug(1, "ext4_punch_hole returned %d", ret);
ext4_ext_replay_shrink_inode(inode,
@@ -1925,11 +1930,11 @@
struct ext4_sb_info *sbi = EXT4_SB(sb);
struct ext4_fc_replay_state *state;
int ret = JBD2_FC_REPLAY_CONTINUE;
- struct ext4_fc_add_range *ext;
- struct ext4_fc_tl *tl;
- struct ext4_fc_tail *tail;
- __u8 *start, *end;
- struct ext4_fc_head *head;
+ struct ext4_fc_add_range ext;
+ struct ext4_fc_tl tl;
+ struct ext4_fc_tail tail;
+ __u8 *start, *end, *cur, *val;
+ struct ext4_fc_head head;
struct ext4_extent *ex;
state = &sbi->s_fc_replay_state;
@@ -1956,15 +1961,17 @@
}
state->fc_replay_expected_off++;
- fc_for_each_tl(start, end, tl) {
+ for (cur = start; cur < end; cur = cur + sizeof(tl) + le16_to_cpu(tl.fc_len)) {
+ memcpy(&tl, cur, sizeof(tl));
+ val = cur + sizeof(tl);
jbd_debug(3, "Scan phase, tag:%s, blk %lld\n",
- tag2str(le16_to_cpu(tl->fc_tag)), bh->b_blocknr);
- switch (le16_to_cpu(tl->fc_tag)) {
+ tag2str(le16_to_cpu(tl.fc_tag)), bh->b_blocknr);
+ switch (le16_to_cpu(tl.fc_tag)) {
case EXT4_FC_TAG_ADD_RANGE:
- ext = (struct ext4_fc_add_range *)ext4_fc_tag_val(tl);
- ex = (struct ext4_extent *)&ext->fc_ex;
+ memcpy(&ext, val, sizeof(ext));
+ ex = (struct ext4_extent *)&ext.fc_ex;
ret = ext4_fc_record_regions(sb,
- le32_to_cpu(ext->fc_ino),
+ le32_to_cpu(ext.fc_ino),
le32_to_cpu(ex->ee_block), ext4_ext_pblock(ex),
ext4_ext_get_actual_len(ex));
if (ret < 0)
@@ -1978,18 +1985,18 @@
case EXT4_FC_TAG_INODE:
case EXT4_FC_TAG_PAD:
state->fc_cur_tag++;
- state->fc_crc = ext4_chksum(sbi, state->fc_crc, tl,
- sizeof(*tl) + ext4_fc_tag_len(tl));
+ state->fc_crc = ext4_chksum(sbi, state->fc_crc, cur,
+ sizeof(tl) + le16_to_cpu(tl.fc_len));
break;
case EXT4_FC_TAG_TAIL:
state->fc_cur_tag++;
- tail = (struct ext4_fc_tail *)ext4_fc_tag_val(tl);
- state->fc_crc = ext4_chksum(sbi, state->fc_crc, tl,
- sizeof(*tl) +
+ memcpy(&tail, val, sizeof(tail));
+ state->fc_crc = ext4_chksum(sbi, state->fc_crc, cur,
+ sizeof(tl) +
offsetof(struct ext4_fc_tail,
fc_crc));
- if (le32_to_cpu(tail->fc_tid) == expected_tid &&
- le32_to_cpu(tail->fc_crc) == state->fc_crc) {
+ if (le32_to_cpu(tail.fc_tid) == expected_tid &&
+ le32_to_cpu(tail.fc_crc) == state->fc_crc) {
state->fc_replay_num_tags = state->fc_cur_tag;
state->fc_regions_valid =
state->fc_regions_used;
@@ -2000,19 +2007,19 @@
state->fc_crc = 0;
break;
case EXT4_FC_TAG_HEAD:
- head = (struct ext4_fc_head *)ext4_fc_tag_val(tl);
- if (le32_to_cpu(head->fc_features) &
+ memcpy(&head, val, sizeof(head));
+ if (le32_to_cpu(head.fc_features) &
~EXT4_FC_SUPPORTED_FEATURES) {
ret = -EOPNOTSUPP;
break;
}
- if (le32_to_cpu(head->fc_tid) != expected_tid) {
+ if (le32_to_cpu(head.fc_tid) != expected_tid) {
ret = JBD2_FC_REPLAY_STOP;
break;
}
state->fc_cur_tag++;
- state->fc_crc = ext4_chksum(sbi, state->fc_crc, tl,
- sizeof(*tl) + ext4_fc_tag_len(tl));
+ state->fc_crc = ext4_chksum(sbi, state->fc_crc, cur,
+ sizeof(tl) + le16_to_cpu(tl.fc_len));
break;
default:
ret = state->fc_replay_num_tags ?
@@ -2036,11 +2043,11 @@
{
struct super_block *sb = journal->j_private;
struct ext4_sb_info *sbi = EXT4_SB(sb);
- struct ext4_fc_tl *tl;
- __u8 *start, *end;
+ struct ext4_fc_tl tl;
+ __u8 *start, *end, *cur, *val;
int ret = JBD2_FC_REPLAY_CONTINUE;
struct ext4_fc_replay_state *state = &sbi->s_fc_replay_state;
- struct ext4_fc_tail *tail;
+ struct ext4_fc_tail tail;
if (pass == PASS_SCAN) {
state->fc_current_pass = PASS_SCAN;
@@ -2067,49 +2074,52 @@
start = (u8 *)bh->b_data;
end = (__u8 *)bh->b_data + journal->j_blocksize - 1;
- fc_for_each_tl(start, end, tl) {
+ for (cur = start; cur < end; cur = cur + sizeof(tl) + le16_to_cpu(tl.fc_len)) {
+ memcpy(&tl, cur, sizeof(tl));
+ val = cur + sizeof(tl);
+
if (state->fc_replay_num_tags == 0) {
ret = JBD2_FC_REPLAY_STOP;
ext4_fc_set_bitmaps_and_counters(sb);
break;
}
jbd_debug(3, "Replay phase, tag:%s\n",
- tag2str(le16_to_cpu(tl->fc_tag)));
+ tag2str(le16_to_cpu(tl.fc_tag)));
state->fc_replay_num_tags--;
- switch (le16_to_cpu(tl->fc_tag)) {
+ switch (le16_to_cpu(tl.fc_tag)) {
case EXT4_FC_TAG_LINK:
- ret = ext4_fc_replay_link(sb, tl);
+ ret = ext4_fc_replay_link(sb, &tl, val);
break;
case EXT4_FC_TAG_UNLINK:
- ret = ext4_fc_replay_unlink(sb, tl);
+ ret = ext4_fc_replay_unlink(sb, &tl, val);
break;
case EXT4_FC_TAG_ADD_RANGE:
- ret = ext4_fc_replay_add_range(sb, tl);
+ ret = ext4_fc_replay_add_range(sb, &tl, val);
break;
case EXT4_FC_TAG_CREAT:
- ret = ext4_fc_replay_create(sb, tl);
+ ret = ext4_fc_replay_create(sb, &tl, val);
break;
case EXT4_FC_TAG_DEL_RANGE:
- ret = ext4_fc_replay_del_range(sb, tl);
+ ret = ext4_fc_replay_del_range(sb, &tl, val);
break;
case EXT4_FC_TAG_INODE:
- ret = ext4_fc_replay_inode(sb, tl);
+ ret = ext4_fc_replay_inode(sb, &tl, val);
break;
case EXT4_FC_TAG_PAD:
trace_ext4_fc_replay(sb, EXT4_FC_TAG_PAD, 0,
- ext4_fc_tag_len(tl), 0);
+ le16_to_cpu(tl.fc_len), 0);
break;
case EXT4_FC_TAG_TAIL:
trace_ext4_fc_replay(sb, EXT4_FC_TAG_TAIL, 0,
- ext4_fc_tag_len(tl), 0);
- tail = (struct ext4_fc_tail *)ext4_fc_tag_val(tl);
- WARN_ON(le32_to_cpu(tail->fc_tid) != expected_tid);
+ le16_to_cpu(tl.fc_len), 0);
+ memcpy(&tail, val, sizeof(tail));
+ WARN_ON(le32_to_cpu(tail.fc_tid) != expected_tid);
break;
case EXT4_FC_TAG_HEAD:
break;
default:
- trace_ext4_fc_replay(sb, le16_to_cpu(tl->fc_tag), 0,
- ext4_fc_tag_len(tl), 0);
+ trace_ext4_fc_replay(sb, le16_to_cpu(tl.fc_tag), 0,
+ le16_to_cpu(tl.fc_len), 0);
ret = -ECANCELED;
break;
}
diff --git a/fs/ext4/fast_commit.h b/fs/ext4/fast_commit.h
index b77f70f..937c381 100644
--- a/fs/ext4/fast_commit.h
+++ b/fs/ext4/fast_commit.h
@@ -153,13 +153,6 @@
#define region_last(__region) (((__region)->lblk) + ((__region)->len) - 1)
#endif
-#define fc_for_each_tl(__start, __end, __tl) \
- for (tl = (struct ext4_fc_tl *)(__start); \
- (__u8 *)tl < (__u8 *)(__end); \
- tl = (struct ext4_fc_tl *)((__u8 *)tl + \
- sizeof(struct ext4_fc_tl) + \
- + le16_to_cpu(tl->fc_len)))
-
static inline const char *tag2str(__u16 tag)
{
switch (tag) {
@@ -186,16 +179,4 @@
}
}
-/* Get length of a particular tlv */
-static inline int ext4_fc_tag_len(struct ext4_fc_tl *tl)
-{
- return le16_to_cpu(tl->fc_len);
-}
-
-/* Get a pointer to "value" of a tlv */
-static inline __u8 *ext4_fc_tag_val(struct ext4_fc_tl *tl)
-{
- return (__u8 *)tl + sizeof(*tl);
-}
-
#endif /* __FAST_COMMIT_H__ */
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 81a17a3..9bab7fd 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -322,14 +322,16 @@
if (is_directory) {
count = ext4_used_dirs_count(sb, gdp) - 1;
ext4_used_dirs_set(sb, gdp, count);
- percpu_counter_dec(&sbi->s_dirs_counter);
+ if (percpu_counter_initialized(&sbi->s_dirs_counter))
+ percpu_counter_dec(&sbi->s_dirs_counter);
}
ext4_inode_bitmap_csum_set(sb, block_group, gdp, bitmap_bh,
EXT4_INODES_PER_GROUP(sb) / 8);
ext4_group_desc_csum_set(sb, block_group, gdp);
ext4_unlock_group(sb, block_group);
- percpu_counter_inc(&sbi->s_freeinodes_counter);
+ if (percpu_counter_initialized(&sbi->s_freeinodes_counter))
+ percpu_counter_inc(&sbi->s_freeinodes_counter);
if (sbi->s_log_groups_per_flex) {
struct flex_groups *fg;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 3239e66..c2c22c2 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3217,7 +3217,7 @@
*/
if (sbi->s_es->s_log_groups_per_flex >= 32) {
ext4_msg(sb, KERN_ERR, "too many log groups per flexible block group");
- goto err_freesgi;
+ goto err_freebuddy;
}
sbi->s_mb_prefetch = min_t(uint, 1 << sbi->s_es->s_log_groups_per_flex,
BLK_MAX_SEGMENT_SIZE >> (sb->s_blocksize_bits - 9));
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index afb9d05..a4af26d 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1376,7 +1376,8 @@
struct dx_hash_info *hinfo = &name->hinfo;
int len;
- if (!IS_CASEFOLDED(dir) || !dir->i_sb->s_encoding) {
+ if (!IS_CASEFOLDED(dir) || !dir->i_sb->s_encoding ||
+ (IS_ENCRYPTED(dir) && !fscrypt_has_encryption_key(dir))) {
cf_name->name = NULL;
return 0;
}
@@ -1427,7 +1428,8 @@
#endif
#ifdef CONFIG_UNICODE
- if (parent->i_sb->s_encoding && IS_CASEFOLDED(parent)) {
+ if (parent->i_sb->s_encoding && IS_CASEFOLDED(parent) &&
+ (!IS_ENCRYPTED(parent) || fscrypt_has_encryption_key(parent))) {
if (fname->cf_name.name) {
struct qstr cf = {.name = fname->cf_name.name,
.len = fname->cf_name.len};
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 7dc94f3..d29f6aa 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4462,14 +4462,20 @@
}
if (sb->s_blocksize != blocksize) {
+ /*
+ * bh must be released before kill_bdev(), otherwise
+ * it won't be freed and its page also. kill_bdev()
+ * is called by sb_set_blocksize().
+ */
+ brelse(bh);
/* Validate the filesystem blocksize */
if (!sb_set_blocksize(sb, blocksize)) {
ext4_msg(sb, KERN_ERR, "bad block size %d",
blocksize);
+ bh = NULL;
goto failed_mount;
}
- brelse(bh);
logical_sb_block = sb_block * EXT4_MIN_BLOCK_SIZE;
offset = do_div(logical_sb_block, blocksize);
bh = ext4_sb_bread_unmovable(sb, logical_sb_block);
@@ -5202,8 +5208,9 @@
kfree(get_qf_name(sb, sbi, i));
#endif
fscrypt_free_dummy_policy(&sbi->s_dummy_enc_policy);
- ext4_blkdev_remove(sbi);
+ /* ext4_blkdev_remove() calls kill_bdev(), release bh before it. */
brelse(bh);
+ ext4_blkdev_remove(sbi);
out_fail:
sb->s_fs_info = NULL;
kfree(sbi->s_blockgroup_lock);
diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index 6f825de..55fcab6 100644
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -315,7 +315,9 @@
#endif
EXT4_ATTR_FEATURE(metadata_csum_seed);
EXT4_ATTR_FEATURE(fast_commit);
+#if defined(CONFIG_UNICODE) && defined(CONFIG_FS_ENCRYPTION)
EXT4_ATTR_FEATURE(encrypted_casefold);
+#endif
static struct attribute *ext4_feat_attrs[] = {
ATTR_LIST(lazy_itable_init),
@@ -333,7 +335,9 @@
#endif
ATTR_LIST(metadata_csum_seed),
ATTR_LIST(fast_commit),
+#if defined(CONFIG_UNICODE) && defined(CONFIG_FS_ENCRYPTION)
ATTR_LIST(encrypted_casefold),
+#endif
NULL,
};
ATTRIBUTE_GROUPS(ext4_feat);
