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Diffstat (limited to 'fs/exfat/namei.c')
-rw-r--r--fs/exfat/namei.c63
1 files changed, 24 insertions, 39 deletions
diff --git a/fs/exfat/namei.c b/fs/exfat/namei.c
index a2659a8a68a1..5b0f35329d63 100644
--- a/fs/exfat/namei.c
+++ b/fs/exfat/namei.c
@@ -147,16 +147,10 @@ static int exfat_utf8_d_hash(const struct dentry *dentry, struct qstr *qstr)
return charlen;
/*
- * Convert to UTF-16: code points above U+FFFF are encoded as
- * surrogate pairs.
* exfat_toupper() works only for code points up to the U+FFFF.
*/
- if (u > 0xFFFF) {
- hash = partial_name_hash(exfat_high_surrogate(u), hash);
- hash = partial_name_hash(exfat_low_surrogate(u), hash);
- } else {
- hash = partial_name_hash(exfat_toupper(sb, u), hash);
- }
+ hash = partial_name_hash(u <= 0xFFFF ? exfat_toupper(sb, u) : u,
+ hash);
}
qstr->hash = end_name_hash(hash);
@@ -185,14 +179,9 @@ static int exfat_utf8_d_cmp(const struct dentry *dentry, unsigned int len,
if (u_a <= 0xFFFF && u_b <= 0xFFFF) {
if (exfat_toupper(sb, u_a) != exfat_toupper(sb, u_b))
return 1;
- } else if (u_a > 0xFFFF && u_b > 0xFFFF) {
- if (exfat_low_surrogate(u_a) !=
- exfat_low_surrogate(u_b) ||
- exfat_high_surrogate(u_a) !=
- exfat_high_surrogate(u_b))
- return 1;
} else {
- return 1;
+ if (u_a != u_b)
+ return 1;
}
}
@@ -611,8 +600,6 @@ static int exfat_find(struct inode *dir, struct qstr *qname,
int ret, dentry, num_entries, count;
struct exfat_chain cdir;
struct exfat_uni_name uni_name;
- struct exfat_dentry *ep, *ep2;
- struct exfat_entry_set_cache *es = NULL;
struct super_block *sb = dir->i_sb;
struct exfat_sb_info *sbi = EXFAT_SB(sb);
struct exfat_inode_info *ei = EXFAT_I(dir);
@@ -671,10 +658,14 @@ static int exfat_find(struct inode *dir, struct qstr *qname,
info->num_subdirs = count;
} else {
- es = exfat_get_dentry_set(sb, &cdir, dentry, ES_2_ENTRIES, &ep);
+ struct exfat_dentry *ep, *ep2;
+ struct exfat_entry_set_cache *es;
+
+ es = exfat_get_dentry_set(sb, &cdir, dentry, ES_2_ENTRIES);
if (!es)
return -EIO;
- ep2 = ep + 1;
+ ep = exfat_get_dentry_cached(es, 0);
+ ep2 = exfat_get_dentry_cached(es, 1);
info->type = exfat_get_entry_type(ep);
info->attr = le16_to_cpu(ep->dentry.file.attr);
@@ -692,7 +683,7 @@ static int exfat_find(struct inode *dir, struct qstr *qname,
exfat_fs_error(sb,
"non-zero size file starts with zero cluster (size : %llu, p_dir : %u, entry : 0x%08x)",
i_size_read(dir), ei->dir.dir, ei->entry);
- kfree(es);
+ exfat_free_dentry_set(es, false);
return -EIO;
}
@@ -700,18 +691,18 @@ static int exfat_find(struct inode *dir, struct qstr *qname,
ep->dentry.file.create_tz,
ep->dentry.file.create_time,
ep->dentry.file.create_date,
- ep->dentry.file.create_time_ms);
+ ep->dentry.file.create_time_cs);
exfat_get_entry_time(sbi, &info->mtime,
ep->dentry.file.modify_tz,
ep->dentry.file.modify_time,
ep->dentry.file.modify_date,
- ep->dentry.file.modify_time_ms);
+ ep->dentry.file.modify_time_cs);
exfat_get_entry_time(sbi, &info->atime,
ep->dentry.file.access_tz,
ep->dentry.file.access_time,
ep->dentry.file.access_date,
0);
- kfree(es);
+ exfat_free_dentry_set(es, false);
if (info->type == TYPE_DIR) {
exfat_chain_set(&cdir, info->start_clu,
@@ -778,8 +769,8 @@ static struct dentry *exfat_lookup(struct inode *dir, struct dentry *dentry,
if (d_unhashed(alias)) {
WARN_ON(alias->d_name.hash_len !=
dentry->d_name.hash_len);
- exfat_msg(sb, KERN_INFO,
- "rehashed a dentry(%p) in read lookup", alias);
+ exfat_info(sb, "rehashed a dentry(%p) in read lookup",
+ alias);
d_drop(dentry);
d_rehash(alias);
} else if (!S_ISDIR(i_mode)) {
@@ -824,7 +815,7 @@ static int exfat_unlink(struct inode *dir, struct dentry *dentry)
exfat_chain_dup(&cdir, &ei->dir);
entry = ei->entry;
if (ei->dir.dir == DIR_DELETED) {
- exfat_msg(sb, KERN_ERR, "abnormal access to deleted dentry");
+ exfat_err(sb, "abnormal access to deleted dentry");
err = -ENOENT;
goto unlock;
}
@@ -979,7 +970,7 @@ static int exfat_rmdir(struct inode *dir, struct dentry *dentry)
entry = ei->entry;
if (ei->dir.dir == DIR_DELETED) {
- exfat_msg(sb, KERN_ERR, "abnormal access to deleted dentry");
+ exfat_err(sb, "abnormal access to deleted dentry");
err = -ENOENT;
goto unlock;
}
@@ -991,9 +982,8 @@ static int exfat_rmdir(struct inode *dir, struct dentry *dentry)
err = exfat_check_dir_empty(sb, &clu_to_free);
if (err) {
if (err == -EIO)
- exfat_msg(sb, KERN_ERR,
- "failed to exfat_check_dir_empty : err(%d)",
- err);
+ exfat_err(sb, "failed to exfat_check_dir_empty : err(%d)",
+ err);
goto unlock;
}
@@ -1014,9 +1004,7 @@ static int exfat_rmdir(struct inode *dir, struct dentry *dentry)
err = exfat_remove_entries(dir, &cdir, entry, 0, num_entries);
if (err) {
- exfat_msg(sb, KERN_ERR,
- "failed to exfat_remove_entries : err(%d)",
- err);
+ exfat_err(sb, "failed to exfat_remove_entries : err(%d)", err);
goto unlock;
}
ei->dir.dir = DIR_DELETED;
@@ -1245,8 +1233,7 @@ static int __exfat_rename(struct inode *old_parent_inode,
return -EINVAL;
if (ei->dir.dir == DIR_DELETED) {
- exfat_msg(sb, KERN_ERR,
- "abnormal access to deleted source dentry");
+ exfat_err(sb, "abnormal access to deleted source dentry");
return -ENOENT;
}
@@ -1268,8 +1255,7 @@ static int __exfat_rename(struct inode *old_parent_inode,
new_ei = EXFAT_I(new_inode);
if (new_ei->dir.dir == DIR_DELETED) {
- exfat_msg(sb, KERN_ERR,
- "abnormal access to deleted target dentry");
+ exfat_err(sb, "abnormal access to deleted target dentry");
goto out;
}
@@ -1431,8 +1417,7 @@ static int exfat_rename(struct inode *old_dir, struct dentry *old_dentry,
if (S_ISDIR(new_inode->i_mode))
drop_nlink(new_inode);
} else {
- exfat_msg(sb, KERN_WARNING,
- "abnormal access to an inode dropped");
+ exfat_warn(sb, "abnormal access to an inode dropped");
WARN_ON(new_inode->i_nlink == 0);
}
new_inode->i_ctime = EXFAT_I(new_inode)->i_crtime =
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.