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Merge branch 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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Pull qstr constification updates from Al Viro:
 "Fairly self-contained bunch - surprising lot of places passes struct
  qstr * as an argument when const struct qstr * would suffice; it
  complicates analysis for no good reason.

  I'd prefer to feed that separately from the assorted fixes (those are
  in #for-linus and with somewhat trickier topology)"

* 'work.const-qstr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  qstr: constify instances in adfs
  qstr: constify instances in lustre
  qstr: constify instances in f2fs
  qstr: constify instances in ext2
  qstr: constify instances in vfat
  qstr: constify instances in procfs
  qstr: constify instances in fuse
  qstr constify instances in fs/dcache.c
  qstr: constify instances in nfs
  qstr: constify instances in ocfs2
  qstr: constify instances in autofs4
  qstr: constify instances in hfs
  qstr: constify instances in hfsplus
  qstr: constify instances in logfs
  qstr: constify dentry_init_security
This commit is contained in:
Linus Torvalds
2016-08-06 09:49:02 -04:00
parent ce804bf598 19a6d89de2
commit 835c92d43b
37 changed files with 95 additions and 100 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/staging/lustre/lustre/llite/statahead.c
+2 -2
View File
@@ -781,7 +781,7 @@ static int sa_args_init(struct inode *dir, struct inode *child,
struct ll_sa_entry *entry, struct md_enqueue_info **pmi,
struct ldlm_enqueue_info **pei)
{
struct qstr *qstr = &entry->se_qstr;
const struct qstr *qstr = &entry->se_qstr;
struct ll_inode_info *lli = ll_i2info(dir);
struct md_enqueue_info *minfo;
struct ldlm_enqueue_info *einfo;
@@ -1340,7 +1340,7 @@ enum {
static int is_first_dirent(struct inode *dir, struct dentry *dentry)
{
struct ll_dir_chain chain;
struct qstr *target = &dentry->d_name;
const struct qstr *target = &dentry->d_name;
struct page *page;
__u64 pos = 0;
int dot_de;
fs/adfs/dir.c
+2 -2
View File
@@ -101,7 +101,7 @@ out:
}
static int
adfs_match(struct qstr *name, struct object_info *obj)
adfs_match(const struct qstr *name, struct object_info *obj)
{
int i;
@@ -126,7 +126,7 @@ adfs_match(struct qstr *name, struct object_info *obj)
}
static int
adfs_dir_lookup_byname(struct inode *inode, struct qstr *name, struct object_info *obj)
adfs_dir_lookup_byname(struct inode *inode, const struct qstr *name, struct object_info *obj)
{
struct super_block *sb = inode->i_sb;
const struct adfs_dir_ops *ops = ADFS_SB(sb)->s_dir;
fs/autofs4/root.c
+4 -4
View File
@@ -159,7 +159,7 @@ static struct dentry *autofs4_lookup_active(struct dentry *dentry)
{
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
struct dentry *parent = dentry->d_parent;
struct qstr *name = &dentry->d_name;
const struct qstr *name = &dentry->d_name;
unsigned int len = name->len;
unsigned int hash = name->hash;
const unsigned char *str = name->name;
@@ -172,7 +172,7 @@ static struct dentry *autofs4_lookup_active(struct dentry *dentry)
list_for_each(p, head) {
struct autofs_info *ino;
struct dentry *active;
struct qstr *qstr;
const struct qstr *qstr;
ino = list_entry(p, struct autofs_info, active);
active = ino->dentry;
@@ -214,7 +214,7 @@ static struct dentry *autofs4_lookup_expiring(struct dentry *dentry,
{
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
struct dentry *parent = dentry->d_parent;
struct qstr *name = &dentry->d_name;
const struct qstr *name = &dentry->d_name;
unsigned int len = name->len;
unsigned int hash = name->hash;
const unsigned char *str = name->name;
@@ -227,7 +227,7 @@ static struct dentry *autofs4_lookup_expiring(struct dentry *dentry,
list_for_each(p, head) {
struct autofs_info *ino;
struct dentry *expiring;
struct qstr *qstr;
const struct qstr *qstr;
if (rcu_walk) {
spin_unlock(&sbi->lookup_lock);
fs/autofs4/waitq.c
+2 -2
View File
@@ -225,7 +225,7 @@ rename_retry:
}
static struct autofs_wait_queue *
autofs4_find_wait(struct autofs_sb_info *sbi, struct qstr *qstr)
autofs4_find_wait(struct autofs_sb_info *sbi, const struct qstr *qstr)
{
struct autofs_wait_queue *wq;
@@ -249,7 +249,7 @@ autofs4_find_wait(struct autofs_sb_info *sbi, struct qstr *qstr)
*/
static int validate_request(struct autofs_wait_queue **wait,
struct autofs_sb_info *sbi,
struct qstr *qstr,
const struct qstr *qstr,
struct dentry *dentry, enum autofs_notify notify)
{
struct autofs_wait_queue *wq;
fs/dcache.c
+2 -2
View File
@@ -2636,7 +2636,7 @@ EXPORT_SYMBOL(d_exact_alias);
* Parent inode i_mutex must be held over d_lookup and into this call (to
* keep renames and concurrent inserts, and readdir(2) away).
*/
void dentry_update_name_case(struct dentry *dentry, struct qstr *name)
void dentry_update_name_case(struct dentry *dentry, const struct qstr *name)
{
BUG_ON(!inode_is_locked(dentry->d_parent->d_inode));
BUG_ON(dentry->d_name.len != name->len); /* d_lookup gives this */
@@ -3038,7 +3038,7 @@ static int prepend(char **buffer, int *buflen, const char *str, int namelen)
* Data dependency barrier is needed to make sure that we see that terminating
* NUL. Alpha strikes again, film at 11...
*/
static int prepend_name(char **buffer, int *buflen, struct qstr *name)
static int prepend_name(char **buffer, int *buflen, const struct qstr *name)
{
const char *dname = ACCESS_ONCE(name->name);
u32 dlen = ACCESS_ONCE(name->len);
fs/ext2/dir.c
+3 -3
View File
@@ -358,8 +358,8 @@ ext2_readdir(struct file *file, struct dir_context *ctx)
* and the entry itself. Page is returned mapped and unlocked.
* Entry is guaranteed to be valid.
*/
struct ext2_dir_entry_2 *ext2_find_entry (struct inode * dir,
struct qstr *child, struct page ** res_page)
struct ext2_dir_entry_2 *ext2_find_entry (struct inode *dir,
const struct qstr *child, struct page **res_page)
{
const char *name = child->name;
int namelen = child->len;
@@ -435,7 +435,7 @@ struct ext2_dir_entry_2 * ext2_dotdot (struct inode *dir, struct page **p)
return de;
}
ino_t ext2_inode_by_name(struct inode *dir, struct qstr *child)
ino_t ext2_inode_by_name(struct inode *dir, const struct qstr *child)
{
ino_t res = 0;
struct ext2_dir_entry_2 *de;
fs/ext2/ext2.h
+2 -2
View File
@@ -757,9 +757,9 @@ extern void ext2_rsv_window_add(struct super_block *sb, struct ext2_reserve_wind
/* dir.c */
extern int ext2_add_link (struct dentry *, struct inode *);
extern ino_t ext2_inode_by_name(struct inode *, struct qstr *);
extern ino_t ext2_inode_by_name(struct inode *, const struct qstr *);
extern int ext2_make_empty(struct inode *, struct inode *);
extern struct ext2_dir_entry_2 * ext2_find_entry (struct inode *,struct qstr *, struct page **);
extern struct ext2_dir_entry_2 * ext2_find_entry (struct inode *,const struct qstr *, struct page **);
extern int ext2_delete_entry (struct ext2_dir_entry_2 *, struct page *);
extern int ext2_empty_dir (struct inode *);
extern struct ext2_dir_entry_2 * ext2_dotdot (struct inode *, struct page **);
fs/f2fs/dir.c
+2 -2
View File
@@ -219,7 +219,7 @@ static struct f2fs_dir_entry *find_in_level(struct inode *dir,
* Entry is guaranteed to be valid.
*/
struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir,
struct qstr *child, struct page **res_page)
const struct qstr *child, struct page **res_page)
{
unsigned long npages = dir_blocks(dir);
struct f2fs_dir_entry *de = NULL;
@@ -272,7 +272,7 @@ struct f2fs_dir_entry *f2fs_parent_dir(struct inode *dir, struct page **p)
return f2fs_find_entry(dir, &dotdot, p);
}
ino_t f2fs_inode_by_name(struct inode *dir, struct qstr *qstr,
ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
struct page **page)
{
ino_t res = 0;
fs/f2fs/f2fs.h
+2 -2
View File
@@ -1914,10 +1914,10 @@ struct page *init_inode_metadata(struct inode *, struct inode *,
void update_parent_metadata(struct inode *, struct inode *, unsigned int);
int room_for_filename(const void *, int, int);
void f2fs_drop_nlink(struct inode *, struct inode *);
struct f2fs_dir_entry *f2fs_find_entry(struct inode *, struct qstr *,
struct f2fs_dir_entry *f2fs_find_entry(struct inode *, const struct qstr *,
struct page **);
struct f2fs_dir_entry *f2fs_parent_dir(struct inode *, struct page **);
ino_t f2fs_inode_by_name(struct inode *, struct qstr *, struct page **);
ino_t f2fs_inode_by_name(struct inode *, const struct qstr *, struct page **);
void f2fs_set_link(struct inode *, struct f2fs_dir_entry *,
struct page *, struct inode *);
int update_dent_inode(struct inode *, struct inode *, const struct qstr *);
fs/fat/namei_vfat.c
+3 -3
View File
@@ -652,8 +652,8 @@ out_free:
return err;
}
static int vfat_add_entry(struct inode *dir, struct qstr *qname, int is_dir,
int cluster, struct timespec *ts,
static int vfat_add_entry(struct inode *dir, const struct qstr *qname,
int is_dir, int cluster, struct timespec *ts,
struct fat_slot_info *sinfo)
{
struct msdos_dir_slot *slots;
@@ -688,7 +688,7 @@ cleanup:
return err;
}
static int vfat_find(struct inode *dir, struct qstr *qname,
static int vfat_find(struct inode *dir, const struct qstr *qname,
struct fat_slot_info *sinfo)
{
unsigned int len = vfat_striptail_len(qname);
fs/fuse/dir.c
+2 -2
View File
@@ -146,7 +146,7 @@ static void fuse_invalidate_entry(struct dentry *entry)
}
static void fuse_lookup_init(struct fuse_conn *fc, struct fuse_args *args,
u64 nodeid, struct qstr *name,
u64 nodeid, const struct qstr *name,
struct fuse_entry_out *outarg)
{
memset(outarg, 0, sizeof(struct fuse_entry_out));
@@ -282,7 +282,7 @@ int fuse_valid_type(int m)
S_ISBLK(m) || S_ISFIFO(m) || S_ISSOCK(m);
}
int fuse_lookup_name(struct super_block *sb, u64 nodeid, struct qstr *name,
int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name,
struct fuse_entry_out *outarg, struct inode **inode)
{
struct fuse_conn *fc = get_fuse_conn_super(sb);
fs/fuse/fuse_i.h
+1 -1
View File
@@ -704,7 +704,7 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid,
int generation, struct fuse_attr *attr,
u64 attr_valid, u64 attr_version);
int fuse_lookup_name(struct super_block *sb, u64 nodeid, struct qstr *name,
int fuse_lookup_name(struct super_block *sb, u64 nodeid, const struct qstr *name,
struct fuse_entry_out *outarg, struct inode **inode);
/**
fs/fuse/inode.c
+2 -6
View File
@@ -673,13 +673,11 @@ static struct dentry *fuse_get_dentry(struct super_block *sb,
inode = ilookup5(sb, handle->nodeid, fuse_inode_eq, &handle->nodeid);
if (!inode) {
struct fuse_entry_out outarg;
struct qstr name;
const struct qstr name = QSTR_INIT(".", 1);
if (!fc->export_support)
goto out_err;
name.len = 1;
name.name = ".";
err = fuse_lookup_name(sb, handle->nodeid, &name, &outarg,
&inode);
if (err && err != -ENOENT)
@@ -775,14 +773,12 @@ static struct dentry *fuse_get_parent(struct dentry *child)
struct inode *inode;
struct dentry *parent;
struct fuse_entry_out outarg;
struct qstr name;
const struct qstr name = QSTR_INIT("..", 2);
int err;
if (!fc->export_support)
return ERR_PTR(-ESTALE);
name.len = 2;
name.name = "..";
err = fuse_lookup_name(child_inode->i_sb, get_node_id(child_inode),
&name, &outarg, &inode);
if (err) {
fs/hfs/catalog.c
+6 -6
View File
@@ -20,7 +20,7 @@
*
* Given the ID of the parent and the name build a search key.
*/
void hfs_cat_build_key(struct super_block *sb, btree_key *key, u32 parent, struct qstr *name)
void hfs_cat_build_key(struct super_block *sb, btree_key *key, u32 parent, const struct qstr *name)
{
key->cat.reserved = 0;
key->cat.ParID = cpu_to_be32(parent);
@@ -64,7 +64,7 @@ static int hfs_cat_build_record(hfs_cat_rec *rec, u32 cnid, struct inode *inode)
static int hfs_cat_build_thread(struct super_block *sb,
hfs_cat_rec *rec, int type,
u32 parentid, struct qstr *name)
u32 parentid, const struct qstr *name)
{
rec->type = type;
memset(rec->thread.reserved, 0, sizeof(rec->thread.reserved));
@@ -79,7 +79,7 @@ static int hfs_cat_build_thread(struct super_block *sb,
* Add a new file or directory to the catalog B-tree and
* return a (struct hfs_cat_entry) for it in '*result'.
*/
int hfs_cat_create(u32 cnid, struct inode *dir, struct qstr *str, struct inode *inode)
int hfs_cat_create(u32 cnid, struct inode *dir, const struct qstr *str, struct inode *inode)
{
struct hfs_find_data fd;
struct super_block *sb;
@@ -210,7 +210,7 @@ int hfs_cat_find_brec(struct super_block *sb, u32 cnid,
* Delete the indicated file or directory.
* The associated thread is also removed unless ('with_thread'==0).
*/
int hfs_cat_delete(u32 cnid, struct inode *dir, struct qstr *str)
int hfs_cat_delete(u32 cnid, struct inode *dir, const struct qstr *str)
{
struct super_block *sb;
struct hfs_find_data fd;
@@ -277,8 +277,8 @@ out:
* If the destination exists it is removed and a
* (struct hfs_cat_entry) for it is returned in '*result'.
*/
int hfs_cat_move(u32 cnid, struct inode *src_dir, struct qstr *src_name,
struct inode *dst_dir, struct qstr *dst_name)
int hfs_cat_move(u32 cnid, struct inode *src_dir, const struct qstr *src_name,
struct inode *dst_dir, const struct qstr *dst_name)
{
struct super_block *sb;
struct hfs_find_data src_fd, dst_fd;
fs/hfs/hfs_fs.h
+7 -7
View File
@@ -178,11 +178,11 @@ extern int hfs_clear_vbm_bits(struct super_block *, u16, u16);
extern int hfs_cat_keycmp(const btree_key *, const btree_key *);
struct hfs_find_data;
extern int hfs_cat_find_brec(struct super_block *, u32, struct hfs_find_data *);
extern int hfs_cat_create(u32, struct inode *, struct qstr *, struct inode *);
extern int hfs_cat_delete(u32, struct inode *, struct qstr *);
extern int hfs_cat_move(u32, struct inode *, struct qstr *,
struct inode *, struct qstr *);
extern void hfs_cat_build_key(struct super_block *, btree_key *, u32, struct qstr *);
extern int hfs_cat_create(u32, struct inode *, const struct qstr *, struct inode *);
extern int hfs_cat_delete(u32, struct inode *, const struct qstr *);
extern int hfs_cat_move(u32, struct inode *, const struct qstr *,
struct inode *, const struct qstr *);
extern void hfs_cat_build_key(struct super_block *, btree_key *, u32, const struct qstr *);
/* dir.c */
extern const struct file_operations hfs_dir_operations;
@@ -201,7 +201,7 @@ extern int hfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
extern const struct address_space_operations hfs_aops;
extern const struct address_space_operations hfs_btree_aops;
extern struct inode *hfs_new_inode(struct inode *, struct qstr *, umode_t);
extern struct inode *hfs_new_inode(struct inode *, const struct qstr *, umode_t);
extern void hfs_inode_write_fork(struct inode *, struct hfs_extent *, __be32 *, __be32 *);
extern int hfs_write_inode(struct inode *, struct writeback_control *);
extern int hfs_inode_setattr(struct dentry *, struct iattr *);
@@ -237,7 +237,7 @@ extern int hfs_compare_dentry(const struct dentry *parent, const struct dentry *
unsigned int len, const char *str, const struct qstr *name);
/* trans.c */
extern void hfs_asc2mac(struct super_block *, struct hfs_name *, struct qstr *);
extern void hfs_asc2mac(struct super_block *, struct hfs_name *, const struct qstr *);
extern int hfs_mac2asc(struct super_block *, char *, const struct hfs_name *);
/* super.c */
fs/hfs/inode.c
+1 -1
View File
@@ -177,7 +177,7 @@ const struct address_space_operations hfs_aops = {
/*
* hfs_new_inode
*/
struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, umode_t mode)
struct inode *hfs_new_inode(struct inode *dir, const struct qstr *name, umode_t mode)
{
struct super_block *sb = dir->i_sb;
struct inode *inode = new_inode(sb);
fs/hfs/trans.c
+1 -1
View File
@@ -94,7 +94,7 @@ out:
* This routine is a inverse to hfs_mac2triv().
* A ':' is replaced by a '/'.
*/
void hfs_asc2mac(struct super_block *sb, struct hfs_name *out, struct qstr *in)
void hfs_asc2mac(struct super_block *sb, struct hfs_name *out, const struct qstr *in)
{
struct nls_table *nls_disk = HFS_SB(sb)->nls_disk;
struct nls_table *nls_io = HFS_SB(sb)->nls_io;
fs/hfsplus/catalog.c
+6 -6
View File
@@ -40,7 +40,7 @@ int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
/* Generates key for catalog file/folders record. */
int hfsplus_cat_build_key(struct super_block *sb,
hfsplus_btree_key *key, u32 parent, struct qstr *str)
hfsplus_btree_key *key, u32 parent, const struct qstr *str)
{
int len, err;
@@ -174,7 +174,7 @@ static int hfsplus_cat_build_record(hfsplus_cat_entry *entry,
static int hfsplus_fill_cat_thread(struct super_block *sb,
hfsplus_cat_entry *entry, int type,
u32 parentid, struct qstr *str)
u32 parentid, const struct qstr *str)
{
int err;
@@ -250,7 +250,7 @@ static void hfsplus_subfolders_dec(struct inode *dir)
}
int hfsplus_create_cat(u32 cnid, struct inode *dir,
struct qstr *str, struct inode *inode)
const struct qstr *str, struct inode *inode)
{
struct super_block *sb = dir->i_sb;
struct hfs_find_data fd;
@@ -318,7 +318,7 @@ err2:
return err;
}
int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str)
int hfsplus_delete_cat(u32 cnid, struct inode *dir, const struct qstr *str)
{
struct super_block *sb = dir->i_sb;
struct hfs_find_data fd;
@@ -415,8 +415,8 @@ out:
}
int hfsplus_rename_cat(u32 cnid,
struct inode *src_dir, struct qstr *src_name,
struct inode *dst_dir, struct qstr *dst_name)
struct inode *src_dir, const struct qstr *src_name,
struct inode *dst_dir, const struct qstr *dst_name)
{
struct super_block *sb = src_dir->i_sb;
struct hfs_find_data src_fd, dst_fd;
fs/hfsplus/hfsplus_fs.h
+5 -5
View File
@@ -445,17 +445,17 @@ int hfsplus_cat_case_cmp_key(const hfsplus_btree_key *k1,
int hfsplus_cat_bin_cmp_key(const hfsplus_btree_key *k1,
const hfsplus_btree_key *k2);
int hfsplus_cat_build_key(struct super_block *sb, hfsplus_btree_key *key,
u32 parent, struct qstr *str);
u32 parent, const struct qstr *str);
void hfsplus_cat_build_key_with_cnid(struct super_block *sb,
hfsplus_btree_key *key, u32 parent);
void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms);
int hfsplus_find_cat(struct super_block *sb, u32 cnid,
struct hfs_find_data *fd);
int hfsplus_create_cat(u32 cnid, struct inode *dir, struct qstr *str,
int hfsplus_create_cat(u32 cnid, struct inode *dir, const struct qstr *str,
struct inode *inode);
int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str);
int hfsplus_rename_cat(u32 cnid, struct inode *src_dir, struct qstr *src_name,
struct inode *dst_dir, struct qstr *dst_name);
int hfsplus_delete_cat(u32 cnid, struct inode *dir, const struct qstr *str);
int hfsplus_rename_cat(u32 cnid, struct inode *src_dir, const struct qstr *src_name,
struct inode *dst_dir, const struct qstr *dst_name);
/* dir.c */
extern const struct inode_operations hfsplus_dir_inode_operations;
fs/logfs/dir.c
+2 -2
View File
@@ -156,7 +156,7 @@ static pgoff_t hash_index(u32 hash, int round)
static struct page *logfs_get_dd_page(struct inode *dir, struct dentry *dentry)
{
struct qstr *name = &dentry->d_name;
const struct qstr *name = &dentry->d_name;
struct page *page;
struct logfs_disk_dentry *dd;
u32 hash = logfs_hash_32(name->name, name->len, 0);
@@ -323,7 +323,7 @@ static int logfs_readdir(struct file *file, struct dir_context *ctx)
return 0;
}
static void logfs_set_name(struct logfs_disk_dentry *dd, struct qstr *name)
static void logfs_set_name(struct logfs_disk_dentry *dd, const struct qstr *name)
{
dd->namelen = cpu_to_be16(name->len);
memcpy(dd->name, name->name, name->len);

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