Lines Matching refs:dentry
472 dget(path->dentry); in path_get()
484 dput(path->dentry); in path_put()
571 return is_subdir(path->dentry, mnt->mnt_root); in path_connected()
622 path->dentry = NULL; in legitimize_path()
625 if (unlikely(!lockref_get_not_dead(&path->dentry->d_lockref))) { in legitimize_path()
626 path->dentry = NULL; in legitimize_path()
629 return !read_seqcount_retry(&path->dentry->d_seq, seq); in legitimize_path()
670 struct dentry *parent = nd->path.dentry; in unlazy_walk()
689 nd->path.dentry = NULL; in unlazy_walk()
711 static int unlazy_child(struct nameidata *nd, struct dentry *dentry, unsigned seq) in unlazy_child() argument
720 if (unlikely(!lockref_get_not_dead(&nd->path.dentry->d_lockref))) in unlazy_child()
730 if (unlikely(!lockref_get_not_dead(&dentry->d_lockref))) in unlazy_child()
732 if (unlikely(read_seqcount_retry(&dentry->d_seq, seq))) { in unlazy_child()
734 dput(dentry); in unlazy_child()
744 dput(dentry); in unlazy_child()
755 nd->path.dentry = NULL; in unlazy_child()
764 static inline int d_revalidate(struct dentry *dentry, unsigned int flags) in d_revalidate() argument
766 if (unlikely(dentry->d_flags & DCACHE_OP_REVALIDATE)) in d_revalidate()
767 return dentry->d_op->d_revalidate(dentry, flags); in d_revalidate()
784 struct dentry *dentry = nd->path.dentry; in complete_walk() local
797 if (likely(!(dentry->d_flags & DCACHE_OP_WEAK_REVALIDATE))) in complete_walk()
800 status = dentry->d_op->d_weak_revalidate(dentry, nd->flags); in complete_walk()
820 nd->root_seq = __read_seqcount_begin(&nd->root.dentry->d_seq); in set_root()
829 dput(path->dentry); in path_put_conditional()
838 dput(nd->path.dentry); in path_to_nameidata()
843 nd->path.dentry = path->dentry; in path_to_nameidata()
849 struct dentry *d; in nd_jump_root()
851 d = nd->path.dentry; in nd_jump_root()
860 nd->inode = nd->path.dentry->d_inode; in nd_jump_root()
876 nd->inode = nd->path.dentry->d_inode; in nd_jump_link()
935 audit_inode(nd->name, nd->stack[0].link.dentry, 0); in may_follow_link()
989 struct inode *inode = link->dentry->d_inode; in may_linkat()
1028 static int may_create_in_sticky(struct dentry * const dir, in may_create_in_sticky()
1051 struct dentry *dentry = last->link.dentry; in get_link() local
1065 error = security_inode_follow_link(dentry, inode, in get_link()
1073 const char * (*get)(struct dentry *, struct inode *, in get_link()
1081 res = get(dentry, inode, &last->done); in get_link()
1084 res = get(dentry, inode, &last->done); in get_link()
1116 struct dentry *mountpoint; in follow_up()
1127 dput(path->dentry); in follow_up()
1128 path->dentry = mountpoint; in follow_up()
1146 if (!path->dentry->d_op || !path->dentry->d_op->d_automount) in follow_automount()
1162 path->dentry->d_inode) in follow_automount()
1169 mnt = path->dentry->d_op->d_automount(path); in follow_automount()
1202 path->dentry = dget(mnt->mnt_root); in follow_automount()
1230 while (managed = READ_ONCE(path->dentry->d_flags), in follow_managed()
1236 BUG_ON(!path->dentry->d_op); in follow_managed()
1237 BUG_ON(!path->dentry->d_op->d_manage); in follow_managed()
1238 ret = path->dentry->d_op->d_manage(path, false); in follow_managed()
1247 dput(path->dentry); in follow_managed()
1251 path->dentry = dget(mounted->mnt_root); in follow_managed()
1291 dput(path->dentry); in follow_down_one()
1294 path->dentry = dget(mounted->mnt_root); in follow_down_one()
1303 return (path->dentry->d_flags & DCACHE_MANAGE_TRANSIT) ? in managed_dentry_rcu()
1304 path->dentry->d_op->d_manage(path, true) : 0; in managed_dentry_rcu()
1330 if (!d_mountpoint(path->dentry)) in __follow_mount_rcu()
1331 return !(path->dentry->d_flags & DCACHE_NEED_AUTOMOUNT); in __follow_mount_rcu()
1333 mounted = __lookup_mnt(path->mnt, path->dentry); in __follow_mount_rcu()
1337 path->dentry = mounted->mnt.mnt_root; in __follow_mount_rcu()
1339 *seqp = read_seqcount_begin(&path->dentry->d_seq); in __follow_mount_rcu()
1345 *inode = path->dentry->d_inode; in __follow_mount_rcu()
1348 !(path->dentry->d_flags & DCACHE_NEED_AUTOMOUNT); in __follow_mount_rcu()
1358 if (nd->path.dentry != nd->path.mnt->mnt_root) { in follow_dotdot_rcu()
1359 struct dentry *old = nd->path.dentry; in follow_dotdot_rcu()
1360 struct dentry *parent = old->d_parent; in follow_dotdot_rcu()
1367 nd->path.dentry = parent; in follow_dotdot_rcu()
1375 struct dentry *mountpoint = mnt->mnt_mountpoint; in follow_dotdot_rcu()
1383 nd->path.dentry = mountpoint; in follow_dotdot_rcu()
1389 while (unlikely(d_mountpoint(nd->path.dentry))) { in follow_dotdot_rcu()
1391 mounted = __lookup_mnt(nd->path.mnt, nd->path.dentry); in follow_dotdot_rcu()
1397 nd->path.dentry = mounted->mnt.mnt_root; in follow_dotdot_rcu()
1398 inode = nd->path.dentry->d_inode; in follow_dotdot_rcu()
1399 nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq); in follow_dotdot_rcu()
1415 while (managed = READ_ONCE(path->dentry->d_flags), in follow_down()
1428 BUG_ON(!path->dentry->d_op); in follow_down()
1429 BUG_ON(!path->dentry->d_op->d_manage); in follow_down()
1430 ret = path->dentry->d_op->d_manage(path, false); in follow_down()
1440 dput(path->dentry); in follow_down()
1443 path->dentry = dget(mounted->mnt_root); in follow_down()
1459 while (d_mountpoint(path->dentry)) { in follow_mount()
1463 dput(path->dentry); in follow_mount()
1466 path->dentry = dget(mounted->mnt_root); in follow_mount()
1472 struct dentry *old = path->dentry; in path_parent_directory()
1474 path->dentry = dget_parent(path->dentry); in path_parent_directory()
1486 if (nd->path.dentry != nd->path.mnt->mnt_root) { in follow_dotdot()
1496 nd->inode = nd->path.dentry->d_inode; in follow_dotdot()
1504 static struct dentry *lookup_dcache(const struct qstr *name, in lookup_dcache()
1505 struct dentry *dir, in lookup_dcache()
1508 struct dentry *dentry = d_lookup(dir, name); in lookup_dcache() local
1509 if (dentry) { in lookup_dcache()
1510 int error = d_revalidate(dentry, flags); in lookup_dcache()
1513 d_invalidate(dentry); in lookup_dcache()
1514 dput(dentry); in lookup_dcache()
1518 return dentry; in lookup_dcache()
1528 static struct dentry *__lookup_hash(const struct qstr *name, in __lookup_hash()
1529 struct dentry *base, unsigned int flags) in __lookup_hash()
1531 struct dentry *dentry = lookup_dcache(name, base, flags); in __lookup_hash() local
1532 struct dentry *old; in __lookup_hash()
1535 if (dentry) in __lookup_hash()
1536 return dentry; in __lookup_hash()
1542 dentry = d_alloc(base, name); in __lookup_hash()
1543 if (unlikely(!dentry)) in __lookup_hash()
1546 old = dir->i_op->lookup(dir, dentry, flags); in __lookup_hash()
1548 dput(dentry); in __lookup_hash()
1549 dentry = old; in __lookup_hash()
1551 return dentry; in __lookup_hash()
1559 struct dentry *dentry, *parent = nd->path.dentry; in lookup_fast() local
1571 dentry = __d_lookup_rcu(parent, &nd->last, &seq); in lookup_fast()
1572 if (unlikely(!dentry)) { in lookup_fast()
1582 *inode = d_backing_inode(dentry); in lookup_fast()
1583 negative = d_is_negative(dentry); in lookup_fast()
1584 if (unlikely(read_seqcount_retry(&dentry->d_seq, seq))) in lookup_fast()
1598 status = d_revalidate(dentry, nd->flags); in lookup_fast()
1607 path->dentry = dentry; in lookup_fast()
1611 if (unlazy_child(nd, dentry, seq)) in lookup_fast()
1615 status = d_revalidate(dentry, nd->flags); in lookup_fast()
1617 dentry = __d_lookup(parent, &nd->last); in lookup_fast()
1618 if (unlikely(!dentry)) in lookup_fast()
1620 status = d_revalidate(dentry, nd->flags); in lookup_fast()
1624 d_invalidate(dentry); in lookup_fast()
1625 dput(dentry); in lookup_fast()
1628 if (unlikely(d_is_negative(dentry))) { in lookup_fast()
1629 dput(dentry); in lookup_fast()
1634 path->dentry = dentry; in lookup_fast()
1637 *inode = d_backing_inode(path->dentry); in lookup_fast()
1642 static struct dentry *__lookup_slow(const struct qstr *name, in __lookup_slow()
1643 struct dentry *dir, in __lookup_slow()
1646 struct dentry *dentry, *old; in __lookup_slow() local
1654 dentry = d_alloc_parallel(dir, name, &wq); in __lookup_slow()
1655 if (IS_ERR(dentry)) in __lookup_slow()
1656 return dentry; in __lookup_slow()
1657 if (unlikely(!d_in_lookup(dentry))) { in __lookup_slow()
1659 int error = d_revalidate(dentry, flags); in __lookup_slow()
1662 d_invalidate(dentry); in __lookup_slow()
1663 dput(dentry); in __lookup_slow()
1666 dput(dentry); in __lookup_slow()
1667 dentry = ERR_PTR(error); in __lookup_slow()
1671 old = inode->i_op->lookup(inode, dentry, flags); in __lookup_slow()
1672 d_lookup_done(dentry); in __lookup_slow()
1674 dput(dentry); in __lookup_slow()
1675 dentry = old; in __lookup_slow()
1678 return dentry; in __lookup_slow()
1681 static struct dentry *lookup_slow(const struct qstr *name, in lookup_slow()
1682 struct dentry *dir, in lookup_slow()
1686 struct dentry *res; in lookup_slow()
1739 nd->path.dentry = NULL; in pick_link()
1773 if (likely(!d_is_symlink(path->dentry)) || in step_into()
1783 if (read_seqcount_retry(&path->dentry->d_seq, seq)) in step_into()
1810 path.dentry = lookup_slow(&nd->last, nd->path.dentry, in walk_component()
1812 if (IS_ERR(path.dentry)) in walk_component()
1813 return PTR_ERR(path.dentry); in walk_component()
1820 if (unlikely(d_is_negative(path.dentry))) { in walk_component()
1826 inode = d_backing_inode(path.dentry); in walk_component()
2088 hash_len = hash_name(nd->path.dentry, name); in link_path_walk()
2102 struct dentry *parent = nd->path.dentry; in link_path_walk()
2161 if (unlikely(!d_can_lookup(nd->path.dentry))) { in link_path_walk()
2185 struct dentry *root = nd->root.dentry; in path_init()
2192 nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq); in path_init()
2203 nd->path.dentry = NULL; in path_init()
2219 nd->inode = nd->path.dentry->d_inode; in path_init()
2220 nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq); in path_init()
2224 nd->inode = nd->path.dentry->d_inode; in path_init()
2230 struct dentry *dentry; in path_init() local
2235 dentry = f.file->f_path.dentry; in path_init()
2237 if (*s && unlikely(!d_can_lookup(dentry))) { in path_init()
2244 nd->inode = nd->path.dentry->d_inode; in path_init()
2245 nd->seq = read_seqcount_begin(&nd->path.dentry->d_seq); in path_init()
2248 nd->inode = nd->path.dentry->d_inode; in path_init()
2292 dget(path.dentry); in handle_lookup_down()
2296 inode = d_backing_inode(path.dentry); in handle_lookup_down()
2325 if (!d_can_lookup(nd->path.dentry)) in path_lookupat()
2330 nd->path.dentry = NULL; in path_lookupat()
2355 audit_inode(name, path->dentry, flags & LOOKUP_PARENT); in filename_lookup()
2372 nd->path.dentry = NULL; in path_parentat()
2396 audit_inode(name, parent->dentry, LOOKUP_PARENT); in filename_parentat()
2406 struct dentry *kern_path_locked(const char *name, struct path *path) in kern_path_locked()
2409 struct dentry *d; in kern_path_locked()
2422 inode_lock_nested(path->dentry->d_inode, I_MUTEX_PARENT); in kern_path_locked()
2423 d = __lookup_hash(&last, path->dentry, 0); in kern_path_locked()
2425 inode_unlock(path->dentry->d_inode); in kern_path_locked()
2447 int vfs_path_lookup(struct dentry *dentry, struct vfsmount *mnt, in vfs_path_lookup() argument
2451 struct path root = {.mnt = mnt, .dentry = dentry}; in vfs_path_lookup()
2458 static int lookup_one_len_common(const char *name, struct dentry *base, in lookup_one_len_common()
2504 struct dentry *try_lookup_one_len(const char *name, struct dentry *base, int len) in try_lookup_one_len()
2530 struct dentry *lookup_one_len(const char *name, struct dentry *base, int len) in lookup_one_len()
2532 struct dentry *dentry; in lookup_one_len() local
2542 dentry = lookup_dcache(&this, base, 0); in lookup_one_len()
2543 return dentry ? dentry : __lookup_slow(&this, base, 0); in lookup_one_len()
2559 struct dentry *lookup_one_len_unlocked(const char *name, in lookup_one_len_unlocked()
2560 struct dentry *base, int len) in lookup_one_len_unlocked()
2564 struct dentry *ret; in lookup_one_len_unlocked()
2583 struct dentry *child, *parent; in path_pts()
2591 parent = path->dentry; in path_pts()
2598 path->dentry = child; in path_pts()
2640 struct dentry *dir = nd->path.dentry; in mountpoint_last()
2655 path.dentry = dget(nd->path.dentry); in mountpoint_last()
2657 path.dentry = d_lookup(dir, &nd->last); in mountpoint_last()
2658 if (!path.dentry) { in mountpoint_last()
2665 path.dentry = lookup_slow(&nd->last, dir, in mountpoint_last()
2667 if (IS_ERR(path.dentry)) in mountpoint_last()
2668 return PTR_ERR(path.dentry); in mountpoint_last()
2671 if (d_is_negative(path.dentry)) { in mountpoint_last()
2672 dput(path.dentry); in mountpoint_last()
2676 return step_into(nd, &path, 0, d_backing_inode(path.dentry), 0); in mountpoint_last()
2701 nd->path.dentry = NULL; in path_mountpoint()
2723 audit_inode(name, path->dentry, 0); in filename_mountpoint()
2790 static int may_delete(struct inode *dir, struct dentry *victim, bool isdir) in may_delete()
2839 static inline int may_create(struct inode *dir, struct dentry *child) in may_create()
2857 struct dentry *lock_rename(struct dentry *p1, struct dentry *p2) in lock_rename()
2859 struct dentry *p; in lock_rename()
2888 void unlock_rename(struct dentry *p1, struct dentry *p2) in unlock_rename()
2898 int vfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, in vfs_create() argument
2901 int error = may_create(dir, dentry); in vfs_create()
2909 error = security_inode_create(dir, dentry, mode); in vfs_create()
2912 error = dir->i_op->create(dir, dentry, mode, want_excl); in vfs_create()
2914 fsnotify_create(dir, dentry); in vfs_create()
2919 int vfs_mkobj(struct dentry *dentry, umode_t mode, in vfs_mkobj() argument
2920 int (*f)(struct dentry *, umode_t, void *), in vfs_mkobj() argument
2923 struct inode *dir = dentry->d_parent->d_inode; in vfs_mkobj()
2924 int error = may_create(dir, dentry); in vfs_mkobj()
2930 error = security_inode_create(dir, dentry, mode); in vfs_mkobj()
2933 error = f(dentry, mode, arg); in vfs_mkobj()
2935 fsnotify_create(dir, dentry); in vfs_mkobj()
2948 struct dentry *dentry = path->dentry; in may_open() local
2949 struct inode *inode = dentry->d_inode; in may_open()
2997 struct inode *inode = path->dentry->d_inode; in handle_truncate()
3008 error = do_truncate(path->dentry, 0, in handle_truncate()
3023 static int may_o_create(const struct path *dir, struct dentry *dentry, umode_t mode) in may_o_create() argument
3026 int error = security_path_mknod(dir, dentry, mode, 0); in may_o_create()
3030 s_user_ns = dir->dentry->d_sb->s_user_ns; in may_o_create()
3035 error = inode_permission(dir->dentry->d_inode, MAY_WRITE | MAY_EXEC); in may_o_create()
3039 return security_inode_create(dir->dentry->d_inode, dentry, mode); in may_o_create()
3055 static int atomic_open(struct nameidata *nd, struct dentry *dentry, in atomic_open() argument
3060 struct dentry *const DENTRY_NOT_SET = (void *) -1UL; in atomic_open()
3061 struct inode *dir = nd->path.dentry->d_inode; in atomic_open()
3070 file->f_path.dentry = DENTRY_NOT_SET; in atomic_open()
3072 error = dir->i_op->atomic_open(dir, dentry, file, in atomic_open()
3074 d_lookup_done(dentry); in atomic_open()
3084 fsnotify_create(dir, dentry); in atomic_open()
3090 } else if (WARN_ON(file->f_path.dentry == DENTRY_NOT_SET)) { in atomic_open()
3093 if (file->f_path.dentry) { in atomic_open()
3094 dput(dentry); in atomic_open()
3095 dentry = file->f_path.dentry; in atomic_open()
3098 fsnotify_create(dir, dentry); in atomic_open()
3099 if (unlikely(d_is_negative(dentry))) { in atomic_open()
3102 path->dentry = dentry; in atomic_open()
3108 dput(dentry); in atomic_open()
3132 struct dentry *dir = nd->path.dentry; in lookup_open()
3135 struct dentry *dentry; in lookup_open() local
3144 dentry = d_lookup(dir, &nd->last); in lookup_open()
3146 if (!dentry) { in lookup_open()
3147 dentry = d_alloc_parallel(dir, &nd->last, &wq); in lookup_open()
3148 if (IS_ERR(dentry)) in lookup_open()
3149 return PTR_ERR(dentry); in lookup_open()
3151 if (d_in_lookup(dentry)) in lookup_open()
3154 error = d_revalidate(dentry, nd->flags); in lookup_open()
3159 d_invalidate(dentry); in lookup_open()
3160 dput(dentry); in lookup_open()
3161 dentry = NULL; in lookup_open()
3163 if (dentry->d_inode) { in lookup_open()
3187 create_error = may_o_create(&nd->path, dentry, mode); in lookup_open()
3204 error = atomic_open(nd, dentry, path, file, op, open_flag, in lookup_open()
3212 if (d_in_lookup(dentry)) { in lookup_open()
3213 struct dentry *res = dir_inode->i_op->lookup(dir_inode, dentry, in lookup_open()
3215 d_lookup_done(dentry); in lookup_open()
3221 dput(dentry); in lookup_open()
3222 dentry = res; in lookup_open()
3227 if (!dentry->d_inode && (open_flag & O_CREAT)) { in lookup_open()
3229 audit_inode_child(dir_inode, dentry, AUDIT_TYPE_CHILD_CREATE); in lookup_open()
3234 error = dir_inode->i_op->create(dir_inode, dentry, mode, in lookup_open()
3238 fsnotify_create(dir_inode, dentry); in lookup_open()
3240 if (unlikely(create_error) && !dentry->d_inode) { in lookup_open()
3245 path->dentry = dentry; in lookup_open()
3250 dput(dentry); in lookup_open()
3260 struct dentry *dir = nd->path.dentry; in do_last()
3338 audit_inode(nd->name, file->f_path.dentry, 0); in do_last()
3365 if (unlikely(d_is_negative(path.dentry))) { in do_last()
3373 audit_inode(nd->name, path.dentry, 0); in do_last()
3381 inode = d_backing_inode(path.dentry); in do_last()
3391 audit_inode(nd->name, nd->path.dentry, 0); in do_last()
3394 if (d_is_dir(nd->path.dentry)) in do_last()
3397 d_backing_inode(nd->path.dentry)); in do_last()
3402 if ((nd->flags & LOOKUP_DIRECTORY) && !d_can_lookup(nd->path.dentry)) in do_last()
3404 if (!d_is_reg(nd->path.dentry)) in do_last()
3435 struct dentry *vfs_tmpfile(struct dentry *dentry, umode_t mode, int open_flag) in vfs_tmpfile() argument
3437 struct dentry *child = NULL; in vfs_tmpfile()
3438 struct inode *dir = dentry->d_inode; in vfs_tmpfile()
3450 child = d_alloc(dentry, &slash_name); in vfs_tmpfile()
3477 struct dentry *child; in do_tmpfile()
3485 child = vfs_tmpfile(path.dentry, op->mode, op->open_flag); in do_tmpfile()
3489 dput(path.dentry); in do_tmpfile()
3490 path.dentry = child; in do_tmpfile()
3510 audit_inode(nd->name, path.dentry, 0); in do_o_path()
3573 struct file *do_file_open_root(struct dentry *dentry, struct vfsmount *mnt, in do_file_open_root() argument
3582 nd.root.dentry = dentry; in do_file_open_root()
3584 if (d_is_symlink(dentry) && op->intent & LOOKUP_OPEN) in do_file_open_root()
3602 static struct dentry *filename_create(int dfd, struct filename *name, in filename_create()
3605 struct dentry *dentry = ERR_PTR(-EEXIST); in filename_create() local
3635 inode_lock_nested(path->dentry->d_inode, I_MUTEX_PARENT); in filename_create()
3636 dentry = __lookup_hash(&last, path->dentry, lookup_flags); in filename_create()
3637 if (IS_ERR(dentry)) in filename_create()
3641 if (d_is_positive(dentry)) in filename_create()
3659 return dentry; in filename_create()
3661 dput(dentry); in filename_create()
3662 dentry = ERR_PTR(error); in filename_create()
3664 inode_unlock(path->dentry->d_inode); in filename_create()
3670 return dentry; in filename_create()
3673 struct dentry *kern_path_create(int dfd, const char *pathname, in kern_path_create()
3681 void done_path_create(struct path *path, struct dentry *dentry) in done_path_create() argument
3683 dput(dentry); in done_path_create()
3684 inode_unlock(path->dentry->d_inode); in done_path_create()
3690 inline struct dentry *user_path_create(int dfd, const char __user *pathname, in user_path_create()
3697 int vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev) in vfs_mknod() argument
3699 int error = may_create(dir, dentry); in vfs_mknod()
3705 !ns_capable(dentry->d_sb->s_user_ns, CAP_MKNOD)) in vfs_mknod()
3715 error = security_inode_mknod(dir, dentry, mode, dev); in vfs_mknod()
3719 error = dir->i_op->mknod(dir, dentry, mode, dev); in vfs_mknod()
3721 fsnotify_create(dir, dentry); in vfs_mknod()
3746 struct dentry *dentry; in do_mknodat() local
3755 dentry = user_path_create(dfd, filename, &path, lookup_flags); in do_mknodat()
3756 if (IS_ERR(dentry)) in do_mknodat()
3757 return PTR_ERR(dentry); in do_mknodat()
3759 if (!IS_POSIXACL(path.dentry->d_inode)) in do_mknodat()
3761 error = security_path_mknod(&path, dentry, mode, dev); in do_mknodat()
3766 error = vfs_create(path.dentry->d_inode,dentry,mode,true); in do_mknodat()
3768 ima_post_path_mknod(dentry); in do_mknodat()
3771 error = vfs_mknod(path.dentry->d_inode,dentry,mode, in do_mknodat()
3775 error = vfs_mknod(path.dentry->d_inode,dentry,mode,0); in do_mknodat()
3779 done_path_create(&path, dentry); in do_mknodat()
3798 int vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) in vfs_mkdir() argument
3800 int error = may_create(dir, dentry); in vfs_mkdir()
3810 error = security_inode_mkdir(dir, dentry, mode); in vfs_mkdir()
3817 error = dir->i_op->mkdir(dir, dentry, mode); in vfs_mkdir()
3819 fsnotify_mkdir(dir, dentry); in vfs_mkdir()
3826 struct dentry *dentry; in do_mkdirat() local
3832 dentry = user_path_create(dfd, pathname, &path, lookup_flags); in do_mkdirat()
3833 if (IS_ERR(dentry)) in do_mkdirat()
3834 return PTR_ERR(dentry); in do_mkdirat()
3836 if (!IS_POSIXACL(path.dentry->d_inode)) in do_mkdirat()
3838 error = security_path_mkdir(&path, dentry, mode); in do_mkdirat()
3840 error = vfs_mkdir(path.dentry->d_inode, dentry, mode); in do_mkdirat()
3841 done_path_create(&path, dentry); in do_mkdirat()
3859 int vfs_rmdir(struct inode *dir, struct dentry *dentry) in vfs_rmdir() argument
3861 int error = may_delete(dir, dentry, 1); in vfs_rmdir()
3869 dget(dentry); in vfs_rmdir()
3870 inode_lock(dentry->d_inode); in vfs_rmdir()
3873 if (is_local_mountpoint(dentry)) in vfs_rmdir()
3876 error = security_inode_rmdir(dir, dentry); in vfs_rmdir()
3880 error = dir->i_op->rmdir(dir, dentry); in vfs_rmdir()
3884 shrink_dcache_parent(dentry); in vfs_rmdir()
3885 dentry->d_inode->i_flags |= S_DEAD; in vfs_rmdir()
3886 dont_mount(dentry); in vfs_rmdir()
3887 detach_mounts(dentry); in vfs_rmdir()
3890 inode_unlock(dentry->d_inode); in vfs_rmdir()
3891 dput(dentry); in vfs_rmdir()
3893 d_delete(dentry); in vfs_rmdir()
3902 struct dentry *dentry; in do_rmdir() local
3929 inode_lock_nested(path.dentry->d_inode, I_MUTEX_PARENT); in do_rmdir()
3930 dentry = __lookup_hash(&last, path.dentry, lookup_flags); in do_rmdir()
3931 error = PTR_ERR(dentry); in do_rmdir()
3932 if (IS_ERR(dentry)) in do_rmdir()
3934 if (!dentry->d_inode) { in do_rmdir()
3938 error = security_path_rmdir(&path, dentry); in do_rmdir()
3941 error = vfs_rmdir(path.dentry->d_inode, dentry); in do_rmdir()
3943 dput(dentry); in do_rmdir()
3945 inode_unlock(path.dentry->d_inode); in do_rmdir()
3980 int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode **delegated_inode) in vfs_unlink() argument
3982 struct inode *target = dentry->d_inode; in vfs_unlink()
3983 int error = may_delete(dir, dentry, 0); in vfs_unlink()
3992 if (is_local_mountpoint(dentry)) in vfs_unlink()
3995 error = security_inode_unlink(dir, dentry); in vfs_unlink()
4000 error = dir->i_op->unlink(dir, dentry); in vfs_unlink()
4002 dont_mount(dentry); in vfs_unlink()
4003 detach_mounts(dentry); in vfs_unlink()
4011 if (!error && !(dentry->d_flags & DCACHE_NFSFS_RENAMED)) { in vfs_unlink()
4013 d_delete(dentry); in vfs_unlink()
4029 struct dentry *dentry; in do_unlinkat() local
4049 inode_lock_nested(path.dentry->d_inode, I_MUTEX_PARENT); in do_unlinkat()
4050 dentry = __lookup_hash(&last, path.dentry, lookup_flags); in do_unlinkat()
4051 error = PTR_ERR(dentry); in do_unlinkat()
4052 if (!IS_ERR(dentry)) { in do_unlinkat()
4056 inode = dentry->d_inode; in do_unlinkat()
4057 if (d_is_negative(dentry)) in do_unlinkat()
4060 error = security_path_unlink(&path, dentry); in do_unlinkat()
4063 error = vfs_unlink(path.dentry->d_inode, dentry, &delegated_inode); in do_unlinkat()
4065 dput(dentry); in do_unlinkat()
4067 inode_unlock(path.dentry->d_inode); in do_unlinkat()
4088 if (d_is_negative(dentry)) in do_unlinkat()
4090 else if (d_is_dir(dentry)) in do_unlinkat()
4113 int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname) in vfs_symlink() argument
4115 int error = may_create(dir, dentry); in vfs_symlink()
4123 error = security_inode_symlink(dir, dentry, oldname); in vfs_symlink()
4127 error = dir->i_op->symlink(dir, dentry, oldname); in vfs_symlink()
4129 fsnotify_create(dir, dentry); in vfs_symlink()
4139 struct dentry *dentry; in do_symlinkat() local
4147 dentry = user_path_create(newdfd, newname, &path, lookup_flags); in do_symlinkat()
4148 error = PTR_ERR(dentry); in do_symlinkat()
4149 if (IS_ERR(dentry)) in do_symlinkat()
4152 error = security_path_symlink(&path, dentry, from->name); in do_symlinkat()
4154 error = vfs_symlink(path.dentry->d_inode, dentry, from->name); in do_symlinkat()
4155 done_path_create(&path, dentry); in do_symlinkat()
4195 int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry, struct inode … in vfs_link()
4268 struct dentry *new_dentry; in do_linkat()
4306 error = security_path_link(old_path.dentry, &new_path, new_dentry); in do_linkat()
4309 error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry, &delegated_inode); in do_linkat()
4391 int vfs_rename(struct inode *old_dir, struct dentry *old_dentry, in vfs_rename()
4392 struct inode *new_dir, struct dentry *new_dentry, in vfs_rename()
4519 struct dentry *old_dentry, *new_dentry; in do_renameat2()
4520 struct dentry *trap; in do_renameat2()
4577 trap = lock_rename(new_path.dentry, old_path.dentry); in do_renameat2()
4579 old_dentry = __lookup_hash(&old_last, old_path.dentry, lookup_flags); in do_renameat2()
4587 new_dentry = __lookup_hash(&new_last, new_path.dentry, lookup_flags | target_flags); in do_renameat2()
4627 error = vfs_rename(old_path.dentry->d_inode, old_dentry, in do_renameat2()
4628 new_path.dentry->d_inode, new_dentry, in do_renameat2()
4635 unlock_rename(new_path.dentry, old_path.dentry); in do_renameat2()
4676 int vfs_whiteout(struct inode *dir, struct dentry *dentry) in vfs_whiteout() argument
4678 int error = may_create(dir, dentry); in vfs_whiteout()
4685 return dir->i_op->mknod(dir, dentry, in vfs_whiteout()
4715 int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen) in vfs_readlink() argument
4717 struct inode *inode = d_inode(dentry); in vfs_readlink()
4724 return inode->i_op->readlink(dentry, buffer, buflen); in vfs_readlink()
4726 if (!d_is_symlink(dentry)) in vfs_readlink()
4736 link = inode->i_op->get_link(dentry, inode, &done); in vfs_readlink()
4757 const char *vfs_get_link(struct dentry *dentry, struct delayed_call *done) in vfs_get_link() argument
4760 struct inode *inode = d_inode(dentry); in vfs_get_link()
4762 if (d_is_symlink(dentry)) { in vfs_get_link()
4763 res = ERR_PTR(security_inode_readlink(dentry)); in vfs_get_link()
4765 res = inode->i_op->get_link(dentry, inode, done); in vfs_get_link()
4772 const char *page_get_link(struct dentry *dentry, struct inode *inode, in page_get_link() argument
4779 if (!dentry) { in page_get_link()
4807 int page_readlink(struct dentry *dentry, char __user *buffer, int buflen) in page_readlink() argument
4811 page_get_link(dentry, d_inode(dentry), in page_readlink()