Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted

Pull media updates from Mauro Carvalho Chehab:

 - v4l2-core: added ISP statistics support and per-block validation

 - v4l2-core: Allow unknown HDR10 white point and luminance

 - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor

 - New codec: Milos: VPU v2.0 codec support

 - isp driver: gained support for Dreamchip RPPX1 ISP framework

 - vsp1 driver: gained support for RZ/T2H and RZ/N2H

 - Novalake driver: gained CVS support for new NVL hardware

 - dvb-core: fix feed leak on failed DMX_ADD_PID

 - several driver fixes, cleanups and minor improvements

* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
  media: ipu-bridge: check all DMI entries when overriding sensor rotation
  media: v4l2-async: avoid deleting unlinked ASC entry on link error
  media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
  media: intel/ipu6: fix async notifier cleanup leak on parse error
  media: staging/ipu7: fix async notifier UAF on probe error path
  media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
  media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
  media: rcar-isp: Fix VSPX reference leaks
  media: rcar-isp: Release ISPCORE resources
  media: i2c: imx415: Release runtime PM reference on VBLANK error
  media: i2c: imx415: Return test pattern write errors
  media: renesas: vsp1: Declare index variables in for loop statement
  media: renesas: vsp1: Make reset control optional to support platforms without a reset line
  media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
  media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
  media: nxp: imx8-isi: Add additional 32-bit RGB format support
  media: nxp: imx8-isi: Add 16-bit raw Bayer format support
  media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
  media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
  media: nxp: imx8-isi: Correct color map between V4L2 and ISI
  ...

1 files changed, 434 insertions, 0 deletions

diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
new file mode 100644
index 000000000..8666233ec
--- /dev/null
+++ b/fs/ext2/namei.c
@@ -0,0 +1,434 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * linux/fs/ext2/namei.c
+ *
+ * Rewrite to pagecache. Almost all code had been changed, so blame me
+ * if the things go wrong. Please, send bug reports to
+ * viro@parcelfarce.linux.theplanet.co.uk
+ *
+ * Stuff here is basically a glue between the VFS and generic UNIXish
+ * filesystem that keeps everything in pagecache. All knowledge of the
+ * directory layout is in fs/ext2/dir.c - it turned out to be easily separatable
+ * and it's easier to debug that way. In principle we might want to
+ * generalize that a bit and turn it into a library. Or not.
+ *
+ * The only non-static object here is ext2_dir_inode_operations.
+ *
+ * Copyright (C) 1992, 1993, 1994, 1995
+ * Remy Card (card@masi.ibp.fr)
+ * Laboratoire MASI - Institut Blaise Pascal
+ * Universite Pierre et Marie Curie (Paris VI)
+ *
+ *  from
+ *
+ *  linux/fs/minix/namei.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *
+ *  Big-endian to little-endian byte-swapping/bitmaps by
+ *        David S. Miller (davem@caip.rutgers.edu), 1995
+ */
+
+#include <linux/pagemap.h>
+#include <linux/quotaops.h>
+#include "ext2.h"
+#include "xattr.h"
+#include "acl.h"
+
+static inline int ext2_add_nondir(struct dentry *dentry, struct inode *inode)
+{
+	int err = ext2_add_link(dentry, inode);
+	if (!err) {
+		d_instantiate_new(dentry, inode);
+		return 0;
+	}
+	inode_dec_link_count(inode);
+	discard_new_inode(inode);
+	return err;
+}
+
+/*
+ * Methods themselves.
+ */
+
+static struct dentry *ext2_lookup(struct inode * dir, struct dentry *dentry, unsigned int flags)
+{
+	struct inode * inode;
+	ino_t ino;
+	int res;
+	
+	if (dentry->d_name.len > EXT2_NAME_LEN)
+		return ERR_PTR(-ENAMETOOLONG);
+
+	res = ext2_inode_by_name(dir, &dentry->d_name, &ino);
+	if (res) {
+		if (res != -ENOENT)
+			return ERR_PTR(res);
+		inode = NULL;
+	} else {
+		inode = ext2_iget(dir->i_sb, ino);
+		if (inode == ERR_PTR(-ESTALE)) {
+			ext2_error(dir->i_sb, __func__,
+					"deleted inode referenced: %lu",
+					(unsigned long) ino);
+			return ERR_PTR(-EIO);
+		}
+	}
+	return d_splice_alias(inode, dentry);
+}
+
+struct dentry *ext2_get_parent(struct dentry *child)
+{
+	ino_t ino;
+	int res;
+
+	res = ext2_inode_by_name(d_inode(child), &dotdot_name, &ino);
+	if (res)
+		return ERR_PTR(res);
+
+	return d_obtain_alias(ext2_iget(child->d_sb, ino));
+} 
+
+/*
+ * By the time this is called, we already have created
+ * the directory cache entry for the new file, but it
+ * is so far negative - it has no inode.
+ *
+ * If the create succeeds, we fill in the inode information
+ * with d_instantiate(). 
+ */
+static int ext2_create (struct mnt_idmap * idmap,
+			struct inode * dir, struct dentry * dentry,
+			umode_t mode)
+{
+	struct inode *inode;
+	int err;
+
+	err = dquot_initialize(dir);
+	if (err)
+		return err;
+
+	inode = ext2_new_inode(dir, mode, &dentry->d_name);
+	if (IS_ERR(inode))
+		return PTR_ERR(inode);
+
+	ext2_set_file_ops(inode);
+	mark_inode_dirty(inode);
+	return ext2_add_nondir(dentry, inode);
+}
+
+static int ext2_tmpfile(struct mnt_idmap *idmap, struct inode *dir,
+			struct file *file, umode_t mode)
+{
+	struct inode *inode = ext2_new_inode(dir, mode, NULL);
+	if (IS_ERR(inode))
+		return PTR_ERR(inode);
+
+	ext2_set_file_ops(inode);
+	mark_inode_dirty(inode);
+	d_tmpfile(file, inode);
+	unlock_new_inode(inode);
+	return finish_open_simple(file, 0);
+}
+
+static int ext2_mknod (struct mnt_idmap * idmap, struct inode * dir,
+	struct dentry *dentry, umode_t mode, dev_t rdev)
+{
+	struct inode * inode;
+	int err;
+
+	err = dquot_initialize(dir);
+	if (err)
+		return err;
+
+	inode = ext2_new_inode (dir, mode, &dentry->d_name);
+	err = PTR_ERR(inode);
+	if (!IS_ERR(inode)) {
+		init_special_inode(inode, inode->i_mode, rdev);
+		inode->i_op = &ext2_special_inode_operations;
+		mark_inode_dirty(inode);
+		err = ext2_add_nondir(dentry, inode);
+	}
+	return err;
+}
+
+static int ext2_symlink (struct mnt_idmap * idmap, struct inode * dir,
+	struct dentry * dentry, const char * symname)
+{
+	struct super_block * sb = dir->i_sb;
+	int err = -ENAMETOOLONG;
+	unsigned l = strlen(symname)+1;
+	struct inode * inode;
+
+	if (l > sb->s_blocksize)
+		goto out;
+
+	err = dquot_initialize(dir);
+	if (err)
+		goto out;
+
+	inode = ext2_new_inode (dir, S_IFLNK | S_IRWXUGO, &dentry->d_name);
+	err = PTR_ERR(inode);
+	if (IS_ERR(inode))
+		goto out;
+
+	if (l > sizeof (EXT2_I(inode)->i_data)) {
+		/* slow symlink */
+		inode->i_op = &ext2_symlink_inode_operations;
+		inode_nohighmem(inode);
+		inode->i_mapping->a_ops = &ext2_aops;
+		err = page_symlink(inode, symname, l);
+		if (err)
+			goto out_fail;
+	} else {
+		/* fast symlink */
+		inode->i_op = &ext2_fast_symlink_inode_operations;
+		inode->i_link = (char*)EXT2_I(inode)->i_data;
+		memcpy(inode->i_link, symname, l);
+		inode->i_size = l-1;
+	}
+	mark_inode_dirty(inode);
+
+	err = ext2_add_nondir(dentry, inode);
+out:
+	return err;
+
+out_fail:
+	inode_dec_link_count(inode);
+	discard_new_inode(inode);
+	goto out;
+}
+
+static int ext2_link (struct dentry * old_dentry, struct inode * dir,
+	struct dentry *dentry)
+{
+	struct inode *inode = d_inode(old_dentry);
+	int err;
+
+	err = dquot_initialize(dir);
+	if (err)
+		return err;
+
+	inode_set_ctime_current(inode);
+	inode_inc_link_count(inode);
+	ihold(inode);
+
+	err = ext2_add_link(dentry, inode);
+	if (!err) {
+		d_instantiate(dentry, inode);
+		return 0;
+	}
+	inode_dec_link_count(inode);
+	iput(inode);
+	return err;
+}
+
+static struct dentry *ext2_mkdir(struct mnt_idmap * idmap,
+				 struct inode * dir, struct dentry * dentry,
+				 umode_t mode)
+{
+	struct inode * inode;
+	int err;
+
+	err = dquot_initialize(dir);
+	if (err)
+		return ERR_PTR(err);
+
+	inode_inc_link_count(dir);
+
+	inode = ext2_new_inode(dir, mode, &dentry->d_name);
+	err = PTR_ERR(inode);
+	if (IS_ERR(inode))
+		goto out_dir;
+
+	inode->i_op = &ext2_dir_inode_operations;
+	inode->i_fop = &ext2_dir_operations;
+	inode->i_mapping->a_ops = &ext2_aops;
+
+	inode_inc_link_count(inode);
+
+	err = ext2_make_empty(inode, dir);
+	if (err)
+		goto out_fail;
+
+	err = ext2_add_link(dentry, inode);
+	if (err)
+		goto out_fail;
+
+	d_instantiate_new(dentry, inode);
+out:
+	return ERR_PTR(err);
+
+out_fail:
+	inode_dec_link_count(inode);
+	inode_dec_link_count(inode);
+	discard_new_inode(inode);
+out_dir:
+	inode_dec_link_count(dir);
+	goto out;
+}
+
+static int ext2_unlink(struct inode *dir, struct dentry *dentry)
+{
+	struct inode *inode = d_inode(dentry);
+	struct ext2_dir_entry_2 *de;
+	struct folio *folio;
+	int err;
+
+	err = dquot_initialize(dir);
+	if (err)
+		goto out;
+
+	de = ext2_find_entry(dir, &dentry->d_name, &folio);
+	if (IS_ERR(de)) {
+		err = PTR_ERR(de);
+		goto out;
+	}
+
+	err = ext2_delete_entry(de, folio);
+	folio_release_kmap(folio, de);
+	if (err)
+		goto out;
+
+	inode_set_ctime_to_ts(inode, inode_get_ctime(dir));
+
+	if (inode->i_nlink)
+		inode_dec_link_count(inode);
+
+	err = 0;
+out:
+	return err;
+}
+
+static int ext2_rmdir (struct inode * dir, struct dentry *dentry)
+{
+	struct inode * inode = d_inode(dentry);
+	int err = -ENOTEMPTY;
+
+	if (ext2_empty_dir(inode)) {
+		err = ext2_unlink(dir, dentry);
+		if (!err) {
+			inode->i_size = 0;
+			inode_dec_link_count(inode);
+			inode_dec_link_count(dir);
+		}
+	}
+	return err;
+}
+
+static int ext2_rename (struct mnt_idmap * idmap,
+			struct inode * old_dir, struct dentry * old_dentry,
+			struct inode * new_dir, struct dentry * new_dentry,
+			unsigned int flags)
+{
+	struct inode * old_inode = d_inode(old_dentry);
+	struct inode * new_inode = d_inode(new_dentry);
+	struct folio *dir_folio = NULL;
+	struct ext2_dir_entry_2 * dir_de = NULL;
+	struct folio * old_folio;
+	struct ext2_dir_entry_2 * old_de;
+	bool old_is_dir = S_ISDIR(old_inode->i_mode);
+	int err;
+
+	if (flags & ~RENAME_NOREPLACE)
+		return -EINVAL;
+
+	err = dquot_initialize(old_dir);
+	if (err)
+		return err;
+
+	err = dquot_initialize(new_dir);
+	if (err)
+		return err;
+
+	old_de = ext2_find_entry(old_dir, &old_dentry->d_name, &old_folio);
+	if (IS_ERR(old_de))
+		return PTR_ERR(old_de);
+
+	if (old_is_dir && old_dir != new_dir) {
+		err = -EIO;
+		dir_de = ext2_dotdot(old_inode, &dir_folio);
+		if (!dir_de)
+			goto out_old;
+	}
+
+	if (new_inode) {
+		struct folio *new_folio;
+		struct ext2_dir_entry_2 *new_de;
+
+		err = -ENOTEMPTY;
+		if (old_is_dir && !ext2_empty_dir(new_inode))
+			goto out_dir;
+
+		new_de = ext2_find_entry(new_dir, &new_dentry->d_name,
+					 &new_folio);
+		if (IS_ERR(new_de)) {
+			err = PTR_ERR(new_de);
+			goto out_dir;
+		}
+		err = ext2_set_link(new_dir, new_de, new_folio, old_inode, true);
+		folio_release_kmap(new_folio, new_de);
+		if (err)
+			goto out_dir;
+		inode_set_ctime_current(new_inode);
+		if (old_is_dir)
+			drop_nlink(new_inode);
+		inode_dec_link_count(new_inode);
+	} else {
+		err = ext2_add_link(new_dentry, old_inode);
+		if (err)
+			goto out_dir;
+		if (old_is_dir)
+			inode_inc_link_count(new_dir);
+	}
+
+	/*
+	 * Like most other Unix systems, set the ctime for inodes on a
+ 	 * rename.
+	 */
+	inode_set_ctime_current(old_inode);
+	mark_inode_dirty(old_inode);
+
+	err = ext2_delete_entry(old_de, old_folio);
+	if (!err && old_is_dir) {
+		if (old_dir != new_dir)
+			err = ext2_set_link(old_inode, dir_de, dir_folio,
+					    new_dir, false);
+
+		inode_dec_link_count(old_dir);
+	}
+out_dir:
+	if (dir_de)
+		folio_release_kmap(dir_folio, dir_de);
+out_old:
+	folio_release_kmap(old_folio, old_de);
+	return err;
+}
+
+const struct inode_operations ext2_dir_inode_operations = {
+	.create		= ext2_create,
+	.lookup		= ext2_lookup,
+	.link		= ext2_link,
+	.unlink		= ext2_unlink,
+	.symlink	= ext2_symlink,
+	.mkdir		= ext2_mkdir,
+	.rmdir		= ext2_rmdir,
+	.mknod		= ext2_mknod,
+	.rename		= ext2_rename,
+	.listxattr	= ext2_listxattr,
+	.getattr	= ext2_getattr,
+	.setattr	= ext2_setattr,
+	.get_inode_acl	= ext2_get_acl,
+	.set_acl	= ext2_set_acl,
+	.tmpfile	= ext2_tmpfile,
+	.fileattr_get	= ext2_fileattr_get,
+	.fileattr_set	= ext2_fileattr_set,
+};
+
+const struct inode_operations ext2_special_inode_operations = {
+	.listxattr	= ext2_listxattr,
+	.getattr	= ext2_getattr,
+	.setattr	= ext2_setattr,
+	.get_inode_acl	= ext2_get_acl,
+	.set_acl	= ext2_set_acl,
+};