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authorLinus Torvalds <torvalds@linux-foundation.org>2026-09-05 11:59:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-09-05 11:59:05 -0700
commit9f0346dcbea363787186c94ef94dd01aaa215afa (patch)
treeb81c168f4d0dbe4c7f4750f4598d48a6deb72094 /fs/ext2/acl.h
downloadlinux-stable-9f0346dcbea363787186c94ef94dd01aaa215afa.tar.gz
linux-stable-9f0346dcbea363787186c94ef94dd01aaa215afa.zip
Merge tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-coregrafted
Pull driver core fixes from Danilo Krummrich: - Fix kernfs listxattr() not returning security xattr names (e.g. SELinux labels) when the kernfs node has no allocated kernfs_iattrs - Fix silent truncation of IRQ vector indices in the Rust PCI abstractions - Don't select OF from DRIVER_PE_KUNIT_TEST; skip the test when OF is disabled instead of silently enabling extra kernel functionality - Russ Weight is retiring from kernel development; update the Firmware Loader sysfs contact to the driver-core mailing list, add a CREDITS entry for Firmware Upload, and update MAINTAINERS accordingly * tag 'driver-core-7.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: MAINTAINERS: Remove Russ Weight from Firmware Loader CREDITS: Add CREDITS entry for Firmware Upload firmware_loader: Change contact for sysfs nodes rust: pci: reject IRQ vector indices that do not fit in u32 kernfs: preserve security xattrs without allocating iattrs drivers: base: test: DRIVER_PE_KUNIT_TEST should not select OF
Diffstat (limited to 'fs/ext2/acl.h')
-rw-r--r--fs/ext2/acl.h73
1 files changed, 73 insertions, 0 deletions
diff --git a/fs/ext2/acl.h b/fs/ext2/acl.h
new file mode 100644
index 000000000..4a8443a2b
--- /dev/null
+++ b/fs/ext2/acl.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ File: fs/ext2/acl.h
+
+ (C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
+*/
+
+#include <linux/posix_acl_xattr.h>
+
+#define EXT2_ACL_VERSION 0x0001
+
+typedef struct {
+ __le16 e_tag;
+ __le16 e_perm;
+ __le32 e_id;
+} ext2_acl_entry;
+
+typedef struct {
+ __le16 e_tag;
+ __le16 e_perm;
+} ext2_acl_entry_short;
+
+typedef struct {
+ __le32 a_version;
+} ext2_acl_header;
+
+static inline size_t ext2_acl_size(int count)
+{
+ if (count <= 4) {
+ return sizeof(ext2_acl_header) +
+ count * sizeof(ext2_acl_entry_short);
+ } else {
+ return sizeof(ext2_acl_header) +
+ 4 * sizeof(ext2_acl_entry_short) +
+ (count - 4) * sizeof(ext2_acl_entry);
+ }
+}
+
+static inline int ext2_acl_count(size_t size)
+{
+ ssize_t s;
+ size -= sizeof(ext2_acl_header);
+ s = size - 4 * sizeof(ext2_acl_entry_short);
+ if (s < 0) {
+ if (size % sizeof(ext2_acl_entry_short))
+ return -1;
+ return size / sizeof(ext2_acl_entry_short);
+ } else {
+ if (s % sizeof(ext2_acl_entry))
+ return -1;
+ return s / sizeof(ext2_acl_entry) + 4;
+ }
+}
+
+#ifdef CONFIG_EXT2_FS_POSIX_ACL
+
+/* acl.c */
+extern struct posix_acl *ext2_get_acl(struct inode *inode, int type, bool rcu);
+extern int ext2_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
+ struct posix_acl *acl, int type);
+extern int ext2_init_acl (struct inode *, struct inode *);
+
+#else
+#include <linux/sched.h>
+#define ext2_get_acl NULL
+#define ext2_set_acl NULL
+
+static inline int ext2_init_acl (struct inode *inode, struct inode *dir)
+{
+ return 0;
+}
+#endif
+