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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/lockd/share.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/lockd/share.h')
-rw-r--r--fs/lockd/share.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/fs/lockd/share.h b/fs/lockd/share.h
new file mode 100644
index 000000000..a12b6c454
--- /dev/null
+++ b/fs/lockd/share.h
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * DOS share management for lockd.
+ *
+ * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef _LOCKD_SHARE_H
+#define _LOCKD_SHARE_H
+
+#include <linux/bits.h>
+
+/* Synthetic svid for lockowner lookup during share operations */
+#define LOCKD_SHARE_SVID (~(u32)0)
+
+/* One bit per (access, deny) pair; index = (access << 2) | deny */
+#define LOCKD_FSH_BIT(a, d) BIT(((a) << 2) | (d))
+
+/*
+ * DOS share for a specific file
+ */
+struct lockd_share {
+ struct lockd_share * s_next; /* linked list */
+ struct nlm_host * s_host; /* client host */
+ struct nlm_file * s_file; /* shared file */
+ struct xdr_netobj s_owner; /* owner handle */
+ u32 s_access; /* access mode */
+ u32 s_mode; /* deny mode */
+ u16 s_access_deny_bmap; /* held (access, deny) pairs */
+};
+
+__be32 nlmsvc_share_file(struct nlm_host *host, struct nlm_file *file,
+ struct xdr_netobj *oh, u32 access, u32 mode);
+__be32 nlmsvc_unshare_file(struct nlm_host *host, struct nlm_file *file,
+ struct xdr_netobj *oh, u32 access, u32 mode);
+void nlmsvc_traverse_shares(struct nlm_host *, struct nlm_file *,
+ nlm_host_match_fn_t);
+
+#endif /* _LOCKD_SHARE_H */