fusefs: raise the protocol level to 7.21
Jumping from protocol 7.15 to 7.21 adds several new features. While they're all potentially useful, they're also all optional, and I'm not implementing any right now because my highest priority lies in a later version. Sponsored by: The FreeBSD Foundation
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asomers
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@ -68,27 +68,49 @@
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* 7.15
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* - add store notify
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* - add retrieve notify
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*
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* 7.16
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* - add BATCH_FORGET request
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* - FUSE_IOCTL_UNRESTRICTED shall now return with array of 'struct
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* fuse_ioctl_iovec' instead of ambiguous 'struct iovec'
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* - add FUSE_IOCTL_32BIT flag
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*
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* 7.17
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* - add FUSE_FLOCK_LOCKS and FUSE_RELEASE_FLOCK_UNLOCK
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*
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* 7.18
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* - add FUSE_IOCTL_DIR flag
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* - add FUSE_NOTIFY_DELETE
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*
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* 7.19
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* - add FUSE_FALLOCATE
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*
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* 7.20
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* - add FUSE_AUTO_INVAL_DATA
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* 7.21
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* - add FUSE_READDIRPLUS
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* - send the requested events in POLL request
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*/
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#ifndef _FUSE_FUSE_KERNEL_H
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#define _FUSE_FUSE_KERNEL_H
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#ifndef linux
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#ifdef __linux__
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#include <linux/types.h>
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#else
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#include <sys/types.h>
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#define __u64 uint64_t
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#define __s64 int64_t
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#define __u32 uint32_t
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#define __s32 int32_t
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#define __u16 uint16_t
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#else
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#include <linux/types.h>
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#endif
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/** Version number of this interface */
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#define FUSE_KERNEL_VERSION 7
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/** Minor version number of this interface */
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#define FUSE_KERNEL_MINOR_VERSION 15
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#define FUSE_KERNEL_MINOR_VERSION 21
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/** The node ID of the root inode */
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#define FUSE_ROOT_ID 1
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@ -163,8 +185,21 @@ struct fuse_file_lock {
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/**
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* INIT request/reply flags
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*
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* FUSE_ASYNC_READ: asynchronous read requests
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* FUSE_POSIX_LOCKS: remote locking for POSIX file locks
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* FUSE_FILE_OPS: kernel sends file handle for fstat, etc... (not yet supported)
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* FUSE_ATOMIC_O_TRUNC: handles the O_TRUNC open flag in the filesystem
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* FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".."
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* FUSE_BIG_WRITES: filesystem can handle write size larger than 4kB
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* FUSE_DONT_MASK: don't apply umask to file mode on create operations
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* FUSE_SPLICE_WRITE: kernel supports splice write on the device
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* FUSE_SPLICE_MOVE: kernel supports splice move on the device
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* FUSE_SPLICE_READ: kernel supports splice read on the device
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* FUSE_FLOCK_LOCKS: remote locking for BSD style file locks
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* FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories
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* FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages
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* FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one)
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* FUSE_READDIRPLUS_AUTO: adaptive readdirplus
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*/
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#define FUSE_ASYNC_READ (1 << 0)
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#define FUSE_POSIX_LOCKS (1 << 1)
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@ -173,6 +208,14 @@ struct fuse_file_lock {
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#define FUSE_EXPORT_SUPPORT (1 << 4)
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#define FUSE_BIG_WRITES (1 << 5)
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#define FUSE_DONT_MASK (1 << 6)
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#define FUSE_SPLICE_WRITE (1 << 7)
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#define FUSE_SPLICE_MOVE (1 << 8)
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#define FUSE_SPLICE_READ (1 << 9)
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#define FUSE_FLOCK_LOCKS (1 << 10)
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#define FUSE_HAS_IOCTL_DIR (1 << 11)
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#define FUSE_AUTO_INVAL_DATA (1 << 12)
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#define FUSE_DO_READDIRPLUS (1 << 13)
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#define FUSE_READDIRPLUS_AUTO (1 << 14)
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#ifdef linux
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/**
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@ -187,6 +230,7 @@ struct fuse_file_lock {
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* Release flags
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*/
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#define FUSE_RELEASE_FLUSH (1 << 0)
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#define FUSE_RELEASE_FLOCK_UNLOCK (1 << 1)
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/**
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* Getattr flags
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@ -218,12 +262,16 @@ struct fuse_file_lock {
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* FUSE_IOCTL_COMPAT: 32bit compat ioctl on 64bit machine
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* FUSE_IOCTL_UNRESTRICTED: not restricted to well-formed ioctls, retry allowed
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* FUSE_IOCTL_RETRY: retry with new iovecs
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* FUSE_IOCTL_32BIT: 32bit ioctl
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* FUSE_IOCTL_DIR: is a directory
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*
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* FUSE_IOCTL_MAX_IOV: maximum of in_iovecs + out_iovecs
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*/
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#define FUSE_IOCTL_COMPAT (1 << 0)
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#define FUSE_IOCTL_UNRESTRICTED (1 << 1)
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#define FUSE_IOCTL_RETRY (1 << 2)
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#define FUSE_IOCTL_32BIT (1 << 3)
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#define FUSE_IOCTL_DIR (1 << 4)
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#define FUSE_IOCTL_MAX_IOV 256
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@ -274,6 +322,9 @@ enum fuse_opcode {
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FUSE_IOCTL = 39,
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FUSE_POLL = 40,
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FUSE_NOTIFY_REPLY = 41,
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FUSE_BATCH_FORGET = 42,
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FUSE_FALLOCATE = 43,
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FUSE_READDIRPLUS = 44,
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#ifdef linux
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/* CUSE specific operations */
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@ -287,6 +338,7 @@ enum fuse_notify_code {
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FUSE_NOTIFY_INVAL_ENTRY = 3,
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FUSE_NOTIFY_STORE = 4,
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FUSE_NOTIFY_RETRIEVE = 5,
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FUSE_NOTIFY_DELETE = 6,
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FUSE_NOTIFY_CODE_MAX,
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};
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@ -310,6 +362,16 @@ struct fuse_forget_in {
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__u64 nlookup;
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};
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struct fuse_forget_one {
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__u64 nodeid;
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__u64 nlookup;
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};
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struct fuse_batch_forget_in {
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__u32 count;
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__u32 dummy;
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};
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struct fuse_getattr_in {
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__u32 getattr_flags;
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__u32 dummy;
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@ -542,6 +604,11 @@ struct fuse_ioctl_in {
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__u32 out_size;
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};
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struct fuse_ioctl_iovec {
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__u64 base;
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__u64 len;
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};
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struct fuse_ioctl_out {
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__s32 result;
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__u32 flags;
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@ -553,7 +620,7 @@ struct fuse_poll_in {
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__u64 fh;
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__u64 kh;
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__u32 flags;
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__u32 padding;
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__u32 events;
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};
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struct fuse_poll_out {
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@ -565,6 +632,14 @@ struct fuse_notify_poll_wakeup_out {
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__u64 kh;
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};
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struct fuse_fallocate_in {
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__u64 fh;
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__u64 offset;
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__u64 length;
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__u32 mode;
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__u32 padding;
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};
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struct fuse_in_header {
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__u32 len;
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__u32 opcode;
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@ -587,7 +662,7 @@ struct fuse_dirent {
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__u64 off;
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__u32 namelen;
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__u32 type;
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char name[0];
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char name[];
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};
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#define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
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@ -595,6 +670,16 @@ struct fuse_dirent {
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#define FUSE_DIRENT_SIZE(d) \
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FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)
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struct fuse_direntplus {
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struct fuse_entry_out entry_out;
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struct fuse_dirent dirent;
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};
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#define FUSE_NAME_OFFSET_DIRENTPLUS \
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offsetof(struct fuse_direntplus, dirent.name)
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#define FUSE_DIRENTPLUS_SIZE(d) \
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FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen)
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struct fuse_notify_inval_inode_out {
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__u64 ino;
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__s64 off;
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@ -607,6 +692,13 @@ struct fuse_notify_inval_entry_out {
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__u32 padding;
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};
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struct fuse_notify_delete_out {
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__u64 parent;
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__u64 child;
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__u32 namelen;
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__u32 padding;
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};
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struct fuse_notify_store_out {
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__u64 nodeid;
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__u64 offset;
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