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NetBSD/lib/libperfuse/perfuse_priv.h

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= Open files = - Restore open on our own in fsycn and readdir, as the node may not already be open, and FUSE really wants it to be. No need to close immediatly, it can be done at inactive time. = Write operations = - fix a nasty bug that corrupted files on write (written added twice) - Keep track of file size in order to honour PUFFS_IO_APPEND = many fixes in rename = - handler overwritten nodes correctly - wait for all operations on the node to drain before doing rename, as filesystems may not cope with operations on a moving file. - setback PUFFS_SETBACK_INACT_N1 cannot be used from rename, we therefore miss the inactive time for an overwritten node. This bounds us to give up PUFFS_KFLAG_IAONDEMAND. = Removed files = - forbid most operations on a removed node, return ENOENT - setback PUFFS_SETBACK_NOREF_N1 at inactive stage to cause removed file reclaim = Misc = - Update outdated ARGSUSED for lint - Fix a memory leak (puffs_pn_remove instead of puffs_pn_put) - Do not use PUFFS_FLAG_BUILDPATH except for debug output. It makes the lookup code much simplier.
2010-09-29 12:01:10 +04:00
/* $NetBSD: perfuse_priv.h,v 1.13 2010/09/29 08:01:10 manu Exp $ */
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
/*-
* Copyright (c) 2010 Emmanuel Dreyfus. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _PERFUSE_PRIV_H_
#define _PERFUSE_PRIV_H_
#include <syslog.h>
#include <paths.h>
#include <err.h>
#include <sysexits.h>
#include <puffs.h>
#include "perfuse_if.h"
#include "fuse.h"
struct perfuse_state {
void *ps_private; /* Private field for libperfuse user */
struct puffs_usermount *ps_pu;
struct puffs_node *ps_root;
- if perfused is not already started (cannot connect to /dev/fuse), FUSE filesystems will attempt to start it on their own, and will communicate using a socketpair - do not advertise NULL file handle as being valid when sending themback to the FUSE filesystem. - unmount if we cannot talk to the FUSE process anymore - set calling process gid properly - debug message cleanup
2010-08-27 13:58:17 +04:00
uid_t ps_owner_uid;
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
int ps_flags;
#define PS_NO_ACCESS 0x0001 /* access is unimplemented; */
#define PS_NO_CREAT 0x0004 /* create is unimplemented */
#define PS_INLOOP 0x0008 /* puffs mainloop started */
long ps_fsid;
uint32_t ps_max_readahead;
uint32_t ps_max_write;
uint64_t ps_syncreads;
uint64_t ps_syncwrites;
uint64_t ps_asyncreads;
uint64_t ps_asyncwrites;
char *ps_source;
char *ps_target;
char *ps_filesystemtype;
int ps_mountflags;
uint64_t ps_unique;
perfuse_new_msg_fn ps_new_msg;
perfuse_xchg_msg_fn ps_xchg_msg;
perfuse_destroy_msg_fn ps_destroy_msg;
perfuse_get_inhdr_fn ps_get_inhdr;
perfuse_get_inpayload_fn ps_get_inpayload;
perfuse_get_outhdr_fn ps_get_outhdr;
perfuse_get_outpayload_fn ps_get_outpayload;
- performance improvement for read, readdir and write. Now we use SOCK_DGRAM, we can send many pages at once without hitting any bug - when creating a file, it is open for FUSE, but not for the kernel. If the kernel does not do a subsequent open, we have a leak. We fight against this by trying to close such file that the kernel left unopen for some time. - some code refactoring to make message exchange debug easier (more to come)
2010-09-20 11:00:21 +04:00
TAILQ_HEAD(, perfuse_node_data) ps_pnd;
int ps_pnd_count;
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
};
== file close operations == - use PUFFS_KFLAG_WTCACHE to puffs_init so that all writes are immediatly send to the filesystem, and we do not have anymore write after inactive. As a consequence, we can close files at inactive stage, and there is not any concern left with files opened at create time. We also do not have anymore to open ourselves in readdir and fsync. - Fsync on close (inactive stage). That makes sure we will not need to do these operations once the file is closed (FUSE want an open file). short sircuit the request that come after the close, bu not fsinc'ing closed files, - Use PUFFS_KFLAG_IAONDEMAND to get less inactive calls == Removed nodes == - more ENOENT retunred for operations on removed node (but there are probably some still missing): getattr, ooen, setattr, fsync - set PND_REMOVE before sending the UNLINK/RMDIR operations so that we avoid races during UNLINK completion. Also set PND_REMOVED on node we overwirte in rename == Filehandle fixes == - queue open operation to avoid getting two fh for one file - set FH in getattr, if the file is open - Just requires a read FH for fsyncdir, as we always opendir in read mode. Ok, this is misleading :-) == Misc == - do not set FUSE_FATTR_ATIME_NOW in setattr, as we provide the time - short circuit nilpotent operations in setattr - add a filename diagnostic flag to dump file names
2010-09-23 20:02:34 +04:00
enum perfuse_qtype {
PCQ_READDIR,
PCQ_READ,
PCQ_WRITE,
PCQ_AFTERWRITE,
= Open files = - Restore open on our own in fsycn and readdir, as the node may not already be open, and FUSE really wants it to be. No need to close immediatly, it can be done at inactive time. = Write operations = - fix a nasty bug that corrupted files on write (written added twice) - Keep track of file size in order to honour PUFFS_IO_APPEND = many fixes in rename = - handler overwritten nodes correctly - wait for all operations on the node to drain before doing rename, as filesystems may not cope with operations on a moving file. - setback PUFFS_SETBACK_INACT_N1 cannot be used from rename, we therefore miss the inactive time for an overwritten node. This bounds us to give up PUFFS_KFLAG_IAONDEMAND. = Removed files = - forbid most operations on a removed node, return ENOENT - setback PUFFS_SETBACK_NOREF_N1 at inactive stage to cause removed file reclaim = Misc = - Update outdated ARGSUSED for lint - Fix a memory leak (puffs_pn_remove instead of puffs_pn_put) - Do not use PUFFS_FLAG_BUILDPATH except for debug output. It makes the lookup code much simplier.
2010-09-29 12:01:10 +04:00
PCQ_OPEN,
PCQ_AFTERXCHG
== file close operations == - use PUFFS_KFLAG_WTCACHE to puffs_init so that all writes are immediatly send to the filesystem, and we do not have anymore write after inactive. As a consequence, we can close files at inactive stage, and there is not any concern left with files opened at create time. We also do not have anymore to open ourselves in readdir and fsync. - Fsync on close (inactive stage). That makes sure we will not need to do these operations once the file is closed (FUSE want an open file). short sircuit the request that come after the close, bu not fsinc'ing closed files, - Use PUFFS_KFLAG_IAONDEMAND to get less inactive calls == Removed nodes == - more ENOENT retunred for operations on removed node (but there are probably some still missing): getattr, ooen, setattr, fsync - set PND_REMOVE before sending the UNLINK/RMDIR operations so that we avoid races during UNLINK completion. Also set PND_REMOVED on node we overwirte in rename == Filehandle fixes == - queue open operation to avoid getting two fh for one file - set FH in getattr, if the file is open - Just requires a read FH for fsyncdir, as we always opendir in read mode. Ok, this is misleading :-) == Misc == - do not set FUSE_FATTR_ATIME_NOW in setattr, as we provide the time - short circuit nilpotent operations in setattr - add a filename diagnostic flag to dump file names
2010-09-23 20:02:34 +04:00
};
- performance improvement for read, readdir and write. Now we use SOCK_DGRAM, we can send many pages at once without hitting any bug - when creating a file, it is open for FUSE, but not for the kernel. If the kernel does not do a subsequent open, we have a leak. We fight against this by trying to close such file that the kernel left unopen for some time. - some code refactoring to make message exchange debug easier (more to come)
2010-09-20 11:00:21 +04:00
- Use SOCK_DGRAM instead of SOCK_STREAM, as the filesystem seems to assume datagram semantics: when using SOCK_STREAM, if perfused sends frames faster than the filesystem consumes them, it will grab multiple frames at once and discard anything beyond the first one. For now the code can work both with SOCK_DGRAM and SOCK_STREAM, but SOCK_STREAM support will probably have to be removed for the sake of readability. - Remeber to sync parent directories when moving a node - In debug output, display the requeue type (readdir, write, etc...)
2010-09-15 05:51:43 +04:00
#ifdef PERFUSE_DEBUG
extern const char *perfuse_qtypestr[];
#endif
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
struct perfuse_cc_queue {
enum perfuse_qtype pcq_type;
struct puffs_cc *pcq_cc;
TAILQ_ENTRY(perfuse_cc_queue) pcq_next;
};
struct perfuse_node_data {
- Postpone file close at reclaim time, since NetBSD sends fsync and setattr(mtime, ctime) after close, while FUSE expects the file to be open for these operations - remove unused argument to node_mk_common() - remove requeued requests when they are executed, not when they are tagged for schedule - try to make filehandle management simplier, by keeping track of only one read and one write filehandle (the latter being really read/write). - when CREATE is not available, we use the MKNOD/OPEN path. Fix a bug here where we opened the parent directory instead of the node: add the missing lookup of the mknod'ed node. - lookup file we just created: glusterfs does not really see them otherwise. - open file when doing setattr(mtime, ctime) on non open files, as some filesystems seems to require it. - Do not flush pagecache for removed nodes - Keep track of read/write operations in progress, and at reclaim time, make sure they are over before closing and forgeting the file.
2010-09-03 11:15:18 +04:00
uint64_t pnd_rfh;
uint64_t pnd_wfh;
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
uint64_t pnd_ino; /* inode */
uint64_t pnd_nlookup; /* vnode refcount */
== file close operations == - use PUFFS_KFLAG_WTCACHE to puffs_init so that all writes are immediatly send to the filesystem, and we do not have anymore write after inactive. As a consequence, we can close files at inactive stage, and there is not any concern left with files opened at create time. We also do not have anymore to open ourselves in readdir and fsync. - Fsync on close (inactive stage). That makes sure we will not need to do these operations once the file is closed (FUSE want an open file). short sircuit the request that come after the close, bu not fsinc'ing closed files, - Use PUFFS_KFLAG_IAONDEMAND to get less inactive calls == Removed nodes == - more ENOENT retunred for operations on removed node (but there are probably some still missing): getattr, ooen, setattr, fsync - set PND_REMOVE before sending the UNLINK/RMDIR operations so that we avoid races during UNLINK completion. Also set PND_REMOVED on node we overwirte in rename == Filehandle fixes == - queue open operation to avoid getting two fh for one file - set FH in getattr, if the file is open - Just requires a read FH for fsyncdir, as we always opendir in read mode. Ok, this is misleading :-) == Misc == - do not set FUSE_FATTR_ATIME_NOW in setattr, as we provide the time - short circuit nilpotent operations in setattr - add a filename diagnostic flag to dump file names
2010-09-23 20:02:34 +04:00
uint64_t pnd_size; /* file size */
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
uint64_t pnd_lock_owner;
struct dirent *pnd_dirent; /* native buffer for readdir */
build fixes for LP64
2010-09-06 05:17:05 +04:00
off_t pnd_dirent_len;
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
struct fuse_dirent *pnd_all_fd; /* FUSE buffer for readdir */
size_t pnd_all_fd_len;
TAILQ_HEAD(,perfuse_cc_queue) pnd_pcq; /* queued requests */
int pnd_flags;
- performance improvement for read, readdir and write. Now we use SOCK_DGRAM, we can send many pages at once without hitting any bug - when creating a file, it is open for FUSE, but not for the kernel. If the kernel does not do a subsequent open, we have a leak. We fight against this by trying to close such file that the kernel left unopen for some time. - some code refactoring to make message exchange debug easier (more to come)
2010-09-20 11:00:21 +04:00
#define PND_RECLAIMED 0x001 /* reclaim pending */
#define PND_INREADDIR 0x002 /* readdir in progress */
#define PND_DIRTY 0x004 /* There is some data to sync */
#define PND_RFH 0x008 /* Read FH allocated */
#define PND_WFH 0x010 /* Write FH allocated */
#define PND_REMOVED 0x020 /* Node was removed */
#define PND_INWRITE 0x040 /* write in progress */
== file close operations == - use PUFFS_KFLAG_WTCACHE to puffs_init so that all writes are immediatly send to the filesystem, and we do not have anymore write after inactive. As a consequence, we can close files at inactive stage, and there is not any concern left with files opened at create time. We also do not have anymore to open ourselves in readdir and fsync. - Fsync on close (inactive stage). That makes sure we will not need to do these operations once the file is closed (FUSE want an open file). short sircuit the request that come after the close, bu not fsinc'ing closed files, - Use PUFFS_KFLAG_IAONDEMAND to get less inactive calls == Removed nodes == - more ENOENT retunred for operations on removed node (but there are probably some still missing): getattr, ooen, setattr, fsync - set PND_REMOVE before sending the UNLINK/RMDIR operations so that we avoid races during UNLINK completion. Also set PND_REMOVED on node we overwirte in rename == Filehandle fixes == - queue open operation to avoid getting two fh for one file - set FH in getattr, if the file is open - Just requires a read FH for fsyncdir, as we always opendir in read mode. Ok, this is misleading :-) == Misc == - do not set FUSE_FATTR_ATIME_NOW in setattr, as we provide the time - short circuit nilpotent operations in setattr - add a filename diagnostic flag to dump file names
2010-09-23 20:02:34 +04:00
#define PND_INOPEN 0x100 /* open in progress */
= Open files = - Restore open on our own in fsycn and readdir, as the node may not already be open, and FUSE really wants it to be. No need to close immediatly, it can be done at inactive time. = Write operations = - fix a nasty bug that corrupted files on write (written added twice) - Keep track of file size in order to honour PUFFS_IO_APPEND = many fixes in rename = - handler overwritten nodes correctly - wait for all operations on the node to drain before doing rename, as filesystems may not cope with operations on a moving file. - setback PUFFS_SETBACK_INACT_N1 cannot be used from rename, we therefore miss the inactive time for an overwritten node. This bounds us to give up PUFFS_KFLAG_IAONDEMAND. = Removed files = - forbid most operations on a removed node, return ENOENT - setback PUFFS_SETBACK_NOREF_N1 at inactive stage to cause removed file reclaim = Misc = - Update outdated ARGSUSED for lint - Fix a memory leak (puffs_pn_remove instead of puffs_pn_put) - Do not use PUFFS_FLAG_BUILDPATH except for debug output. It makes the lookup code much simplier.
2010-09-29 12:01:10 +04:00
#define PND_GOTSIZE 0x200 /* pnd_size was set */
#define PND_INXCHG 0x400 /* FUSE exchange in progress */
- Postpone file close at reclaim time, since NetBSD sends fsync and setattr(mtime, ctime) after close, while FUSE expects the file to be open for these operations - remove unused argument to node_mk_common() - remove requeued requests when they are executed, not when they are tagged for schedule - try to make filehandle management simplier, by keeping track of only one read and one write filehandle (the latter being really read/write). - when CREATE is not available, we use the MKNOD/OPEN path. Fix a bug here where we opened the parent directory instead of the node: add the missing lookup of the mknod'ed node. - lookup file we just created: glusterfs does not really see them otherwise. - open file when doing setattr(mtime, ctime) on non open files, as some filesystems seems to require it. - Do not flush pagecache for removed nodes - Keep track of read/write operations in progress, and at reclaim time, make sure they are over before closing and forgeting the file.
2010-09-03 11:15:18 +04:00
#define PND_OPEN (PND_RFH|PND_WFH) /* File is open */
== file close operations == - use PUFFS_KFLAG_WTCACHE to puffs_init so that all writes are immediatly send to the filesystem, and we do not have anymore write after inactive. As a consequence, we can close files at inactive stage, and there is not any concern left with files opened at create time. We also do not have anymore to open ourselves in readdir and fsync. - Fsync on close (inactive stage). That makes sure we will not need to do these operations once the file is closed (FUSE want an open file). short sircuit the request that come after the close, bu not fsinc'ing closed files, - Use PUFFS_KFLAG_IAONDEMAND to get less inactive calls == Removed nodes == - more ENOENT retunred for operations on removed node (but there are probably some still missing): getattr, ooen, setattr, fsync - set PND_REMOVE before sending the UNLINK/RMDIR operations so that we avoid races during UNLINK completion. Also set PND_REMOVED on node we overwirte in rename == Filehandle fixes == - queue open operation to avoid getting two fh for one file - set FH in getattr, if the file is open - Just requires a read FH for fsyncdir, as we always opendir in read mode. Ok, this is misleading :-) == Misc == - do not set FUSE_FATTR_ATIME_NOW in setattr, as we provide the time - short circuit nilpotent operations in setattr - add a filename diagnostic flag to dump file names
2010-09-23 20:02:34 +04:00
#define PND_BUSY (PND_INREADDIR|PND_INWRITE|PND_INOPEN)
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
puffs_cookie_t pnd_parent;
int pnd_childcount;
- performance improvement for read, readdir and write. Now we use SOCK_DGRAM, we can send many pages at once without hitting any bug - when creating a file, it is open for FUSE, but not for the kernel. If the kernel does not do a subsequent open, we have a leak. We fight against this by trying to close such file that the kernel left unopen for some time. - some code refactoring to make message exchange debug easier (more to come)
2010-09-20 11:00:21 +04:00
time_t pnd_timestamp;
TAILQ_ENTRY(perfuse_node_data) pnd_next;
puffs_cookie_t pnd_pn;
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
};
#define PERFUSE_NODE_DATA(opc) \
((struct perfuse_node_data *)puffs_pn_getpriv((struct puffs_node *)opc))
#define UNSPEC_REPLY_LEN PERFUSE_UNSPEC_REPLY_LEN /* shorter! */
#define NO_PAYLOAD_REPLY_LEN 0
#define GET_INHDR(ps, pm) ps->ps_get_inhdr(pm)
#define GET_INPAYLOAD(ps, pm, type) \
(struct type *)(void *)ps->ps_get_inpayload(pm)
#define _GET_INPAYLOAD(ps, pm, type) (type)ps->ps_get_inpayload(pm)
#define GET_OUTHDR(ps, pm) ps->ps_get_outhdr(pm)
#define GET_OUTPAYLOAD(ps, pm, type) \
(struct type *)(void *)ps->ps_get_outpayload(pm)
#define _GET_OUTPAYLOAD(ps, pm, type) (type)ps->ps_get_outpayload(pm)
__BEGIN_DECLS
struct puffs_node *perfuse_new_pn(struct puffs_usermount *,
struct puffs_node *);
- performance improvement for read, readdir and write. Now we use SOCK_DGRAM, we can send many pages at once without hitting any bug - when creating a file, it is open for FUSE, but not for the kernel. If the kernel does not do a subsequent open, we have a leak. We fight against this by trying to close such file that the kernel left unopen for some time. - some code refactoring to make message exchange debug easier (more to come)
2010-09-20 11:00:21 +04:00
void perfuse_destroy_pn(struct puffs_usermount *, struct puffs_node *);
== file close operations == - use PUFFS_KFLAG_WTCACHE to puffs_init so that all writes are immediatly send to the filesystem, and we do not have anymore write after inactive. As a consequence, we can close files at inactive stage, and there is not any concern left with files opened at create time. We also do not have anymore to open ourselves in readdir and fsync. - Fsync on close (inactive stage). That makes sure we will not need to do these operations once the file is closed (FUSE want an open file). short sircuit the request that come after the close, bu not fsinc'ing closed files, - Use PUFFS_KFLAG_IAONDEMAND to get less inactive calls == Removed nodes == - more ENOENT retunred for operations on removed node (but there are probably some still missing): getattr, ooen, setattr, fsync - set PND_REMOVE before sending the UNLINK/RMDIR operations so that we avoid races during UNLINK completion. Also set PND_REMOVED on node we overwirte in rename == Filehandle fixes == - queue open operation to avoid getting two fh for one file - set FH in getattr, if the file is open - Just requires a read FH for fsyncdir, as we always opendir in read mode. Ok, this is misleading :-) == Misc == - do not set FUSE_FATTR_ATIME_NOW in setattr, as we provide the time - short circuit nilpotent operations in setattr - add a filename diagnostic flag to dump file names
2010-09-23 20:02:34 +04:00
void perfuse_new_fh(puffs_cookie_t, uint64_t, int);
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
void perfuse_destroy_fh(puffs_cookie_t, uint64_t);
- Postpone file close at reclaim time, since NetBSD sends fsync and setattr(mtime, ctime) after close, while FUSE expects the file to be open for these operations - remove unused argument to node_mk_common() - remove requeued requests when they are executed, not when they are tagged for schedule - try to make filehandle management simplier, by keeping track of only one read and one write filehandle (the latter being really read/write). - when CREATE is not available, we use the MKNOD/OPEN path. Fix a bug here where we opened the parent directory instead of the node: add the missing lookup of the mknod'ed node. - lookup file we just created: glusterfs does not really see them otherwise. - open file when doing setattr(mtime, ctime) on non open files, as some filesystems seems to require it. - Do not flush pagecache for removed nodes - Keep track of read/write operations in progress, and at reclaim time, make sure they are over before closing and forgeting the file.
2010-09-03 11:15:18 +04:00
uint64_t perfuse_get_fh(puffs_cookie_t, int);
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
uint64_t perfuse_next_unique(struct puffs_usermount *);
- performance improvement for read, readdir and write. Now we use SOCK_DGRAM, we can send many pages at once without hitting any bug - when creating a file, it is open for FUSE, but not for the kernel. If the kernel does not do a subsequent open, we have a leak. We fight against this by trying to close such file that the kernel left unopen for some time. - some code refactoring to make message exchange debug easier (more to come)
2010-09-20 11:00:21 +04:00
int perfuse_node_close_common(struct puffs_usermount *, puffs_cookie_t, int);
libperfuse(3) is a PUFFS relay to FUSE. In order to use it, FUSE filesystem must be patched to #include <perfuse.h> in the source files that open /dev/fuse and perform the mount(2) system call. The FUSE filesystem must be linked with -lperfuse. libperfuse(3) implements the FUSE kernel interface, on which libfuse or any FUSE filesystem that opens /dev/fuse directly can be used. For now, an external daemon called perfused(8) is used. This may change in the future.
2010-08-25 11:16:00 +04:00
char *perfuse_fs_mount(int, ssize_t);
/*
* opc.c - filesystem operations
*/
int perfuse_fs_unmount(struct puffs_usermount *, int);
int perfuse_fs_statvfs(struct puffs_usermount *, struct statvfs *);
int perfuse_fs_sync(struct puffs_usermount *, int,
const struct puffs_cred *);
int perfuse_fs_fhtonode(struct puffs_usermount *, void *, size_t,
struct puffs_newinfo *);
int perfuse_fs_nodetofh(struct puffs_usermount *, puffs_cookie_t,
void *, size_t *);
void perfuse_fs_suspend(struct puffs_usermount *, int);
int perfuse_node_lookup(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *);
int perfuse_node_create(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *);
int perfuse_node_mknod(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *);
int perfuse_node_open(struct puffs_usermount *,
puffs_cookie_t, int, const struct puffs_cred *);
int perfuse_node_close(struct puffs_usermount *,
puffs_cookie_t, int, const struct puffs_cred *);
int perfuse_node_access(struct puffs_usermount *,
puffs_cookie_t, int, const struct puffs_cred *);
int perfuse_node_getattr(struct puffs_usermount *,
puffs_cookie_t, struct vattr *, const struct puffs_cred *);
int perfuse_node_setattr(struct puffs_usermount *,
puffs_cookie_t, const struct vattr *, const struct puffs_cred *);
int perfuse_node_poll(struct puffs_usermount *, puffs_cookie_t, int *);
int perfuse_node_mmap(struct puffs_usermount *,
puffs_cookie_t, vm_prot_t, const struct puffs_cred *);
int perfuse_node_fsync(struct puffs_usermount *,
puffs_cookie_t, const struct puffs_cred *, int, off_t, off_t);
int perfuse_node_seek(struct puffs_usermount *,
puffs_cookie_t, off_t, off_t, const struct puffs_cred *);
int perfuse_node_remove(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int perfuse_node_link(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int perfuse_node_rename(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int perfuse_node_mkdir(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *);
int perfuse_node_rmdir(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int perfuse_node_symlink(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *, const char *);
int perfuse_node_readdir(struct puffs_usermount *,
puffs_cookie_t, struct dirent *, off_t *, size_t *,
const struct puffs_cred *, int *, off_t *, size_t *);
int perfuse_node_readlink(struct puffs_usermount *,
puffs_cookie_t, const struct puffs_cred *, char *, size_t *);
int perfuse_node_reclaim(struct puffs_usermount *, puffs_cookie_t);
int perfuse_node_inactive(struct puffs_usermount *, puffs_cookie_t);
int perfuse_node_print(struct puffs_usermount *, puffs_cookie_t);
int perfuse_node_pathconf(struct puffs_usermount *,
puffs_cookie_t, int, int *);
int perfuse_node_advlock(struct puffs_usermount *,
puffs_cookie_t, void *, int, struct flock *, int);
int perfuse_node_read(struct puffs_usermount *, puffs_cookie_t,
uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
int perfuse_node_write(struct puffs_usermount *, puffs_cookie_t,
uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
void perfuse_cache_write(struct puffs_usermount *,
puffs_cookie_t, size_t, struct puffs_cacherun *);
__END_DECLS
#endif /* _PERFUSE_PRIV_H_ */