From 920e65dc6911da28a58e17f4b683302636fc6d8e Mon Sep 17 00:00:00 2001 From: "Venkateswararao Jujjuri (JV)" Date: Wed, 22 Sep 2010 17:19:19 -0700 Subject: [9p] Introduce client side TFSYNC/RFSYNC for dotl. SYNOPSIS size[4] Tfsync tag[2] fid[4] size[4] Rfsync tag[2] DESCRIPTION The Tfsync transaction transfers ("flushes") all modified in-core data of file identified by fid to the disk device (or other permanent storage device) where that file resides. Signed-off-by: Venkateswararao Jujjuri Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net/9p/client.h') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 7f63d5ab7b44..8744e3ad4a07 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -229,6 +229,7 @@ int p9_client_symlink(struct p9_fid *fid, char *name, char *symname, gid_t gid, int p9_client_create_dotl(struct p9_fid *ofid, char *name, u32 flags, u32 mode, gid_t gid, struct p9_qid *qid); int p9_client_clunk(struct p9_fid *fid); +int p9_client_fsync(struct p9_fid *fid); int p9_client_remove(struct p9_fid *fid); int p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, u32 count); -- cgit v1.2.2 From a099027c779068b834f335cfdc3f2bf10f531dd9 Mon Sep 17 00:00:00 2001 From: "M. Mohan Kumar" Date: Mon, 27 Sep 2010 11:34:24 +0530 Subject: 9p: Implement TLOCK Synopsis size[4] TLock tag[2] fid[4] flock[n] size[4] RLock tag[2] status[1] Description Tlock is used to acquire/release byte range posix locks on a file identified by given fid. The reply contains status of the lock request flock structure: type[1] - Type of lock: F_RDLCK, F_WRLCK, F_UNLCK flags[4] - Flags could be either of P9_LOCK_FLAGS_BLOCK - Blocked lock request, if there is a conflicting lock exists, wait for that lock to be released. P9_LOCK_FLAGS_RECLAIM - Reclaim lock request, used when client is trying to reclaim a lock after a server restrart (due to crash) start[8] - Starting offset for lock length[8] - Number of bytes to lock If length is 0, lock all bytes starting at the location 'start' through to the end of file pid[4] - PID of the process that wants to take lock client_id[4] - Unique client id status[1] - Status of the lock request, can be P9_LOCK_SUCCESS(0), P9_LOCK_BLOCKED(1), P9_LOCK_ERROR(2) or P9_LOCK_GRACE(3) P9_LOCK_SUCCESS - Request was successful P9_LOCK_BLOCKED - A conflicting lock is held by another process P9_LOCK_ERROR - Error while processing the lock request P9_LOCK_GRACE - Server is in grace period, it can't accept new lock requests in this period (except locks with P9_LOCK_FLAGS_RECLAIM flag set) Signed-off-by: M. Mohan Kumar Signed-off-by: Aneesh Kumar K.V Signed-off-by: Venkateswararao Jujjuri Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net/9p/client.h') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 8744e3ad4a07..d7dcb142e3bb 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -249,6 +249,7 @@ int p9_client_mknod_dotl(struct p9_fid *oldfid, char *name, int mode, dev_t rdev, gid_t gid, struct p9_qid *); int p9_client_mkdir_dotl(struct p9_fid *fid, char *name, int mode, gid_t gid, struct p9_qid *); +int p9_client_lock_dotl(struct p9_fid *fid, struct p9_flock *flock, u8 *status); struct p9_req_t *p9_tag_lookup(struct p9_client *, u16); void p9_client_cb(struct p9_client *c, struct p9_req_t *req); -- cgit v1.2.2 From 1d769cd192fc8c4097b1e2cd41fdee6ba3d1b2af Mon Sep 17 00:00:00 2001 From: "M. Mohan Kumar" Date: Mon, 27 Sep 2010 12:22:13 +0530 Subject: 9p: Implement TGETLOCK Synopsis size[4] TGetlock tag[2] fid[4] getlock[n] size[4] RGetlock tag[2] getlock[n] Description TGetlock is used to test for the existence of byte range posix locks on a file identified by given fid. The reply contains getlock structure. If the lock could be placed it returns F_UNLCK in type field of getlock structure. Otherwise it returns the details of the conflicting locks in the getlock structure getlock structure: type[1] - Type of lock: F_RDLCK, F_WRLCK start[8] - Starting offset for lock length[8] - Number of bytes to check for the lock If length is 0, check for lock in all bytes starting at the location 'start' through to the end of file pid[4] - PID of the process that wants to take lock/owns the task in case of reply client[4] - Client id of the system that owns the process which has the conflicting lock Signed-off-by: M. Mohan Kumar Signed-off-by: Aneesh Kumar K.V Signed-off-by: Venkateswararao Jujjuri Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net/9p/client.h') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index d7dcb142e3bb..127c9f2a9cb8 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -250,6 +250,7 @@ int p9_client_mknod_dotl(struct p9_fid *oldfid, char *name, int mode, int p9_client_mkdir_dotl(struct p9_fid *fid, char *name, int mode, gid_t gid, struct p9_qid *); int p9_client_lock_dotl(struct p9_fid *fid, struct p9_flock *flock, u8 *status); +int p9_client_getlock_dotl(struct p9_fid *fid, struct p9_getlock *fl); struct p9_req_t *p9_tag_lookup(struct p9_client *, u16); void p9_client_cb(struct p9_client *c, struct p9_req_t *req); -- cgit v1.2.2 From 329176cc2c50e63c580ddaabb385876db5af1360 Mon Sep 17 00:00:00 2001 From: "M. Mohan Kumar" Date: Tue, 28 Sep 2010 19:59:25 +0530 Subject: 9p: Implement TREADLINK operation for 9p2000.L Synopsis size[4] TReadlink tag[2] fid[4] size[4] RReadlink tag[2] target[s] Description Readlink is used to return the contents of the symoblic link referred by fid. Contents of symboic link is returned as a response. target[s] - Contents of the symbolic link referred by fid. Signed-off-by: M. Mohan Kumar Reviewed-by: Aneesh Kumar K.V Signed-off-by: Venkateswararao Jujjuri Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net/9p/client.h') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 127c9f2a9cb8..335b088e7672 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -262,5 +262,6 @@ int p9_is_proto_dotu(struct p9_client *clnt); int p9_is_proto_dotl(struct p9_client *clnt); struct p9_fid *p9_client_xattrwalk(struct p9_fid *, const char *, u64 *); int p9_client_xattrcreate(struct p9_fid *, const char *, u64, int); +int p9_client_readlink(struct p9_fid *fid, char **target); #endif /* NET_9P_CLIENT_H */ -- cgit v1.2.2 From b165d60145b717261a0234f989c442c2b68b6ec0 Mon Sep 17 00:00:00 2001 From: "Venkateswararao Jujjuri (JV)" Date: Fri, 22 Oct 2010 10:13:12 -0700 Subject: 9p: Add datasync to client side TFSYNC/RFSYNC for dotl SYNOPSIS size[4] Tfsync tag[2] fid[4] datasync[4] size[4] Rfsync tag[2] DESCRIPTION The Tfsync transaction transfers ("flushes") all modified in-core data of file identified by fid to the disk device (or other permanent storage device) where that file resides. If datasync flag is specified data will be fleshed but does not flush modified metadata unless that metadata is needed in order to allow a subsequent data retrieval to be correctly handled. Signed-off-by: Venkateswararao Jujjuri Signed-off-by: Eric Van Hensbergen --- include/net/9p/client.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/net/9p/client.h') diff --git a/include/net/9p/client.h b/include/net/9p/client.h index 335b088e7672..83ba6a4d58a3 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -229,7 +229,7 @@ int p9_client_symlink(struct p9_fid *fid, char *name, char *symname, gid_t gid, int p9_client_create_dotl(struct p9_fid *ofid, char *name, u32 flags, u32 mode, gid_t gid, struct p9_qid *qid); int p9_client_clunk(struct p9_fid *fid); -int p9_client_fsync(struct p9_fid *fid); +int p9_client_fsync(struct p9_fid *fid, int datasync); int p9_client_remove(struct p9_fid *fid); int p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, u32 count); -- cgit v1.2.2