#include "internal.h"
#include "afs_fs.h"
+static const struct afs_fid afs_zero_fid;
+
/*
* We need somewhere to discard into in case the server helpfully returns more
* than we asked for in FS.FetchData{,64}.
*/
static u8 afs_discard_buffer[64];
+static inline void afs_use_fs_server(struct afs_call *call, struct afs_cb_interest *cbi)
+{
+ call->cbi = afs_get_cb_interest(cbi);
+}
+
/*
* decode an AFSFid block
*/
const __be32 *bp = *_bp;
umode_t mode;
u64 data_version, size;
- u32 changed = 0; /* becomes non-zero if ctime-type changes seen */
+ bool changed = false;
kuid_t owner;
kgid_t group;
+ if (vnode)
+ write_seqlock(&vnode->cb_lock);
+
#define EXTRACT(DST) \
do { \
u32 x = ntohl(*bp++); \
- changed |= DST - x; \
+ if (DST != x) \
+ changed |= true; \
DST = x; \
} while (0)
EXTRACT(status->caller_access); /* call ticket dependent */
EXTRACT(status->anon_access);
EXTRACT(status->mode);
- EXTRACT(status->parent.vnode);
- EXTRACT(status->parent.unique);
+ bp++; /* parent.vnode */
+ bp++; /* parent.unique */
bp++; /* seg size */
status->mtime_client = ntohl(*bp++);
status->mtime_server = ntohl(*bp++);
status->mtime_client, status->mtime_server);
if (vnode) {
- status->parent.vid = vnode->fid.vid;
if (changed && !test_bit(AFS_VNODE_UNSET, &vnode->flags)) {
_debug("vnode changed");
i_size_write(&vnode->vfs_inode, size);
_debug("vnode modified %llx on {%x:%u}",
(unsigned long long) data_version,
vnode->fid.vid, vnode->fid.vnode);
- set_bit(AFS_VNODE_MODIFIED, &vnode->flags);
+ set_bit(AFS_VNODE_DIR_MODIFIED, &vnode->flags);
set_bit(AFS_VNODE_ZAP_DATA, &vnode->flags);
}
} else if (store_version) {
status->data_version = data_version;
}
+
+ if (vnode)
+ write_sequnlock(&vnode->cb_lock);
}
/*
* decode an AFSCallBack block
*/
-static void xdr_decode_AFSCallBack(const __be32 **_bp, struct afs_vnode *vnode)
+static void xdr_decode_AFSCallBack(struct afs_call *call,
+ struct afs_vnode *vnode,
+ const __be32 **_bp)
{
+ struct afs_cb_interest *old, *cbi = call->cbi;
const __be32 *bp = *_bp;
+ u32 cb_expiry;
+
+ write_seqlock(&vnode->cb_lock);
+
+ if (call->cb_break == (vnode->cb_break + cbi->server->cb_s_break)) {
+ vnode->cb_version = ntohl(*bp++);
+ cb_expiry = ntohl(*bp++);
+ vnode->cb_type = ntohl(*bp++);
+ vnode->cb_expires_at = cb_expiry + ktime_get_real_seconds();
+ old = vnode->cb_interest;
+ if (old != call->cbi) {
+ vnode->cb_interest = cbi;
+ cbi = old;
+ }
+ set_bit(AFS_VNODE_CB_PROMISED, &vnode->flags);
+ } else {
+ bp += 3;
+ }
- vnode->cb_version = ntohl(*bp++);
- vnode->cb_expiry = ntohl(*bp++);
- vnode->cb_type = ntohl(*bp++);
- vnode->cb_expires = vnode->cb_expiry + ktime_get_real_seconds();
+ write_sequnlock(&vnode->cb_lock);
+ call->cbi = cbi;
*_bp = bp;
}
*/
static int afs_deliver_fs_fetch_status(struct afs_call *call)
{
- struct afs_vnode *vnode = call->reply;
+ struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
- _enter("");
-
ret = afs_transfer_reply(call);
if (ret < 0)
return ret;
+ _enter("{%x:%u}", vnode->fid.vid, vnode->fid.vnode);
+
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, NULL);
- xdr_decode_AFSCallBack(&bp, vnode);
- if (call->reply2)
- xdr_decode_AFSVolSync(&bp, call->reply2);
+ xdr_decode_AFSCallBack(call, vnode, &bp);
+ if (call->reply[1])
+ xdr_decode_AFSVolSync(&bp, call->reply[1]);
_leave(" = 0 [done]");
return 0;
*/
static const struct afs_call_type afs_RXFSFetchStatus = {
.name = "FS.FetchStatus",
+ .op = afs_FS_FetchStatus,
.deliver = afs_deliver_fs_fetch_status,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
/*
* fetch the status information for a file
*/
-int afs_fs_fetch_file_status(struct afs_server *server,
- struct key *key,
- struct afs_vnode *vnode,
- struct afs_volsync *volsync,
- bool async)
+int afs_fs_fetch_file_status(struct afs_fs_cursor *fc, struct afs_volsync *volsync)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter(",%x,{%x:%u},,",
- key_serial(key), vnode->fid.vid, vnode->fid.vnode);
+ key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
- call = afs_alloc_flat_call(&afs_RXFSFetchStatus, 16, (21 + 3 + 6) * 4);
- if (!call)
+ call = afs_alloc_flat_call(net, &afs_RXFSFetchStatus, 16, (21 + 3 + 6) * 4);
+ if (!call) {
+ fc->ac.error = -ENOMEM;
return -ENOMEM;
+ }
- call->key = key;
- call->reply = vnode;
- call->reply2 = volsync;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = vnode;
+ call->reply[1] = volsync;
/* marshall the parameters */
bp = call->request;
bp[2] = htonl(vnode->fid.vnode);
bp[3] = htonl(vnode->fid.unique);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ call->cb_break = fc->cb_break;
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
*/
static int afs_deliver_fs_fetch_data(struct afs_call *call)
{
- struct afs_vnode *vnode = call->reply;
- struct afs_read *req = call->reply3;
+ struct afs_vnode *vnode = call->reply[0];
+ struct afs_read *req = call->reply[2];
const __be32 *bp;
unsigned int size;
void *buffer;
bp = call->buffer;
xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, NULL);
- xdr_decode_AFSCallBack(&bp, vnode);
- if (call->reply2)
- xdr_decode_AFSVolSync(&bp, call->reply2);
+ xdr_decode_AFSCallBack(call, vnode, &bp);
+ if (call->reply[1])
+ xdr_decode_AFSVolSync(&bp, call->reply[1]);
call->offset = 0;
call->unmarshall++;
static void afs_fetch_data_destructor(struct afs_call *call)
{
- struct afs_read *req = call->reply3;
+ struct afs_read *req = call->reply[2];
afs_put_read(req);
afs_flat_call_destructor(call);
*/
static const struct afs_call_type afs_RXFSFetchData = {
.name = "FS.FetchData",
+ .op = afs_FS_FetchData,
.deliver = afs_deliver_fs_fetch_data,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_fetch_data_destructor,
};
static const struct afs_call_type afs_RXFSFetchData64 = {
.name = "FS.FetchData64",
+ .op = afs_FS_FetchData64,
.deliver = afs_deliver_fs_fetch_data,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_fetch_data_destructor,
};
/*
* fetch data from a very large file
*/
-static int afs_fs_fetch_data64(struct afs_server *server,
- struct key *key,
- struct afs_vnode *vnode,
- struct afs_read *req,
- bool async)
+static int afs_fs_fetch_data64(struct afs_fs_cursor *fc, struct afs_read *req)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter("");
- call = afs_alloc_flat_call(&afs_RXFSFetchData64, 32, (21 + 3 + 6) * 4);
+ call = afs_alloc_flat_call(net, &afs_RXFSFetchData64, 32, (21 + 3 + 6) * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->reply2 = NULL; /* volsync */
- call->reply3 = req;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
- call->operation_ID = FSFETCHDATA64;
+ call->key = fc->key;
+ call->reply[0] = vnode;
+ call->reply[1] = NULL; /* volsync */
+ call->reply[2] = req;
/* marshall the parameters */
bp = call->request;
bp[7] = htonl(lower_32_bits(req->len));
atomic_inc(&req->usage);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ call->cb_break = fc->cb_break;
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* fetch data from a file
*/
-int afs_fs_fetch_data(struct afs_server *server,
- struct key *key,
- struct afs_vnode *vnode,
- struct afs_read *req,
- bool async)
+int afs_fs_fetch_data(struct afs_fs_cursor *fc, struct afs_read *req)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
if (upper_32_bits(req->pos) ||
upper_32_bits(req->len) ||
upper_32_bits(req->pos + req->len))
- return afs_fs_fetch_data64(server, key, vnode, req, async);
+ return afs_fs_fetch_data64(fc, req);
_enter("");
- call = afs_alloc_flat_call(&afs_RXFSFetchData, 24, (21 + 3 + 6) * 4);
+ call = afs_alloc_flat_call(net, &afs_RXFSFetchData, 24, (21 + 3 + 6) * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->reply2 = NULL; /* volsync */
- call->reply3 = req;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
- call->operation_ID = FSFETCHDATA;
+ call->key = fc->key;
+ call->reply[0] = vnode;
+ call->reply[1] = NULL; /* volsync */
+ call->reply[2] = req;
/* marshall the parameters */
bp = call->request;
bp[5] = htonl(lower_32_bits(req->len));
atomic_inc(&req->usage);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
-}
-
-/*
- * deliver reply data to an FS.GiveUpCallBacks
- */
-static int afs_deliver_fs_give_up_callbacks(struct afs_call *call)
-{
- _enter("");
-
- /* shouldn't be any reply data */
- return afs_extract_data(call, NULL, 0, false);
-}
-
-/*
- * FS.GiveUpCallBacks operation type
- */
-static const struct afs_call_type afs_RXFSGiveUpCallBacks = {
- .name = "FS.GiveUpCallBacks",
- .deliver = afs_deliver_fs_give_up_callbacks,
- .abort_to_error = afs_abort_to_error,
- .destructor = afs_flat_call_destructor,
-};
-
-/*
- * give up a set of callbacks
- * - the callbacks are held in the server->cb_break ring
- */
-int afs_fs_give_up_callbacks(struct afs_server *server,
- bool async)
-{
- struct afs_call *call;
- size_t ncallbacks;
- __be32 *bp, *tp;
- int loop;
-
- ncallbacks = CIRC_CNT(server->cb_break_head, server->cb_break_tail,
- ARRAY_SIZE(server->cb_break));
-
- _enter("{%zu},", ncallbacks);
-
- if (ncallbacks == 0)
- return 0;
- if (ncallbacks > AFSCBMAX)
- ncallbacks = AFSCBMAX;
-
- _debug("break %zu callbacks", ncallbacks);
-
- call = afs_alloc_flat_call(&afs_RXFSGiveUpCallBacks,
- 12 + ncallbacks * 6 * 4, 0);
- if (!call)
- return -ENOMEM;
-
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
-
- /* marshall the parameters */
- bp = call->request;
- tp = bp + 2 + ncallbacks * 3;
- *bp++ = htonl(FSGIVEUPCALLBACKS);
- *bp++ = htonl(ncallbacks);
- *tp++ = htonl(ncallbacks);
-
- atomic_sub(ncallbacks, &server->cb_break_n);
- for (loop = ncallbacks; loop > 0; loop--) {
- struct afs_callback *cb =
- &server->cb_break[server->cb_break_tail];
-
- *bp++ = htonl(cb->fid.vid);
- *bp++ = htonl(cb->fid.vnode);
- *bp++ = htonl(cb->fid.unique);
- *tp++ = htonl(cb->version);
- *tp++ = htonl(cb->expiry);
- *tp++ = htonl(cb->type);
- smp_mb();
- server->cb_break_tail =
- (server->cb_break_tail + 1) &
- (ARRAY_SIZE(server->cb_break) - 1);
- }
-
- ASSERT(ncallbacks > 0);
- wake_up_nr(&server->cb_break_waitq, ncallbacks);
-
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ call->cb_break = fc->cb_break;
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
*/
static int afs_deliver_fs_create_vnode(struct afs_call *call)
{
- struct afs_vnode *vnode = call->reply;
+ struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
- xdr_decode_AFSFid(&bp, call->reply2);
- xdr_decode_AFSFetchStatus(&bp, call->reply3, NULL, NULL);
+ xdr_decode_AFSFid(&bp, call->reply[1]);
+ xdr_decode_AFSFetchStatus(&bp, call->reply[2], NULL, NULL);
xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, NULL);
- xdr_decode_AFSCallBack_raw(&bp, call->reply4);
- /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+ xdr_decode_AFSCallBack_raw(&bp, call->reply[3]);
+ /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
return 0;
/*
* FS.CreateFile and FS.MakeDir operation type
*/
-static const struct afs_call_type afs_RXFSCreateXXXX = {
- .name = "FS.CreateXXXX",
+static const struct afs_call_type afs_RXFSCreateFile = {
+ .name = "FS.CreateFile",
+ .op = afs_FS_CreateFile,
+ .deliver = afs_deliver_fs_create_vnode,
+ .destructor = afs_flat_call_destructor,
+};
+
+static const struct afs_call_type afs_RXFSMakeDir = {
+ .name = "FS.MakeDir",
+ .op = afs_FS_MakeDir,
.deliver = afs_deliver_fs_create_vnode,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
/*
* create a file or make a directory
*/
-int afs_fs_create(struct afs_server *server,
- struct key *key,
- struct afs_vnode *vnode,
+int afs_fs_create(struct afs_fs_cursor *fc,
const char *name,
umode_t mode,
struct afs_fid *newfid,
struct afs_file_status *newstatus,
- struct afs_callback *newcb,
- bool async)
+ struct afs_callback *newcb)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
size_t namesz, reqsz, padsz;
__be32 *bp;
padsz = (4 - (namesz & 3)) & 3;
reqsz = (5 * 4) + namesz + padsz + (6 * 4);
- call = afs_alloc_flat_call(&afs_RXFSCreateXXXX, reqsz,
- (3 + 21 + 21 + 3 + 6) * 4);
+ call = afs_alloc_flat_call(
+ net, S_ISDIR(mode) ? &afs_RXFSMakeDir : &afs_RXFSCreateFile,
+ reqsz, (3 + 21 + 21 + 3 + 6) * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->reply2 = newfid;
- call->reply3 = newstatus;
- call->reply4 = newcb;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = vnode;
+ call->reply[1] = newfid;
+ call->reply[2] = newstatus;
+ call->reply[3] = newcb;
/* marshall the parameters */
bp = call->request;
*bp++ = htonl(mode & S_IALLUGO); /* unix mode */
*bp++ = 0; /* segment size */
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
*/
static int afs_deliver_fs_remove(struct afs_call *call)
{
- struct afs_vnode *vnode = call->reply;
+ struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, NULL);
- /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+ /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
return 0;
/*
* FS.RemoveDir/FS.RemoveFile operation type
*/
-static const struct afs_call_type afs_RXFSRemoveXXXX = {
- .name = "FS.RemoveXXXX",
+static const struct afs_call_type afs_RXFSRemoveFile = {
+ .name = "FS.RemoveFile",
+ .op = afs_FS_RemoveFile,
+ .deliver = afs_deliver_fs_remove,
+ .destructor = afs_flat_call_destructor,
+};
+
+static const struct afs_call_type afs_RXFSRemoveDir = {
+ .name = "FS.RemoveDir",
+ .op = afs_FS_RemoveDir,
.deliver = afs_deliver_fs_remove,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
/*
* remove a file or directory
*/
-int afs_fs_remove(struct afs_server *server,
- struct key *key,
- struct afs_vnode *vnode,
- const char *name,
- bool isdir,
- bool async)
+int afs_fs_remove(struct afs_fs_cursor *fc, const char *name, bool isdir)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
size_t namesz, reqsz, padsz;
__be32 *bp;
padsz = (4 - (namesz & 3)) & 3;
reqsz = (5 * 4) + namesz + padsz;
- call = afs_alloc_flat_call(&afs_RXFSRemoveXXXX, reqsz, (21 + 6) * 4);
+ call = afs_alloc_flat_call(
+ net, isdir ? &afs_RXFSRemoveDir : &afs_RXFSRemoveFile,
+ reqsz, (21 + 6) * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = vnode;
/* marshall the parameters */
bp = call->request;
bp = (void *) bp + padsz;
}
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
*/
static int afs_deliver_fs_link(struct afs_call *call)
{
- struct afs_vnode *dvnode = call->reply, *vnode = call->reply2;
+ struct afs_vnode *dvnode = call->reply[0], *vnode = call->reply[1];
const __be32 *bp;
int ret;
bp = call->buffer;
xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, NULL);
xdr_decode_AFSFetchStatus(&bp, &dvnode->status, dvnode, NULL);
- /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+ /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
return 0;
*/
static const struct afs_call_type afs_RXFSLink = {
.name = "FS.Link",
+ .op = afs_FS_Link,
.deliver = afs_deliver_fs_link,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
/*
* make a hard link
*/
-int afs_fs_link(struct afs_server *server,
- struct key *key,
- struct afs_vnode *dvnode,
- struct afs_vnode *vnode,
- const char *name,
- bool async)
+int afs_fs_link(struct afs_fs_cursor *fc, struct afs_vnode *vnode,
+ const char *name)
{
+ struct afs_vnode *dvnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
size_t namesz, reqsz, padsz;
__be32 *bp;
padsz = (4 - (namesz & 3)) & 3;
reqsz = (5 * 4) + namesz + padsz + (3 * 4);
- call = afs_alloc_flat_call(&afs_RXFSLink, reqsz, (21 + 21 + 6) * 4);
+ call = afs_alloc_flat_call(net, &afs_RXFSLink, reqsz, (21 + 21 + 6) * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = dvnode;
- call->reply2 = vnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = dvnode;
+ call->reply[1] = vnode;
/* marshall the parameters */
bp = call->request;
*bp++ = htonl(vnode->fid.vnode);
*bp++ = htonl(vnode->fid.unique);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
*/
static int afs_deliver_fs_symlink(struct afs_call *call)
{
- struct afs_vnode *vnode = call->reply;
+ struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
- xdr_decode_AFSFid(&bp, call->reply2);
- xdr_decode_AFSFetchStatus(&bp, call->reply3, NULL, NULL);
+ xdr_decode_AFSFid(&bp, call->reply[1]);
+ xdr_decode_AFSFetchStatus(&bp, call->reply[2], NULL, NULL);
xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, NULL);
- /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+ /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
return 0;
*/
static const struct afs_call_type afs_RXFSSymlink = {
.name = "FS.Symlink",
+ .op = afs_FS_Symlink,
.deliver = afs_deliver_fs_symlink,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
/*
* create a symbolic link
*/
-int afs_fs_symlink(struct afs_server *server,
- struct key *key,
- struct afs_vnode *vnode,
+int afs_fs_symlink(struct afs_fs_cursor *fc,
const char *name,
const char *contents,
struct afs_fid *newfid,
- struct afs_file_status *newstatus,
- bool async)
+ struct afs_file_status *newstatus)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
size_t namesz, reqsz, padsz, c_namesz, c_padsz;
__be32 *bp;
reqsz = (6 * 4) + namesz + padsz + c_namesz + c_padsz + (6 * 4);
- call = afs_alloc_flat_call(&afs_RXFSSymlink, reqsz,
+ call = afs_alloc_flat_call(net, &afs_RXFSSymlink, reqsz,
(3 + 21 + 21 + 6) * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->reply2 = newfid;
- call->reply3 = newstatus;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = vnode;
+ call->reply[1] = newfid;
+ call->reply[2] = newstatus;
/* marshall the parameters */
bp = call->request;
*bp++ = htonl(S_IRWXUGO); /* unix mode */
*bp++ = 0; /* segment size */
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
*/
static int afs_deliver_fs_rename(struct afs_call *call)
{
- struct afs_vnode *orig_dvnode = call->reply, *new_dvnode = call->reply2;
+ struct afs_vnode *orig_dvnode = call->reply[0], *new_dvnode = call->reply[1];
const __be32 *bp;
int ret;
if (new_dvnode != orig_dvnode)
xdr_decode_AFSFetchStatus(&bp, &new_dvnode->status, new_dvnode,
NULL);
- /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+ /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
return 0;
*/
static const struct afs_call_type afs_RXFSRename = {
.name = "FS.Rename",
+ .op = afs_FS_Rename,
.deliver = afs_deliver_fs_rename,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
/*
* create a symbolic link
*/
-int afs_fs_rename(struct afs_server *server,
- struct key *key,
- struct afs_vnode *orig_dvnode,
+int afs_fs_rename(struct afs_fs_cursor *fc,
const char *orig_name,
struct afs_vnode *new_dvnode,
- const char *new_name,
- bool async)
+ const char *new_name)
{
+ struct afs_vnode *orig_dvnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(orig_dvnode);
size_t reqsz, o_namesz, o_padsz, n_namesz, n_padsz;
__be32 *bp;
(3 * 4) +
4 + n_namesz + n_padsz;
- call = afs_alloc_flat_call(&afs_RXFSRename, reqsz, (21 + 21 + 6) * 4);
+ call = afs_alloc_flat_call(net, &afs_RXFSRename, reqsz, (21 + 21 + 6) * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = orig_dvnode;
- call->reply2 = new_dvnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = orig_dvnode;
+ call->reply[1] = new_dvnode;
/* marshall the parameters */
bp = call->request;
bp = (void *) bp + n_padsz;
}
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &orig_dvnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
*/
static int afs_deliver_fs_store_data(struct afs_call *call)
{
- struct afs_vnode *vnode = call->reply;
+ struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
bp = call->buffer;
xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode,
&call->store_version);
- /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+ /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
afs_pages_written_back(vnode, call);
*/
static const struct afs_call_type afs_RXFSStoreData = {
.name = "FS.StoreData",
+ .op = afs_FS_StoreData,
.deliver = afs_deliver_fs_store_data,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
static const struct afs_call_type afs_RXFSStoreData64 = {
.name = "FS.StoreData64",
+ .op = afs_FS_StoreData64,
.deliver = afs_deliver_fs_store_data,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
/*
* store a set of pages to a very large file
*/
-static int afs_fs_store_data64(struct afs_server *server,
- struct afs_writeback *wb,
+static int afs_fs_store_data64(struct afs_fs_cursor *fc,
+ struct address_space *mapping,
pgoff_t first, pgoff_t last,
unsigned offset, unsigned to,
- loff_t size, loff_t pos, loff_t i_size,
- bool async)
+ loff_t size, loff_t pos, loff_t i_size)
{
- struct afs_vnode *vnode = wb->vnode;
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter(",%x,{%x:%u},,",
- key_serial(wb->key), vnode->fid.vid, vnode->fid.vnode);
+ key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
- call = afs_alloc_flat_call(&afs_RXFSStoreData64,
+ call = afs_alloc_flat_call(net, &afs_RXFSStoreData64,
(4 + 6 + 3 * 2) * 4,
(21 + 6) * 4);
if (!call)
return -ENOMEM;
- call->wb = wb;
- call->key = wb->key;
- call->reply = vnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
- call->mapping = vnode->vfs_inode.i_mapping;
+ call->key = fc->key;
+ call->mapping = mapping;
+ call->reply[0] = vnode;
call->first = first;
call->last = last;
call->first_offset = offset;
*bp++ = htonl(i_size >> 32);
*bp++ = htonl((u32) i_size);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* store a set of pages
*/
-int afs_fs_store_data(struct afs_server *server, struct afs_writeback *wb,
+int afs_fs_store_data(struct afs_fs_cursor *fc, struct address_space *mapping,
pgoff_t first, pgoff_t last,
- unsigned offset, unsigned to,
- bool async)
+ unsigned offset, unsigned to)
{
- struct afs_vnode *vnode = wb->vnode;
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
loff_t size, pos, i_size;
__be32 *bp;
_enter(",%x,{%x:%u},,",
- key_serial(wb->key), vnode->fid.vid, vnode->fid.vnode);
+ key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
size = (loff_t)to - (loff_t)offset;
if (first != last)
(unsigned long long) i_size);
if (pos >> 32 || i_size >> 32 || size >> 32 || (pos + size) >> 32)
- return afs_fs_store_data64(server, wb, first, last, offset, to,
- size, pos, i_size, async);
+ return afs_fs_store_data64(fc, mapping, first, last, offset, to,
+ size, pos, i_size);
- call = afs_alloc_flat_call(&afs_RXFSStoreData,
+ call = afs_alloc_flat_call(net, &afs_RXFSStoreData,
(4 + 6 + 3) * 4,
(21 + 6) * 4);
if (!call)
return -ENOMEM;
- call->wb = wb;
- call->key = wb->key;
- call->reply = vnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
- call->mapping = vnode->vfs_inode.i_mapping;
+ call->key = fc->key;
+ call->mapping = mapping;
+ call->reply[0] = vnode;
call->first = first;
call->last = last;
call->first_offset = offset;
*bp++ = htonl(size);
*bp++ = htonl(i_size);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
static int afs_deliver_fs_store_status(struct afs_call *call)
{
afs_dataversion_t *store_version;
- struct afs_vnode *vnode = call->reply;
+ struct afs_vnode *vnode = call->reply[0];
const __be32 *bp;
int ret;
bp = call->buffer;
xdr_decode_AFSFetchStatus(&bp, &vnode->status, vnode, store_version);
- /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+ /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
return 0;
*/
static const struct afs_call_type afs_RXFSStoreStatus = {
.name = "FS.StoreStatus",
+ .op = afs_FS_StoreStatus,
.deliver = afs_deliver_fs_store_status,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
static const struct afs_call_type afs_RXFSStoreData_as_Status = {
.name = "FS.StoreData",
+ .op = afs_FS_StoreData,
.deliver = afs_deliver_fs_store_status,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
static const struct afs_call_type afs_RXFSStoreData64_as_Status = {
.name = "FS.StoreData64",
+ .op = afs_FS_StoreData64,
.deliver = afs_deliver_fs_store_status,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
* set the attributes on a very large file, using FS.StoreData rather than
* FS.StoreStatus so as to alter the file size also
*/
-static int afs_fs_setattr_size64(struct afs_server *server, struct key *key,
- struct afs_vnode *vnode, struct iattr *attr,
- bool async)
+static int afs_fs_setattr_size64(struct afs_fs_cursor *fc, struct iattr *attr)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter(",%x,{%x:%u},,",
- key_serial(key), vnode->fid.vid, vnode->fid.vnode);
+ key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
ASSERT(attr->ia_valid & ATTR_SIZE);
- call = afs_alloc_flat_call(&afs_RXFSStoreData64_as_Status,
+ call = afs_alloc_flat_call(net, &afs_RXFSStoreData64_as_Status,
(4 + 6 + 3 * 2) * 4,
(21 + 6) * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = vnode;
call->store_version = vnode->status.data_version + 1;
- call->operation_ID = FSSTOREDATA;
/* marshall the parameters */
bp = call->request;
*bp++ = htonl(attr->ia_size >> 32); /* new file length */
*bp++ = htonl((u32) attr->ia_size);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* set the attributes on a file, using FS.StoreData rather than FS.StoreStatus
* so as to alter the file size also
*/
-static int afs_fs_setattr_size(struct afs_server *server, struct key *key,
- struct afs_vnode *vnode, struct iattr *attr,
- bool async)
+static int afs_fs_setattr_size(struct afs_fs_cursor *fc, struct iattr *attr)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter(",%x,{%x:%u},,",
- key_serial(key), vnode->fid.vid, vnode->fid.vnode);
+ key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
ASSERT(attr->ia_valid & ATTR_SIZE);
if (attr->ia_size >> 32)
- return afs_fs_setattr_size64(server, key, vnode, attr,
- async);
+ return afs_fs_setattr_size64(fc, attr);
- call = afs_alloc_flat_call(&afs_RXFSStoreData_as_Status,
+ call = afs_alloc_flat_call(net, &afs_RXFSStoreData_as_Status,
(4 + 6 + 3) * 4,
(21 + 6) * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = vnode;
call->store_version = vnode->status.data_version + 1;
- call->operation_ID = FSSTOREDATA;
/* marshall the parameters */
bp = call->request;
*bp++ = 0; /* size of write */
*bp++ = htonl(attr->ia_size); /* new file length */
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* set the attributes on a file, using FS.StoreData if there's a change in file
* size, and FS.StoreStatus otherwise
*/
-int afs_fs_setattr(struct afs_server *server, struct key *key,
- struct afs_vnode *vnode, struct iattr *attr,
- bool async)
+int afs_fs_setattr(struct afs_fs_cursor *fc, struct iattr *attr)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
if (attr->ia_valid & ATTR_SIZE)
- return afs_fs_setattr_size(server, key, vnode, attr,
- async);
+ return afs_fs_setattr_size(fc, attr);
_enter(",%x,{%x:%u},,",
- key_serial(key), vnode->fid.vid, vnode->fid.vnode);
+ key_serial(fc->key), vnode->fid.vid, vnode->fid.vnode);
- call = afs_alloc_flat_call(&afs_RXFSStoreStatus,
+ call = afs_alloc_flat_call(net, &afs_RXFSStoreStatus,
(4 + 6) * 4,
(21 + 6) * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
- call->operation_ID = FSSTORESTATUS;
+ call->key = fc->key;
+ call->reply[0] = vnode;
/* marshall the parameters */
bp = call->request;
xdr_encode_AFS_StoreStatus(&bp, attr);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
return ret;
bp = call->buffer;
- xdr_decode_AFSFetchVolumeStatus(&bp, call->reply2);
+ xdr_decode_AFSFetchVolumeStatus(&bp, call->reply[1]);
call->offset = 0;
call->unmarshall++;
case 3:
_debug("extract volname");
if (call->count > 0) {
- ret = afs_extract_data(call, call->reply3,
+ ret = afs_extract_data(call, call->reply[2],
call->count, true);
if (ret < 0)
return ret;
}
- p = call->reply3;
+ p = call->reply[2];
p[call->count] = 0;
_debug("volname '%s'", p);
case 6:
_debug("extract offline");
if (call->count > 0) {
- ret = afs_extract_data(call, call->reply3,
+ ret = afs_extract_data(call, call->reply[2],
call->count, true);
if (ret < 0)
return ret;
}
- p = call->reply3;
+ p = call->reply[2];
p[call->count] = 0;
_debug("offline '%s'", p);
case 9:
_debug("extract motd");
if (call->count > 0) {
- ret = afs_extract_data(call, call->reply3,
+ ret = afs_extract_data(call, call->reply[2],
call->count, true);
if (ret < 0)
return ret;
}
- p = call->reply3;
+ p = call->reply[2];
p[call->count] = 0;
_debug("motd '%s'", p);
*/
static void afs_get_volume_status_call_destructor(struct afs_call *call)
{
- kfree(call->reply3);
- call->reply3 = NULL;
+ kfree(call->reply[2]);
+ call->reply[2] = NULL;
afs_flat_call_destructor(call);
}
*/
static const struct afs_call_type afs_RXFSGetVolumeStatus = {
.name = "FS.GetVolumeStatus",
+ .op = afs_FS_GetVolumeStatus,
.deliver = afs_deliver_fs_get_volume_status,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_get_volume_status_call_destructor,
};
/*
* fetch the status of a volume
*/
-int afs_fs_get_volume_status(struct afs_server *server,
- struct key *key,
- struct afs_vnode *vnode,
- struct afs_volume_status *vs,
- bool async)
+int afs_fs_get_volume_status(struct afs_fs_cursor *fc,
+ struct afs_volume_status *vs)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
void *tmpbuf;
if (!tmpbuf)
return -ENOMEM;
- call = afs_alloc_flat_call(&afs_RXFSGetVolumeStatus, 2 * 4, 12 * 4);
+ call = afs_alloc_flat_call(net, &afs_RXFSGetVolumeStatus, 2 * 4, 12 * 4);
if (!call) {
kfree(tmpbuf);
return -ENOMEM;
}
- call->key = key;
- call->reply = vnode;
- call->reply2 = vs;
- call->reply3 = tmpbuf;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = vnode;
+ call->reply[1] = vs;
+ call->reply[2] = tmpbuf;
/* marshall the parameters */
bp = call->request;
bp[0] = htonl(FSGETVOLUMESTATUS);
bp[1] = htonl(vnode->fid.vid);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
/* unmarshall the reply once we've received all of it */
bp = call->buffer;
- /* xdr_decode_AFSVolSync(&bp, call->replyX); */
+ /* xdr_decode_AFSVolSync(&bp, call->reply[X]); */
_leave(" = 0 [done]");
return 0;
*/
static const struct afs_call_type afs_RXFSSetLock = {
.name = "FS.SetLock",
+ .op = afs_FS_SetLock,
.deliver = afs_deliver_fs_xxxx_lock,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
*/
static const struct afs_call_type afs_RXFSExtendLock = {
.name = "FS.ExtendLock",
+ .op = afs_FS_ExtendLock,
.deliver = afs_deliver_fs_xxxx_lock,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
*/
static const struct afs_call_type afs_RXFSReleaseLock = {
.name = "FS.ReleaseLock",
+ .op = afs_FS_ReleaseLock,
.deliver = afs_deliver_fs_xxxx_lock,
- .abort_to_error = afs_abort_to_error,
.destructor = afs_flat_call_destructor,
};
/*
- * get a lock on a file
+ * Set a lock on a file
*/
-int afs_fs_set_lock(struct afs_server *server,
- struct key *key,
- struct afs_vnode *vnode,
- afs_lock_type_t type,
- bool async)
+int afs_fs_set_lock(struct afs_fs_cursor *fc, afs_lock_type_t type)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter("");
- call = afs_alloc_flat_call(&afs_RXFSSetLock, 5 * 4, 6 * 4);
+ call = afs_alloc_flat_call(net, &afs_RXFSSetLock, 5 * 4, 6 * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = vnode;
/* marshall the parameters */
bp = call->request;
*bp++ = htonl(vnode->fid.unique);
*bp++ = htonl(type);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* extend a lock on a file
*/
-int afs_fs_extend_lock(struct afs_server *server,
- struct key *key,
- struct afs_vnode *vnode,
- bool async)
+int afs_fs_extend_lock(struct afs_fs_cursor *fc)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter("");
- call = afs_alloc_flat_call(&afs_RXFSExtendLock, 4 * 4, 6 * 4);
+ call = afs_alloc_flat_call(net, &afs_RXFSExtendLock, 4 * 4, 6 * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = vnode;
/* marshall the parameters */
bp = call->request;
*bp++ = htonl(vnode->fid.vnode);
*bp++ = htonl(vnode->fid.unique);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
}
/*
* release a lock on a file
*/
-int afs_fs_release_lock(struct afs_server *server,
- struct key *key,
- struct afs_vnode *vnode,
- bool async)
+int afs_fs_release_lock(struct afs_fs_cursor *fc)
{
+ struct afs_vnode *vnode = fc->vnode;
struct afs_call *call;
+ struct afs_net *net = afs_v2net(vnode);
__be32 *bp;
_enter("");
- call = afs_alloc_flat_call(&afs_RXFSReleaseLock, 4 * 4, 6 * 4);
+ call = afs_alloc_flat_call(net, &afs_RXFSReleaseLock, 4 * 4, 6 * 4);
if (!call)
return -ENOMEM;
- call->key = key;
- call->reply = vnode;
- call->service_id = FS_SERVICE;
- call->port = htons(AFS_FS_PORT);
+ call->key = fc->key;
+ call->reply[0] = vnode;
/* marshall the parameters */
bp = call->request;
*bp++ = htonl(vnode->fid.vnode);
*bp++ = htonl(vnode->fid.unique);
- return afs_make_call(&server->addr, call, GFP_NOFS, async);
+ afs_use_fs_server(call, fc->cbi);
+ trace_afs_make_fs_call(call, &vnode->fid);
+ return afs_make_call(&fc->ac, call, GFP_NOFS, false);
+}
+
+/*
+ * Deliver reply data to an FS.GiveUpAllCallBacks operation.
+ */
+static int afs_deliver_fs_give_up_all_callbacks(struct afs_call *call)
+{
+ return afs_transfer_reply(call);
+}
+
+/*
+ * FS.GiveUpAllCallBacks operation type
+ */
+static const struct afs_call_type afs_RXFSGiveUpAllCallBacks = {
+ .name = "FS.GiveUpAllCallBacks",
+ .op = afs_FS_GiveUpAllCallBacks,
+ .deliver = afs_deliver_fs_give_up_all_callbacks,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * Flush all the callbacks we have on a server.
+ */
+int afs_fs_give_up_all_callbacks(struct afs_net *net,
+ struct afs_server *server,
+ struct afs_addr_cursor *ac,
+ struct key *key)
+{
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter("");
+
+ call = afs_alloc_flat_call(net, &afs_RXFSGiveUpAllCallBacks, 1 * 4, 0);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSGIVEUPALLCALLBACKS);
+
+ /* Can't take a ref on server */
+ return afs_make_call(ac, call, GFP_NOFS, false);
+}
+
+/*
+ * Deliver reply data to an FS.GetCapabilities operation.
+ */
+static int afs_deliver_fs_get_capabilities(struct afs_call *call)
+{
+ u32 count;
+ int ret;
+
+ _enter("{%u,%zu/%u}", call->unmarshall, call->offset, call->count);
+
+again:
+ switch (call->unmarshall) {
+ case 0:
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* Extract the capabilities word count */
+ case 1:
+ ret = afs_extract_data(call, &call->tmp,
+ 1 * sizeof(__be32),
+ true);
+ if (ret < 0)
+ return ret;
+
+ count = ntohl(call->tmp);
+
+ call->count = count;
+ call->count2 = count;
+ call->offset = 0;
+ call->unmarshall++;
+
+ /* Extract capabilities words */
+ case 2:
+ count = min(call->count, 16U);
+ ret = afs_extract_data(call, call->buffer,
+ count * sizeof(__be32),
+ call->count > 16);
+ if (ret < 0)
+ return ret;
+
+ /* TODO: Examine capabilities */
+
+ call->count -= count;
+ if (call->count > 0)
+ goto again;
+ call->offset = 0;
+ call->unmarshall++;
+ break;
+ }
+
+ _leave(" = 0 [done]");
+ return 0;
+}
+
+/*
+ * FS.GetCapabilities operation type
+ */
+static const struct afs_call_type afs_RXFSGetCapabilities = {
+ .name = "FS.GetCapabilities",
+ .op = afs_FS_GetCapabilities,
+ .deliver = afs_deliver_fs_get_capabilities,
+ .destructor = afs_flat_call_destructor,
+};
+
+/*
+ * Probe a fileserver for the capabilities that it supports. This can
+ * return up to 196 words.
+ */
+int afs_fs_get_capabilities(struct afs_net *net,
+ struct afs_server *server,
+ struct afs_addr_cursor *ac,
+ struct key *key)
+{
+ struct afs_call *call;
+ __be32 *bp;
+
+ _enter("");
+
+ call = afs_alloc_flat_call(net, &afs_RXFSGetCapabilities, 1 * 4, 16 * 4);
+ if (!call)
+ return -ENOMEM;
+
+ call->key = key;
+
+ /* marshall the parameters */
+ bp = call->request;
+ *bp++ = htonl(FSGETCAPABILITIES);
+
+ /* Can't take a ref on server */
+ trace_afs_make_fs_call(call, NULL);
+ return afs_make_call(ac, call, GFP_NOFS, false);
}
git.samba.org / sfrench / cifs-2.6.git / blobdiff