diff --git a/fs/afs/cmservice.c b/fs/afs/cmservice.c
index b86195e4dc6cd657485eb01f62d103b4e06f7008..ff3994a6be23bc6e439ed8c1ddc9c4da70914323 100644
--- a/fs/afs/cmservice.c
+++ b/fs/afs/cmservice.c
@@ -342,14 +342,14 @@ static int afs_deliver_cb_callback(struct afs_call *call)
if (call->count2 != call->count && call->count2 != 0)
return afs_protocol_error(call, -EBADMSG,
afs_eproto_cb_count);
- call->_iter = &call->iter;
- iov_iter_discard(&call->iter, READ, call->count2 * 3 * 4);
+ call->iter = &call->def_iter;
+ iov_iter_discard(&call->def_iter, READ, call->count2 * 3 * 4);
call->unmarshall++;
/* Fall through */
case 4:
_debug("extract discard %zu/%u",
- iov_iter_count(&call->iter), call->count2 * 3 * 4);
+ iov_iter_count(call->iter), call->count2 * 3 * 4);
ret = afs_extract_data(call, false);
if (ret < 0)
diff --git a/fs/afs/dir_edit.c b/fs/afs/dir_edit.c
index d4fbe5f85f1b28674d0a60cbcc5a252e379dde81..b108528bf010dc56a0bde88d7451408822f64777 100644
--- a/fs/afs/dir_edit.c
+++ b/fs/afs/dir_edit.c
@@ -68,13 +68,11 @@ static int afs_find_contig_bits(union afs_xdr_dir_block *block, unsigned int nr_
static void afs_set_contig_bits(union afs_xdr_dir_block *block,
int bit, unsigned int nr_slots)
{
- u64 mask, before, after;
+ u64 mask;
mask = (1 << nr_slots) - 1;
mask <<= bit;
- before = *(u64 *)block->hdr.bitmap;
-
block->hdr.bitmap[0] |= (u8)(mask >> 0 * 8);
block->hdr.bitmap[1] |= (u8)(mask >> 1 * 8);
block->hdr.bitmap[2] |= (u8)(mask >> 2 * 8);
@@ -83,8 +81,6 @@ static void afs_set_contig_bits(union afs_xdr_dir_block *block,
block->hdr.bitmap[5] |= (u8)(mask >> 5 * 8);
block->hdr.bitmap[6] |= (u8)(mask >> 6 * 8);
block->hdr.bitmap[7] |= (u8)(mask >> 7 * 8);
-
- after = *(u64 *)block->hdr.bitmap;
}
/*
@@ -93,13 +89,11 @@ static void afs_set_contig_bits(union afs_xdr_dir_block *block,
static void afs_clear_contig_bits(union afs_xdr_dir_block *block,
int bit, unsigned int nr_slots)
{
- u64 mask, before, after;
+ u64 mask;
mask = (1 << nr_slots) - 1;
mask <<= bit;
- before = *(u64 *)block->hdr.bitmap;
-
block->hdr.bitmap[0] &= ~(u8)(mask >> 0 * 8);
block->hdr.bitmap[1] &= ~(u8)(mask >> 1 * 8);
block->hdr.bitmap[2] &= ~(u8)(mask >> 2 * 8);
@@ -108,8 +102,6 @@ static void afs_clear_contig_bits(union afs_xdr_dir_block *block,
block->hdr.bitmap[5] &= ~(u8)(mask >> 5 * 8);
block->hdr.bitmap[6] &= ~(u8)(mask >> 6 * 8);
block->hdr.bitmap[7] &= ~(u8)(mask >> 7 * 8);
-
- after = *(u64 *)block->hdr.bitmap;
}
/*
diff --git a/fs/afs/file.c b/fs/afs/file.c
index dd3c55c9101c4e8475eca6a66e789a5f991d845d..8415733f7bc1c2bce2a8c288c23c48984dafd4d6 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -223,7 +223,7 @@ static void afs_file_readpage_read_complete(struct page *page,
/*
* Fetch file data from the volume.
*/
-int afs_fetch_data(struct afs_vnode *vnode, struct key *key, struct afs_read *desc)
+int afs_fetch_data(struct afs_vnode *vnode, struct key *key, struct afs_read *req)
{
struct afs_fs_cursor fc;
struct afs_status_cb *scb;
@@ -246,7 +246,7 @@ int afs_fetch_data(struct afs_vnode *vnode, struct key *key, struct afs_read *de
while (afs_select_fileserver(&fc)) {
fc.cb_break = afs_calc_vnode_cb_break(vnode);
- afs_fs_fetch_data(&fc, scb, desc);
+ afs_fs_fetch_data(&fc, scb, req);
}
afs_check_for_remote_deletion(&fc, vnode);
@@ -257,7 +257,7 @@ int afs_fetch_data(struct afs_vnode *vnode, struct key *key, struct afs_read *de
if (ret == 0) {
afs_stat_v(vnode, n_fetches);
- atomic_long_add(desc->actual_len,
+ atomic_long_add(req->actual_len,
&afs_v2net(vnode)->n_fetch_bytes);
}
diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c
index 6f84231f11a5d7c8eadda8758ffae0c37e0d06fe..1f9c5d8e6fe5538a0702d00824719bdb7cc90d02 100644
--- a/fs/afs/fsclient.c
+++ b/fs/afs/fsclient.c
@@ -323,7 +323,7 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call)
int ret;
_enter("{%u,%zu/%llu}",
- call->unmarshall, iov_iter_count(&call->iter), req->actual_len);
+ call->unmarshall, iov_iter_count(call->iter), req->actual_len);
switch (call->unmarshall) {
case 0:
@@ -363,14 +363,14 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call)
call->bvec[0].bv_len = size;
call->bvec[0].bv_offset = req->offset;
call->bvec[0].bv_page = req->pages[req->index];
- iov_iter_bvec(&call->iter, READ, call->bvec, 1, size);
+ iov_iter_bvec(&call->def_iter, READ, call->bvec, 1, size);
ASSERTCMP(size, <=, PAGE_SIZE);
/* Fall through */
/* extract the returned data */
case 2:
_debug("extract data %zu/%llu",
- iov_iter_count(&call->iter), req->remain);
+ iov_iter_count(call->iter), req->remain);
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -398,7 +398,7 @@ static int afs_deliver_fs_fetch_data(struct afs_call *call)
case 3:
_debug("extract discard %zu/%llu",
- iov_iter_count(&call->iter), req->actual_len - req->len);
+ iov_iter_count(call->iter), req->actual_len - req->len);
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -490,7 +490,7 @@ static int afs_fs_fetch_data64(struct afs_fs_cursor *fc,
call->key = fc->key;
call->out_scb = scb;
call->out_volsync = NULL;
- call->read_request = req;
+ call->read_request = afs_get_read(req);
/* marshall the parameters */
bp = call->request;
@@ -503,7 +503,6 @@ static int afs_fs_fetch_data64(struct afs_fs_cursor *fc,
bp[6] = 0;
bp[7] = htonl(lower_32_bits(req->len));
- refcount_inc(&req->usage);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
afs_set_fc_call(call, fc);
@@ -540,7 +539,7 @@ int afs_fs_fetch_data(struct afs_fs_cursor *fc,
call->key = fc->key;
call->out_scb = scb;
call->out_volsync = NULL;
- call->read_request = req;
+ call->read_request = afs_get_read(req);
/* marshall the parameters */
bp = call->request;
@@ -551,7 +550,6 @@ int afs_fs_fetch_data(struct afs_fs_cursor *fc,
bp[4] = htonl(lower_32_bits(req->pos));
bp[5] = htonl(lower_32_bits(req->len));
- refcount_inc(&req->usage);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
afs_set_fc_call(call, fc);
@@ -1852,7 +1850,7 @@ static int afs_deliver_fs_get_capabilities(struct afs_call *call)
u32 count;
int ret;
- _enter("{%u,%zu}", call->unmarshall, iov_iter_count(&call->iter));
+ _enter("{%u,%zu}", call->unmarshall, iov_iter_count(call->iter));
switch (call->unmarshall) {
case 0:
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 759e0578012c268c9ca1aa24a586e874d9ef99c8..1d81fc4c3058c328fcbdbe960dafd1a553b26661 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -115,9 +115,9 @@ struct afs_call {
struct afs_vnode *lvnode; /* vnode being locked */
void *request; /* request data (first part) */
struct address_space *mapping; /* Pages being written from */
- struct iov_iter iter; /* Buffer iterator */
- struct iov_iter *_iter; /* Iterator currently in use */
- union { /* Convenience for ->iter */
+ struct iov_iter def_iter; /* Default buffer/data iterator */
+ struct iov_iter *iter; /* Iterator currently in use */
+ union { /* Convenience for ->def_iter */
struct kvec kvec[1];
struct bio_vec bvec[1];
};
@@ -934,6 +934,12 @@ extern int afs_fetch_data(struct afs_vnode *, struct key *, struct afs_read *);
extern int afs_page_filler(void *, struct page *);
extern void afs_put_read(struct afs_read *);
+static inline struct afs_read *afs_get_read(struct afs_read *req)
+{
+ refcount_inc(&req->usage);
+ return req;
+}
+
/*
* flock.c
*/
@@ -1136,7 +1142,7 @@ static inline void afs_extract_begin(struct afs_call *call, void *buf, size_t si
{
call->kvec[0].iov_base = buf;
call->kvec[0].iov_len = size;
- iov_iter_kvec(&call->iter, READ, call->kvec, 1, size);
+ iov_iter_kvec(&call->def_iter, READ, call->kvec, 1, size);
}
static inline void afs_extract_to_tmp(struct afs_call *call)
@@ -1151,7 +1157,7 @@ static inline void afs_extract_to_tmp64(struct afs_call *call)
static inline void afs_extract_discard(struct afs_call *call, size_t size)
{
- iov_iter_discard(&call->iter, READ, size);
+ iov_iter_discard(&call->def_iter, READ, size);
}
static inline void afs_extract_to_buf(struct afs_call *call, size_t size)
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index 61498d9f06efe3eaf127791262715e7cdc47ff2b..58d396592250e0e18796f218d2ed5ac100f895e2 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -152,7 +152,7 @@ static struct afs_call *afs_alloc_call(struct afs_net *net,
INIT_WORK(&call->async_work, afs_process_async_call);
init_waitqueue_head(&call->waitq);
spin_lock_init(&call->state_lock);
- call->_iter = &call->iter;
+ call->iter = &call->def_iter;
o = atomic_inc_return(&net->nr_outstanding_calls);
trace_afs_call(call, afs_call_trace_alloc, 1, o,
@@ -513,12 +513,12 @@ static void afs_deliver_to_call(struct afs_call *call)
state == AFS_CALL_SV_AWAIT_ACK
) {
if (state == AFS_CALL_SV_AWAIT_ACK) {
- iov_iter_kvec(&call->iter, READ, NULL, 0, 0);
+ iov_iter_kvec(&call->def_iter, READ, NULL, 0, 0);
ret = rxrpc_kernel_recv_data(call->net->socket,
- call->rxcall, &call->iter,
+ call->rxcall, &call->def_iter,
false, &remote_abort,
&call->service_id);
- trace_afs_receive_data(call, &call->iter, false, ret);
+ trace_afs_receive_data(call, &call->def_iter, false, ret);
if (ret == -EINPROGRESS || ret == -EAGAIN)
return;
@@ -859,7 +859,7 @@ static int afs_deliver_cm_op_id(struct afs_call *call)
{
int ret;
- _enter("{%zu}", iov_iter_count(call->_iter));
+ _enter("{%zu}", iov_iter_count(call->iter));
/* the operation ID forms the first four bytes of the request data */
ret = afs_extract_data(call, true);
@@ -975,7 +975,7 @@ void afs_send_simple_reply(struct afs_call *call, const void *buf, size_t len)
int afs_extract_data(struct afs_call *call, bool want_more)
{
struct afs_net *net = call->net;
- struct iov_iter *iter = call->_iter;
+ struct iov_iter *iter = call->iter;
enum afs_call_state state;
u32 remote_abort = 0;
int ret;
diff --git a/fs/afs/server.c b/fs/afs/server.c
index 64d440aaabc04ca8022ac647632548b42e82e45f..1686bf188ccd056c7453db63557efddceaf08833 100644
--- a/fs/afs/server.c
+++ b/fs/afs/server.c
@@ -151,7 +151,7 @@ static struct afs_server *afs_install_server(struct afs_net *net,
const struct afs_addr_list *alist;
struct afs_server *server;
struct rb_node **pp, *p;
- int ret = -EEXIST, diff;
+ int diff;
_enter("%p", candidate);
@@ -196,7 +196,6 @@ static struct afs_server *afs_install_server(struct afs_net *net,
hlist_add_head_rcu(&server->addr6_link, &net->fs_addresses6);
write_sequnlock(&net->fs_addr_lock);
- ret = 0;
exists:
afs_get_server(server, afs_server_trace_get_install);
diff --git a/fs/afs/vlclient.c b/fs/afs/vlclient.c
index cfb0ac4bd039e672c14110ce8ad4eccb16706103..516e9a3bb5b43571dcb4662f85083ca328f6ee4a 100644
--- a/fs/afs/vlclient.c
+++ b/fs/afs/vlclient.c
@@ -185,7 +185,7 @@ static int afs_deliver_vl_get_addrs_u(struct afs_call *call)
int i, ret;
_enter("{%u,%zu/%u}",
- call->unmarshall, iov_iter_count(call->_iter), call->count);
+ call->unmarshall, iov_iter_count(call->iter), call->count);
switch (call->unmarshall) {
case 0:
@@ -316,7 +316,7 @@ static int afs_deliver_vl_get_capabilities(struct afs_call *call)
int ret;
_enter("{%u,%zu/%u}",
- call->unmarshall, iov_iter_count(call->_iter), call->count);
+ call->unmarshall, iov_iter_count(call->iter), call->count);
switch (call->unmarshall) {
case 0:
@@ -425,7 +425,7 @@ static int afs_deliver_yfsvl_get_endpoints(struct afs_call *call)
int ret;
_enter("{%u,%zu,%u}",
- call->unmarshall, iov_iter_count(call->_iter), call->count2);
+ call->unmarshall, iov_iter_count(call->iter), call->count2);
switch (call->unmarshall) {
case 0:
diff --git a/fs/afs/xattr.c b/fs/afs/xattr.c
index 5552d034090af8ce985d907469261b2cc3d46d18..7af41fd5f3ee4f396aba46849192b1adb3bf51b1 100644
--- a/fs/afs/xattr.c
+++ b/fs/afs/xattr.c
@@ -228,11 +228,11 @@ static int afs_xattr_get_yfs(const struct xattr_handler *handler,
break;
case 1:
data = buf;
- dsize = snprintf(buf, sizeof(buf), "%u", yacl->inherit_flag);
+ dsize = scnprintf(buf, sizeof(buf), "%u", yacl->inherit_flag);
break;
case 2:
data = buf;
- dsize = snprintf(buf, sizeof(buf), "%u", yacl->num_cleaned);
+ dsize = scnprintf(buf, sizeof(buf), "%u", yacl->num_cleaned);
break;
case 3:
data = yacl->vol_acl->data;
@@ -370,13 +370,15 @@ static int afs_xattr_get_fid(const struct xattr_handler *handler,
/* The volume ID is 64-bit, the vnode ID is 96-bit and the
* uniquifier is 32-bit.
*/
- len = sprintf(text, "%llx:", vnode->fid.vid);
+ len = scnprintf(text, sizeof(text), "%llx:", vnode->fid.vid);
if (vnode->fid.vnode_hi)
- len += sprintf(text + len, "%x%016llx",
- vnode->fid.vnode_hi, vnode->fid.vnode);
+ len += scnprintf(text + len, sizeof(text) - len, "%x%016llx",
+ vnode->fid.vnode_hi, vnode->fid.vnode);
else
- len += sprintf(text + len, "%llx", vnode->fid.vnode);
- len += sprintf(text + len, ":%x", vnode->fid.unique);
+ len += scnprintf(text + len, sizeof(text) - len, "%llx",
+ vnode->fid.vnode);
+ len += scnprintf(text + len, sizeof(text) - len, ":%x",
+ vnode->fid.unique);
if (size == 0)
return len;
diff --git a/fs/afs/yfsclient.c b/fs/afs/yfsclient.c
index 9ac035c17dc433fed3f148deab5b62f2ba2405f3..a26126ac7bf1d17c3b0280c2a54e05609b5d6e0c 100644
--- a/fs/afs/yfsclient.c
+++ b/fs/afs/yfsclient.c
@@ -441,7 +441,7 @@ static int yfs_deliver_fs_fetch_data64(struct afs_call *call)
int ret;
_enter("{%u,%zu/%llu}",
- call->unmarshall, iov_iter_count(&call->iter), req->actual_len);
+ call->unmarshall, iov_iter_count(call->iter), req->actual_len);
switch (call->unmarshall) {
case 0:
@@ -476,14 +476,14 @@ static int yfs_deliver_fs_fetch_data64(struct afs_call *call)
call->bvec[0].bv_len = size;
call->bvec[0].bv_offset = req->offset;
call->bvec[0].bv_page = req->pages[req->index];
- iov_iter_bvec(&call->iter, READ, call->bvec, 1, size);
+ iov_iter_bvec(&call->def_iter, READ, call->bvec, 1, size);
ASSERTCMP(size, <=, PAGE_SIZE);
/* Fall through */
/* extract the returned data */
case 2:
_debug("extract data %zu/%llu",
- iov_iter_count(&call->iter), req->remain);
+ iov_iter_count(call->iter), req->remain);
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -511,7 +511,7 @@ static int yfs_deliver_fs_fetch_data64(struct afs_call *call)
case 3:
_debug("extract discard %zu/%llu",
- iov_iter_count(&call->iter), req->actual_len - req->len);
+ iov_iter_count(call->iter), req->actual_len - req->len);
ret = afs_extract_data(call, true);
if (ret < 0)
@@ -605,7 +605,7 @@ int yfs_fs_fetch_data(struct afs_fs_cursor *fc, struct afs_status_cb *scb,
call->key = fc->key;
call->out_scb = scb;
call->out_volsync = NULL;
- call->read_request = req;
+ call->read_request = afs_get_read(req);
/* marshall the parameters */
bp = call->request;
@@ -616,7 +616,6 @@ int yfs_fs_fetch_data(struct afs_fs_cursor *fc, struct afs_status_cb *scb,
bp = xdr_encode_u64(bp, req->len);
yfs_check_req(call, bp);
- refcount_inc(&req->usage);
afs_use_fs_server(call, fc->cbi);
trace_afs_make_fs_call(call, &vnode->fid);
afs_set_fc_call(call, fc);