[PATCH v3 52/59] cifs: Make wait_mtu_credits take size_t args

David Howells
2023-12-07T21:25:25Z

Make the wait_mtu_credits functions use size_t for the size and num
arguments rather than unsigned int as netfslib uses size_t/ssize_t for
arguments and return values to allow for extra capacity.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Shyam Prasad N <nspmangalore@gmail.com>
cc: Rohith Surabattula <rohiths.msft@gmail.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cifs@vger.kernel.org
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
---
fs/smb/client/cifsglob.h | 4 ++--
fs/smb/client/cifsproto.h | 2 +-
fs/smb/client/file.c | 18 ++++++++++--------
fs/smb/client/smb2ops.c | 4 ++--
fs/smb/client/transport.c | 4 ++--
5 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
index 80a9f15828cc..a0d348b166c2 100644
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -512,8 +512,8 @@ struct smb_version_operations {
/* writepages retry size */
unsigned int (*wp_retry_size)(struct inode *);
/* get mtu credits */
- int (*wait_mtu_credits)(struct TCP_Server_Info *, unsigned int,
- unsigned int *, struct cifs_credits *);
+ int (*wait_mtu_credits)(struct TCP_Server_Info *, size_t,
+ size_t *, struct cifs_credits *);
/* adjust previously taken mtu credits to request size */
int (*adjust_credits)(struct TCP_Server_Info *server,
struct cifs_credits *credits,
diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h
index 47c352426fcf..85e115da8899 100644
--- a/fs/smb/client/cifsproto.h
+++ b/fs/smb/client/cifsproto.h
@@ -121,7 +121,7 @@ extern struct mid_q_entry *cifs_setup_async_request(struct TCP_Server_Info *,
extern int cifs_check_receive(struct mid_q_entry *mid,
struct TCP_Server_Info *server, bool log_error);
extern int cifs_wait_mtu_credits(struct TCP_Server_Info *server,
- unsigned int size, unsigned int *num,
+ size_t size, size_t *num,
struct cifs_credits *credits);
extern int SendReceive2(const unsigned int /* xid */ , struct cifs_ses *,
struct kvec *, int /* nvec to send */,
diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 16f6c15e0d06..b47abeefe628 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -2733,9 +2733,9 @@ static ssize_t cifs_write_back_from_locked_folio(struct address_space *mapping,
struct cifs_credits credits_on_stack;
struct cifs_credits *credits = &credits_on_stack;
struct cifsFileInfo *cfile = NULL;
- unsigned int xid, wsize, len;
+ unsigned int xid, len;
loff_t i_size = i_size_read(inode);
- size_t max_len;
+ size_t max_len, wsize;
long count = wbc->nr_to_write;
int rc;

@@ -3247,7 +3247,7 @@ static int
cifs_resend_wdata(struct cifs_io_subrequest *wdata, struct list_head *wdata_list,
struct cifs_aio_ctx *ctx)
{
- unsigned int wsize;
+ size_t wsize;
struct cifs_credits credits;
int rc;
struct TCP_Server_Info *server = wdata->server;
@@ -3381,7 +3381,8 @@ cifs_write_from_iter(loff_t fpos, size_t len, struct iov_iter *from,
do {
struct cifs_credits credits_on_stack;
struct cifs_credits *credits = &credits_on_stack;
- unsigned int wsize, nsegs = 0;
+ unsigned int nsegs = 0;
+ size_t wsize;

if (signal_pending(current)) {
rc = -EINTR;
@@ -3818,7 +3819,7 @@ static int cifs_resend_rdata(struct cifs_io_subrequest *rdata,
struct list_head *rdata_list,
struct cifs_aio_ctx *ctx)
{
- unsigned int rsize;
+ size_t rsize;
struct cifs_credits credits;
int rc;
struct TCP_Server_Info *server;
@@ -3892,10 +3893,10 @@ cifs_send_async_read(loff_t fpos, size_t len, struct cifsFileInfo *open_file,
struct cifs_aio_ctx *ctx)
{
struct cifs_io_subrequest *rdata;
- unsigned int rsize, nsegs, max_segs = INT_MAX;
+ unsigned int nsegs, max_segs = INT_MAX;
struct cifs_credits credits_on_stack;
struct cifs_credits *credits = &credits_on_stack;
- size_t cur_len, max_len;
+ size_t cur_len, max_len, rsize;
int rc;
pid_t pid;
struct TCP_Server_Info *server;
@@ -4491,12 +4492,13 @@ static void cifs_readahead(struct readahead_control *ractl)
* Chop the readahead request up into rsize-sized read requests.
*/
while ((nr_pages = ra_pages)) {
- unsigned int i, rsize;
+ unsigned int i;
struct cifs_io_subrequest *rdata;
struct cifs_credits credits_on_stack;
struct cifs_credits *credits = &credits_on_stack;
struct folio *folio;
pgoff_t fsize;
+ size_t rsize;

/*
* Find out if we have anything cached in the range of
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
index b27df9e239dd..5850d6afd788 100644
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -216,8 +216,8 @@ smb2_get_credits(struct mid_q_entry *mid)
}

static int
-smb2_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size,
- unsigned int *num, struct cifs_credits *credits)
+smb2_wait_mtu_credits(struct TCP_Server_Info *server, size_t size,
+ size_t *num, struct cifs_credits *credits)
{
int rc = 0;
unsigned int scredits, in_flight;
diff --git a/fs/smb/client/transport.c b/fs/smb/client/transport.c
index 3048516573e8..5cf653463c55 100644
--- a/fs/smb/client/transport.c
+++ b/fs/smb/client/transport.c
@@ -684,8 +684,8 @@ wait_for_compound_request(struct TCP_Server_Info *server, int num,
}

int
-cifs_wait_mtu_credits(struct TCP_Server_Info *server, unsigned int size,
- unsigned int *num, struct cifs_credits *credits)
+cifs_wait_mtu_credits(struct TCP_Server_Info *server, size_t size,
+ size_t *num, struct cifs_credits *credits)
{
*num = size;
credits->value = 0;