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CIFS: Use separate var for the number of bytes got in async read 

and don't mix it with the number of bytes that was requested.

Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
This commit is contained in:
Pavel Shilovsky 2014-07-10 10:03:29 +04:00 committed by Steve French
parent 3fabaa2746
commit 34a54d6177
4 changed files with 7 additions and 6 deletions
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1
fs/cifs/cifsglob.h
View File

@ -1059,6 +1059,7 @@ struct cifs_readdata {
struct address_space *mapping;
__u64 offset;
unsigned int bytes;
unsigned int got_bytes;
pid_t pid;
int result;
struct work_struct work;

6
fs/cifs/cifssmb.c
View File

@ -1513,7 +1513,7 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
return length;
server->total_read += length;
rdata->bytes = length;
rdata->got_bytes = length;
cifs_dbg(FYI, "total_read=%u buflen=%u remaining=%u\n",
server->total_read, buflen, data_len);
@ -1556,8 +1556,8 @@ cifs_readv_callback(struct mid_q_entry *mid)
rc);
}
/* FIXME: should this be counted toward the initiating task? */
task_io_account_read(rdata->bytes);
cifs_stats_bytes_read(tcon, rdata->bytes);
task_io_account_read(rdata->got_bytes);
cifs_stats_bytes_read(tcon, rdata->got_bytes);
break;
case MID_REQUEST_SUBMITTED:
case MID_RETRY_NEEDED:

2
fs/cifs/file.c
View File

@ -2840,7 +2840,7 @@ cifs_uncached_readdata_release(struct kref *refcount)
static int
cifs_readdata_to_iov(struct cifs_readdata *rdata, struct iov_iter *iter)
{
size_t remaining = rdata->bytes;
size_t remaining = rdata->got_bytes;
unsigned int i;
for (i = 0; i < rdata->nr_pages; i++) {

4
fs/cifs/smb2pdu.c
View File

@ -1723,8 +1723,8 @@ smb2_readv_callback(struct mid_q_entry *mid)
rc);
}
/* FIXME: should this be counted toward the initiating task? */
task_io_account_read(rdata->bytes);
cifs_stats_bytes_read(tcon, rdata->bytes);
task_io_account_read(rdata->got_bytes);
cifs_stats_bytes_read(tcon, rdata->got_bytes);
break;
case MID_REQUEST_SUBMITTED:
case MID_RETRY_NEEDED: