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cifs: fix signed/unsigned mismatch on aio_read patch 

The patch "CIFS: Add support for direct I/O read" had
a signed/unsigned mismatch (ssize_t vs. size_t) in the
return from one function.  Similar trivial change
in aio_write

Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
This commit is contained in:
Steve French 2018-11-01 10:54:32 -05:00
parent 8c6c9bed87
commit b98e26df07
1 changed files with 11 additions and 6 deletions
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17
fs/cifs/file.c
View File

@ -2625,18 +2625,21 @@ cifs_write_from_iter(loff_t offset, size_t len, struct iov_iter *from,
break;
if (ctx->direct_io) {
cur_len = iov_iter_get_pages_alloc(
ssize_t result;
result = iov_iter_get_pages_alloc(
from, &pagevec, wsize, &start);
if (cur_len < 0) {
if (result < 0) {
cifs_dbg(VFS,
"direct_writev couldn't get user pages "
"(rc=%zd) iter type %d iov_offset %zd "
"count %zd\n",
cur_len, from->type,
result, from->type,
from->iov_offset, from->count);
dump_stack();
break;
}
cur_len = (size_t)result;
iov_iter_advance(from, cur_len);
nr_pages =
@ -3322,21 +3325,23 @@ cifs_send_async_read(loff_t offset, size_t len, struct cifsFileInfo *open_file,
cur_len = min_t(const size_t, len, rsize);
if (ctx->direct_io) {
ssize_t result;
cur_len = iov_iter_get_pages_alloc(
result = iov_iter_get_pages_alloc(
&direct_iov, &pagevec,
cur_len, &start);
if (cur_len < 0) {
if (result < 0) {
cifs_dbg(VFS,
"couldn't get user pages (cur_len=%zd)"
" iter type %d"
" iov_offset %zd count %zd\n",
cur_len, direct_iov.type,
result, direct_iov.type,
direct_iov.iov_offset,
direct_iov.count);
dump_stack();
break;
}
cur_len = (size_t)result;
iov_iter_advance(&direct_iov, cur_len);
rdata = cifs_readdata_direct_alloc(