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SUNRPC: _copy_to/from_pages() now check for zero length

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Clean up callers of _copy_to/from_pages() that still check for a zero
length.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust
2020-12-06 12:41:41 -05:00
parent 6707fbd7d3
commit e43ac22b83
1 changed files with 2 additions and 4 deletions
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6
net/sunrpc/xdr.c
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@@ -1665,8 +1665,7 @@ static void __read_bytes_from_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigne
len -= this_len;
obj += this_len;
this_len = min_t(unsigned int, len, subbuf->page_len);
if (this_len)
_copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
_copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);
len -= this_len;
obj += this_len;
this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);
@@ -1696,8 +1695,7 @@ static void __write_bytes_to_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned
len -= this_len;
obj += this_len;
this_len = min_t(unsigned int, len, subbuf->page_len);
if (this_len)
_copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);
_copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);
len -= this_len;
obj += this_len;
this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);