From: trondmy@kernel.org
To: linux-nfs@vger.kernel.org
Subject: [PATCH v2 05/15] SUNRPC: _copy_to/from_pages() now check for zero length
Date: Fri, 11 Dec 2020 12:25:11 -0500 [thread overview]
Message-ID: <20201211172521.5567-6-trondmy@kernel.org> (raw)
In-Reply-To: <20201211172521.5567-5-trondmy@kernel.org>
From: Trond Myklebust <trond.myklebust@hammerspace.com>
Clean up callers of _copy_to/from_pages() that still check for a zero
length.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
---
net/sunrpc/xdr.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 19eaa38f7d16..01918e60b67b 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -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);
--
2.29.2
next prev parent reply other threads:[~2020-12-11 19:09 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-11 17:25 [PATCH v2 00/15] Fixes for the NFSv4.2 READ_PLUS operation trondmy
2020-12-11 17:25 ` [PATCH v2 01/15] SUNRPC: _shift_data_left/right_pages should check the shift length trondmy
2020-12-11 17:25 ` [PATCH v2 02/15] SUNRPC: Fixes for xdr_align_data() trondmy
2020-12-11 17:25 ` [PATCH v2 03/15] SUNRPC: Fix xdr_expand_hole() trondmy
2020-12-11 17:25 ` [PATCH v2 04/15] SUNRPC: Cleanup xdr_shrink_bufhead() trondmy
2020-12-11 17:25 ` trondmy [this message]
2020-12-11 17:25 ` [PATCH v2 06/15] SUNRPC: Clean up open coded setting of the xdr_stream 'nwords' field trondmy
2020-12-11 17:25 ` [PATCH v2 07/15] SUNRPC: Cleanup - constify a number of xdr_buf helpers trondmy
2020-12-11 17:25 ` [PATCH v2 08/15] SUNRPC: When expanding the buffer, we may need grow the sparse pages trondmy
2020-12-11 17:25 ` [PATCH v2 09/15] NFSv4.2: Ensure we always reset the result->count in decode_read_plus() trondmy
2020-12-11 17:25 ` [PATCH v2 10/15] NFSv4.2: decode_read_plus_data() must skip padding after data segment trondmy
2020-12-11 17:25 ` [PATCH v2 11/15] NFSv4.2: decode_read_plus_hole() needs to check the extent offset trondmy
2020-12-11 17:25 ` [PATCH v2 12/15] NFSv4.2: Handle hole lengths that exceed the READ_PLUS read buffer trondmy
2020-12-11 17:25 ` [PATCH v2 13/15] NFSv4.2: Don't error when exiting early on a READ_PLUS buffer overflow trondmy
2020-12-11 17:25 ` [PATCH v2 14/15] NFSv4.2: Deal with potential READ_PLUS data extent " trondmy
2020-12-11 17:25 ` [PATCH v2 15/15] NFSv4.2/pnfs: Don't use READ_PLUS with pNFS yet trondmy
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