mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-13 14:14:37 +00:00
Code Issues Releases Wiki Activity

NFSv4.2: Handle hole lengths that exceed the READ_PLUS read buffer

Browse source 
If a hole extends beyond the READ_PLUS read buffer, then we want to fill
just the remaining buffer with zeros. Also ignore eof...

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2020-12-08 08:41:01 -05:00
parent 82f98c8b11
commit dac3b1059b
1 changed files with 6 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
fs/nfs/nfs42xdr.c
View file

@ -1080,6 +1080,12 @@ static int decode_read_plus_hole(struct xdr_stream *xdr,
}
length -= args->offset + res->count - offset;
}
if (length + res->count > args->count) {
*eof = 0;
if (unlikely(res->count >= args->count))
return 1;
length = args->count - res->count;
}
recvd = xdr_expand_hole(xdr, res->count, length);
res->count += recvd;