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authorChristian Schoenebeck <linux_oss@crudebyte.com>2021-12-30 16:23:18 +0300
committerDominique Martinet <asmadeus@codewreck.org>2022-01-10 04:00:09 +0300
commit15e2721b19acb1bfb18ac90775503b75d8aecbb2 (patch)
tree69f50064c9e76d1026fdb2d9df6e8d21cab1ba55 /net
parentdeadd8746ec72bd6cbc351a004809f8a49a61d4b (diff)
downloadlinux-15e2721b19acb1bfb18ac90775503b75d8aecbb2.tar.xz
net/9p: show error message if user 'msize' cannot be satisfied
If user supplied a large value with the 'msize' option, then client would silently limit that 'msize' value to the maximum value supported by transport. That's a bit confusing for users of not having any indication why the preferred 'msize' value could not be satisfied. Link: https://lkml.kernel.org/r/783ba37c1566dd715b9a67d437efa3b77e3cd1a7.1640870037.git.linux_oss@crudebyte.com Reported-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Christian Schoenebeck <linux_oss@crudebyte.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Diffstat (limited to 'net')
-rw-r--r--net/9p/client.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/9p/client.c b/net/9p/client.c
index d062f1e5bfb0..8bba0d9cf975 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -1038,8 +1038,13 @@ struct p9_client *p9_client_create(const char *dev_name, char *options)
if (err)
goto put_trans;
- if (clnt->msize > clnt->trans_mod->maxsize)
+ if (clnt->msize > clnt->trans_mod->maxsize) {
clnt->msize = clnt->trans_mod->maxsize;
+ pr_info("Limiting 'msize' to %d as this is the maximum "
+ "supported by transport %s\n",
+ clnt->msize, clnt->trans_mod->name
+ );
+ }
if (clnt->msize < 4096) {
p9_debug(P9_DEBUG_ERROR,