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| author | Roberto Bergantinos Corpas <rbergant@redhat.com> | 2020-10-19 11:33:56 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2020-10-20 19:21:30 +0200 |
| commit | 27a1e8a0f79e643d4dedb46f71e76bdee3801877 (patch) | |
| tree | 3b8d524caf5d69e776899dbe73da250e9a2caebb | |
| parent | svcrdma: fix bounce buffers for unaligned offsets and multiple pages (diff) | |
| download | linux-27a1e8a0f79e643d4dedb46f71e76bdee3801877.tar.xz linux-27a1e8a0f79e643d4dedb46f71e76bdee3801877.zip | |
sunrpc: raise kernel RPC channel buffer size
Its possible that using AUTH_SYS and mountd manage-gids option a
user may hit the 8k RPC channel buffer limit. This have been observed
on field, causing unanswered RPCs on clients after mountd fails to
write on channel :
rpc.mountd[11231]: auth_unix_gid: error writing reply
Userland nfs-utils uses a buffer size of 32k (RPC_CHAN_BUF_SIZE), so
lets match those two.
Signed-off-by: Roberto Bergantinos Corpas <rbergant@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | net/sunrpc/cache.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 2990a7ab9e2a..20c93b68505e 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -909,7 +909,7 @@ static ssize_t cache_do_downcall(char *kaddr, const char __user *buf, static ssize_t cache_slow_downcall(const char __user *buf, size_t count, struct cache_detail *cd) { - static char write_buf[8192]; /* protected by queue_io_mutex */ + static char write_buf[32768]; /* protected by queue_io_mutex */ ssize_t ret = -EINVAL; if (count >= sizeof(write_buf)) |