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path: root/fs/smb/client/fs_context.c
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Diffstat (limited to 'fs/smb/client/fs_context.c')
-rw-r--r--fs/smb/client/fs_context.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/smb/client/fs_context.c b/fs/smb/client/fs_context.c
index aec8dbd1f9db..4b2f5aa2ea0e 100644
--- a/fs/smb/client/fs_context.c
+++ b/fs/smb/client/fs_context.c
@@ -1111,6 +1111,17 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
case Opt_wsize:
ctx->wsize = result.uint_32;
ctx->got_wsize = true;
+ if (ctx->wsize % PAGE_SIZE != 0) {
+ ctx->wsize = round_down(ctx->wsize, PAGE_SIZE);
+ if (ctx->wsize == 0) {
+ ctx->wsize = PAGE_SIZE;
+ cifs_dbg(VFS, "wsize too small, reset to minimum %ld\n", PAGE_SIZE);
+ } else {
+ cifs_dbg(VFS,
+ "wsize rounded down to %d to multiple of PAGE_SIZE %ld\n",
+ ctx->wsize, PAGE_SIZE);
+ }
+ }
break;
case Opt_acregmax:
ctx->acregmax = HZ * result.uint_32;