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From:   Thiago Becker <tbecker@redhat.com>
To:     linux-nfs@vger.kernel.org
Cc:     steved@redhat.com, trond.myklebust@hammerspace.com,
        anna.schumaker@netapp.com, kolga@netapp.com,
        Thiago Becker <tbecker@redhat.com>
Subject: [RFC v2 PATCH 6/7] readahead: add mountpoint and fstype options
Date:   Fri, 11 Mar 2022 16:06:16 -0300
Message-Id: <20220311190617.3294919-7-tbecker@redhat.com>
In-Reply-To: <20220311190617.3294919-1-tbecker@redhat.com>
References: <20220311190617.3294919-1-tbecker@redhat.com>
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Add ways to configure the system by mountpoint or fstype.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1946283
Signed-off-by: Thiago Becker <tbecker@redhat.com>
---
 tools/nfs-readahead-udev/parser.y  | 15 +++++++++++----
 tools/nfs-readahead-udev/scanner.l |  5 +++++
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/tools/nfs-readahead-udev/parser.y b/tools/nfs-readahead-udev/parser.y
index f6db05c4..5951c99d 100644
--- a/tools/nfs-readahead-udev/parser.y
+++ b/tools/nfs-readahead-udev/parser.y
@@ -10,20 +10,25 @@ extern FILE *yyin;
 void yyerror(const char *s);
 
 // This should be visible only to this file
-extern struct config_entry *config_entry_new(void);
+extern struct config_entry *config_entry_new();
 
 struct config_entry *current;
 %}
 
 %union {
+	char *sval;
 	int ival;
 }
 
+%token <sval> STRING
 %token <ival> INT
 %token EQ
 %token ENDL
 %token DEFAULT
+%token MOUNTPOINT
+%token FSTYPE
 %token READAHEAD
+%token <sval> FS
 %token END_CONFIG 0
 
 %%
@@ -35,7 +40,7 @@ line:
 	tokens endls {
 		struct config_entry *new = config_entry_new();
 		list_add(&current->list, &new->list);
-		current = new;
+		current = new;		
 	}
 
 
@@ -49,9 +54,11 @@ default:
 	DEFAULT
 
 pair:
-	READAHEAD EQ INT	{ current->readahead = $3; }
+	MOUNTPOINT EQ STRING	{ current->mountpoint = $3; }
+	| FSTYPE EQ FS		{ current->fstype = $3; }
+	| READAHEAD EQ INT	{ current->readahead = $3; }
 
-endls:
+endls: 
 	endls ENDL | ENDL
 
 %%
diff --git a/tools/nfs-readahead-udev/scanner.l b/tools/nfs-readahead-udev/scanner.l
index d1ceb90b..c6fb3f0c 100644
--- a/tools/nfs-readahead-udev/scanner.l
+++ b/tools/nfs-readahead-udev/scanner.l
@@ -5,10 +5,15 @@
 %option noyywrap
 %%
 default		{ return DEFAULT; }
+mountpoint	{ return MOUNTPOINT; }
+fstype		{ return FSTYPE; }
 readahead	{ return READAHEAD; }
+nfs4		{ yylval.sval = strdup(yytext); return FS; }
+nfs		{ yylval.sval = strdup(yytext); return FS; }
 [ \t]		;
 #[^\n]*\n	{ return ENDL; }
 \n		{ return ENDL; }
 [0-9]+		{ yylval.ival = atoi(yytext); return INT; }
+[a-zA-Z0-9/]+	{ yylval.sval = strdup(yytext); return STRING; }
 =		{ return EQ; }
 %%
-- 
2.35.1