Only set the quota operation vectors if the filesystem actually supports
quota instead of doing it for all filesystems in alloc_super().
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Index: linux-2.6/fs/super.c
===================================================================
--- linux-2.6.orig/fs/super.c 2010-05-10 23:24:19.215025989 +0200
+++ linux-2.6/fs/super.c 2010-05-10 23:24:54.148210860 +0200
@@ -26,7 +26,6 @@
#include <linux/smp_lock.h>
#include <linux/acct.h>
#include <linux/blkdev.h>
-#include <linux/quotaops.h>
#include <linux/namei.h>
#include <linux/mount.h>
#include <linux/security.h>
@@ -101,8 +100,6 @@ static struct super_block *alloc_super(s
init_rwsem(&s->s_dquot.dqptr_sem);
init_waitqueue_head(&s->s_wait_unfrozen);
s->s_maxbytes = MAX_NON_LFS;
- s->dq_op = sb_dquot_ops;
- s->s_qcop = sb_quotactl_ops;
s->s_op = &default_op;
s->s_time_gran = 1000000000;
}
Index: linux-2.6/include/linux/quotaops.h
===================================================================
--- linux-2.6.orig/include/linux/quotaops.h 2010-05-10 23:24:30.453195565 +0200
+++ linux-2.6/include/linux/quotaops.h 2010-05-10 23:37:46.910024731 +0200
@@ -140,9 +140,6 @@ static inline unsigned sb_any_quota_acti
extern const struct dquot_operations dquot_operations;
extern const struct quotactl_ops vfs_quotactl_ops;
-#define sb_dquot_ops (&dquot_operations)
-#define sb_quotactl_ops (&vfs_quotactl_ops)
-
#else
static inline int sb_has_quota_usage_enabled(struct super_block *sb, int type)
@@ -186,12 +183,6 @@ static inline int sb_any_quota_active(st
return 0;
}
-/*
- * NO-OP when quota not configured.
- */
-#define sb_dquot_ops (NULL)
-#define sb_quotactl_ops (NULL)
-
static inline void dquot_initialize(struct inode *inode)
{
}
Index: linux-2.6/fs/jfs/super.c
===================================================================
--- linux-2.6.orig/fs/jfs/super.c 2010-05-10 23:24:19.201253535 +0200
+++ linux-2.6/fs/jfs/super.c 2010-05-10 23:37:46.837004197 +0200
@@ -479,6 +479,10 @@ static int jfs_fill_super(struct super_b
*/
sb->s_op = &jfs_super_operations;
sb->s_export_op = &jfs_export_operations;
+#ifdef CONFIG_QUOTA
+ sb->dq_op = &dquot_operations;
+ sb->s_qcop = &vfs_quotactl_ops;
+#endif
/*
* Initialize direct-mapping inode/address-space
Index: linux-2.6/fs/udf/super.c
===================================================================
--- linux-2.6.orig/fs/udf/super.c 2010-05-10 23:22:58.822262265 +0200
+++ linux-2.6/fs/udf/super.c 2010-05-10 23:40:26.739255629 +0200
@@ -56,6 +56,7 @@
#include <linux/mount.h>
#include <linux/seq_file.h>
#include <linux/bitmap.h>
+#include <linux/quotaops.h>
#include <linux/crc-itu-t.h>
#include <asm/byteorder.h>
@@ -1939,7 +1940,11 @@ static int udf_fill_super(struct super_b
/* Fill in the rest of the superblock */
sb->s_op = &udf_sb_ops;
sb->s_export_op = &udf_export_ops;
- sb->dq_op = NULL;
+#ifdef CONFIG_QUOTA
+ sb->s_qcop = &vfs_quotactl_ops;
+ sb->dq_op = NULL; /* &dquot_operations */
+#endif
+
sb->s_dirt = 0;
sb->s_magic = UDF_SUPER_MAGIC;
sb->s_time_gran = 1000;
Index: linux-2.6/fs/ufs/super.c
===================================================================
--- linux-2.6.orig/fs/ufs/super.c 2010-05-10 23:24:19.220276582 +0200
+++ linux-2.6/fs/ufs/super.c 2010-05-10 23:37:46.895004477 +0200
@@ -1045,7 +1045,11 @@ magic_found:
*/
sb->s_op = &ufs_super_ops;
sb->s_export_op = &ufs_export_ops;
- sb->dq_op = NULL; /***/
+#ifdef CONFIG_QUOTA
+ sb->s_qcop = &vfs_quotactl_ops;
+ sb->dq_op = NULL; /* &dquot_operations */
+#endif
+
sb->s_magic = fs32_to_cpu(sb, usb3->fs_magic);
uspi->s_sblkno = fs32_to_cpu(sb, usb1->fs_sblkno);
--
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