[PATCH V5 4/5] QUOTA cleanup: Use inode->i_blkbits to get block bits

[Mingming Cao <cmm@xxxxxxxxxx>]

quota: Use inode->i_blkbits to get block bits

From: Mingming Cao <cmm@xxxxxxxxxx>

Andrew has suggested to use inode->i_blkbits to get the block bits info,
rather than use super block's blockbits. That should be faster and emit
less code.

Signed-off-by: Mingming Cao <cmm@xxxxxxxxxx>
---
 include/linux/quotaops.h |   23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

Index: linux-2.6.28-git7/include/linux/quotaops.h
===================================================================
--- linux-2.6.28-git7.orig/include/linux/quotaops.h	2009-01-05 20:06:37.000000000 -0800
+++ linux-2.6.28-git7/include/linux/quotaops.h	2009-01-05 20:06:52.000000000 -0800
@@ -412,39 +412,32 @@ static inline void vfs_dq_free_space(str
 
 static inline int vfs_dq_prealloc_block_nodirty(struct inode *inode, qsize_t nr)
 {
-	return vfs_dq_prealloc_space_nodirty(inode,
-			nr << inode->i_sb->s_blocksize_bits);
+	return vfs_dq_prealloc_space_nodirty(inode, nr << inode->i_blkbits);
 }
 
 static inline int vfs_dq_prealloc_block(struct inode *inode, qsize_t nr)
 {
-	return vfs_dq_prealloc_space(inode,
-			nr << inode->i_sb->s_blocksize_bits);
+	return vfs_dq_prealloc_space(inode, nr << inode->i_blkbits);
 }
 
 static inline int vfs_dq_alloc_block_nodirty(struct inode *inode, qsize_t nr)
 {
- 	return vfs_dq_alloc_space_nodirty(inode,
-			nr << inode->i_sb->s_blocksize_bits);
+	return vfs_dq_alloc_space_nodirty(inode, nr << inode->i_blkbits);
 }
 
-
 static inline int vfs_dq_alloc_block(struct inode *inode, qsize_t nr)
 {
-	return vfs_dq_alloc_space(inode,
-			nr << inode->i_sb->s_blocksize_bits);
+	return vfs_dq_alloc_space(inode, nr << inode->i_blkbits);
 }
 
 static inline int vfs_dq_reserve_block(struct inode *inode, qsize_t nr)
 {
-	return vfs_dq_reserve_space(inode,
-			nr << inode->i_blkbits);
+	return vfs_dq_reserve_space(inode, nr << inode->i_blkbits);
 }
 
 static inline int vfs_dq_claim_block(struct inode *inode, qsize_t nr)
 {
-	return vfs_dq_claim_space(inode,
-			nr << inode->i_blkbits);
+	return vfs_dq_claim_space(inode, nr << inode->i_blkbits);
 }
 
 static inline
@@ -455,12 +448,12 @@ void vfs_dq_release_reservation_block(st
 
 static inline void vfs_dq_free_block_nodirty(struct inode *inode, qsize_t nr)
 {
-	vfs_dq_free_space_nodirty(inode, nr << inode->i_sb->s_blocksize_bits);
+	vfs_dq_free_space_nodirty(inode, nr << inode->i_blkbits);
 }
 
 static inline void vfs_dq_free_block(struct inode *inode, qsize_t nr)
 {
-	vfs_dq_free_space(inode, nr << inode->i_sb->s_blocksize_bits);
+	vfs_dq_free_space(inode, nr << inode->i_blkbits);
 }
 
 /*


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