[PATCH] truncate: use i_blocksize()

[Geliang Tang <geliangtang@xxxxxxxxx>]

Since i_blocksize() helper has been defined in fs.h, use it instead
of open-coding.

Signed-off-by: Geliang Tang <geliangtang@xxxxxxxxx>
---
 mm/truncate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/truncate.c b/mm/truncate.c
index dd7b24e..4c49a9b 100644
--- a/mm/truncate.c
+++ b/mm/truncate.c
@@ -785,7 +785,7 @@ EXPORT_SYMBOL(truncate_setsize);
  */
 void pagecache_isize_extended(struct inode *inode, loff_t from, loff_t to)
 {
-	int bsize = 1 << inode->i_blkbits;
+	int bsize = i_blocksize(inode);
 	loff_t rounded_from;
 	struct page *page;
 	pgoff_t index;
-- 
2.9.3

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