[PATCH] xfs: remove unused variable warning in xfs_finish_page_writeback

[Carlos Maiolino <cmaiolino@xxxxxxxxxx>]

From: Carlos Maiolino <cmaiolino@xxxxxxxxxx>

Due the initialization of blockmask variable with its definition, gcc issues the
following warning due an unused variable during compilation time.

fs/xfs//xfs_aops.c: In function âxfs_finish_page_writebackâ:
fs/xfs//xfs_aops.c:97:15: warning: unused variable âblockmaskâ
[-Wunused-variable]
  unsigned int  blockmask = (1 << inode->i_blkbits) - 1;
               ^
Remove this warning by initializing the variable after its definition.

This change causes no difference in the generated assembly code

Signed-off-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
---
 fs/xfs/xfs_aops.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 40645a4..f4e2d3b 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -94,11 +94,12 @@ xfs_finish_page_writeback(
        struct bio_vec          *bvec,
        int                     error)
 {
-       unsigned int            blockmask = (1 << inode->i_blkbits) - 1;
+       unsigned int            blockmask;
        unsigned int            end = bvec->bv_offset + bvec->bv_len - 1;
        struct buffer_head      *head, *bh;
        unsigned int            off = 0;
 
+       blockmask = (1 << inode->i_blkbits) - 1;
        ASSERT(bvec->bv_offset < PAGE_SIZE);
        ASSERT((bvec->bv_offset & blockmask) == 0);
        ASSERT(end < PAGE_SIZE);
-- 
2.4.11