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nilfs2: use bgl_lock_ptr()

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Simplify nilfs_mdt_bgl_lock() by utilizing bgl_lock_ptr() helper in
<linux/blockgroup_lock.h>.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ryusuke Konishi 2015-04-16 12:46:31 -07:00 committed by Linus Torvalds
parent ead8ecffa3
commit 0de6d6b9a2
1 changed files with 5 additions and 2 deletions
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7
fs/nilfs2/mdt.h
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@ -111,7 +111,10 @@ static inline __u64 nilfs_mdt_cno(struct inode *inode)
return ((struct the_nilfs *)inode->i_sb->s_fs_info)->ns_cno;
}
#define nilfs_mdt_bgl_lock(inode, bg) \
(&NILFS_MDT(inode)->mi_bgl->locks[(bg) & (NR_BG_LOCKS-1)].lock)
static inline spinlock_t *
nilfs_mdt_bgl_lock(struct inode *inode, unsigned int block_group)
{
return bgl_lock_ptr(NILFS_MDT(inode)->mi_bgl, block_group);
}
#endif /* _NILFS_MDT_H */