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nilfs2: get rid of NILFS_I_NILFS

This replaces all references of NILFS_I_NILFS(inode)->ns_bdev with
inode->i_sb->s_bdev and unfolds remaining uses of NILFS_I_NILFS inline
function.

Before 2.6.37, referring to a nilfs object from inodes needed a
conditional judgement, and NILFS_I_NILFS was helpful to simplify it.
But now we can simply do it by going through a super block instance
like inode->i_sb->s_fs_info.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
master
Ryusuke Konishi 11 years ago
parent
commit
0ef28f9aec
  1. 4
      fs/nilfs2/bmap.c
  2. 9
      fs/nilfs2/btnode.c
  3. 8
      fs/nilfs2/gcinode.c
  4. 8
      fs/nilfs2/inode.c
  5. 7
      fs/nilfs2/mdt.h
  6. 4
      fs/nilfs2/sufile.c
  7. 2
      fs/nilfs2/sufile.h

4
fs/nilfs2/bmap.c

@ -34,7 +34,9 @@
struct inode *nilfs_bmap_get_dat(const struct nilfs_bmap *bmap)
{
return NILFS_I_NILFS(bmap->b_inode)->ns_dat;
struct the_nilfs *nilfs = bmap->b_inode->i_sb->s_fs_info;
return nilfs->ns_dat;
}
static int nilfs_bmap_convert_error(struct nilfs_bmap *bmap,

9
fs/nilfs2/btnode.c

@ -62,7 +62,7 @@ nilfs_btnode_create_block(struct address_space *btnc, __u64 blocknr)
BUG();
}
memset(bh->b_data, 0, 1 << inode->i_blkbits);
bh->b_bdev = NILFS_I_NILFS(inode)->ns_bdev;
bh->b_bdev = inode->i_sb->s_bdev;
bh->b_blocknr = blocknr;
set_buffer_mapped(bh);
set_buffer_uptodate(bh);
@ -94,10 +94,11 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
if (pblocknr == 0) {
pblocknr = blocknr;
if (inode->i_ino != NILFS_DAT_INO) {
struct inode *dat = NILFS_I_NILFS(inode)->ns_dat;
struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
/* blocknr is a virtual block number */
err = nilfs_dat_translate(dat, blocknr, &pblocknr);
err = nilfs_dat_translate(nilfs->ns_dat, blocknr,
&pblocknr);
if (unlikely(err)) {
brelse(bh);
goto out_locked;
@ -120,7 +121,7 @@ int nilfs_btnode_submit_block(struct address_space *btnc, __u64 blocknr,
goto found;
}
set_buffer_mapped(bh);
bh->b_bdev = NILFS_I_NILFS(inode)->ns_bdev;
bh->b_bdev = inode->i_sb->s_bdev;
bh->b_blocknr = pblocknr; /* set block address for read */
bh->b_end_io = end_buffer_read_sync;
get_bh(bh);

8
fs/nilfs2/gcinode.c

@ -84,9 +84,9 @@ int nilfs_gccache_submit_read_data(struct inode *inode, sector_t blkoff,
goto out;
if (pbn == 0) {
struct inode *dat_inode = NILFS_I_NILFS(inode)->ns_dat;
/* use original dat, not gc dat. */
err = nilfs_dat_translate(dat_inode, vbn, &pbn);
struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
err = nilfs_dat_translate(nilfs->ns_dat, vbn, &pbn);
if (unlikely(err)) { /* -EIO, -ENOMEM, -ENOENT */
brelse(bh);
goto failed;
@ -100,7 +100,7 @@ int nilfs_gccache_submit_read_data(struct inode *inode, sector_t blkoff,
}
if (!buffer_mapped(bh)) {
bh->b_bdev = NILFS_I_NILFS(inode)->ns_bdev;
bh->b_bdev = inode->i_sb->s_bdev;
set_buffer_mapped(bh);
}
bh->b_blocknr = pbn;

8
fs/nilfs2/inode.c

@ -74,14 +74,14 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff,
struct buffer_head *bh_result, int create)
{
struct nilfs_inode_info *ii = NILFS_I(inode);
struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
__u64 blknum = 0;
int err = 0, ret;
struct inode *dat = NILFS_I_NILFS(inode)->ns_dat;
unsigned maxblocks = bh_result->b_size >> inode->i_blkbits;
down_read(&NILFS_MDT(dat)->mi_sem);
down_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
ret = nilfs_bmap_lookup_contig(ii->i_bmap, blkoff, &blknum, maxblocks);
up_read(&NILFS_MDT(dat)->mi_sem);
up_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
if (ret >= 0) { /* found */
map_bh(bh_result, inode->i_sb, blknum);
if (ret > 0)
@ -940,7 +940,7 @@ void nilfs_dirty_inode(struct inode *inode)
int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
__u64 start, __u64 len)
{
struct the_nilfs *nilfs = NILFS_I_NILFS(inode);
struct the_nilfs *nilfs = inode->i_sb->s_fs_info;
__u64 logical = 0, phys = 0, size = 0;
__u32 flags = 0;
loff_t isize;

7
fs/nilfs2/mdt.h

@ -64,11 +64,6 @@ static inline struct nilfs_mdt_info *NILFS_MDT(const struct inode *inode)
return inode->i_private;
}
static inline struct the_nilfs *NILFS_I_NILFS(struct inode *inode)
{
return inode->i_sb->s_fs_info;
}
/* Default GFP flags using highmem */
#define NILFS_MDT_GFP (__GFP_WAIT | __GFP_IO | __GFP_HIGHMEM)
@ -108,7 +103,7 @@ static inline void nilfs_mdt_clear_dirty(struct inode *inode)
static inline __u64 nilfs_mdt_cno(struct inode *inode)
{
return NILFS_I_NILFS(inode)->ns_cno;
return ((struct the_nilfs *)inode->i_sb->s_fs_info)->ns_cno;
}
#define nilfs_mdt_bgl_lock(inode, bg) \

4
fs/nilfs2/sufile.c

@ -562,7 +562,7 @@ int nilfs_sufile_get_stat(struct inode *sufile, struct nilfs_sustat *sustat)
{
struct buffer_head *header_bh;
struct nilfs_sufile_header *header;
struct the_nilfs *nilfs = NILFS_I_NILFS(sufile);
struct the_nilfs *nilfs = sufile->i_sb->s_fs_info;
void *kaddr;
int ret;
@ -812,7 +812,7 @@ ssize_t nilfs_sufile_get_suinfo(struct inode *sufile, __u64 segnum, void *buf,
struct nilfs_segment_usage *su;
struct nilfs_suinfo *si = buf;
size_t susz = NILFS_MDT(sufile)->mi_entry_size;
struct the_nilfs *nilfs = NILFS_I_NILFS(sufile);
struct the_nilfs *nilfs = sufile->i_sb->s_fs_info;
void *kaddr;
unsigned long nsegs, segusages_per_block;
ssize_t n;

2
fs/nilfs2/sufile.h

@ -31,7 +31,7 @@
static inline unsigned long nilfs_sufile_get_nsegments(struct inode *sufile)
{
return NILFS_I_NILFS(sufile)->ns_nsegments;
return ((struct the_nilfs *)sufile->i_sb->s_fs_info)->ns_nsegments;
}
unsigned long nilfs_sufile_get_ncleansegs(struct inode *sufile);

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