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yaml
---
r: 213745
b: refs/heads/master
c: e912a5b
h: refs/heads/master
i:
  213743: c75e1e0
v: v3
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Ryusuke Konishi committed Oct 23, 2010
1 parent 400aa47 commit 4251782
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Showing 8 changed files with 68 additions and 81 deletions.
2 changes: 1 addition & 1 deletion [refs]
View file
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 8e656fd518784b49453f60c5f78b78703bc85cb2
refs/heads/master: e912a5b66837ee89fb025e67b5efeaa11930c2ce
48 changes: 21 additions & 27 deletions trunk/fs/nilfs2/inode.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -301,7 +301,7 @@ struct inode *nilfs_new_inode(struct inode *dir, int mode)
ii->i_state = 1 << NILFS_I_NEW;
ii->i_root = root;

err = nilfs_ifile_create_inode(sbi->s_ifile, &ino, &ii->i_bh);
err = nilfs_ifile_create_inode(root->ifile, &ino, &ii->i_bh);
if (unlikely(err))
goto failed_ifile_create_inode;
/* reference count of i_bh inherits from nilfs_mdt_read_block() */
Expand Down Expand Up @@ -358,16 +358,6 @@ struct inode *nilfs_new_inode(struct inode *dir, int mode)
return ERR_PTR(err);
}

void nilfs_free_inode(struct inode *inode)
{
struct super_block *sb = inode->i_sb;
struct nilfs_sb_info *sbi = NILFS_SB(sb);

/* XXX: check error code? Is there any thing I can do? */
(void) nilfs_ifile_delete_inode(sbi->s_ifile, inode->i_ino);
atomic_dec(&sbi->s_inodes_count);
}

void nilfs_set_inode_flags(struct inode *inode)
{
unsigned int flags = NILFS_I(inode)->i_flags;
Expand Down Expand Up @@ -431,7 +421,8 @@ int nilfs_read_inode_common(struct inode *inode,
return 0;
}

static int __nilfs_read_inode(struct super_block *sb, unsigned long ino,
static int __nilfs_read_inode(struct super_block *sb,
struct nilfs_root *root, unsigned long ino,
struct inode *inode)
{
struct nilfs_sb_info *sbi = NILFS_SB(sb);
Expand All @@ -441,11 +432,11 @@ static int __nilfs_read_inode(struct super_block *sb, unsigned long ino,
int err;

down_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
err = nilfs_ifile_get_inode_block(sbi->s_ifile, ino, &bh);
err = nilfs_ifile_get_inode_block(root->ifile, ino, &bh);
if (unlikely(err))
goto bad_inode;

raw_inode = nilfs_ifile_map_inode(sbi->s_ifile, ino, bh);
raw_inode = nilfs_ifile_map_inode(root->ifile, ino, bh);

err = nilfs_read_inode_common(inode, raw_inode);
if (err)
Expand All @@ -468,14 +459,14 @@ static int __nilfs_read_inode(struct super_block *sb, unsigned long ino,
inode, inode->i_mode,
huge_decode_dev(le64_to_cpu(raw_inode->i_device_code)));
}
nilfs_ifile_unmap_inode(sbi->s_ifile, ino, bh);
nilfs_ifile_unmap_inode(root->ifile, ino, bh);
brelse(bh);
up_read(&NILFS_MDT(dat)->mi_sem); /* XXX */
nilfs_set_inode_flags(inode);
return 0;

failed_unmap:
nilfs_ifile_unmap_inode(sbi->s_ifile, ino, bh);
nilfs_ifile_unmap_inode(root->ifile, ino, bh);
brelse(bh);

bad_inode:
Expand Down Expand Up @@ -530,7 +521,7 @@ struct inode *nilfs_iget(struct super_block *sb, struct nilfs_root *root,
if (!(inode->i_state & I_NEW))
return inode;

err = __nilfs_read_inode(sb, ino, inode);
err = __nilfs_read_inode(sb, root, ino, inode);
if (unlikely(err)) {
iget_failed(inode);
return ERR_PTR(err);
Expand Down Expand Up @@ -595,21 +586,20 @@ void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh)
{
ino_t ino = inode->i_ino;
struct nilfs_inode_info *ii = NILFS_I(inode);
struct super_block *sb = inode->i_sb;
struct nilfs_sb_info *sbi = NILFS_SB(sb);
struct inode *ifile = ii->i_root->ifile;
struct nilfs_inode *raw_inode;

raw_inode = nilfs_ifile_map_inode(sbi->s_ifile, ino, ibh);
raw_inode = nilfs_ifile_map_inode(ifile, ino, ibh);

if (test_and_clear_bit(NILFS_I_NEW, &ii->i_state))
memset(raw_inode, 0, NILFS_MDT(sbi->s_ifile)->mi_entry_size);
memset(raw_inode, 0, NILFS_MDT(ifile)->mi_entry_size);
set_bit(NILFS_I_INODE_DIRTY, &ii->i_state);

nilfs_write_inode_common(inode, raw_inode, 0);
/* XXX: call with has_bmap = 0 is a workaround to avoid
deadlock of bmap. This delays update of i_bmap to just
before writing */
nilfs_ifile_unmap_inode(sbi->s_ifile, ino, ibh);
nilfs_ifile_unmap_inode(ifile, ino, ibh);
}

#define NILFS_MAX_TRUNCATE_BLOCKS 16384 /* 64MB for 4KB block */
Expand Down Expand Up @@ -719,12 +709,16 @@ void nilfs_evict_inode(struct inode *inode)
if (inode->i_data.nrpages)
truncate_inode_pages(&inode->i_data, 0);

/* TODO: some of the following operations may fail. */
nilfs_truncate_bmap(ii, 0);
nilfs_mark_inode_dirty(inode);
end_writeback(inode);

nilfs_ifile_delete_inode(ii->i_root->ifile, inode->i_ino);
atomic_dec(&NILFS_SB(sb)->s_inodes_count);

nilfs_clear_inode(inode);
nilfs_free_inode(inode);
/* nilfs_free_inode() marks inode buffer dirty */

if (IS_SYNC(inode))
nilfs_set_transaction_flag(NILFS_TI_SYNC);
nilfs_transaction_commit(sb);
Expand Down Expand Up @@ -779,8 +773,8 @@ int nilfs_load_inode_block(struct nilfs_sb_info *sbi, struct inode *inode,
spin_lock(&sbi->s_inode_lock);
if (ii->i_bh == NULL) {
spin_unlock(&sbi->s_inode_lock);
err = nilfs_ifile_get_inode_block(sbi->s_ifile, inode->i_ino,
pbh);
err = nilfs_ifile_get_inode_block(ii->i_root->ifile,
inode->i_ino, pbh);
if (unlikely(err))
return err;
spin_lock(&sbi->s_inode_lock);
Expand Down Expand Up @@ -860,7 +854,7 @@ int nilfs_mark_inode_dirty(struct inode *inode)
}
nilfs_update_inode(inode, ibh);
nilfs_mdt_mark_buffer_dirty(ibh);
nilfs_mdt_mark_dirty(sbi->s_ifile);
nilfs_mdt_mark_dirty(NILFS_I(inode)->i_root->ifile);
brelse(ibh);
return 0;
}
Expand Down
1 change: 0 additions & 1 deletion trunk/fs/nilfs2/nilfs.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -286,7 +286,6 @@ extern int nilfs_commit_super(struct nilfs_sb_info *, int);
extern int nilfs_cleanup_super(struct nilfs_sb_info *);
int nilfs_attach_checkpoint(struct nilfs_sb_info *sbi, __u64 cno, int curr_mnt,
struct nilfs_root **root);
extern void nilfs_detach_checkpoint(struct nilfs_sb_info *);

/* gcinode.c */
int nilfs_gccache_submit_read_data(struct inode *, sector_t, sector_t, __u64,
Expand Down
3 changes: 1 addition & 2 deletions trunk/fs/nilfs2/recovery.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -773,7 +773,7 @@ int nilfs_salvage_orphan_logs(struct the_nilfs *nilfs,
goto failed;
}

err = nilfs_attach_segment_constructor(sbi);
err = nilfs_attach_segment_constructor(sbi, root);
if (unlikely(err))
goto failed;

Expand All @@ -791,7 +791,6 @@ int nilfs_salvage_orphan_logs(struct the_nilfs *nilfs,
}

failed:
nilfs_detach_checkpoint(sbi);
nilfs_put_root(root);
return err;
}
Expand Down
3 changes: 0 additions & 3 deletions trunk/fs/nilfs2/sb.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -68,9 +68,6 @@ struct nilfs_sb_info {
spinlock_t s_inode_lock; /* Lock for the nilfs inode.
It covers s_dirty_files list */

/* Metadata files */
struct inode *s_ifile; /* index file inode */

/* Inode allocator */
spinlock_t s_next_gen_lock;
u32 s_next_generation;
Expand Down
43 changes: 26 additions & 17 deletions trunk/fs/nilfs2/segment.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -763,12 +763,12 @@ static void nilfs_dispose_list(struct nilfs_sb_info *sbi,
}
}

static int nilfs_test_metadata_dirty(struct nilfs_sb_info *sbi)
static int nilfs_test_metadata_dirty(struct the_nilfs *nilfs,
struct nilfs_root *root)
{
struct the_nilfs *nilfs = sbi->s_nilfs;
int ret = 0;

if (nilfs_mdt_fetch_dirty(sbi->s_ifile))
if (nilfs_mdt_fetch_dirty(root->ifile))
ret++;
if (nilfs_mdt_fetch_dirty(nilfs->ns_cpfile))
ret++;
Expand All @@ -793,7 +793,7 @@ static int nilfs_segctor_confirm(struct nilfs_sc_info *sci)
struct nilfs_sb_info *sbi = sci->sc_sbi;
int ret = 0;

if (nilfs_test_metadata_dirty(sbi))
if (nilfs_test_metadata_dirty(sbi->s_nilfs, sci->sc_root))
set_bit(NILFS_SC_DIRTY, &sci->sc_flags);

spin_lock(&sbi->s_inode_lock);
Expand All @@ -809,7 +809,7 @@ static void nilfs_segctor_clear_metadata_dirty(struct nilfs_sc_info *sci)
struct nilfs_sb_info *sbi = sci->sc_sbi;
struct the_nilfs *nilfs = sbi->s_nilfs;

nilfs_mdt_clear_dirty(sbi->s_ifile);
nilfs_mdt_clear_dirty(sci->sc_root->ifile);
nilfs_mdt_clear_dirty(nilfs->ns_cpfile);
nilfs_mdt_clear_dirty(nilfs->ns_sufile);
nilfs_mdt_clear_dirty(nilfs_dat_inode(nilfs));
Expand Down Expand Up @@ -869,7 +869,8 @@ static int nilfs_segctor_fill_in_checkpoint(struct nilfs_sc_info *sci)
else
nilfs_checkpoint_set_minor(raw_cp);

nilfs_write_inode_common(sbi->s_ifile, &raw_cp->cp_ifile_inode, 1);
nilfs_write_inode_common(sci->sc_root->ifile,
&raw_cp->cp_ifile_inode, 1);
nilfs_cpfile_put_checkpoint(nilfs->ns_cpfile, nilfs->ns_cno, bh_cp);
return 0;

Expand All @@ -894,13 +895,12 @@ static void nilfs_fill_in_file_bmap(struct inode *ifile,
}
}

static void nilfs_segctor_fill_in_file_bmap(struct nilfs_sc_info *sci,
struct inode *ifile)
static void nilfs_segctor_fill_in_file_bmap(struct nilfs_sc_info *sci)
{
struct nilfs_inode_info *ii;

list_for_each_entry(ii, &sci->sc_dirty_files, i_dirty) {
nilfs_fill_in_file_bmap(ifile, ii);
nilfs_fill_in_file_bmap(sci->sc_root->ifile, ii);
set_bit(NILFS_I_COLLECTED, &ii->i_state);
}
}
Expand Down Expand Up @@ -1143,7 +1143,7 @@ static int nilfs_segctor_collect_blocks(struct nilfs_sc_info *sci, int mode)
sci->sc_stage.flags |= NILFS_CF_IFILE_STARTED;
/* Fall through */
case NILFS_ST_IFILE:
err = nilfs_segctor_scan_file(sci, sbi->s_ifile,
err = nilfs_segctor_scan_file(sci, sci->sc_root->ifile,
&nilfs_sc_file_ops);
if (unlikely(err))
break;
Expand Down Expand Up @@ -1984,6 +1984,7 @@ static int nilfs_segctor_check_in_files(struct nilfs_sc_info *sci,
struct nilfs_sb_info *sbi)
{
struct nilfs_inode_info *ii, *n;
struct inode *ifile = sci->sc_root->ifile;

spin_lock(&sbi->s_inode_lock);
retry:
Expand All @@ -1994,14 +1995,14 @@ static int nilfs_segctor_check_in_files(struct nilfs_sc_info *sci,

spin_unlock(&sbi->s_inode_lock);
err = nilfs_ifile_get_inode_block(
sbi->s_ifile, ii->vfs_inode.i_ino, &ibh);
ifile, ii->vfs_inode.i_ino, &ibh);
if (unlikely(err)) {
nilfs_warning(sbi->s_super, __func__,
"failed to get inode block.\n");
return err;
}
nilfs_mdt_mark_buffer_dirty(ibh);
nilfs_mdt_mark_dirty(sbi->s_ifile);
nilfs_mdt_mark_dirty(ifile);
spin_lock(&sbi->s_inode_lock);
if (likely(!ii->i_bh))
ii->i_bh = ibh;
Expand Down Expand Up @@ -2058,7 +2059,7 @@ static int nilfs_segctor_do_construct(struct nilfs_sc_info *sci, int mode)
if (unlikely(err))
goto out;

if (nilfs_test_metadata_dirty(sbi))
if (nilfs_test_metadata_dirty(nilfs, sci->sc_root))
set_bit(NILFS_SC_DIRTY, &sci->sc_flags);

if (nilfs_segctor_clean(sci))
Expand Down Expand Up @@ -2090,7 +2091,7 @@ static int nilfs_segctor_do_construct(struct nilfs_sc_info *sci, int mode)
goto failed;

if (sci->sc_stage.flags & NILFS_CF_IFILE_STARTED)
nilfs_segctor_fill_in_file_bmap(sci, sbi->s_ifile);
nilfs_segctor_fill_in_file_bmap(sci);

if (mode == SC_LSEG_SR &&
sci->sc_stage.scnt >= NILFS_ST_CPFILE) {
Expand Down Expand Up @@ -2684,7 +2685,8 @@ static void nilfs_segctor_kill_thread(struct nilfs_sc_info *sci)
/*
* Setup & clean-up functions
*/
static struct nilfs_sc_info *nilfs_segctor_new(struct nilfs_sb_info *sbi)
static struct nilfs_sc_info *nilfs_segctor_new(struct nilfs_sb_info *sbi,
struct nilfs_root *root)
{
struct nilfs_sc_info *sci;

Expand All @@ -2695,6 +2697,9 @@ static struct nilfs_sc_info *nilfs_segctor_new(struct nilfs_sb_info *sbi)
sci->sc_sbi = sbi;
sci->sc_super = sbi->s_super;

nilfs_get_root(root);
sci->sc_root = root;

init_waitqueue_head(&sci->sc_wait_request);
init_waitqueue_head(&sci->sc_wait_daemon);
init_waitqueue_head(&sci->sc_wait_task);
Expand Down Expand Up @@ -2769,6 +2774,8 @@ static void nilfs_segctor_destroy(struct nilfs_sc_info *sci)
WARN_ON(!list_empty(&sci->sc_segbufs));
WARN_ON(!list_empty(&sci->sc_write_logs));

nilfs_put_root(sci->sc_root);

down_write(&sbi->s_nilfs->ns_segctor_sem);

del_timer_sync(&sci->sc_timer);
Expand All @@ -2778,6 +2785,7 @@ static void nilfs_segctor_destroy(struct nilfs_sc_info *sci)
/**
* nilfs_attach_segment_constructor - attach a segment constructor
* @sbi: nilfs_sb_info
* @root: root object of the current filesystem tree
*
* nilfs_attach_segment_constructor() allocates a struct nilfs_sc_info,
* initializes it, and starts the segment constructor.
Expand All @@ -2787,7 +2795,8 @@ static void nilfs_segctor_destroy(struct nilfs_sc_info *sci)
*
* %-ENOMEM - Insufficient memory available.
*/
int nilfs_attach_segment_constructor(struct nilfs_sb_info *sbi)
int nilfs_attach_segment_constructor(struct nilfs_sb_info *sbi,
struct nilfs_root *root)
{
struct the_nilfs *nilfs = sbi->s_nilfs;
int err;
Expand All @@ -2801,7 +2810,7 @@ int nilfs_attach_segment_constructor(struct nilfs_sb_info *sbi)
nilfs_detach_segment_constructor(sbi);
}

sbi->s_sc_info = nilfs_segctor_new(sbi);
sbi->s_sc_info = nilfs_segctor_new(sbi, root);
if (!sbi->s_sc_info)
return -ENOMEM;

Expand Down
7 changes: 6 additions & 1 deletion trunk/fs/nilfs2/segment.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,8 @@
#include <linux/nilfs2_fs.h>
#include "sb.h"

struct nilfs_root;

/**
* struct nilfs_recovery_info - Recovery information
* @ri_need_recovery: Recovery status
Expand Down Expand Up @@ -87,6 +89,7 @@ struct nilfs_segsum_pointer {
* struct nilfs_sc_info - Segment constructor information
* @sc_super: Back pointer to super_block struct
* @sc_sbi: Back pointer to nilfs_sb_info struct
* @sc_root: root object of the current filesystem tree
* @sc_nblk_inc: Block count of current generation
* @sc_dirty_files: List of files to be written
* @sc_gc_inodes: List of GC inodes having blocks to be written
Expand Down Expand Up @@ -129,6 +132,7 @@ struct nilfs_segsum_pointer {
struct nilfs_sc_info {
struct super_block *sc_super;
struct nilfs_sb_info *sc_sbi;
struct nilfs_root *sc_root;

unsigned long sc_nblk_inc;

Expand Down Expand Up @@ -231,7 +235,8 @@ extern void nilfs_flush_segment(struct super_block *, ino_t);
extern int nilfs_clean_segments(struct super_block *, struct nilfs_argv *,
void **);

extern int nilfs_attach_segment_constructor(struct nilfs_sb_info *);
int nilfs_attach_segment_constructor(struct nilfs_sb_info *sbi,
struct nilfs_root *root);
extern void nilfs_detach_segment_constructor(struct nilfs_sb_info *);

/* recovery.c */
Expand Down
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