summaryrefslogtreecommitdiff
path: root/fs/nilfs2
diff options
context:
space:
mode:
authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2016-05-23 16:23:48 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-23 17:04:14 -0700
commit076a378ba6e6b6ddd5f2336aa0876349b7d36409 (patch)
tree150c71c85a086bb76e66e08e2fd0d5ee1b7db166 /fs/nilfs2
parent80d6505232ec2476eef8d988ea98ac81eb2e0975 (diff)
nilfs2: fix block comments
This fixes block comments with proper formatting to eliminate the following checkpatch.pl warnings: "WARNING: Block comments use * on subsequent lines" "WARNING: Block comments use a trailing */ on a separate line" Link: http://lkml.kernel.org/r/1462886671-3521-8-git-send-email-konishi.ryusuke@lab.ntt.co.jp 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>
Diffstat (limited to 'fs/nilfs2')
-rw-r--r--fs/nilfs2/alloc.c12
-rw-r--r--fs/nilfs2/bmap.h12
-rw-r--r--fs/nilfs2/cpfile.c6
-rw-r--r--fs/nilfs2/ifile.c6
-rw-r--r--fs/nilfs2/inode.c73
-rw-r--r--fs/nilfs2/nilfs.h24
-rw-r--r--fs/nilfs2/recovery.c14
-rw-r--r--fs/nilfs2/segment.c56
-rw-r--r--fs/nilfs2/segment.h34
-rw-r--r--fs/nilfs2/the_nilfs.c6
10 files changed, 159 insertions, 84 deletions
diff --git a/fs/nilfs2/alloc.c b/fs/nilfs2/alloc.c
index 698f582d69af..1a85d94f5b25 100644
--- a/fs/nilfs2/alloc.c
+++ b/fs/nilfs2/alloc.c
@@ -68,13 +68,17 @@ int nilfs_palloc_init_blockgroup(struct inode *inode, unsigned int entry_size)
mi->mi_blocks_per_group =
DIV_ROUND_UP(nilfs_palloc_entries_per_group(inode),
mi->mi_entries_per_block) + 1;
- /* Number of blocks in a group including entry blocks and
- a bitmap block */
+ /*
+ * Number of blocks in a group including entry blocks
+ * and a bitmap block
+ */
mi->mi_blocks_per_desc_block =
nilfs_palloc_groups_per_desc_block(inode) *
mi->mi_blocks_per_group + 1;
- /* Number of blocks per descriptor including the
- descriptor block */
+ /*
+ * Number of blocks per descriptor including the
+ * descriptor block
+ */
return 0;
}
diff --git a/fs/nilfs2/bmap.h b/fs/nilfs2/bmap.h
index a6852807b22c..b6a4c8f93ac8 100644
--- a/fs/nilfs2/bmap.h
+++ b/fs/nilfs2/bmap.h
@@ -122,10 +122,14 @@ struct nilfs_bmap {
/* pointer type */
#define NILFS_BMAP_PTR_P 0 /* physical block number (i.e. LBN) */
-#define NILFS_BMAP_PTR_VS 1 /* virtual block number (single
- version) */
-#define NILFS_BMAP_PTR_VM 2 /* virtual block number (has multiple
- versions) */
+#define NILFS_BMAP_PTR_VS 1 /*
+ * virtual block number (single
+ * version)
+ */
+#define NILFS_BMAP_PTR_VM 2 /*
+ * virtual block number (has multiple
+ * versions)
+ */
#define NILFS_BMAP_PTR_U (-1) /* never perform pointer operations */
#define NILFS_BMAP_USE_VBN(bmap) ((bmap)->b_ptr_type > 0)
diff --git a/fs/nilfs2/cpfile.c b/fs/nilfs2/cpfile.c
index b61c3e0eb342..8a3d3b65af3f 100644
--- a/fs/nilfs2/cpfile.c
+++ b/fs/nilfs2/cpfile.c
@@ -870,8 +870,10 @@ int nilfs_cpfile_is_snapshot(struct inode *cpfile, __u64 cno)
void *kaddr;
int ret;
- /* CP number is invalid if it's zero or larger than the
- largest exist one.*/
+ /*
+ * CP number is invalid if it's zero or larger than the
+ * largest existing one.
+ */
if (cno == 0 || cno >= nilfs_mdt_cno(cpfile))
return -ENOENT;
down_read(&NILFS_MDT(cpfile)->mi_sem);
diff --git a/fs/nilfs2/ifile.c b/fs/nilfs2/ifile.c
index d9048f6a7780..1d2b1805327a 100644
--- a/fs/nilfs2/ifile.c
+++ b/fs/nilfs2/ifile.c
@@ -64,8 +64,10 @@ int nilfs_ifile_create_inode(struct inode *ifile, ino_t *out_ino,
struct nilfs_palloc_req req;
int ret;
- req.pr_entry_nr = 0; /* 0 says find free inode from beginning of
- a group. dull code!! */
+ req.pr_entry_nr = 0; /*
+ * 0 says find free inode from beginning
+ * of a group. dull code!!
+ */
req.pr_entry_bh = NULL;
ret = nilfs_palloc_prepare_alloc_entry(ifile, &req);
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 83d2c485efba..a0ebdb17e912 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -129,11 +129,14 @@ int nilfs_get_block(struct inode *inode, sector_t blkoff,
/* Error handling should be detailed */
set_buffer_new(bh_result);
set_buffer_delay(bh_result);
- map_bh(bh_result, inode->i_sb, 0); /* dbn must be changed
- to proper value */
+ map_bh(bh_result, inode->i_sb, 0);
+ /* Disk block number must be changed to proper value */
+
} else if (ret == -ENOENT) {
- /* not found is not error (e.g. hole); must return without
- the mapped state flag. */
+ /*
+ * not found is not error (e.g. hole); must return without
+ * the mapped state flag.
+ */
;
} else {
err = ret;
@@ -395,23 +398,26 @@ struct inode *nilfs_new_inode(struct inode *dir, umode_t mode)
err = nilfs_init_acl(inode, dir);
if (unlikely(err))
- goto failed_after_creation; /* never occur. When supporting
- nilfs_init_acl(), proper cancellation of
- above jobs should be considered */
+ /*
+ * Never occur. When supporting nilfs_init_acl(),
+ * proper cancellation of above jobs should be considered.
+ */
+ goto failed_after_creation;
return inode;
failed_after_creation:
clear_nlink(inode);
unlock_new_inode(inode);
- iput(inode); /* raw_inode will be deleted through
- nilfs_evict_inode() */
+ iput(inode); /*
+ * raw_inode will be deleted through
+ * nilfs_evict_inode().
+ */
goto failed;
failed_ifile_create_inode:
make_bad_inode(inode);
- iput(inode); /* if i_nlink == 1, generic_forget_inode() will be
- called */
+ iput(inode);
failed:
return ERR_PTR(err);
}
@@ -662,8 +668,10 @@ void nilfs_write_inode_common(struct inode *inode,
else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode))
raw_inode->i_device_code =
cpu_to_le64(huge_encode_dev(inode->i_rdev));
- /* When extending inode, nilfs->ns_inode_size should be checked
- for substitutions of appended fields */
+ /*
+ * When extending inode, nilfs->ns_inode_size should be checked
+ * for substitutions of appended fields.
+ */
}
void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh, int flags)
@@ -681,9 +689,12 @@ void nilfs_update_inode(struct inode *inode, struct buffer_head *ibh, int flags)
set_bit(NILFS_I_INODE_SYNC, &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 */
+ /*
+ * 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(ifile, ino, ibh);
}
@@ -748,8 +759,10 @@ void nilfs_truncate(struct inode *inode)
nilfs_mark_inode_dirty(inode);
nilfs_set_file_dirty(inode, 0);
nilfs_transaction_commit(sb);
- /* May construct a logical segment and may fail in sync mode.
- But truncate has no return value. */
+ /*
+ * May construct a logical segment and may fail in sync mode.
+ * But truncate has no return value.
+ */
}
static void nilfs_clear_inode(struct inode *inode)
@@ -806,8 +819,10 @@ void nilfs_evict_inode(struct inode *inode)
if (IS_SYNC(inode))
nilfs_set_transaction_flag(NILFS_TI_SYNC);
nilfs_transaction_commit(sb);
- /* May construct a logical segment and may fail in sync mode.
- But delete_inode has no return value. */
+ /*
+ * May construct a logical segment and may fail in sync mode.
+ * But delete_inode has no return value.
+ */
}
int nilfs_setattr(struct dentry *dentry, struct iattr *iattr)
@@ -915,17 +930,23 @@ int nilfs_set_file_dirty(struct inode *inode, unsigned int nr_dirty)
spin_lock(&nilfs->ns_inode_lock);
if (!test_bit(NILFS_I_QUEUED, &ii->i_state) &&
!test_bit(NILFS_I_BUSY, &ii->i_state)) {
- /* Because this routine may race with nilfs_dispose_list(),
- we have to check NILFS_I_QUEUED here, too. */
+ /*
+ * Because this routine may race with nilfs_dispose_list(),
+ * we have to check NILFS_I_QUEUED here, too.
+ */
if (list_empty(&ii->i_dirty) && igrab(inode) == NULL) {
- /* This will happen when somebody is freeing
- this inode. */
+ /*
+ * This will happen when somebody is freeing
+ * this inode.
+ */
nilfs_warning(inode->i_sb, __func__,
"cannot get inode (ino=%lu)",
inode->i_ino);
spin_unlock(&nilfs->ns_inode_lock);
- return -EINVAL; /* NILFS_I_DIRTY may remain for
- freeing inode */
+ return -EINVAL; /*
+ * NILFS_I_DIRTY may remain for
+ * freeing inode.
+ */
}
list_move_tail(&ii->i_dirty, &nilfs->ns_dirty_files);
set_bit(NILFS_I_QUEUED, &ii->i_state);
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index ea320315d557..b1d48bc0532d 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -64,8 +64,10 @@ struct nilfs_inode_info {
*/
struct rw_semaphore xattr_sem;
#endif
- struct buffer_head *i_bh; /* i_bh contains a new or dirty
- disk inode */
+ struct buffer_head *i_bh; /*
+ * i_bh contains a new or dirty
+ * disk inode.
+ */
struct nilfs_root *i_root;
struct inode vfs_inode;
};
@@ -95,8 +97,10 @@ enum {
NILFS_I_NEW = 0, /* Inode is newly created */
NILFS_I_DIRTY, /* The file is dirty */
NILFS_I_QUEUED, /* inode is in dirty_files list */
- NILFS_I_BUSY, /* inode is grabbed by a segment
- constructor */
+ NILFS_I_BUSY, /*
+ * Inode is grabbed by a segment
+ * constructor
+ */
NILFS_I_COLLECTED, /* All dirty blocks are collected */
NILFS_I_UPDATED, /* The file has been written back */
NILFS_I_INODE_SYNC, /* dsync is not allowed for inode */
@@ -140,8 +144,10 @@ enum {
struct nilfs_transaction_info {
u32 ti_magic;
void *ti_save;
- /* This should never used. If this happens,
- one of other filesystems has a bug. */
+ /*
+ * This should never be used. If it happens,
+ * one of other filesystems has a bug.
+ */
unsigned short ti_flags;
unsigned short ti_count;
};
@@ -151,8 +157,10 @@ struct nilfs_transaction_info {
/* ti_flags */
#define NILFS_TI_DYNAMIC_ALLOC 0x0001 /* Allocated from slab */
-#define NILFS_TI_SYNC 0x0002 /* Force to construct segment at the
- end of transaction. */
+#define NILFS_TI_SYNC 0x0002 /*
+ * Force to construct segment at the
+ * end of transaction.
+ */
#define NILFS_TI_GC 0x0004 /* GC context */
#define NILFS_TI_COMMIT 0x0008 /* Change happened or not */
#define NILFS_TI_WRITER 0x0010 /* Constructor context */
diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
index db156a199149..d893dc912b62 100644
--- a/fs/nilfs2/recovery.c
+++ b/fs/nilfs2/recovery.c
@@ -43,8 +43,10 @@ enum {
/* work structure for recovery */
struct nilfs_recovery_block {
- ino_t ino; /* Inode number of the file that this block
- belongs to */
+ ino_t ino; /*
+ * Inode number of the file that this block
+ * belongs to
+ */
sector_t blocknr; /* block number */
__u64 vblocknr; /* virtual block number */
unsigned long blkoff; /* File offset of the data block (per block) */
@@ -869,9 +871,11 @@ int nilfs_search_super_root(struct the_nilfs *nilfs,
flags = le16_to_cpu(sum->ss_flags);
if (!(flags & NILFS_SS_SR) && !scan_newer) {
- /* This will never happen because a superblock
- (last_segment) always points to a pseg
- having a super root. */
+ /*
+ * This will never happen because a superblock
+ * (last_segment) always points to a pseg with
+ * a super root.
+ */
ret = NILFS_SEG_FAIL_CONSISTENCY;
goto failed;
}
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index c9ee03c262ea..e78b68a81aec 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -45,18 +45,26 @@
*/
#define SC_N_INODEVEC 16 /* Size of locally allocated inode vector */
-#define SC_MAX_SEGDELTA 64 /* Upper limit of the number of segments
- appended in collection retry loop */
+#define SC_MAX_SEGDELTA 64 /*
+ * Upper limit of the number of segments
+ * appended in collection retry loop
+ */
/* Construction mode */
enum {
SC_LSEG_SR = 1, /* Make a logical segment having a super root */
- SC_LSEG_DSYNC, /* Flush data blocks of a given file and make
- a logical segment without a super root */
- SC_FLUSH_FILE, /* Flush data files, leads to segment writes without
- creating a checkpoint */
- SC_FLUSH_DAT, /* Flush DAT file. This also creates segments without
- a checkpoint */
+ SC_LSEG_DSYNC, /*
+ * Flush data blocks of a given file and make
+ * a logical segment without a super root.
+ */
+ SC_FLUSH_FILE, /*
+ * Flush data files, leads to segment writes without
+ * creating a checkpoint.
+ */
+ SC_FLUSH_DAT, /*
+ * Flush DAT file. This also creates segments
+ * without a checkpoint.
+ */
};
/* Stage numbers of dirty block collection */
@@ -438,8 +446,10 @@ static int nilfs_segctor_feed_segment(struct nilfs_sc_info *sci)
{
sci->sc_nblk_this_inc += sci->sc_curseg->sb_sum.nblocks;
if (NILFS_SEGBUF_IS_LAST(sci->sc_curseg, &sci->sc_segbufs))
- return -E2BIG; /* The current segment is filled up
- (internal code) */
+ return -E2BIG; /*
+ * The current segment is filled up
+ * (internal code)
+ */
sci->sc_curseg = NILFS_NEXT_SEGBUF(sci->sc_curseg);
return nilfs_segctor_reset_segment_buffer(sci);
}
@@ -869,9 +879,11 @@ static int nilfs_segctor_create_checkpoint(struct nilfs_sc_info *sci)
err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, nilfs->ns_cno, 1,
&raw_cp, &bh_cp);
if (likely(!err)) {
- /* The following code is duplicated with cpfile. But, it is
- needed to collect the checkpoint even if it was not newly
- created */
+ /*
+ * The following code is duplicated with cpfile. But, it is
+ * needed to collect the checkpoint even if it was not newly
+ * created.
+ */
mark_buffer_dirty(bh_cp);
nilfs_mdt_mark_dirty(nilfs->ns_cpfile);
nilfs_cpfile_put_checkpoint(
@@ -1400,8 +1412,10 @@ static void nilfs_free_incomplete_logs(struct list_head *logs,
if (atomic_read(&segbuf->sb_err)) {
/* Case 1: The first segment failed */
if (segbuf->sb_pseg_start != segbuf->sb_fseg_start)
- /* Case 1a: Partial segment appended into an existing
- segment */
+ /*
+ * Case 1a: Partial segment appended into an existing
+ * segment
+ */
nilfs_terminate_segment(nilfs, segbuf->sb_fseg_start,
segbuf->sb_fseg_end);
else /* Case 1b: New full segment */
@@ -1625,8 +1639,10 @@ static int nilfs_segctor_assign(struct nilfs_sc_info *sci, int mode)
static void nilfs_begin_page_io(struct page *page)
{
if (!page || PageWriteback(page))
- /* For split b-tree node pages, this function may be called
- twice. We ignore the 2nd or later calls by this check. */
+ /*
+ * For split b-tree node pages, this function may be called
+ * twice. We ignore the 2nd or later calls by this check.
+ */
return;
lock_page(page);
@@ -2679,8 +2695,10 @@ static void nilfs_segctor_write_out(struct nilfs_sc_info *sci)
{
int ret, retrycount = NILFS_SC_CLEANUP_RETRY;
- /* The segctord thread was stopped and its timer was removed.
- But some tasks remain. */
+ /*
+ * The segctord thread was stopped and its timer was removed.
+ * But some tasks remain.
+ */
do {
struct nilfs_transaction_info ti;
diff --git a/fs/nilfs2/segment.h b/fs/nilfs2/segment.h
index 27822e760d3f..6565c10b7b76 100644
--- a/fs/nilfs2/segment.h
+++ b/fs/nilfs2/segment.h
@@ -189,11 +189,15 @@ enum {
NILFS_SC_DIRTY, /* One or more dirty meta-data blocks exist */
NILFS_SC_UNCLOSED, /* Logical segment is not closed */
NILFS_SC_SUPER_ROOT, /* The latest segment has a super root */
- NILFS_SC_PRIOR_FLUSH, /* Requesting immediate flush without making a
- checkpoint */
- NILFS_SC_HAVE_DELTA, /* Next checkpoint will have update of files
- other than DAT, cpfile, sufile, or files
- moved by GC */
+ NILFS_SC_PRIOR_FLUSH, /*
+ * Requesting immediate flush without making a
+ * checkpoint
+ */
+ NILFS_SC_HAVE_DELTA, /*
+ * Next checkpoint will have update of files
+ * other than DAT, cpfile, sufile, or files
+ * moved by GC.
+ */
};
/* sc_state */
@@ -203,17 +207,23 @@ enum {
/*
* Constant parameters
*/
-#define NILFS_SC_CLEANUP_RETRY 3 /* Retry count of construction when
- destroying segctord */
+#define NILFS_SC_CLEANUP_RETRY 3 /*
+ * Retry count of construction when
+ * destroying segctord
+ */
/*
* Default values of timeout, in seconds.
*/
-#define NILFS_SC_DEFAULT_TIMEOUT 5 /* Timeout value of dirty blocks.
- It triggers construction of a
- logical segment with a super root */
-#define NILFS_SC_DEFAULT_SR_FREQ 30 /* Maximum frequency of super root
- creation */
+#define NILFS_SC_DEFAULT_TIMEOUT 5 /*
+ * Timeout value of dirty blocks.
+ * It triggers construction of a
+ * logical segment with a super root.
+ */
+#define NILFS_SC_DEFAULT_SR_FREQ 30 /*
+ * Maximum frequency of super root
+ * creation
+ */
/*
* The default threshold amount of data, in block counts.
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index b9e19ca3c96e..809bd2de7ad0 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -617,8 +617,10 @@ int init_nilfs(struct the_nilfs *nilfs, struct super_block *sb, char *data)
err = nilfs_load_super_block(nilfs, sb, blocksize, &sbp);
if (err)
goto out;
- /* not failed_sbh; sbh is released automatically
- when reloading fails. */
+ /*
+ * Not to failed_sbh; sbh is released automatically
+ * when reloading fails.
+ */
}
nilfs->ns_blocksize_bits = sb->s_blocksize_bits;
nilfs->ns_blocksize = blocksize;