From 7a6c76b1b2f2c9555571647f07fc7ccada0a1b0a Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Fri, 11 Jul 2014 18:35:43 +0800
Subject: f2fs: cleanup the needless return of f2fs_create_root_stats

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/debug.c | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

(limited to 'fs/f2fs/debug.c')

diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index b52c12cf5873..3f99266ccc17 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -345,21 +345,14 @@ void __init f2fs_create_root_stats(void)
 
 	f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
 	if (!f2fs_debugfs_root)
-		goto bail;
+		return;
 
 	file = debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root,
 			NULL, &stat_fops);
-	if (!file)
-		goto free_debugfs_dir;
-
-	return;
-
-free_debugfs_dir:
-	debugfs_remove(f2fs_debugfs_root);
-
-bail:
-	f2fs_debugfs_root = NULL;
-	return;
+	if (!file) {
+		debugfs_remove(f2fs_debugfs_root);
+		f2fs_debugfs_root = NULL;
+	}
 }
 
 void f2fs_destroy_root_stats(void)
-- 
cgit v1.2.3


From 6451e041c8d39daf39c71eefe839641c2093713e Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Fri, 25 Jul 2014 15:47:17 -0700
Subject: f2fs: add infra for ino management

This patch changes the naming of orphan-related data structures to use as
inode numbers managed globally.
Later, we can use this facility for managing any inode number lists.

Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/checkpoint.c | 76 +++++++++++++++++++++++++++-------------------------
 fs/f2fs/debug.c      |  2 +-
 fs/f2fs/f2fs.h       | 19 ++++++++-----
 fs/f2fs/super.c      |  2 +-
 4 files changed, 55 insertions(+), 44 deletions(-)

(limited to 'fs/f2fs/debug.c')

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 1c6eb6bcfd99..f93d154e2770 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -22,7 +22,7 @@
 #include "segment.h"
 #include <trace/events/f2fs.h>
 
-static struct kmem_cache *orphan_entry_slab;
+static struct kmem_cache *ino_entry_slab;
 static struct kmem_cache *inode_entry_slab;
 
 /*
@@ -282,19 +282,18 @@ const struct address_space_operations f2fs_meta_aops = {
 	.set_page_dirty	= f2fs_set_meta_page_dirty,
 };
 
-static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino)
+static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type)
 {
-	struct list_head *head;
-	struct orphan_inode_entry *new, *e;
+	struct ino_entry *new, *e;
 
-	new = f2fs_kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC);
+	new = f2fs_kmem_cache_alloc(ino_entry_slab, GFP_ATOMIC);
 	new->ino = ino;
 
-	spin_lock(&sbi->orphan_inode_lock);
-	list_for_each_entry(e, &sbi->orphan_inode_list, list) {
+	spin_lock(&sbi->ino_lock[type]);
+	list_for_each_entry(e, &sbi->ino_list[type], list) {
 		if (e->ino == ino) {
-			spin_unlock(&sbi->orphan_inode_lock);
-			kmem_cache_free(orphan_entry_slab, new);
+			spin_unlock(&sbi->ino_lock[type]);
+			kmem_cache_free(ino_entry_slab, new);
 			return;
 		}
 		if (e->ino > ino)
@@ -303,58 +302,58 @@ static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino)
 
 	/* add new entry into list which is sorted by inode number */
 	list_add_tail(&new->list, &e->list);
-	spin_unlock(&sbi->orphan_inode_lock);
+	spin_unlock(&sbi->ino_lock[type]);
 }
 
-static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino)
+static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type)
 {
-	struct orphan_inode_entry *e;
+	struct ino_entry *e;
 
-	spin_lock(&sbi->orphan_inode_lock);
-	list_for_each_entry(e, &sbi->orphan_inode_list, list) {
+	spin_lock(&sbi->ino_lock[type]);
+	list_for_each_entry(e, &sbi->ino_list[type], list) {
 		if (e->ino == ino) {
 			list_del(&e->list);
 			sbi->n_orphans--;
-			spin_unlock(&sbi->orphan_inode_lock);
-			kmem_cache_free(orphan_entry_slab, e);
+			spin_unlock(&sbi->ino_lock[type]);
+			kmem_cache_free(ino_entry_slab, e);
 			return;
 		}
 	}
-	spin_unlock(&sbi->orphan_inode_lock);
+	spin_unlock(&sbi->ino_lock[type]);
 }
 
 int acquire_orphan_inode(struct f2fs_sb_info *sbi)
 {
 	int err = 0;
 
-	spin_lock(&sbi->orphan_inode_lock);
+	spin_lock(&sbi->ino_lock[ORPHAN_INO]);
 	if (unlikely(sbi->n_orphans >= sbi->max_orphans))
 		err = -ENOSPC;
 	else
 		sbi->n_orphans++;
-	spin_unlock(&sbi->orphan_inode_lock);
+	spin_unlock(&sbi->ino_lock[ORPHAN_INO]);
 
 	return err;
 }
 
 void release_orphan_inode(struct f2fs_sb_info *sbi)
 {
-	spin_lock(&sbi->orphan_inode_lock);
+	spin_lock(&sbi->ino_lock[ORPHAN_INO]);
 	f2fs_bug_on(sbi->n_orphans == 0);
 	sbi->n_orphans--;
-	spin_unlock(&sbi->orphan_inode_lock);
+	spin_unlock(&sbi->ino_lock[ORPHAN_INO]);
 }
 
 void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
 {
 	/* add new orphan entry into list which is sorted by inode number */
-	__add_ino_entry(sbi, ino);
+	__add_ino_entry(sbi, ino, ORPHAN_INO);
 }
 
 void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
 {
 	/* remove orphan entry from orphan list */
-	__remove_ino_entry(sbi, ino);
+	__remove_ino_entry(sbi, ino, ORPHAN_INO);
 }
 
 static void recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
@@ -408,14 +407,14 @@ static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk)
 	unsigned short orphan_blocks = (unsigned short)((sbi->n_orphans +
 		(F2FS_ORPHANS_PER_BLOCK - 1)) / F2FS_ORPHANS_PER_BLOCK);
 	struct page *page = NULL;
-	struct orphan_inode_entry *orphan = NULL;
+	struct ino_entry *orphan = NULL;
 
 	for (index = 0; index < orphan_blocks; index++)
 		grab_meta_page(sbi, start_blk + index);
 
 	index = 1;
-	spin_lock(&sbi->orphan_inode_lock);
-	head = &sbi->orphan_inode_list;
+	spin_lock(&sbi->ino_lock[ORPHAN_INO]);
+	head = &sbi->ino_list[ORPHAN_INO];
 
 	/* loop for each orphan inode entry and write them in Jornal block */
 	list_for_each_entry(orphan, head, list) {
@@ -455,7 +454,7 @@ static void write_orphan_inodes(struct f2fs_sb_info *sbi, block_t start_blk)
 		f2fs_put_page(page, 1);
 	}
 
-	spin_unlock(&sbi->orphan_inode_lock);
+	spin_unlock(&sbi->ino_lock[ORPHAN_INO]);
 }
 
 static struct page *validate_checkpoint(struct f2fs_sb_info *sbi,
@@ -939,31 +938,36 @@ void write_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
 	trace_f2fs_write_checkpoint(sbi->sb, is_umount, "finish checkpoint");
 }
 
-void init_orphan_info(struct f2fs_sb_info *sbi)
+void init_ino_entry_info(struct f2fs_sb_info *sbi)
 {
-	spin_lock_init(&sbi->orphan_inode_lock);
-	INIT_LIST_HEAD(&sbi->orphan_inode_list);
-	sbi->n_orphans = 0;
+	int i;
+
+	for (i = 0; i < MAX_INO_ENTRY; i++) {
+		spin_lock_init(&sbi->ino_lock[i]);
+		INIT_LIST_HEAD(&sbi->ino_list[i]);
+	}
+
 	/*
 	 * considering 512 blocks in a segment 8 blocks are needed for cp
 	 * and log segment summaries. Remaining blocks are used to keep
 	 * orphan entries with the limitation one reserved segment
 	 * for cp pack we can have max 1020*504 orphan entries
 	 */
+	sbi->n_orphans = 0;
 	sbi->max_orphans = (sbi->blocks_per_seg - 2 - NR_CURSEG_TYPE)
 				* F2FS_ORPHANS_PER_BLOCK;
 }
 
 int __init create_checkpoint_caches(void)
 {
-	orphan_entry_slab = f2fs_kmem_cache_create("f2fs_orphan_entry",
-			sizeof(struct orphan_inode_entry));
-	if (!orphan_entry_slab)
+	ino_entry_slab = f2fs_kmem_cache_create("f2fs_ino_entry",
+			sizeof(struct ino_entry));
+	if (!ino_entry_slab)
 		return -ENOMEM;
 	inode_entry_slab = f2fs_kmem_cache_create("f2fs_dirty_dir_entry",
 			sizeof(struct dir_inode_entry));
 	if (!inode_entry_slab) {
-		kmem_cache_destroy(orphan_entry_slab);
+		kmem_cache_destroy(ino_entry_slab);
 		return -ENOMEM;
 	}
 	return 0;
@@ -971,6 +975,6 @@ int __init create_checkpoint_caches(void)
 
 void destroy_checkpoint_caches(void)
 {
-	kmem_cache_destroy(orphan_entry_slab);
+	kmem_cache_destroy(ino_entry_slab);
 	kmem_cache_destroy(inode_entry_slab);
 }
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 3f99266ccc17..a441ba33be11 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -167,7 +167,7 @@ get_cache:
 	si->cache_mem += npages << PAGE_CACHE_SHIFT;
 	npages = META_MAPPING(sbi)->nrpages;
 	si->cache_mem += npages << PAGE_CACHE_SHIFT;
-	si->cache_mem += sbi->n_orphans * sizeof(struct orphan_inode_entry);
+	si->cache_mem += sbi->n_orphans * sizeof(struct ino_entry);
 	si->cache_mem += sbi->n_dirty_dirs * sizeof(struct dir_inode_entry);
 }
 
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index e999eec200b7..b6fa6ec54f98 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -100,8 +100,13 @@ enum {
 	META_SSA
 };
 
-/* for the list of orphan inodes */
-struct orphan_inode_entry {
+/* for the list of ino */
+enum {
+	ORPHAN_INO,		/* for orphan ino list */
+	MAX_INO_ENTRY,		/* max. list */
+};
+
+struct ino_entry {
 	struct list_head list;	/* list head */
 	nid_t ino;		/* inode number */
 };
@@ -450,9 +455,11 @@ struct f2fs_sb_info {
 	bool por_doing;				/* recovery is doing or not */
 	wait_queue_head_t cp_wait;
 
-	/* for orphan inode management */
-	struct list_head orphan_inode_list;	/* orphan inode list */
-	spinlock_t orphan_inode_lock;		/* for orphan inode list */
+	/* for inode management */
+	spinlock_t ino_lock[MAX_INO_ENTRY];		/* for ino entry lock */
+	struct list_head ino_list[MAX_INO_ENTRY];	/* inode list head */
+
+	/* for orphan inode, use 0'th array */
 	unsigned int n_orphans;			/* # of orphan inodes */
 	unsigned int max_orphans;		/* max orphan inodes */
 
@@ -1255,7 +1262,7 @@ void add_dirty_dir_inode(struct inode *);
 void remove_dirty_dir_inode(struct inode *);
 void sync_dirty_dir_inodes(struct f2fs_sb_info *);
 void write_checkpoint(struct f2fs_sb_info *, bool);
-void init_orphan_info(struct f2fs_sb_info *);
+void init_ino_entry_info(struct f2fs_sb_info *);
 int __init create_checkpoint_caches(void);
 void destroy_checkpoint_caches(void);
 
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 93593ceec175..f253e222dcea 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1003,7 +1003,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 	INIT_LIST_HEAD(&sbi->dir_inode_list);
 	spin_lock_init(&sbi->dir_inode_lock);
 
-	init_orphan_info(sbi);
+	init_ino_entry_info(sbi);
 
 	/* setup f2fs internal modules */
 	err = build_segment_manager(sbi);
-- 
cgit v1.2.3


From e1c42045203071c4634b89e696037357810d3083 Mon Sep 17 00:00:00 2001
From: arter97 <qkrwngud825@gmail.com>
Date: Wed, 6 Aug 2014 23:22:50 +0900
Subject: f2fs: fix typo

Fix typo and some grammatical errors.

The words "filesystem" and "readahead" are being used without the space treewide.

Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/Kconfig      |  4 ++--
 fs/f2fs/checkpoint.c |  4 ++--
 fs/f2fs/data.c       |  4 ++--
 fs/f2fs/debug.c      |  4 ++--
 fs/f2fs/dir.c        |  4 ++--
 fs/f2fs/f2fs.h       |  6 +++---
 fs/f2fs/file.c       |  2 +-
 fs/f2fs/gc.c         |  4 ++--
 fs/f2fs/gc.h         |  2 +-
 fs/f2fs/namei.c      |  2 +-
 fs/f2fs/node.c       | 14 +++++++-------
 fs/f2fs/segment.c    |  4 ++--
 fs/f2fs/segment.h    |  2 +-
 fs/f2fs/super.c      |  2 +-
 fs/f2fs/xattr.c      |  2 +-
 15 files changed, 30 insertions(+), 30 deletions(-)

(limited to 'fs/f2fs/debug.c')

diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
index 214fe1054fce..736a348509f7 100644
--- a/fs/f2fs/Kconfig
+++ b/fs/f2fs/Kconfig
@@ -23,7 +23,7 @@ config F2FS_STAT_FS
 	  mounted as f2fs. Each file shows the whole f2fs information.
 
 	  /sys/kernel/debug/f2fs/status includes:
-	    - major file system information managed by f2fs currently
+	    - major filesystem information managed by f2fs currently
 	    - average SIT information about whole segments
 	    - current memory footprint consumed by f2fs.
 
@@ -68,6 +68,6 @@ config F2FS_CHECK_FS
 	bool "F2FS consistency checking feature"
 	depends on F2FS_FS
 	help
-	  Enables BUG_ONs which check the file system consistency in runtime.
+	  Enables BUG_ONs which check the filesystem consistency in runtime.
 
 	  If you want to improve the performance, say N.
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 6aeed5bada52..7e1c13bfb99f 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -758,7 +758,7 @@ retry_flush_dents:
 	}
 
 	/*
-	 * POR: we should ensure that there is no dirty node pages
+	 * POR: we should ensure that there are no dirty node pages
 	 * until finishing nat/sit flush.
 	 */
 retry_flush_nodes:
@@ -942,7 +942,7 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
 }
 
 /*
- * We guarantee that this checkpoint procedure should not fail.
+ * We guarantee that this checkpoint procedure will not fail.
  */
 void write_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
 {
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 03313099c51c..7aef28d1fffa 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -691,7 +691,7 @@ get_next:
 			allocated = true;
 			blkaddr = dn.data_blkaddr;
 		}
-		/* Give more consecutive addresses for the read ahead */
+		/* Give more consecutive addresses for the readahead */
 		if (blkaddr == (bh_result->b_blocknr + ofs)) {
 			ofs++;
 			dn.ofs_in_node++;
@@ -739,7 +739,7 @@ static int f2fs_read_data_page(struct file *file, struct page *page)
 
 	trace_f2fs_readpage(page, DATA);
 
-	/* If the file has inline data, try to read it directlly */
+	/* If the file has inline data, try to read it directly */
 	if (f2fs_has_inline_data(inode))
 		ret = f2fs_read_inline_data(inode, page);
 	else
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index a441ba33be11..fecebdbfd781 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -32,7 +32,7 @@ static void update_general_status(struct f2fs_sb_info *sbi)
 	struct f2fs_stat_info *si = F2FS_STAT(sbi);
 	int i;
 
-	/* valid check of the segment numbers */
+	/* validation check of the segment numbers */
 	si->hit_ext = sbi->read_hit_ext;
 	si->total_ext = sbi->total_hit_ext;
 	si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);
@@ -152,7 +152,7 @@ static void update_mem_info(struct f2fs_sb_info *sbi)
 	si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(TOTAL_SEGS(sbi));
 	si->base_mem += f2fs_bitmap_size(TOTAL_SECS(sbi));
 
-	/* buld nm */
+	/* build nm */
 	si->base_mem += sizeof(struct f2fs_nm_info);
 	si->base_mem += __bitmap_size(sbi, NAT_BITMAP);
 
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index bcf893c3d903..a69bbfa90c99 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -124,7 +124,7 @@ static struct f2fs_dir_entry *find_in_block(struct page *dentry_page,
 
 		/*
 		 * For the most part, it should be a bug when name_len is zero.
-		 * We stop here for figuring out where the bugs are occurred.
+		 * We stop here for figuring out where the bugs has occurred.
 		 */
 		f2fs_bug_on(!de->name_len);
 
@@ -563,7 +563,7 @@ fail:
 }
 
 /*
- * It only removes the dentry from the dentry page,corresponding name
+ * It only removes the dentry from the dentry page, corresponding name
  * entry in name page does not need to be touched during deletion.
  */
 void f2fs_delete_entry(struct f2fs_dir_entry *dentry, struct page *page,
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 4dab5338a97a..790a0738d314 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -395,7 +395,7 @@ enum count_type {
 };
 
 /*
- * The below are the page types of bios used in submti_bio().
+ * The below are the page types of bios used in submit_bio().
  * The available types are:
  * DATA			User data pages. It operates as async mode.
  * NODE			Node pages. It operates as async mode.
@@ -470,7 +470,7 @@ struct f2fs_sb_info {
 	struct list_head dir_inode_list;	/* dir inode list */
 	spinlock_t dir_inode_lock;		/* for dir inode list lock */
 
-	/* basic file system units */
+	/* basic filesystem units */
 	unsigned int log_sectors_per_block;	/* log2 sectors per block */
 	unsigned int log_blocksize;		/* log2 block size */
 	unsigned int blocksize;			/* block size */
@@ -799,7 +799,7 @@ static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
 
 	/*
 	 * odd numbered checkpoint should at cp segment 0
-	 * and even segent must be at cp segment 1
+	 * and even segment must be at cp segment 1
 	 */
 	if (!(ckpt_version & 1))
 		start_addr += sbi->blocks_per_seg;
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 208f1a9bd569..87cdac4efeec 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -288,7 +288,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
 		if (err && err != -ENOENT) {
 			goto fail;
 		} else if (err == -ENOENT) {
-			/* direct node is not exist */
+			/* direct node does not exists */
 			if (whence == SEEK_DATA) {
 				pgofs = PGOFS_OF_NEXT_DNODE(pgofs,
 							F2FS_I(inode));
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index d7947d90ccc3..87c50c507461 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -58,7 +58,7 @@ static int gc_thread_func(void *data)
 		 * 3. IO subsystem is idle by checking the # of requests in
 		 *    bdev's request list.
 		 *
-		 * Note) We have to avoid triggering GCs too much frequently.
+		 * Note) We have to avoid triggering GCs frequently.
 		 * Because it is possible that some segments can be
 		 * invalidated soon after by user update or deletion.
 		 * So, I'd like to wait some time to collect dirty segments.
@@ -222,7 +222,7 @@ static unsigned int get_cb_cost(struct f2fs_sb_info *sbi, unsigned int segno)
 
 	u = (vblocks * 100) >> sbi->log_blocks_per_seg;
 
-	/* Handle if the system time is changed by user */
+	/* Handle if the system time has changed by the user */
 	if (mtime < sit_i->min_mtime)
 		sit_i->min_mtime = mtime;
 	if (mtime > sit_i->max_mtime)
diff --git a/fs/f2fs/gc.h b/fs/f2fs/gc.h
index 5d5eb6047bf4..16f0b2b22999 100644
--- a/fs/f2fs/gc.h
+++ b/fs/f2fs/gc.h
@@ -91,7 +91,7 @@ static inline bool has_enough_invalid_blocks(struct f2fs_sb_info *sbi)
 	block_t invalid_user_blocks = sbi->user_block_count -
 					written_block_count(sbi);
 	/*
-	 * Background GC is triggered with the following condition.
+	 * Background GC is triggered with the following conditions.
 	 * 1. There are a number of invalid blocks.
 	 * 2. There is not enough free space.
 	 */
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 27b03776ffd2..eb407d207289 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -229,7 +229,7 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
 	f2fs_delete_entry(de, page, inode);
 	f2fs_unlock_op(sbi);
 
-	/* In order to evict this inode,  we set it dirty */
+	/* In order to evict this inode, we set it dirty */
 	mark_inode_dirty(inode);
 fail:
 	trace_f2fs_unlink_exit(inode, err);
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index d3d90d284631..1f3329907483 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -237,7 +237,7 @@ retry:
 			nat_get_blkaddr(e) != NULL_ADDR &&
 			new_blkaddr == NEW_ADDR);
 
-	/* increament version no as node is removed */
+	/* increment version no as node is removed */
 	if (nat_get_blkaddr(e) != NEW_ADDR && new_blkaddr == NULL_ADDR) {
 		unsigned char version = nat_get_version(e);
 		nat_set_version(e, inc_node_version(version));
@@ -274,7 +274,7 @@ int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
 }
 
 /*
- * This function returns always success
+ * This function always returns success
  */
 void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni)
 {
@@ -650,7 +650,7 @@ static int truncate_partial_nodes(struct dnode_of_data *dn,
 
 	/* get indirect nodes in the path */
 	for (i = 0; i < idx + 1; i++) {
-		/* refernece count'll be increased */
+		/* reference count'll be increased */
 		pages[i] = get_node_page(sbi, nid[i]);
 		if (IS_ERR(pages[i])) {
 			err = PTR_ERR(pages[i]);
@@ -836,7 +836,7 @@ void remove_inode_page(struct inode *inode)
 		f2fs_put_page(page, 1);
 		return;
 	}
-	/* 0 is possible, after f2fs_new_inode() is failed */
+	/* 0 is possible, after f2fs_new_inode() has failed */
 	f2fs_bug_on(inode->i_blocks != 0 && inode->i_blocks != 1);
 	set_new_dnode(&dn, inode, page, page, ino);
 	truncate_node(&dn);
@@ -1637,7 +1637,7 @@ int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
 	if (!ipage)
 		return -ENOMEM;
 
-	/* Should not use this inode  from free nid list */
+	/* Should not use this inode from free nid list */
 	remove_free_nid(NM_I(sbi), ino);
 
 	SetPageUptodate(ipage);
@@ -1665,7 +1665,7 @@ int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page)
 
 /*
  * ra_sum_pages() merge contiguous pages into one bio and submit.
- * these pre-readed pages are alloced in bd_inode's mapping tree.
+ * these pre-read pages are allocated in bd_inode's mapping tree.
  */
 static int ra_sum_pages(struct f2fs_sb_info *sbi, struct page **pages,
 				int start, int nrpages)
@@ -1709,7 +1709,7 @@ int restore_node_summary(struct f2fs_sb_info *sbi,
 	for (i = 0; !err && i < last_offset; i += nrpages, addr += nrpages) {
 		nrpages = min(last_offset - i, bio_blocks);
 
-		/* read ahead node pages */
+		/* readahead node pages */
 		nrpages = ra_sum_pages(sbi, pages, addr, nrpages);
 		if (!nrpages)
 			return -ENOMEM;
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 0dfeebae2a50..31b630efe4db 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -62,7 +62,7 @@ static inline unsigned long __reverse_ffs(unsigned long word)
 }
 
 /*
- * __find_rev_next(_zero)_bit is copied from lib/find_next_bit.c becasue
+ * __find_rev_next(_zero)_bit is copied from lib/find_next_bit.c because
  * f2fs_set_bit makes MSB and LSB reversed in a byte.
  * Example:
  *                             LSB <--> MSB
@@ -808,7 +808,7 @@ static void __refresh_next_blkoff(struct f2fs_sb_info *sbi,
 }
 
 /*
- * This function always allocates a used segment (from dirty seglist) by SSR
+ * This function always allocates a used segment(from dirty seglist) by SSR
  * manner, so it should recover the existing segment information of valid blocks
  */
 static void change_curseg(struct f2fs_sb_info *sbi, int type, bool reuse)
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 55973f7b0330..ff483257283b 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -549,7 +549,7 @@ static inline void verify_block_addr(struct f2fs_sb_info *sbi, block_t blk_addr)
 }
 
 /*
- * Summary block is always treated as invalid block
+ * Summary block is always treated as an invalid block
  */
 static inline void check_block_count(struct f2fs_sb_info *sbi,
 		int segno, struct f2fs_sit_entry *raw_sit)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 657582fc7601..633315acfef8 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -663,7 +663,7 @@ restore_gc:
 	if (need_restart_gc) {
 		if (start_gc_thread(sbi))
 			f2fs_msg(sbi->sb, KERN_WARNING,
-				"background gc thread is stop");
+				"background gc thread has stopped");
 	} else if (need_stop_gc) {
 		stop_gc_thread(sbi);
 	}
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 8bea941ee309..728a5dc3dc16 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -528,7 +528,7 @@ static int __f2fs_setxattr(struct inode *inode, int index,
 		int free;
 		/*
 		 * If value is NULL, it is remove operation.
-		 * In case of update operation, we caculate free.
+		 * In case of update operation, we calculate free.
 		 */
 		free = MIN_OFFSET(inode) - ((char *)last - (char *)base_addr);
 		if (found)
-- 
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