提交 d4a78947 编写于 作者: W Wu Fengguang 提交者: Chris Mason

Btrfs: fix typos in comments

Signed-off-by: NChris Mason <chris.mason@oracle.com>
上级 2e966ed2
...@@ -143,12 +143,15 @@ static int btrfs_csum_sizes[] = { 4, 0 }; ...@@ -143,12 +143,15 @@ static int btrfs_csum_sizes[] = { 4, 0 };
#define BTRFS_FT_MAX 9 #define BTRFS_FT_MAX 9
/* /*
* the key defines the order in the tree, and so it also defines (optimal) * The key defines the order in the tree, and so it also defines (optimal)
* block layout. objectid corresonds to the inode number. The flags * block layout.
* tells us things about the object, and is a kind of stream selector. *
* so for a given inode, keys with flags of 1 might refer to the inode * objectid corresponds to the inode number.
* data, flags of 2 may point to file data in the btree and flags == 3 *
* may point to extents. * type tells us things about the object, and is a kind of stream selector.
* so for a given inode, keys with type of 1 might refer to the inode data,
* type of 2 may point to file data in the btree and type == 3 may point to
* extents.
* *
* offset is the starting byte offset for this key in the stream. * offset is the starting byte offset for this key in the stream.
* *
...@@ -200,7 +203,7 @@ struct btrfs_dev_item { ...@@ -200,7 +203,7 @@ struct btrfs_dev_item {
/* /*
* starting byte of this partition on the device, * starting byte of this partition on the device,
* to allowr for stripe alignment in the future * to allow for stripe alignment in the future
*/ */
__le64 start_offset; __le64 start_offset;
...@@ -958,7 +961,6 @@ struct btrfs_root { ...@@ -958,7 +961,6 @@ struct btrfs_root {
}; };
/* /*
* inode items have the data typically returned from stat and store other * inode items have the data typically returned from stat and store other
* info about object characteristics. There is one for every file and dir in * info about object characteristics. There is one for every file and dir in
* the FS * the FS
...@@ -989,7 +991,7 @@ struct btrfs_root { ...@@ -989,7 +991,7 @@ struct btrfs_root {
#define BTRFS_EXTENT_CSUM_KEY 128 #define BTRFS_EXTENT_CSUM_KEY 128
/* /*
* root items point to tree roots. There are typically in the root * root items point to tree roots. They are typically in the root
* tree used by the super block to find all the other trees * tree used by the super block to find all the other trees
*/ */
#define BTRFS_ROOT_ITEM_KEY 132 #define BTRFS_ROOT_ITEM_KEY 132
......
...@@ -60,8 +60,8 @@ void btrfs_clear_lock_blocking(struct extent_buffer *eb) ...@@ -60,8 +60,8 @@ void btrfs_clear_lock_blocking(struct extent_buffer *eb)
/* /*
* unfortunately, many of the places that currently set a lock to blocking * unfortunately, many of the places that currently set a lock to blocking
* don't end up blocking for every long, and often they don't block * don't end up blocking for very long, and often they don't block
* at all. For a dbench 50 run, if we don't spin one the blocking bit * at all. For a dbench 50 run, if we don't spin on the blocking bit
* at all, the context switch rate can jump up to 400,000/sec or more. * at all, the context switch rate can jump up to 400,000/sec or more.
* *
* So, we're still stuck with this crummy spin on the blocking bit, * So, we're still stuck with this crummy spin on the blocking bit,
......
...@@ -76,7 +76,7 @@ struct btrfs_device { ...@@ -76,7 +76,7 @@ struct btrfs_device {
struct btrfs_fs_devices { struct btrfs_fs_devices {
u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */ u8 fsid[BTRFS_FSID_SIZE]; /* FS specific uuid */
/* the device with this id has the most recent coyp of the super */ /* the device with this id has the most recent copy of the super */
u64 latest_devid; u64 latest_devid;
u64 latest_trans; u64 latest_trans;
u64 num_devices; u64 num_devices;
......
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