xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Btrfs: many file_write fixes, inline data

Browse Source 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-04-19 13:37:44 -04:00
committed by David Woodhouse
parent a429e51371
commit 236454dfff
5 changed files with 484 additions and 116 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
fs/btrfs/ctree.h
View File

@@ -73,6 +73,9 @@ struct btrfs_header {
(sizeof(struct btrfs_disk_key) + sizeof(u64)))
#define __BTRFS_LEAF_DATA_SIZE(bs) ((bs) - sizeof(struct btrfs_header))
#define BTRFS_LEAF_DATA_SIZE(r) (__BTRFS_LEAF_DATA_SIZE(r->blocksize))
#define BTRFS_MAX_INLINE_DATA_SIZE(r) (BTRFS_LEAF_DATA_SIZE(r) - \
sizeof(struct btrfs_item) - \
sizeof(struct btrfs_file_extent_item))
struct buffer_head;
/*
@@ -204,8 +207,12 @@ struct btrfs_root_item {
__le32 refs;
} __attribute__ ((__packed__));
#define BTRFS_FILE_EXTENT_REG 0
#define BTRFS_FILE_EXTENT_INLINE 1
struct btrfs_file_extent_item {
__le64 generation;
u8 type;
/*
* disk space consumed by the extent, checksum blocks are included
* in these numbers
@@ -862,6 +869,34 @@ static inline u8 *btrfs_leaf_data(struct btrfs_leaf *l)
return (u8 *)l->items;
}
static inline int btrfs_file_extent_type(struct btrfs_file_extent_item *e)
{
return e->type;
}
static inline void btrfs_set_file_extent_type(struct btrfs_file_extent_item *e,
u8 val)
{
e->type = val;
}
static inline char *btrfs_file_extent_inline_start(struct
btrfs_file_extent_item *e)
{
return (char *)(&e->disk_blocknr);
}
static inline u32 btrfs_file_extent_calc_inline_size(u32 datasize)
{
return (unsigned long)(&((struct
btrfs_file_extent_item *)NULL)->disk_blocknr) + datasize;
}
static inline u32 btrfs_file_extent_inline_len(struct btrfs_item *e)
{
struct btrfs_file_extent_item *fe = NULL;
return btrfs_item_size(e) - (unsigned long)(&fe->disk_blocknr);
}
static inline u64 btrfs_file_extent_disk_blocknr(struct btrfs_file_extent_item
*e)
{