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Add fallocate support v2 

This patch updates btrfs-progs for fallocate support.
 
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
master
Yan Zheng 2008-10-31 12:48:02 -04:00 committed by Chris Mason
parent 0a7869d69d
commit 95470dfaf1
3 changed files with 46 additions and 24 deletions
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4
btrfsck.c
View File

@ -621,8 +621,8 @@ static int run_next_block(struct btrfs_root *root,
continue;
fi = btrfs_item_ptr(buf, i,
struct btrfs_file_extent_item);
if (btrfs_file_extent_type(buf, fi) !=
BTRFS_FILE_EXTENT_REG)
if (btrfs_file_extent_type(buf, fi) ==
BTRFS_FILE_EXTENT_INLINE)
continue;
if (btrfs_file_extent_disk_bytenr(buf, fi) == 0)
continue;

11
ctree.h
View File

@ -27,7 +27,7 @@
struct btrfs_root;
struct btrfs_trans_handle;
#define BTRFS_MAGIC "_BCRfS_M"
#define BTRFS_MAGIC "_BDRfS_M"
#define BTRFS_MAX_LEVEL 8
@ -427,6 +427,7 @@ struct btrfs_root_item {
__le64 bytenr;
__le64 byte_limit;
__le64 bytes_used;
__le64 last_snapshot;
__le32 flags;
__le32 refs;
struct btrfs_disk_key drop_progress;
@ -434,8 +435,9 @@ struct btrfs_root_item {
u8 level;
} __attribute__ ((__packed__));
#define BTRFS_FILE_EXTENT_REG 0
#define BTRFS_FILE_EXTENT_INLINE 1
#define BTRFS_FILE_EXTENT_INLINE 0
#define BTRFS_FILE_EXTENT_REG 1
#define BTRFS_FILE_EXTENT_PREALLOC 2
struct btrfs_file_extent_item {
/*
@ -1251,6 +1253,9 @@ BTRFS_SETGET_STACK_FUNCS(root_refs, struct btrfs_root_item, refs, 32);
BTRFS_SETGET_STACK_FUNCS(root_flags, struct btrfs_root_item, flags, 32);
BTRFS_SETGET_STACK_FUNCS(root_used, struct btrfs_root_item, bytes_used, 64);
BTRFS_SETGET_STACK_FUNCS(root_limit, struct btrfs_root_item, byte_limit, 64);
BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item,
last_snapshot, 64);
/* struct btrfs_super_block */
BTRFS_SETGET_STACK_FUNCS(super_bytenr, struct btrfs_super_block, bytenr, 64);

55
print-tree.c
View File

@ -124,6 +124,41 @@ static void print_uuids(struct extent_buffer *eb)
printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
}
static void print_file_extent_item(struct extent_buffer *eb,
struct btrfs_item *item,
struct btrfs_file_extent_item *fi)
{
int extent_type = btrfs_file_extent_type(eb, fi);
if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
printf("\t\tinline extent data size %u "
"ram %llu compress %d\n",
btrfs_file_extent_inline_len(eb, item),
(unsigned long long) btrfs_file_extent_ram_bytes(eb, fi),
btrfs_file_extent_compression(eb, fi));
return;
}
if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
printf("\t\tprealloc data disk byte %llu nr %llu\n",
(unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
(unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
printf("\t\tprealloc data offset %llu nr %llu\n",
(unsigned long long)btrfs_file_extent_offset(eb, fi),
(unsigned long long)btrfs_file_extent_num_bytes(eb, fi));
return;
}
printf("\t\textent data disk byte %llu nr %llu\n",
(unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
(unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
printf("\t\textent data offset %llu nr %llu ram %llu\n",
(unsigned long long)btrfs_file_extent_offset(eb, fi),
(unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
(unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
printf("\t\textent compression %d\n",
btrfs_file_extent_compression(eb, fi));
}
void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
{
int i;
@ -226,25 +261,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
case BTRFS_EXTENT_DATA_KEY:
fi = btrfs_item_ptr(l, i,
struct btrfs_file_extent_item);
if (btrfs_file_extent_type(l, fi) ==
BTRFS_FILE_EXTENT_INLINE) {
printf("\t\tinline extent data size %u "
"ram %llu compress %d\n",
btrfs_file_extent_inline_len(l, item),
(unsigned long long)
btrfs_file_extent_ram_bytes(l, fi),
btrfs_file_extent_compression(l, fi));
break;
}
printf("\t\textent data disk byte %llu nr %llu\n",
(unsigned long long)btrfs_file_extent_disk_bytenr(l, fi),
(unsigned long long)btrfs_file_extent_disk_num_bytes(l, fi));
printf("\t\textent data offset %llu nr %llu ram %llu\n",
(unsigned long long)btrfs_file_extent_offset(l, fi),
(unsigned long long)btrfs_file_extent_num_bytes(l, fi),
(unsigned long long)btrfs_file_extent_ram_bytes(l, fi));
printf("\t\textent compression %d\n",
btrfs_file_extent_compression(l, fi));
print_file_extent_item(l, item, fi);
break;
case BTRFS_BLOCK_GROUP_ITEM_KEY:
bi = btrfs_item_ptr(l, i,