Displaying 3 results from an estimated 3 matches for "btrfs_free_space_ext".
2011 Mar 31
4
[PATCH] Btrfs: fix free space cache when there are pinned extents and clusters
...start_offset;
memset(addr, 0, PAGE_CACHE_SIZE);
- while (1) {
+ while (node && !next_page) {
struct btrfs_free_space *e;
e = rb_entry(node, struct btrfs_free_space, offset_index);
@@ -614,12 +651,49 @@ int btrfs_write_out_cache(struct btrfs_root *root,
entry->type = BTRFS_FREE_SPACE_EXTENT;
}
node = rb_next(node);
- if (!node)
- break;
+ if (!node && cluster) {
+ node = rb_first(&cluster->root);
+ cluster = NULL;
+ }
offset += sizeof(struct btrfs_free_space_entry);
if (offset + sizeof(struct btrfs_free_space_entry) >=
PAGE_C...
2011 Dec 28
13
fstrim on BTRFS
Hi!
With 3.2-rc4 (probably earlier), Ext4 seems to remember what areas it
trimmed:
merkaba:~> fstrim -v /boot
/boot: 224657408 bytes were trimmed
merkaba:~> fstrim -v /boot
/boot: 0 bytes were trimmed
But BTRFS does not:
merkaba:~> fstrim -v /
/: 4431613952 bytes were trimmed
merkaba:~> fstrim -v /
/: 4341846016 bytes were trimmed
Is it planned to add this feature to BTRFS
2013 Apr 03
0
[PATCH] Btrfs-progs: add a free space cache checker to fsck
...struct btrfs_root;
struct btrfs_trans_handle;
+struct btrfs_free_space_ctl;
#define BTRFS_MAGIC 0x4D5F53665248425F /* ascii _BHRfS_M, no null */
#define BTRFS_MAX_LEVEL 8
@@ -268,6 +269,15 @@ struct btrfs_chunk {
/* additional stripes go here */
} __attribute__ ((__packed__));
+#define BTRFS_FREE_SPACE_EXTENT 1
+#define BTRFS_FREE_SPACE_BITMAP 2
+
+struct btrfs_free_space_entry {
+ __le64 offset;
+ __le64 bytes;
+ u8 type;
+} __attribute__ ((__packed__));
+
struct btrfs_free_space_header {
struct btrfs_disk_key location;
__le64 generation;
@@ -866,6 +876,7 @@ struct btrfs_block_group_cache {
s...