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

Btrfs: More throttle tuning

Browse Source 
* Make walk_down_tree wake up throttled tasks more often
* Make walk_down_tree call cond_resched during long loops
* As the size of the ref cache grows, wait longer in throttle
* Get rid of the reada code in walk_down_tree, the leaves don't get
  read anymore, thanks to the ref cache.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-08-04 08:20:15 -04:00
parent 65b51a009e
commit 2dd3e67b1e
3 changed files with 29 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
fs/btrfs/disk-io.c
View File

@@ -188,13 +188,6 @@ static int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf,
btrfs_csum_final(crc, result);
if (verify) {
int from_this_trans = 0;
if (root->fs_info->running_transaction &&
btrfs_header_generation(buf) ==
root->fs_info->running_transaction->transid)
from_this_trans = 1;
/* FIXME, this is not good */
if (memcmp_extent_buffer(buf, result, 0, BTRFS_CRC32_SIZE)) {
u32 val;
@@ -203,11 +196,9 @@ static int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf,
read_extent_buffer(buf, &val, 0, BTRFS_CRC32_SIZE);
printk("btrfs: %s checksum verify failed on %llu "
"wanted %X found %X from_this_trans %d "
"level %d\n",
"wanted %X found %X level %d\n",
root->fs_info->sb->s_id,
buf->start, val, found, from_this_trans,
btrfs_header_level(buf));
buf->start, val, found, btrfs_header_level(buf));
return 1;
}
} else {