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authorDavid Sterba <dsterba@suse.com>2020-06-30 02:01:31 +0200
committerDavid Sterba <dsterba@suse.com>2020-12-08 15:53:59 +0100
commit55fc29bed8ddb4c3848ecf8cf7133e34c946f223 (patch)
treec7174086f876963be22ca15e63e05560378d4518 /fs/btrfs/ordered-data.c
parentfe5ecbe818de38774895305e1f2d48972f1b745f (diff)
btrfs: use cached value of fs_info::csum_size everywhere
btrfs_get_16 shows up in the system performance profiles (helper to read 16bit values from on-disk structures). This is partially because of the checksum size that's frequently read along with data reads/writes, other u16 uses are from item size or directory entries. Replace all calls to btrfs_super_csum_size by the cached value from fs_info. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ordered-data.c')
-rw-r--r--fs/btrfs/ordered-data.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 78c1f28f3bb6..6a63fb141f23 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -868,7 +868,7 @@ int btrfs_find_ordered_sum(struct btrfs_inode *inode, u64 offset,
struct btrfs_ordered_inode_tree *tree = &inode->ordered_tree;
unsigned long num_sectors;
unsigned long i;
- const u16 csum_size = btrfs_super_csum_size(fs_info->super_copy);
+ const u16 csum_size = fs_info->csum_size;
int index = 0;
ordered = btrfs_lookup_ordered_extent(inode, offset);