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btrfs: cleanup root usage by btrfs_get_alloc_profile

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There are two places where we don't already know what kind of alloc
profile we need before calling btrfs_get_alloc_profile, but we need
access to a root everywhere we call it.

This patch adds helpers for btrfs_{data,metadata,system}_alloc_profile()
and relegates btrfs_system_alloc_profile to a static for use in those
two cases.  The next patch will eliminate one of those.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Jeff Mahoney 2017-05-17 11:38:35 -04:00 • committed by David Sterba
parent e03733da5a
commit 1b86826d12
5 changed files with 28 additions and 15 deletions
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3
fs/btrfs/inode.c
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@ -8473,7 +8473,6 @@ static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
{
struct inode *inode = dip->inode;
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct bio *bio;
struct bio *orig_bio = dip->orig_bio;
u64 start_sector = orig_bio->bi_iter.bi_sector;
@ -8499,7 +8498,7 @@ static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
}
/* async crcs make it difficult to collect full stripe writes. */
if (btrfs_get_alloc_profile(root, 1) & BTRFS_BLOCK_GROUP_RAID56_MASK)
if (btrfs_data_alloc_profile(fs_info) & BTRFS_BLOCK_GROUP_RAID56_MASK)
async_submit = 0;
else
async_submit = 1;