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btrfs: move btrfs_set_path_blocking to other locking functions

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The function belongs to the family of locking functions, so move it
there. The 'noinline' keyword is dropped as it's now an exported
function that does not need it.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
2019-09-24 19:17:17 +02:00
parent 31f6e769ce
commit ed2b1d36a9
3 changed files with 28 additions and 25 deletions
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26
fs/btrfs/locking.c
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@@ -316,3 +316,29 @@ void btrfs_tree_unlock(struct extent_buffer *eb)
write_unlock(&eb->lock);
}
}
/*
* Set all locked nodes in the path to blocking locks. This should be done
* before scheduling
*/
void btrfs_set_path_blocking(struct btrfs_path *p)
{
int i;
for (i = 0; i < BTRFS_MAX_LEVEL; i++) {
if (!p->nodes[i] || !p->locks[i])
continue;
/*
* If we currently have a spinning reader or writer lock this
* will bump the count of blocking holders and drop the
* spinlock.
*/
if (p->locks[i] == BTRFS_READ_LOCK) {
btrfs_set_lock_blocking_read(p->nodes[i]);
p->locks[i] = BTRFS_READ_LOCK_BLOCKING;
} else if (p->locks[i] == BTRFS_WRITE_LOCK) {
btrfs_set_lock_blocking_write(p->nodes[i]);
p->locks[i] = BTRFS_WRITE_LOCK_BLOCKING;
}
}
}