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xfs: remove xfs_trans_ail_delete_bulk

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xfs_iflush_done uses an on-stack variable length array to pass the log
items to be deleted to xfs_trans_ail_delete_bulk.  On-stack VLAs are a
nasty gcc extension that can lead to unbounded stack allocations, but
fortunately we can easily avoid them by simply open coding
xfs_trans_ail_delete_bulk in xfs_iflush_done, which is the only caller
of it except for the single-item xfs_trans_ail_delete.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2017-04-21 11:24:42 -07:00 • committed by Darrick J. Wong
parent 3f88a15ae0
commit 27af1bbf52
3 changed files with 56 additions and 61 deletions
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15
fs/xfs/xfs_trans_priv.h
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@ -106,18 +106,9 @@ xfs_trans_ail_update(
xfs_trans_ail_update_bulk(ailp, NULL, &lip, 1, lsn);
}
void xfs_trans_ail_delete_bulk(struct xfs_ail *ailp,
struct xfs_log_item **log_items, int nr_items,
int shutdown_type)
__releases(ailp->xa_lock);
static inline void
xfs_trans_ail_delete(
struct xfs_ail *ailp,
xfs_log_item_t *lip,
int shutdown_type) __releases(ailp->xa_lock)
{
xfs_trans_ail_delete_bulk(ailp, &lip, 1, shutdown_type);
}
bool xfs_ail_delete_one(struct xfs_ail *ailp, struct xfs_log_item *lip);
void xfs_trans_ail_delete(struct xfs_ail *ailp, struct xfs_log_item *lip,
int shutdown_type) __releases(ailp->xa_lock);
static inline void
xfs_trans_ail_remove(