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xfs: only walk the incore inode tree once per blockgc scan 

Perform background block preallocation gc scans more efficiently by
walking the incore inode tree once.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2021-01-22 16:48:43 -08:00
parent 9669f51de5
commit 419567534e
1 changed files with 11 additions and 11 deletions
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22
fs/xfs/xfs_icache.c
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@ -1571,21 +1571,19 @@ xfs_start_block_reaping(
xfs_blockgc_queue(mp);
}
/* Scan all incore inodes for block preallocations that we can remove. */
static inline int
xfs_blockgc_scan(
struct xfs_mount *mp,
struct xfs_eofblocks *eofb)
/* Scan one incore inode for block preallocations that we can remove. */
static int
xfs_blockgc_scan_inode(
struct xfs_inode *ip,
void *args)
{
int error;
error = xfs_inode_walk(mp, 0, xfs_inode_free_eofblocks, eofb,
XFS_ICI_BLOCKGC_TAG);
error = xfs_inode_free_eofblocks(ip, args);
if (error)
return error;
error = xfs_inode_walk(mp, 0, xfs_inode_free_cowblocks, eofb,
XFS_ICI_BLOCKGC_TAG);
error = xfs_inode_free_cowblocks(ip, args);
if (error)
return error;
@ -1603,7 +1601,8 @@ xfs_blockgc_worker(
if (!sb_start_write_trylock(mp->m_super))
return;
error = xfs_blockgc_scan(mp, NULL);
error = xfs_inode_walk(mp, 0, xfs_blockgc_scan_inode, NULL,
XFS_ICI_BLOCKGC_TAG);
if (error)
xfs_info(mp, "preallocation gc worker failed, err=%d", error);
sb_end_write(mp->m_super);
@ -1620,7 +1619,8 @@ xfs_blockgc_free_space(
{
trace_xfs_blockgc_free_space(mp, eofb, _RET_IP_);
return xfs_blockgc_scan(mp, eofb);
return xfs_inode_walk(mp, 0, xfs_blockgc_scan_inode, eofb,
XFS_ICI_BLOCKGC_TAG);
}
/*