diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2019-08-30 15:45:05 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2019-10-19 10:39:11 -0700 |
| commit | 99117c70e1e95d6b3a6017e7346c1a4355de888f (patch) | |
| tree | 2011a6d97b8a5eea903dfa354b6f118206228519 /fs/xfs/xfs_icache.c | |
| parent | 0eb7dd4e4e25147ec47adc54e30fda87d071ab27 (diff) | |
xfs: flush speculative space allocations when we run out of spacereclaim-space-harder_2019-10-19
If a fs modification (creation, file write, reflink, etc.) is unable to
reserve enough space to handle the modification, try clearing whatever
space the filesystem might have been hanging onto in the hopes of
speeding up the filesystem. The flushing behavior will become
particularly important when we add deferred inode inactivation because
that will increase the amount of space that isn't actively tied to user
data.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_icache.c')
| -rw-r--r-- | fs/xfs/xfs_icache.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index 6fc5cb54914f..b7f8ad93b14b 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -1524,6 +1524,15 @@ xfs_icache_free_eofblocks( XFS_ICI_EOFBLOCKS_TAG); } +static inline void +xfs_inode_free_scan( + struct xfs_mount *mp, + struct xfs_eofblocks *eofb) +{ + xfs_icache_free_eofblocks(mp, eofb); + xfs_icache_free_cowblocks(mp, eofb); +} + /* * Run cow/eofblocks scans on the quotas applicable to the inode. For inodes * with multiple quotas, we don't know exactly which quota caused an allocation @@ -1579,11 +1588,28 @@ xfs_inode_free_quota_blocks( trace_xfs_inode_free_quota_blocks(ip->i_mount, &eofb, _RET_IP_); - xfs_icache_free_eofblocks(ip->i_mount, &eofb); - xfs_icache_free_cowblocks(ip->i_mount, &eofb); + xfs_inode_free_scan(ip->i_mount, &eofb); return true; } +/* + * Try to free space in the filesystem by purging eofblocks and cowblocks. + */ +void +xfs_inode_free_blocks( + struct xfs_mount *mp, + bool sync) +{ + struct xfs_eofblocks eofb = {0}; + + if (sync) + eofb.eof_flags |= XFS_EOF_FLAGS_SYNC; + + trace_xfs_inode_free_blocks(mp, &eofb, _RET_IP_); + + xfs_inode_free_scan(mp, &eofb); +} + static inline unsigned long xfs_iflag_for_tag( int tag) |