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authorDarrick J. Wong <darrick.wong@oracle.com>2020-09-26 03:39:51 +0300
committerDarrick J. Wong <darrick.wong@oracle.com>2020-10-07 18:40:29 +0300
commited1575daf71e4e21d8ae735b6e687c95454aaa17 (patch)
tree3a9afff06426ae475cbb95b93fd4bff0fe67d98b /fs/xfs/xfs_log.h
parent4e919af7827a6adfc28e82cd6c4ffcfcc3dd6118 (diff)
downloadlinux-ed1575daf71e4e21d8ae735b6e687c95454aaa17.tar.xz
xfs: expose the log push threshold
Separate the computation of the log push threshold and the push logic in xlog_grant_push_ail. This enables higher level code to determine (for example) that it is holding on to a logged intent item and the log is so busy that it is more than 75% full. In that case, it would be desirable to move the log item towards the head to release the tail, which we will cover in the next patch. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_log.h')
-rw-r--r--fs/xfs/xfs_log.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
index 1412d6993f1e..58c3fcbec94a 100644
--- a/fs/xfs/xfs_log.h
+++ b/fs/xfs/xfs_log.h
@@ -141,4 +141,6 @@ void xfs_log_quiesce(struct xfs_mount *mp);
bool xfs_log_check_lsn(struct xfs_mount *, xfs_lsn_t);
bool xfs_log_in_recovery(struct xfs_mount *);
+xfs_lsn_t xlog_grant_push_threshold(struct xlog *log, int need_bytes);
+
#endif /* __XFS_LOG_H__ */