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xfs: remove lsn relevant fields from xfs_trans structure and its users

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The t_lsn is not used anymore and the t_commit_lsn is used as a tmp
storage for the checkpoint sequence number only in the current code.

And the start/commit lsn are tracked as a transaction group tag in
the xfs_cil_ctx instead of a single transaction, so remove them from
the xfs_trans structure and their users to match with the design.

Signed-off-by: Shan Hai <shan.hai@oracle.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Shan Hai
2017-06-14 21:35:07 -07:00
committed by Darrick J. Wong
parent 3398a4005f
commit f990fc5ad1
3 changed files with 4 additions and 26 deletions
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7
fs/xfs/xfs_log_cil.c
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@@ -993,6 +993,7 @@ xfs_log_commit_cil(
{
struct xlog *log = mp->m_log;
struct xfs_cil *cil = log->l_cilp;
xfs_lsn_t xc_commit_lsn;
/*
* Do all necessary memory allocation before we lock the CIL.
@@ -1006,9 +1007,9 @@ xfs_log_commit_cil(
xlog_cil_insert_items(log, tp);
tp->t_commit_lsn = cil->xc_ctx->sequence;
xc_commit_lsn = cil->xc_ctx->sequence;
if (commit_lsn)
*commit_lsn = tp->t_commit_lsn;
*commit_lsn = xc_commit_lsn;
xfs_log_done(mp, tp->t_ticket, NULL, regrant);
xfs_trans_unreserve_and_mod_sb(tp);
@@ -1024,7 +1025,7 @@ xfs_log_commit_cil(
* the log items. This affects (at least) processing of stale buffers,
* inodes and EFIs.
*/
xfs_trans_free_items(tp, tp->t_commit_lsn, false);
xfs_trans_free_items(tp, xc_commit_lsn, false);
xlog_cil_push_background(log);