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authorDave Chinner <dchinner@redhat.com>2022-04-21 03:34:33 +0300
committerDave Chinner <david@fromorbit.com>2022-04-21 03:34:33 +0300
commitc7610dceed39d978ef1ee0f2ab5a3c8d2d54d120 (patch)
treef849e0cae5f9e72330b61b8f1a190c5f226bc4da /fs/xfs/xfs_log.c
parent54021b624261fe5b429d7ab4d081c3b2cca153a8 (diff)
downloadlinux-c7610dceed39d978ef1ee0f2ab5a3c8d2d54d120.tar.xz
xfs: log tickets don't need log client id
We currently set the log ticket client ID when we reserve a transaction. This client ID is only ever written to the log by a CIL checkpoint or unmount records, and so anything using a high level transaction allocated through xfs_trans_alloc() does not need a log ticket client ID to be set. For the CIL checkpoint, the client ID written to the journal is always XFS_TRANSACTION, and for the unmount record it is always XFS_LOG, and nothing else writes to the log. All of these operations tell xlog_write() exactly what they need to write to the log (the optype) and build their own opheaders for start, commit and unmount records. Hence we no longer need to set the client id in either the log ticket or the xfs_trans. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Chandan Babu R <chandan.babu@oracle.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_log.c')
-rw-r--r--fs/xfs/xfs_log.c47
1 files changed, 8 insertions, 39 deletions
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index c23a15c56ef1..1f6e7092ec76 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -434,10 +434,9 @@ out_error:
int
xfs_log_reserve(
struct xfs_mount *mp,
- int unit_bytes,
- int cnt,
+ int unit_bytes,
+ int cnt,
struct xlog_ticket **ticp,
- uint8_t client,
bool permanent)
{
struct xlog *log = mp->m_log;
@@ -445,15 +444,13 @@ xfs_log_reserve(
int need_bytes;
int error = 0;
- ASSERT(client == XFS_TRANSACTION || client == XFS_LOG);
-
if (xlog_is_shutdown(log))
return -EIO;
XFS_STATS_INC(mp, xs_try_logspace);
ASSERT(*ticp == NULL);
- tic = xlog_ticket_alloc(log, unit_bytes, cnt, client, permanent);
+ tic = xlog_ticket_alloc(log, unit_bytes, cnt, permanent);
*ticp = tic;
xlog_grant_push_ail(log, tic->t_cnt ? tic->t_unit_res * tic->t_cnt
@@ -947,7 +944,7 @@ xlog_unmount_write(
struct xlog_ticket *tic = NULL;
int error;
- error = xfs_log_reserve(mp, 600, 1, &tic, XFS_LOG, 0);
+ error = xfs_log_reserve(mp, 600, 1, &tic, 0);
if (error)
goto out_err;
@@ -2282,35 +2279,13 @@ xlog_write_calc_vec_length(
static xlog_op_header_t *
xlog_write_setup_ophdr(
- struct xlog *log,
struct xlog_op_header *ophdr,
- struct xlog_ticket *ticket,
- uint flags)
+ struct xlog_ticket *ticket)
{
ophdr->oh_tid = cpu_to_be32(ticket->t_tid);
- ophdr->oh_clientid = ticket->t_clientid;
+ ophdr->oh_clientid = XFS_TRANSACTION;
ophdr->oh_res2 = 0;
-
- /* are we copying a commit or unmount record? */
- ophdr->oh_flags = flags;
-
- /*
- * We've seen logs corrupted with bad transaction client ids. This
- * makes sure that XFS doesn't generate them on. Turn this into an EIO
- * and shut down the filesystem.
- */
- switch (ophdr->oh_clientid) {
- case XFS_TRANSACTION:
- case XFS_VOLUME:
- case XFS_LOG:
- break;
- default:
- xfs_warn(log->l_mp,
- "Bad XFS transaction clientid 0x%x in ticket "PTR_FMT,
- ophdr->oh_clientid, ticket);
- return NULL;
- }
-
+ ophdr->oh_flags = 0;
return ophdr;
}
@@ -2535,11 +2510,7 @@ xlog_write(
if (index)
optype &= ~XLOG_START_TRANS;
} else {
- ophdr = xlog_write_setup_ophdr(log, ptr,
- ticket, optype);
- if (!ophdr)
- return -EIO;
-
+ ophdr = xlog_write_setup_ophdr(ptr, ticket);
xlog_write_adv_cnt(&ptr, &len, &log_offset,
sizeof(struct xlog_op_header));
added_ophdr = true;
@@ -3598,7 +3569,6 @@ xlog_ticket_alloc(
struct xlog *log,
int unit_bytes,
int cnt,
- char client,
bool permanent)
{
struct xlog_ticket *tic;
@@ -3616,7 +3586,6 @@ xlog_ticket_alloc(
tic->t_cnt = cnt;
tic->t_ocnt = cnt;
tic->t_tid = prandom_u32();
- tic->t_clientid = client;
if (permanent)
tic->t_flags |= XLOG_TIC_PERM_RESERV;