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| author | Darrick J. Wong <darrick.wong@oracle.com> | 2018-01-08 21:51:26 +0300 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2018-01-08 21:54:47 +0300 |
| commit | b872af2c8700e9d64af8e13811b7679ede26ca00 (patch) | |
| tree | 4103063960024e42ace09c208cf2bca45d08f09c /fs/xfs/xfs_trans.c | |
| parent | 9c712a1346b214a92f4a0e5bb4de4c075de65c32 (diff) | |
| download | linux-b872af2c8700e9d64af8e13811b7679ede26ca00.tar.xz | |
xfs: trace log reservations at mount time
At each mount, emit the transaction reservation type information via
tracepoints. This makes it easier to compare the log reservation info
calculated by the kernel and xfsprogs so that we can more easily diagnose
minimum log size failures on freshly formatted filesystems.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'fs/xfs/xfs_trans.c')
| -rw-r--r-- | fs/xfs/xfs_trans.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index a87f657f59c9..86f92df32c42 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -35,6 +35,27 @@ kmem_zone_t *xfs_trans_zone; kmem_zone_t *xfs_log_item_desc_zone; +#if defined(CONFIG_TRACEPOINTS) +static void +xfs_trans_trace_reservations( + struct xfs_mount *mp) +{ + struct xfs_trans_res resv; + struct xfs_trans_res *res; + struct xfs_trans_res *end_res; + int i; + + res = (struct xfs_trans_res *)M_RES(mp); + end_res = (struct xfs_trans_res *)(M_RES(mp) + 1); + for (i = 0; res < end_res; i++, res++) + trace_xfs_trans_resv_calc(mp, i, res); + xfs_log_get_max_trans_res(mp, &resv); + trace_xfs_trans_resv_calc(mp, -1, &resv); +} +#else +# define xfs_trans_trace_reservations(mp) +#endif + /* * Initialize the precomputed transaction reservation values * in the mount structure. @@ -44,6 +65,7 @@ xfs_trans_init( struct xfs_mount *mp) { xfs_trans_resv_calc(mp, M_RES(mp)); + xfs_trans_trace_reservations(mp); } /* |