iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

xfs: fix incorrect unit conversion in scrub tracepoint

Browse Source 
XFS_DADDR_TO_FSB converts a raw disk address (in units of 512b blocks)
to a raw disk address (in units of fs blocks).  Unfortunately, the
xchk_block_error_class tracepoints incorrectly uses this to decode
xfs_daddr_t into segmented AG number and AG block addresses.  Use the
correct translation code.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
This commit is contained in:
Darrick J. Wong 2021-08-17 09:49:42 -07:00
parent a437b9b488
commit 3fd7cb845b
1 changed files with 4 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
fs/xfs/scrub/trace.h
View File

@ -193,29 +193,21 @@ DECLARE_EVENT_CLASS(xchk_block_error_class,
__field(dev_t, dev)
__field(unsigned int, type)
__field(xfs_agnumber_t, agno)
__field(xfs_agblock_t, bno)
__field(xfs_agblock_t, agbno)
__field(void *, ret_ip)
),
TP_fast_assign(
xfs_fsblock_t fsbno;
xfs_agnumber_t agno;
xfs_agblock_t bno;
fsbno = XFS_DADDR_TO_FSB(sc->mp, daddr);
agno = XFS_FSB_TO_AGNO(sc->mp, fsbno);
bno = XFS_FSB_TO_AGBNO(sc->mp, fsbno);
__entry->dev = sc->mp->m_super->s_dev;
__entry->type = sc->sm->sm_type;
__entry->agno = agno;
__entry->bno = bno;
__entry->agno = xfs_daddr_to_agno(sc->mp, daddr);
__entry->agbno = xfs_daddr_to_agbno(sc->mp, daddr);
__entry->ret_ip = ret_ip;
),
TP_printk("dev %d:%d type %s agno %u agbno %u ret_ip %pS",
MAJOR(__entry->dev), MINOR(__entry->dev),
__print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
__entry->agno,
__entry->bno,
__entry->agbno,
__entry->ret_ip)
)