diff options
Diffstat (limited to 'fs/xfs/scrub/rtsummary.c')
| -rw-r--r-- | fs/xfs/scrub/rtsummary.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/fs/xfs/scrub/rtsummary.c b/fs/xfs/scrub/rtsummary.c index e6c7b52c2edf..149616f2d392 100644 --- a/fs/xfs/scrub/rtsummary.c +++ b/fs/xfs/scrub/rtsummary.c @@ -20,6 +20,7 @@ #include "scrub/common.h" #include "scrub/trace.h" #include "scrub/xfile.h" +#include "scrub/repair.h" /* * Realtime Summary @@ -57,8 +58,13 @@ xchk_setup_rtsummary( struct xfs_inode *ip) { struct xfs_mount *mp = sc->mp; + unsigned long long resblks = 0; int error; + error = xrep_setup_tempfile(sc, S_IFREG); + if (error) + return error; + /* * Create an xfile to construct a new rtsummary file. The xfile allows * us to avoid pinning kernel memory for this purpose. @@ -67,7 +73,21 @@ xchk_setup_rtsummary( if (IS_ERR(sc->xfile)) return PTR_ERR(sc->xfile); - error = xchk_trans_alloc(sc, 0); + /* + * If we're doing a repair, we reserve 2x the summary blocks: once for + * the new summary contents and again for the bmbt blocks and the + * remapping operation. We cannot use xfs_swapext_estimate because we + * have not yet constructed the replacement rtsummary and therefore do + * not know how many extents it will use. By the time we do, we will + * have a dirty transaction (which we cannot drop because we cannot + * drop the rtsummary ILOCK) and cannot ask for more reservation. + */ + if (sc->sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR) { + resblks = XFS_B_TO_FSB(sc->mp, sc->mp->m_rsumsize) * 2; + if (resblks > UINT_MAX) + return -EOPNOTSUPP; + } + error = xchk_trans_alloc(sc, resblks); if (error) return error; |