| Message ID | 156158198545.495715.13588754159200411056.stgit@magnolia (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | xfs: introduce new BULKSTAT and INUMBERS ioctls | expand |
On Wed, Jun 26, 2019 at 01:46:25PM -0700, Darrick J. Wong wrote: > From: Darrick J. Wong <darrick.wong@oracle.com> > > Add a new xfs_bulk_ireq flag to constrain the iteration to a single AG. > If the passed-in startino value is zero then we start with the first > inode in the AG that the user passes in; otherwise, we iterate only > within the same AG as the passed-in inode. > > Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> > Reviewed-by: Allison Collins <allison.henderson@oracle.com> > --- Reviewed-by: Brian Foster <bfoster@redhat.com> > fs/xfs/libxfs/xfs_fs.h | 10 ++++++++-- > fs/xfs/xfs_ioctl.c | 25 ++++++++++++++++++++++++- > fs/xfs/xfs_itable.c | 6 +++--- > fs/xfs/xfs_itable.h | 4 ++++ > fs/xfs/xfs_iwalk.c | 12 ++++++++++++ > fs/xfs/xfs_iwalk.h | 22 +++++++++++++++++----- > fs/xfs/xfs_qm.c | 3 ++- > 7 files changed, 70 insertions(+), 12 deletions(-) > > > diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h > index f9f35139d4b7..77c06850ac52 100644 > --- a/fs/xfs/libxfs/xfs_fs.h > +++ b/fs/xfs/libxfs/xfs_fs.h > @@ -462,11 +462,17 @@ struct xfs_bulk_ireq { > uint32_t flags; /* I/O: operation flags */ > uint32_t icount; /* I: count of entries in buffer */ > uint32_t ocount; /* O: count of entries filled out */ > - uint32_t reserved32; /* must be zero */ > + uint32_t agno; /* I: see comment for IREQ_AGNO */ > uint64_t reserved[5]; /* must be zero */ > }; > > -#define XFS_BULK_IREQ_FLAGS_ALL (0) > +/* > + * Only return results from the specified @agno. If @ino is zero, start > + * with the first inode of @agno. > + */ > +#define XFS_BULK_IREQ_AGNO (1 << 0) > + > +#define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO) > > /* Header for a single inode request. */ > struct xfs_ireq { > diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c > index 2ac5e100b147..f71341cd8340 100644 > --- a/fs/xfs/xfs_ioctl.c > +++ b/fs/xfs/xfs_ioctl.c > @@ -853,7 +853,6 @@ xfs_bulk_ireq_setup( > { > if (hdr->icount == 0 || > (hdr->flags & ~XFS_BULK_IREQ_FLAGS_ALL) || > - hdr->reserved32 || > memchr_inv(hdr->reserved, 0, sizeof(hdr->reserved))) > return -EINVAL; > > @@ -861,6 +860,29 @@ xfs_bulk_ireq_setup( > breq->ubuffer = ubuffer; > breq->icount = hdr->icount; > breq->ocount = 0; > + breq->flags = 0; > + > + /* > + * The IREQ_AGNO flag means that we only want results from a given AG. > + * If @hdr->ino is zero, we start iterating in that AG. If @hdr->ino is > + * beyond the specified AG then we return no results. > + */ > + if (hdr->flags & XFS_BULK_IREQ_AGNO) { > + if (hdr->agno >= mp->m_sb.sb_agcount) > + return -EINVAL; > + > + if (breq->startino == 0) > + breq->startino = XFS_AGINO_TO_INO(mp, hdr->agno, 0); > + else if (XFS_INO_TO_AGNO(mp, breq->startino) < hdr->agno) > + return -EINVAL; > + > + breq->flags |= XFS_IBULK_SAME_AG; > + > + /* Asking for an inode past the end of the AG? We're done! */ > + if (XFS_INO_TO_AGNO(mp, breq->startino) > hdr->agno) > + return XFS_ITER_ABORT; > + } else if (hdr->agno) > + return -EINVAL; > > /* Asking for an inode past the end of the FS? We're done! */ > if (XFS_INO_TO_AGNO(mp, breq->startino) >= mp->m_sb.sb_agcount) > @@ -945,6 +967,7 @@ xfs_ireq_setup( > breq->ubuffer = ubuffer; > breq->icount = 1; > breq->startino = hdr->ino; > + breq->flags = 0; > return 0; > } > > diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c > index 745b04f59132..f92a1508a2bd 100644 > --- a/fs/xfs/xfs_itable.c > +++ b/fs/xfs/xfs_itable.c > @@ -248,8 +248,8 @@ xfs_bulkstat( > if (!bc.buf) > return -ENOMEM; > > - error = xfs_iwalk(breq->mp, NULL, breq->startino, xfs_bulkstat_iwalk, > - breq->icount, &bc); > + error = xfs_iwalk(breq->mp, NULL, breq->startino, breq->flags, > + xfs_bulkstat_iwalk, breq->icount, &bc); > > kmem_free(bc.buf); > > @@ -367,7 +367,7 @@ xfs_inumbers( > if (xfs_bulkstat_already_done(breq->mp, breq->startino)) > return 0; > > - error = xfs_inobt_walk(breq->mp, NULL, breq->startino, > + error = xfs_inobt_walk(breq->mp, NULL, breq->startino, breq->flags, > xfs_inumbers_walk, breq->icount, &ic); > > /* > diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h > index fa9fb9104c7f..e90c1fc5b981 100644 > --- a/fs/xfs/xfs_itable.h > +++ b/fs/xfs/xfs_itable.h > @@ -12,8 +12,12 @@ struct xfs_ibulk { > xfs_ino_t startino; /* start with this inode */ > unsigned int icount; /* number of elements in ubuffer */ > unsigned int ocount; /* number of records returned */ > + unsigned int flags; /* see XFS_IBULK_FLAG_* */ > }; > > +/* Only iterate within the same AG as startino */ > +#define XFS_IBULK_SAME_AG (XFS_IWALK_SAME_AG) > + > /* Return value that means we want to abort the walk. */ > #define XFS_IBULK_ABORT (XFS_IWALK_ABORT) > > diff --git a/fs/xfs/xfs_iwalk.c b/fs/xfs/xfs_iwalk.c > index 80c139aed264..d21d9fe71f3d 100644 > --- a/fs/xfs/xfs_iwalk.c > +++ b/fs/xfs/xfs_iwalk.c > @@ -519,6 +519,7 @@ xfs_iwalk( > struct xfs_mount *mp, > struct xfs_trans *tp, > xfs_ino_t startino, > + unsigned int flags, > xfs_iwalk_fn iwalk_fn, > unsigned int inode_records, > void *data) > @@ -538,6 +539,7 @@ xfs_iwalk( > int error; > > ASSERT(agno < mp->m_sb.sb_agcount); > + ASSERT(!(flags & ~XFS_IWALK_FLAGS_ALL)); > > error = xfs_iwalk_alloc(&iwag); > if (error) > @@ -548,6 +550,8 @@ xfs_iwalk( > if (error) > break; > iwag.startino = XFS_AGINO_TO_INO(mp, agno + 1, 0); > + if (flags & XFS_INOBT_WALK_SAME_AG) > + break; > } > > xfs_iwalk_free(&iwag); > @@ -586,6 +590,7 @@ int > xfs_iwalk_threaded( > struct xfs_mount *mp, > xfs_ino_t startino, > + unsigned int flags, > xfs_iwalk_fn iwalk_fn, > unsigned int inode_records, > bool polled, > @@ -597,6 +602,7 @@ xfs_iwalk_threaded( > int error; > > ASSERT(agno < mp->m_sb.sb_agcount); > + ASSERT(!(flags & ~XFS_IWALK_FLAGS_ALL)); > > nr_threads = xfs_pwork_guess_datadev_parallelism(mp); > error = xfs_pwork_init(mp, &pctl, xfs_iwalk_ag_work, "xfs_iwalk", > @@ -618,6 +624,8 @@ xfs_iwalk_threaded( > iwag->sz_recs = xfs_iwalk_prefetch(inode_records); > xfs_pwork_queue(&pctl, &iwag->pwork); > startino = XFS_AGINO_TO_INO(mp, agno + 1, 0); > + if (flags & XFS_INOBT_WALK_SAME_AG) > + break; > } > > if (polled) > @@ -674,6 +682,7 @@ xfs_inobt_walk( > struct xfs_mount *mp, > struct xfs_trans *tp, > xfs_ino_t startino, > + unsigned int flags, > xfs_inobt_walk_fn inobt_walk_fn, > unsigned int inobt_records, > void *data) > @@ -691,6 +700,7 @@ xfs_inobt_walk( > int error; > > ASSERT(agno < mp->m_sb.sb_agcount); > + ASSERT(!(flags & ~XFS_INOBT_WALK_FLAGS_ALL)); > > error = xfs_iwalk_alloc(&iwag); > if (error) > @@ -701,6 +711,8 @@ xfs_inobt_walk( > if (error) > break; > iwag.startino = XFS_AGINO_TO_INO(mp, agno + 1, 0); > + if (flags & XFS_INOBT_WALK_SAME_AG) > + break; > } > > xfs_iwalk_free(&iwag); > diff --git a/fs/xfs/xfs_iwalk.h b/fs/xfs/xfs_iwalk.h > index 67462861680c..6c960e10ed4d 100644 > --- a/fs/xfs/xfs_iwalk.h > +++ b/fs/xfs/xfs_iwalk.h > @@ -14,10 +14,16 @@ typedef int (*xfs_iwalk_fn)(struct xfs_mount *mp, struct xfs_trans *tp, > #define XFS_IWALK_ABORT (XFS_ITER_ABORT) > > int xfs_iwalk(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino, > - xfs_iwalk_fn iwalk_fn, unsigned int inode_records, void *data); > + unsigned int flags, xfs_iwalk_fn iwalk_fn, > + unsigned int inode_records, void *data); > int xfs_iwalk_threaded(struct xfs_mount *mp, xfs_ino_t startino, > - xfs_iwalk_fn iwalk_fn, unsigned int inode_records, bool poll, > - void *data); > + unsigned int flags, xfs_iwalk_fn iwalk_fn, > + unsigned int inode_records, bool poll, void *data); > + > +/* Only iterate inodes within the same AG as @startino. */ > +#define XFS_IWALK_SAME_AG (0x1) > + > +#define XFS_IWALK_FLAGS_ALL (XFS_IWALK_SAME_AG) > > /* Walk all inode btree records in the filesystem starting from @startino. */ > typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp, > @@ -28,7 +34,13 @@ typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp, > #define XFS_INOBT_WALK_ABORT (XFS_IWALK_ABORT) > > int xfs_inobt_walk(struct xfs_mount *mp, struct xfs_trans *tp, > - xfs_ino_t startino, xfs_inobt_walk_fn inobt_walk_fn, > - unsigned int inobt_records, void *data); > + xfs_ino_t startino, unsigned int flags, > + xfs_inobt_walk_fn inobt_walk_fn, unsigned int inobt_records, > + void *data); > + > +/* Only iterate inobt records within the same AG as @startino. */ > +#define XFS_INOBT_WALK_SAME_AG (XFS_IWALK_SAME_AG) > + > +#define XFS_INOBT_WALK_FLAGS_ALL (XFS_INOBT_WALK_SAME_AG) > > #endif /* __XFS_IWALK_H__ */ > diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c > index 8bb902125403..a526c28662ae 100644 > --- a/fs/xfs/xfs_qm.c > +++ b/fs/xfs/xfs_qm.c > @@ -1304,7 +1304,8 @@ xfs_qm_quotacheck( > flags |= XFS_PQUOTA_CHKD; > } > > - error = xfs_iwalk_threaded(mp, 0, xfs_qm_dqusage_adjust, 0, true, NULL); > + error = xfs_iwalk_threaded(mp, 0, 0, xfs_qm_dqusage_adjust, 0, true, > + NULL); > if (error) > goto error_return; > >
diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h index f9f35139d4b7..77c06850ac52 100644 --- a/fs/xfs/libxfs/xfs_fs.h +++ b/fs/xfs/libxfs/xfs_fs.h @@ -462,11 +462,17 @@ struct xfs_bulk_ireq { uint32_t flags; /* I/O: operation flags */ uint32_t icount; /* I: count of entries in buffer */ uint32_t ocount; /* O: count of entries filled out */ - uint32_t reserved32; /* must be zero */ + uint32_t agno; /* I: see comment for IREQ_AGNO */ uint64_t reserved[5]; /* must be zero */ }; -#define XFS_BULK_IREQ_FLAGS_ALL (0) +/* + * Only return results from the specified @agno. If @ino is zero, start + * with the first inode of @agno. + */ +#define XFS_BULK_IREQ_AGNO (1 << 0) + +#define XFS_BULK_IREQ_FLAGS_ALL (XFS_BULK_IREQ_AGNO) /* Header for a single inode request. */ struct xfs_ireq { diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c index 2ac5e100b147..f71341cd8340 100644 --- a/fs/xfs/xfs_ioctl.c +++ b/fs/xfs/xfs_ioctl.c @@ -853,7 +853,6 @@ xfs_bulk_ireq_setup( { if (hdr->icount == 0 || (hdr->flags & ~XFS_BULK_IREQ_FLAGS_ALL) || - hdr->reserved32 || memchr_inv(hdr->reserved, 0, sizeof(hdr->reserved))) return -EINVAL; @@ -861,6 +860,29 @@ xfs_bulk_ireq_setup( breq->ubuffer = ubuffer; breq->icount = hdr->icount; breq->ocount = 0; + breq->flags = 0; + + /* + * The IREQ_AGNO flag means that we only want results from a given AG. + * If @hdr->ino is zero, we start iterating in that AG. If @hdr->ino is + * beyond the specified AG then we return no results. + */ + if (hdr->flags & XFS_BULK_IREQ_AGNO) { + if (hdr->agno >= mp->m_sb.sb_agcount) + return -EINVAL; + + if (breq->startino == 0) + breq->startino = XFS_AGINO_TO_INO(mp, hdr->agno, 0); + else if (XFS_INO_TO_AGNO(mp, breq->startino) < hdr->agno) + return -EINVAL; + + breq->flags |= XFS_IBULK_SAME_AG; + + /* Asking for an inode past the end of the AG? We're done! */ + if (XFS_INO_TO_AGNO(mp, breq->startino) > hdr->agno) + return XFS_ITER_ABORT; + } else if (hdr->agno) + return -EINVAL; /* Asking for an inode past the end of the FS? We're done! */ if (XFS_INO_TO_AGNO(mp, breq->startino) >= mp->m_sb.sb_agcount) @@ -945,6 +967,7 @@ xfs_ireq_setup( breq->ubuffer = ubuffer; breq->icount = 1; breq->startino = hdr->ino; + breq->flags = 0; return 0; } diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index 745b04f59132..f92a1508a2bd 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -248,8 +248,8 @@ xfs_bulkstat( if (!bc.buf) return -ENOMEM; - error = xfs_iwalk(breq->mp, NULL, breq->startino, xfs_bulkstat_iwalk, - breq->icount, &bc); + error = xfs_iwalk(breq->mp, NULL, breq->startino, breq->flags, + xfs_bulkstat_iwalk, breq->icount, &bc); kmem_free(bc.buf); @@ -367,7 +367,7 @@ xfs_inumbers( if (xfs_bulkstat_already_done(breq->mp, breq->startino)) return 0; - error = xfs_inobt_walk(breq->mp, NULL, breq->startino, + error = xfs_inobt_walk(breq->mp, NULL, breq->startino, breq->flags, xfs_inumbers_walk, breq->icount, &ic); /* diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h index fa9fb9104c7f..e90c1fc5b981 100644 --- a/fs/xfs/xfs_itable.h +++ b/fs/xfs/xfs_itable.h @@ -12,8 +12,12 @@ struct xfs_ibulk { xfs_ino_t startino; /* start with this inode */ unsigned int icount; /* number of elements in ubuffer */ unsigned int ocount; /* number of records returned */ + unsigned int flags; /* see XFS_IBULK_FLAG_* */ }; +/* Only iterate within the same AG as startino */ +#define XFS_IBULK_SAME_AG (XFS_IWALK_SAME_AG) + /* Return value that means we want to abort the walk. */ #define XFS_IBULK_ABORT (XFS_IWALK_ABORT) diff --git a/fs/xfs/xfs_iwalk.c b/fs/xfs/xfs_iwalk.c index 80c139aed264..d21d9fe71f3d 100644 --- a/fs/xfs/xfs_iwalk.c +++ b/fs/xfs/xfs_iwalk.c @@ -519,6 +519,7 @@ xfs_iwalk( struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino, + unsigned int flags, xfs_iwalk_fn iwalk_fn, unsigned int inode_records, void *data) @@ -538,6 +539,7 @@ xfs_iwalk( int error; ASSERT(agno < mp->m_sb.sb_agcount); + ASSERT(!(flags & ~XFS_IWALK_FLAGS_ALL)); error = xfs_iwalk_alloc(&iwag); if (error) @@ -548,6 +550,8 @@ xfs_iwalk( if (error) break; iwag.startino = XFS_AGINO_TO_INO(mp, agno + 1, 0); + if (flags & XFS_INOBT_WALK_SAME_AG) + break; } xfs_iwalk_free(&iwag); @@ -586,6 +590,7 @@ int xfs_iwalk_threaded( struct xfs_mount *mp, xfs_ino_t startino, + unsigned int flags, xfs_iwalk_fn iwalk_fn, unsigned int inode_records, bool polled, @@ -597,6 +602,7 @@ xfs_iwalk_threaded( int error; ASSERT(agno < mp->m_sb.sb_agcount); + ASSERT(!(flags & ~XFS_IWALK_FLAGS_ALL)); nr_threads = xfs_pwork_guess_datadev_parallelism(mp); error = xfs_pwork_init(mp, &pctl, xfs_iwalk_ag_work, "xfs_iwalk", @@ -618,6 +624,8 @@ xfs_iwalk_threaded( iwag->sz_recs = xfs_iwalk_prefetch(inode_records); xfs_pwork_queue(&pctl, &iwag->pwork); startino = XFS_AGINO_TO_INO(mp, agno + 1, 0); + if (flags & XFS_INOBT_WALK_SAME_AG) + break; } if (polled) @@ -674,6 +682,7 @@ xfs_inobt_walk( struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino, + unsigned int flags, xfs_inobt_walk_fn inobt_walk_fn, unsigned int inobt_records, void *data) @@ -691,6 +700,7 @@ xfs_inobt_walk( int error; ASSERT(agno < mp->m_sb.sb_agcount); + ASSERT(!(flags & ~XFS_INOBT_WALK_FLAGS_ALL)); error = xfs_iwalk_alloc(&iwag); if (error) @@ -701,6 +711,8 @@ xfs_inobt_walk( if (error) break; iwag.startino = XFS_AGINO_TO_INO(mp, agno + 1, 0); + if (flags & XFS_INOBT_WALK_SAME_AG) + break; } xfs_iwalk_free(&iwag); diff --git a/fs/xfs/xfs_iwalk.h b/fs/xfs/xfs_iwalk.h index 67462861680c..6c960e10ed4d 100644 --- a/fs/xfs/xfs_iwalk.h +++ b/fs/xfs/xfs_iwalk.h @@ -14,10 +14,16 @@ typedef int (*xfs_iwalk_fn)(struct xfs_mount *mp, struct xfs_trans *tp, #define XFS_IWALK_ABORT (XFS_ITER_ABORT) int xfs_iwalk(struct xfs_mount *mp, struct xfs_trans *tp, xfs_ino_t startino, - xfs_iwalk_fn iwalk_fn, unsigned int inode_records, void *data); + unsigned int flags, xfs_iwalk_fn iwalk_fn, + unsigned int inode_records, void *data); int xfs_iwalk_threaded(struct xfs_mount *mp, xfs_ino_t startino, - xfs_iwalk_fn iwalk_fn, unsigned int inode_records, bool poll, - void *data); + unsigned int flags, xfs_iwalk_fn iwalk_fn, + unsigned int inode_records, bool poll, void *data); + +/* Only iterate inodes within the same AG as @startino. */ +#define XFS_IWALK_SAME_AG (0x1) + +#define XFS_IWALK_FLAGS_ALL (XFS_IWALK_SAME_AG) /* Walk all inode btree records in the filesystem starting from @startino. */ typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp, @@ -28,7 +34,13 @@ typedef int (*xfs_inobt_walk_fn)(struct xfs_mount *mp, struct xfs_trans *tp, #define XFS_INOBT_WALK_ABORT (XFS_IWALK_ABORT) int xfs_inobt_walk(struct xfs_mount *mp, struct xfs_trans *tp, - xfs_ino_t startino, xfs_inobt_walk_fn inobt_walk_fn, - unsigned int inobt_records, void *data); + xfs_ino_t startino, unsigned int flags, + xfs_inobt_walk_fn inobt_walk_fn, unsigned int inobt_records, + void *data); + +/* Only iterate inobt records within the same AG as @startino. */ +#define XFS_INOBT_WALK_SAME_AG (XFS_IWALK_SAME_AG) + +#define XFS_INOBT_WALK_FLAGS_ALL (XFS_INOBT_WALK_SAME_AG) #endif /* __XFS_IWALK_H__ */ diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c index 8bb902125403..a526c28662ae 100644 --- a/fs/xfs/xfs_qm.c +++ b/fs/xfs/xfs_qm.c @@ -1304,7 +1304,8 @@ xfs_qm_quotacheck( flags |= XFS_PQUOTA_CHKD; } - error = xfs_iwalk_threaded(mp, 0, xfs_qm_dqusage_adjust, 0, true, NULL); + error = xfs_iwalk_threaded(mp, 0, 0, xfs_qm_dqusage_adjust, 0, true, + NULL); if (error) goto error_return;