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| author | Chandan Babu R <chandan.babu@oracle.com> | 2022-03-09 12:58:37 +0000 |
|---|---|---|
| committer | Chandan Babu R <chandan.babu@oracle.com> | 2022-04-13 07:02:45 +0000 |
| commit | c3c4ecb529c5a1f0590cffb70649d407ee79b8a8 (patch) | |
| tree | ab980fbbcd460bfb26e8e79ed49b99e5e3acc77d /fs/xfs/xfs_itable.c | |
| parent | 5b35d922c5279804be87cab60e4810403038488b (diff) | |
| download | lwn-c3c4ecb529c5a1f0590cffb70649d407ee79b8a8.tar.gz lwn-c3c4ecb529c5a1f0590cffb70649d407ee79b8a8.zip | |
xfs: Enable bulkstat ioctl to support 64-bit per-inode extent counters
The following changes are made to enable userspace to obtain 64-bit extent
counters,
1. Carve out a new 64-bit field xfs_bulkstat->bs_extents64 from
xfs_bulkstat->bs_pad[] to hold 64-bit extent counter.
2. Define the new flag XFS_BULK_IREQ_BULKSTAT for userspace to indicate that
it is capable of receiving 64-bit extent counters.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Suggested-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_itable.c')
| -rw-r--r-- | fs/xfs/xfs_itable.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index 71ed4905f206..f74c9fff72bb 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -64,6 +64,7 @@ xfs_bulkstat_one_int( struct xfs_inode *ip; /* incore inode pointer */ struct inode *inode; struct xfs_bulkstat *buf = bc->buf; + xfs_extnum_t nextents; int error = -EINVAL; if (xfs_internal_inum(mp, ino)) @@ -102,7 +103,13 @@ xfs_bulkstat_one_int( buf->bs_xflags = xfs_ip2xflags(ip); buf->bs_extsize_blks = ip->i_extsize; - buf->bs_extents = xfs_ifork_nextents(&ip->i_df); + + nextents = xfs_ifork_nextents(&ip->i_df); + if (!(bc->breq->flags & XFS_IBULK_NREXT64)) + buf->bs_extents = min(nextents, XFS_MAX_EXTCNT_DATA_FORK_SMALL); + else + buf->bs_extents64 = nextents; + xfs_bulkstat_health(ip, buf); buf->bs_aextents = xfs_ifork_nextents(ip->i_afp); buf->bs_forkoff = XFS_IFORK_BOFF(ip); |