diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2024-11-20 16:21:00 -0800 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2024-12-23 13:06:13 -0800 |
| commit | 5519251da0b0ae1224d7e0ce8dee3612b571c01c (patch) | |
| tree | 100a078c69ad2efe3d1ec3df1490aa2d5f3ebc17 /fs/xfs/xfs_reflink.c | |
| parent | 26e97d9b4b7601bc29535b9e9edc8f8aa5dae8d4 (diff) | |
xfs: enable sharing of realtime file blocks
Update the remapping routines to be able to handle realtime files.
Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/xfs_reflink.c')
| -rw-r--r-- | fs/xfs/xfs_reflink.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index 24f545687b87..78b47b2ac124 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -33,6 +33,7 @@ #include "xfs_rtrefcount_btree.h" #include "xfs_rtalloc.h" #include "xfs_rtgroup.h" +#include "xfs_metafile.h" /* * Copy on Write of Shared Blocks @@ -1187,14 +1188,28 @@ out_error: static int xfs_reflink_ag_has_free_space( struct xfs_mount *mp, - xfs_agnumber_t agno) + struct xfs_inode *ip, + xfs_fsblock_t fsb) { struct xfs_perag *pag; + xfs_agnumber_t agno; int error = 0; if (!xfs_has_rmapbt(mp)) return 0; + if (XFS_IS_REALTIME_INODE(ip)) { + struct xfs_rtgroup *rtg; + xfs_rgnumber_t rgno; + + rgno = xfs_rtb_to_rgno(mp, fsb); + rtg = xfs_rtgroup_get(mp, rgno); + if (xfs_metafile_resv_critical(rtg_rmap(rtg))) + error = -ENOSPC; + xfs_rtgroup_put(rtg); + return error; + } + agno = XFS_FSB_TO_AGNO(mp, fsb); pag = xfs_perag_get(mp, agno); if (xfs_ag_resv_critical(pag, XFS_AG_RESV_RMAPBT) || xfs_ag_resv_critical(pag, XFS_AG_RESV_METADATA)) @@ -1308,8 +1323,8 @@ xfs_reflink_remap_extent( /* No reflinking if the AG of the dest mapping is low on space. */ if (dmap_written) { - error = xfs_reflink_ag_has_free_space(mp, - XFS_FSB_TO_AGNO(mp, dmap->br_startblock)); + error = xfs_reflink_ag_has_free_space(mp, ip, + dmap->br_startblock); if (error) goto out_cancel; } @@ -1568,8 +1583,8 @@ xfs_reflink_remap_prep( /* Check file eligibility and prepare for block sharing. */ ret = -EINVAL; - /* Don't reflink realtime inodes */ - if (XFS_IS_REALTIME_INODE(src) || XFS_IS_REALTIME_INODE(dest)) + /* Can't reflink between data and rt volumes */ + if (XFS_IS_REALTIME_INODE(src) != XFS_IS_REALTIME_INODE(dest)) goto out_unlock; /* Don't share DAX file data with non-DAX file. */ |