diff options
author | Darrick J. Wong <darrick.wong@oracle.com> | 2020-02-19 17:02:54 -0800 |
---|---|---|
committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-06-01 21:16:45 -0700 |
commit | 30943144c77b2bfc0c3452b1ecf1a24014e909f4 (patch) | |
tree | d99a42eac93a3b803e52645336a5385fbe4cd3e0 /fs | |
parent | 4b9c7054f8bc76adc127ce9812a0b1bb23213163 (diff) |
xfs: dynamically create the realtime rmapbt inode when attaching rtdev
If the administrator asks us to add a realtime volume to an existing
rmap filesystem, we must allocate and attach the rtrmapbt inode to the
system prior to enabling the rt volume.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/xfs/xfs_rtalloc.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 976a7b017c82..000073e2fcc0 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -22,6 +22,7 @@ #include "xfs_da_format.h" #include "xfs_imeta.h" #include "xfs_error.h" +#include "xfs_rtrmap_btree.h" /* * Read and return the summary information for a given extent size, @@ -874,6 +875,60 @@ xfs_alloc_rsum_cache( * Visible (exported) functions. */ + +/* Add a realtime rmap btree inode. */ +STATIC int +xfs_growfs_rt_rmap( + struct xfs_mount *mp) +{ + struct xfs_imeta_end ic; + struct xfs_inode *ip = NULL; + struct xfs_trans *tp; + int error; + + if (!xfs_sb_version_hasrmapbt(&mp->m_sb) || mp->m_rrmapip != NULL) + return 0; + + /* rtrmapbt requires metadir */ + if (!xfs_sb_version_hasmetadir(&mp->m_sb)) + return -EINVAL; + + /* Ensure the path to the rtrmapbt inode exists. */ + error = xfs_imeta_ensure_dirpath(mp, &XFS_IMETA_RTRMAPBT); + if (error) + return error; + + /* Create the rtrmapbt inode. */ + error = xfs_trans_alloc(mp, &M_RES(mp)->tr_imeta_create, + xfs_imeta_create_space_res(mp), 0, 0, &tp); + if (error) + return error; + + error = xfs_rtrmapbt_create(&tp, &ic, &ip); + if (error) + goto out_cancel; + + error = xfs_trans_commit(tp); + xfs_finish_inode_setup(ip); + xfs_imeta_end_update(mp, &ic, error); + if (error) { + xfs_irele(ip); + return error; + } + + mp->m_rrmapip = ip; + return 0; + +out_cancel: + xfs_trans_cancel(tp); + xfs_imeta_end_update(mp, &ic, error); + if (ip) { + xfs_finish_inode_setup(ip); + xfs_irele(ip); + } + return error; +} + /* * Grow the realtime area of the filesystem. */ @@ -955,6 +1010,9 @@ xfs_growfs_rt( error = xfs_growfs_rt_alloc(mp, rsumblocks, nrsumblocks, mp->m_rsumip); if (error) return error; + error = xfs_growfs_rt_rmap(mp); + if (error) + return error; rsum_cache = mp->m_rsum_cache; if (nrbmblocks != sbp->sb_rbmblocks) |