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| author |   Darrick J. Wong <djwong@kernel.org> | 2024-11-20 16:20:56 -0800 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2024-12-23 13:06:12 -0800 |
| commit | 4ee3113aaf3f6a3c24fcf952d8489363f56ab375 (patch) | |
| tree | ec4530b10b8cde56eb444d491668297809b333a3 | |
| parent | xfs: wire up realtime refcount btree cursors (diff) | |
| download | wireguard-linux-4ee3113aaf3f6a3c24fcf952d8489363f56ab375.tar.xz wireguard-linux-4ee3113aaf3f6a3c24fcf952d8489363f56ab375.zip | |
xfs: create routine to allocate and initialize a realtime refcount btree inode
Create a library routine to allocate and initialize an empty realtime
refcountbt inode. We'll use this for growfs, mkfs, and repair.
Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to '')
| -rw-r--r-- | fs/xfs/libxfs/xfs_rtgroup.c | 2 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_rtrefcount_btree.c | 28 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_rtrefcount_btree.h | 3 |
3 files changed, 33 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_rtgroup.c b/fs/xfs/libxfs/xfs_rtgroup.c index d5ecc2f6c5c2..eab655a4a9ef 100644 --- a/fs/xfs/libxfs/xfs_rtgroup.c +++ b/fs/xfs/libxfs/xfs_rtgroup.c @@ -34,6 +34,7 @@ #include "xfs_metafile.h" #include "xfs_metadir.h" #include "xfs_rtrmap_btree.h" +#include "xfs_rtrefcount_btree.h" /* Find the first usable fsblock in this rtgroup. */ static inline uint32_t @@ -382,6 +383,7 @@ static const struct xfs_rtginode_ops xfs_rtginode_ops[XFS_RTGI_MAX] = { .fmt_mask = 1U << XFS_DINODE_FMT_META_BTREE, /* same comment about growfs and rmap inodes applies here */ .enabled = xfs_has_reflink, + .create = xfs_rtrefcountbt_create, }, }; diff --git a/fs/xfs/libxfs/xfs_rtrefcount_btree.c b/fs/xfs/libxfs/xfs_rtrefcount_btree.c index 6a5bc7ea42fb..151fb1ef7db1 100644 --- a/fs/xfs/libxfs/xfs_rtrefcount_btree.c +++ b/fs/xfs/libxfs/xfs_rtrefcount_btree.c @@ -721,3 +721,31 @@ xfs_iflush_rtrefcount( ifp->if_broot_bytes, dfp, XFS_DFORK_SIZE(dip, ip->i_mount, XFS_DATA_FORK)); } + +/* + * Create a realtime refcount btree inode. + */ +int +xfs_rtrefcountbt_create( + struct xfs_rtgroup *rtg, + struct xfs_inode *ip, + struct xfs_trans *tp, + bool init) +{ + struct xfs_ifork *ifp = xfs_ifork_ptr(ip, XFS_DATA_FORK); + struct xfs_mount *mp = ip->i_mount; + struct xfs_btree_block *broot; + + ifp->if_format = XFS_DINODE_FMT_META_BTREE; + ASSERT(ifp->if_broot_bytes == 0); + ASSERT(ifp->if_bytes == 0); + + /* Initialize the empty incore btree root. */ + broot = xfs_broot_realloc(ifp, + xfs_rtrefcount_broot_space_calc(mp, 0, 0)); + if (broot) + xfs_btree_init_block(mp, broot, &xfs_rtrefcountbt_ops, 0, 0, + ip->i_ino); + xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE | XFS_ILOG_DBROOT); + return 0; +} diff --git a/fs/xfs/libxfs/xfs_rtrefcount_btree.h b/fs/xfs/libxfs/xfs_rtrefcount_btree.h index e558a10c4744..a99b7a8aec86 100644 --- a/fs/xfs/libxfs/xfs_rtrefcount_btree.h +++ b/fs/xfs/libxfs/xfs_rtrefcount_btree.h @@ -183,4 +183,7 @@ void xfs_rtrefcountbt_to_disk(struct xfs_mount *mp, struct xfs_rtrefcount_root *dblock, int dblocklen); void xfs_iflush_rtrefcount(struct xfs_inode *ip, struct xfs_dinode *dip); +int xfs_rtrefcountbt_create(struct xfs_rtgroup *rtg, struct xfs_inode *ip, + struct xfs_trans *tp, bool init); + #endif /* __XFS_RTREFCOUNT_BTREE_H__ */ |