Start constructing the refcount btree implementation by establishing
the on-disk format and everything needed to read, write, and
manipulate the refcount btree blocks.
[Initialize the in-core mount context.]
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
[hch: allocate the cursor with KM_NOFS to quiet lockdep]
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
v2: Calculate a separate maxlevels for the refcount btree.
v3: Enable the tracking of per-cursor stats for refcount btrees.
The refcount update code will use this to guess if it's time to
split a refcountbt update across two transactions to avoid
exhausing the transaction reservation.
xfs_refcountbt_init_cursor can be called under the ilock, so
use KM_NOFS to prevent fs activity with a lock held. This
should shut up some of the lockdep warnings.
---
include/libxfs.h | 1 +
libxfs/init.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/include/libxfs.h b/include/libxfs.h
index cf59d6c..ec8f6ab 100644
--- a/include/libxfs.h
+++ b/include/libxfs.h
@@ -79,6 +79,7 @@ extern uint32_t crc32c_le(uint32_t crc, unsigned char const *p, size_t len);
#include "xfs_trans.h"
#include "xfs_rmap_btree.h"
#include "xfs_rmap.h"
+#include "xfs_refcount_btree.h"
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
diff --git a/libxfs/init.c b/libxfs/init.c
index 828ae3e..c962d3e 100644
--- a/libxfs/init.c
+++ b/libxfs/init.c
@@ -32,6 +32,7 @@
#include "xfs_inode.h"
#include "xfs_trans.h"
#include "xfs_rmap_btree.h"
+#include "xfs_refcount_btree.h"
#include "libxfs.h" /* for now */
@@ -689,6 +690,7 @@ libxfs_mount(
xfs_bmap_compute_maxlevels(mp, XFS_ATTR_FORK);
xfs_ialloc_compute_maxlevels(mp);
xfs_rmapbt_compute_maxlevels(mp);
+ xfs_refcountbt_compute_maxlevels(mp);
if (sbp->sb_imax_pct) {
/* Make sure the maximum inode count is a multiple of the
--
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