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authorDave Chinner <dchinner@redhat.com>2023-02-13 09:14:54 +1100
committerDave Chinner <dchinner@redhat.com>2023-02-13 09:14:54 +1100
commit5f36b2ce79f254dd00cdc88374271df7ce843d56 (patch)
treeaf462c68a7e91f992134c5b861f8215c28c0659e /fs/xfs/libxfs/xfs_alloc.h
parentdb4710fd12248e5d4c3842520cd13f034136576b (diff)
xfs: introduce xfs_alloc_vextent_exact_bno()
Two of the callers to xfs_alloc_vextent_this_ag() actually want exact block number allocation, not anywhere-in-ag allocation. Split this out from _this_ag() as a first class citizen so no external extent allocation code needs to care about args->type anymore. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Diffstat (limited to 'fs/xfs/libxfs/xfs_alloc.h')
-rw-r--r--fs/xfs/libxfs/xfs_alloc.h13
1 files changed, 10 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc.h b/fs/xfs/libxfs/xfs_alloc.h
index 45a428e770f0..63d5ad4ed8a3 100644
--- a/fs/xfs/libxfs/xfs_alloc.h
+++ b/fs/xfs/libxfs/xfs_alloc.h
@@ -114,10 +114,10 @@ xfs_alloc_log_agf(
uint32_t fields);/* mask of fields to be logged (XFS_AGF_...) */
/*
- * Allocate an extent in the specific AG defined by args->fsbno. If there is no
- * space in that AG, then the allocation will fail.
+ * Allocate an extent anywhere in the specific AG given. If there is no
+ * space matching the requirements in that AG, then the allocation will fail.
*/
-int xfs_alloc_vextent_this_ag(struct xfs_alloc_arg *args);
+int xfs_alloc_vextent_this_ag(struct xfs_alloc_arg *args, xfs_agnumber_t agno);
/*
* Allocate an extent as close to the target as possible. If there are not
@@ -127,6 +127,13 @@ int xfs_alloc_vextent_near_bno(struct xfs_alloc_arg *args,
xfs_fsblock_t target);
/*
+ * Allocate an extent exactly at the target given. If this is not possible
+ * then the allocation fails.
+ */
+int xfs_alloc_vextent_exact_bno(struct xfs_alloc_arg *args,
+ xfs_fsblock_t target);
+
+/*
* Best effort full filesystem allocation scan.
*
* Locality aware allocation will be attempted in the initial AG, but on failure