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Diffstat (limited to 'fs/btrfs/btrfs_inode.h')
-rw-r--r--fs/btrfs/btrfs_inode.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index a79fa0726f1d..b99fb0273292 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -525,6 +525,19 @@ static inline void btrfs_update_inode_mapping_flags(struct btrfs_inode *inode)
mapping_set_stable_writes(inode->vfs_inode.i_mapping);
}
+static inline void btrfs_set_inode_mapping_order(struct btrfs_inode *inode)
+{
+ /* Metadata inode should not reach here. */
+ ASSERT(is_data_inode(inode));
+
+ /* We only allow BITS_PER_LONGS blocks for each bitmap. */
+#ifdef CONFIG_BTRFS_EXPERIMENTAL
+ mapping_set_folio_order_range(inode->vfs_inode.i_mapping, 0,
+ ilog2(((BITS_PER_LONG << inode->root->fs_info->sectorsize_bits)
+ >> PAGE_SHIFT)));
+#endif
+}
+
/* Array of bytes with variable length, hexadecimal format 0x1234 */
#define CSUM_FMT "0x%*phN"
#define CSUM_FMT_VALUE(size, bytes) size, bytes