From: Chris Mason Date: Fri, 18 Apr 2008 20:13:31 +0000 (-0400) Subject: Btrfs: Scale the bdi ra_pages by the number of devices in the FS X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4575c9cceeca2f51c50536850e15e1dc5187f3d9;p=linux-beck.git Btrfs: Scale the bdi ra_pages by the number of devices in the FS Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index b479cdfe3ee8..46188ee16623 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -932,7 +932,7 @@ static int setup_bdi(struct btrfs_fs_info *info, struct backing_dev_info *bdi) #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) bdi_init(bdi); #endif - bdi->ra_pages = default_backing_dev_info.ra_pages * 4; + bdi->ra_pages = default_backing_dev_info.ra_pages; bdi->state = 0; bdi->capabilities = default_backing_dev_info.capabilities; bdi->unplug_io_fn = btrfs_unplug_io_fn; @@ -1214,6 +1214,8 @@ struct btrfs_root *open_ctree(struct super_block *sb, (unsigned long long)fs_devices->num_devices); goto fail_sb_buffer; } + fs_info->bdi.ra_pages *= btrfs_super_num_devices(disk_super); + nodesize = btrfs_super_nodesize(disk_super); leafsize = btrfs_super_leafsize(disk_super); sectorsize = btrfs_super_sectorsize(disk_super);