From 572d9ab7845ea0e043ec34cd733a75228130ad03 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Wed, 5 Feb 2014 15:26:17 +0100 Subject: btrfs: add support for processing pending changes There are some actions that modify global filesystem state but cannot be performed at the time of request, but later at the transaction commit time when the filesystem is in a known state. For example enabling new incompat features on-the-fly or issuing transaction commit from unsafe contexts (sysfs handlers). Signed-off-by: David Sterba --- fs/btrfs/disk-io.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'fs/btrfs/disk-io.c') diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 1bf9f897065d..fd80c0d98421 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2834,6 +2834,12 @@ retry_root_backup: if (btrfs_test_opt(tree_root, CHANGE_INODE_CACHE)) btrfs_set_opt(tree_root->fs_info->mount_opt, INODE_MAP_CACHE); + /* + * Mount does not set all options immediatelly, we can do it now and do + * not have to wait for transaction commit + */ + btrfs_apply_pending_changes(fs_info); + #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY if (btrfs_test_opt(tree_root, CHECK_INTEGRITY)) { ret = btrfsic_mount(tree_root, fs_devices, -- cgit v1.2.3