search for: btrfs_super_flag_error

...mit_super, sb->s_flags has MS_RDONLY flag, + * and btrfs will skip to write sb directly to keep + * ERROR state on disk. + * + * 2. when btrfs flips readonly just in btrfs_commit_super, + * and in such case, btrfs cannnot write sb via btrfs_commit_super, + * and since fs_state has been set BTRFS_SUPER_FLAG_ERROR flag, + * btrfs will directly write sb. + */ if (!(fs_info->sb->s_flags & MS_RDONLY)) { - ret = btrfs_commit_super(root); + ret = btrfs_commit_super(root); + if (ret) + printk(KERN_ERR "btrfs: commit super ret %d\n", ret); + } + + if (fs_info->fs_state & BTRFS_S...

...;root->fs_info->ordered_extent_lock); diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index bdbb94f..af0b566 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -2703,7 +2703,7 @@ static noinline_for_stack int scrub_supers(struct scrub_ctx *sctx, if (root->fs_info->fs_state & BTRFS_SUPER_FLAG_ERROR) return -EIO; - gen = root->fs_info->last_trans_committed; + gen = atomic64_read(&root->fs_info->last_trans_committed); for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) { bytenr = btrfs_sb_offset(i); diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index e7992...

This is a first draft of a subvolume quota implementation. It is possible to limit subvolumes and any group of subvolumes and also to track the amount of space that will get freed when deleting snapshots. The current version is functionally incomplete, with the main missing feature being the initial scan and rescan of an existing filesystem. I put some effort into writing an introduction into

I''ve been working to try to improve the write-ahead log''s performance, and I found that the bottleneck addresses in the checksum items, especially when we want to make a random write on a large file, e.g a 4G file. Then a idea for this suggested by Chris is to use sub transaction ids and just to log the part of inode that had changed since either the last log commit or the last