diff options
Diffstat (limited to 'fs/btrfs/tree-log.c')
| -rw-r--r-- | fs/btrfs/tree-log.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index d7693368f34f..472918a5bc73 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -2818,6 +2818,52 @@ static void wait_for_writer(struct btrfs_root *root) finish_wait(&root->log_writer_wait, &wait); } +void btrfs_init_log_ctx(struct btrfs_log_ctx *ctx, struct inode *inode) +{ + ctx->log_ret = 0; + ctx->log_transid = 0; + ctx->log_new_dentries = false; + ctx->logging_new_name = false; + ctx->logging_new_delayed_dentries = false; + ctx->logged_before = false; + ctx->inode = inode; + INIT_LIST_HEAD(&ctx->list); + INIT_LIST_HEAD(&ctx->ordered_extents); + INIT_LIST_HEAD(&ctx->conflict_inodes); + ctx->num_conflict_inodes = 0; + ctx->logging_conflict_inodes = false; + ctx->scratch_eb = NULL; +} + +void btrfs_init_log_ctx_scratch_eb(struct btrfs_log_ctx *ctx) +{ + struct btrfs_inode *inode = BTRFS_I(ctx->inode); + + if (!test_bit(BTRFS_INODE_NEEDS_FULL_SYNC, &inode->runtime_flags) && + !test_bit(BTRFS_INODE_COPY_EVERYTHING, &inode->runtime_flags)) + return; + + /* + * Don't care about allocation failure. This is just for optimization, + * if we fail to allocate here, we will try again later if needed. + */ + ctx->scratch_eb = alloc_dummy_extent_buffer(inode->root->fs_info, 0); +} + +void btrfs_release_log_ctx_extents(struct btrfs_log_ctx *ctx) +{ + struct btrfs_ordered_extent *ordered; + struct btrfs_ordered_extent *tmp; + + ASSERT(inode_is_locked(ctx->inode)); + + list_for_each_entry_safe(ordered, tmp, &ctx->ordered_extents, log_list) { + list_del_init(&ordered->log_list); + btrfs_put_ordered_extent(ordered); + } +} + + static inline void btrfs_remove_log_ctx(struct btrfs_root *root, struct btrfs_log_ctx *ctx) { |