X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=bluesky%2Finode.c;h=a052fb4b04b853532011432c7b1c56efca4da7dc;hb=d514caf49faff9295d0e497d3b6b8856fe83f8d0;hp=377364c678fe68367764af3bbe589c75a43f9fe7;hpb=0e3a9c0defb08f388fea2c2eb393dd39d9e95e45;p=bluesky.git diff --git a/bluesky/inode.c b/bluesky/inode.c index 377364c..a052fb4 100644 --- a/bluesky/inode.c +++ b/bluesky/inode.c @@ -138,16 +138,12 @@ uint64_t bluesky_fs_alloc_inode(BlueSkyFS *fs) return inum; } -BlueSkyInode *bluesky_new_inode(uint64_t inum, BlueSkyFS *fs, - BlueSkyFileType type) +/* Perform type-specification initialization of an inode. Normally performed + * in bluesky_new_inode, but can be separated if an inode is created first, + * then deserialized. */ +void bluesky_init_inode(BlueSkyInode *i, BlueSkyFileType type) { - BlueSkyInode *i = g_new0(BlueSkyInode, 1); - - i->lock = g_mutex_new(); - i->refcount = 1; i->type = type; - i->fs = fs; - i->inum = inum; switch (type) { case BLUESKY_REGULAR: @@ -158,21 +154,30 @@ BlueSkyInode *bluesky_new_inode(uint64_t inum, BlueSkyFS *fs, i->dirhash = g_hash_table_new(g_str_hash, g_str_equal); i->dirhash_folded = g_hash_table_new(g_str_hash, g_str_equal); break; - case BLUESKY_BLOCK: - case BLUESKY_CHARACTER: - case BLUESKY_SYMLINK: - case BLUESKY_SOCKET: - case BLUESKY_FIFO: + default: break; } +} + +BlueSkyInode *bluesky_new_inode(uint64_t inum, BlueSkyFS *fs, + BlueSkyFileType type) +{ + BlueSkyInode *i = g_new0(BlueSkyInode, 1); + + i->lock = g_mutex_new(); + i->refcount = 1; + i->fs = fs; + i->inum = inum; + i->change_count = 1; + bluesky_init_inode(i, type); return i; } /* Retrieve an inode from the filesystem. Eventually this will be a cache and * so we might need to go fetch the inode from elsewhere; for now all - * filesystem state is stored here. inode is returned locked with a reference - * held. */ + * filesystem state is stored here. inode is returned with a reference held + * but not locked. */ BlueSkyInode *bluesky_get_inode(BlueSkyFS *fs, uint64_t inum) { BlueSkyInode *inode = NULL; @@ -256,10 +261,18 @@ void bluesky_inode_fetch(BlueSkyFS *fs, uint64_t inum) if (data == NULL) return; - BlueSkyInode *inode = bluesky_deserialize_inode(fs, data->data); - if (inode != NULL) { - bluesky_insert_inode(fs, inode); + BlueSkyInode *inode = bluesky_new_inode(inum, fs, BLUESKY_PENDING); + bluesky_inode_ref(inode); + g_mutex_lock(inode->lock); + bluesky_insert_inode(fs, inode); + + if (!bluesky_deserialize_inode(inode, data->data)) { + g_hash_table_remove(fs->inodes, &inode->inum); + bluesky_inode_unref(inode); } + + g_mutex_unlock(inode->lock); + bluesky_inode_unref(inode); } /* Synchronize filesystem superblock to stable storage. */