ba65ae4729
To hold multiple versions of a filesystem in one sb instance, a new on-memory structure is necessary to handle one or more checkpoints. This adds a red-black tree of checkpoints to nilfs object, and adds lookup and create functions for them. Each checkpoint is represented by "nilfs_root" structure, and this structure has rb_node to configure the rb-tree. The nilfs_root object is identified with a checkpoint number. For each snapshot, a nilfs_root object is allocated and the checkpoint number of snapshot is assigned to it. For a regular mount (i.e. current mode mount), NILFS_CPTREE_CURRENT_CNO constant is assigned to the corresponding nilfs_root object. Each nilfs_root object has an ifile inode and some counters. These items will displace those of nilfs_sb_info structure in successive patches. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| alloc.c | ||
| alloc.h | ||
| bmap.c | ||
| bmap.h | ||
| btnode.c | ||
| btnode.h | ||
| btree.c | ||
| btree.h | ||
| cpfile.c | ||
| cpfile.h | ||
| dat.c | ||
| dat.h | ||
| dir.c | ||
| direct.c | ||
| direct.h | ||
| file.c | ||
| gcdat.c | ||
| gcinode.c | ||
| ifile.c | ||
| ifile.h | ||
| inode.c | ||
| ioctl.c | ||
| mdt.c | ||
| mdt.h | ||
| namei.c | ||
| nilfs.h | ||
| page.c | ||
| page.h | ||
| recovery.c | ||
| sb.h | ||
| segbuf.c | ||
| segbuf.h | ||
| segment.c | ||
| segment.h | ||
| sufile.c | ||
| sufile.h | ||
| super.c | ||
| the_nilfs.c | ||
| the_nilfs.h | ||