41b93bc1ee
LogFS does not use a specialized area to maintain the inodes. The inodes information is kept in a specialized file called inode file. Similarly, the segment information is kept in a segment file. Since the segment file also has an inode which is kept in the inode file, the inode for segment file must be evicted before the inode for inode file. The change fixes the following BUG during unmount Pid: 2057, comm: umount Not tainted 3.5.0-rc6+ #25 Bochs Bochs RIP: 0010:[<ffffffffa005c5f2>] [<ffffffffa005c5f2>] move_page_to_btree+0x32/0x1f0 [logfs] Process umount (pid: 2057, threadinfo ...) Call Trace: [<ffffffff8112adca>] ? find_get_pages+0x2a/0x180 [<ffffffffa00549f5>] logfs_invalidatepage+0x85/0x90 [logfs] [<ffffffff81136c51>] truncate_inode_page+0xb1/0xd0 [<ffffffff81136dcf>] truncate_inode_pages_range+0x15f/0x490 [<ffffffff81558549>] ? printk+0x78/0x7a [<ffffffff81137185>] truncate_inode_pages+0x15/0x20 [<ffffffffa005b7fc>] logfs_evict_inode+0x6c/0x190 [logfs] [<ffffffff8155c75b>] ? _raw_spin_unlock+0x2b/0x40 [<ffffffff8119e3d7>] evict+0xa7/0x1b0 [<ffffffff8119ea6e>] dispose_list+0x3e/0x60 [<ffffffff8119f1c4>] evict_inodes+0xf4/0x110 [<ffffffff81185b53>] generic_shutdown_super+0x53/0xf0 [<ffffffffa005d8f2>] logfs_kill_sb+0x52/0xf0 [logfs] [<ffffffff81185ec5>] deactivate_locked_super+0x45/0x80 [<ffffffff81186a4a>] deactivate_super+0x4a/0x70 [<ffffffff811a228e>] mntput_no_expire+0xde/0x140 [<ffffffff811a30ff>] sys_umount+0x6f/0x3a0 [<ffffffff8155d8e9>] system_call_fastpath+0x16/0x1b ---[ end trace 45f7752082cefafd ]--- Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com> |
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| .. | ||
| compr.c | ||
| dev_bdev.c | ||
| dev_mtd.c | ||
| dir.c | ||
| file.c | ||
| gc.c | ||
| inode.c | ||
| journal.c | ||
| Kconfig | ||
| logfs_abi.h | ||
| logfs.h | ||
| Makefile | ||
| readwrite.c | ||
| segment.c | ||
| super.c | ||