diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-09-07 15:36:29 +0300 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2018-10-23 14:48:29 +0300 |
| commit | fd6150051becd3a9f8039046e3af91fd9ef01e57 (patch) | |
| tree | aabefd3ff8aeb73b879e8108be4fa051652fc51f /fs/ubifs/ubifs.h | |
| parent | 83407437bbeae39551195861e51608c9638ffda4 (diff) | |
| download | linux-fd6150051becd3a9f8039046e3af91fd9ef01e57.tar.xz | |
ubifs: Store read superblock node
The superblock node is read/modified/written several times throughout
the UBIFS code. Instead of reading it from the device each time just
keep a copy in memory and write back the modified copy when necessary.
This patch helps for authentication support, here we not only have to
read the superblock node, but also have to authenticate it, which
is easier if we do it once during initialization.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs/ubifs.h')
| -rw-r--r-- | fs/ubifs/ubifs.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index 306cc7a4f725..93e1c34c097f 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -983,6 +983,7 @@ struct ubifs_debug_info; * struct ubifs_info - UBIFS file-system description data structure * (per-superblock). * @vfs_sb: VFS @struct super_block object + * @sup_node: The super block node as read from the device * * @highest_inum: highest used inode number * @max_sqnum: current global sequence number @@ -1230,6 +1231,7 @@ struct ubifs_debug_info; */ struct ubifs_info { struct super_block *vfs_sb; + struct ubifs_sb_node *sup_node; ino_t highest_inum; unsigned long long max_sqnum; @@ -1664,7 +1666,6 @@ int ubifs_write_master(struct ubifs_info *c); /* sb.c */ int ubifs_read_superblock(struct ubifs_info *c); -struct ubifs_sb_node *ubifs_read_sb_node(struct ubifs_info *c); int ubifs_write_sb_node(struct ubifs_info *c, struct ubifs_sb_node *sup); int ubifs_fixup_free_space(struct ubifs_info *c); int ubifs_enable_encryption(struct ubifs_info *c); |