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| author |   Russell King <rmk+kernel@armlinux.org.uk> | 2019-06-04 14:49:36 +0100 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2019-06-26 20:14:13 -0400 |
| commit | 275f5b99d6d4e6fccb7cea6783460939856c1306 (patch) | |
| tree | 9b19ace4d37baa130bafa853bd130c2939cd90a0 /fs/adfs/adfs.h | |
| parent | fs/adfs: add helper to get discrecord from map (diff) | |
| download | linux-dev-275f5b99d6d4e6fccb7cea6783460939856c1306.tar.xz linux-dev-275f5b99d6d4e6fccb7cea6783460939856c1306.zip | |
fs/adfs: add helper to get filesystem size
Add a helper to get the filesystem size from the disc record and
eliminate the "s_size" member of the adfs superblock structure.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/adfs/adfs.h')
| -rw-r--r-- | fs/adfs/adfs.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h index 5a72a0ea03bd..ab13b5dd34a3 100644 --- a/fs/adfs/adfs.h +++ b/fs/adfs/adfs.h @@ -58,7 +58,6 @@ struct adfs_sb_info { __u32 s_ids_per_zone; /* max. no ids in one zone */ __u32 s_idlen; /* length of ID in map */ __u32 s_map_size; /* sector size of a map */ - unsigned long s_size; /* total size (in blocks) of this fs */ signed int s_map2blk; /* shift left by this for map->sector*/ unsigned int s_log2sharesize;/* log2 share size */ __le32 s_version; /* disc format version */ @@ -201,3 +200,9 @@ struct adfs_discrecord *adfs_map_discrecord(struct adfs_discmap *dm) { return (void *)(dm[0].dm_bh->b_data + 4); } + +static inline u64 adfs_disc_size(const struct adfs_discrecord *dr) +{ + return (u64)le32_to_cpu(dr->disc_size_high) << 32 | + le32_to_cpu(dr->disc_size); +} |