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| author | Anton Altaparmakov <aia21@cantab.net> | 2005-04-06 16:09:21 +0100 |
|---|---|---|
| committer | Anton Altaparmakov <aia21@cantab.net> | 2005-05-05 11:48:00 +0100 |
| commit | 7fafb8b634121f4fa35ff92f85737f8bc2259f06 (patch) | |
| tree | ed581b567781b6b2a99a9f2059e3f3c324a0c928 /fs/ntfs | |
| parent | bb3cf33509009132cf8c7a7729f9d26c0c5fa961 (diff) | |
| download | lwn-7fafb8b634121f4fa35ff92f85737f8bc2259f06.tar.gz lwn-7fafb8b634121f4fa35ff92f85737f8bc2259f06.zip | |
NTFS: Minor cleanup: Define and use NTFS_MAX_CLUSTER_SIZE constant instead
of hard coded 0x10000 in fs/ntfs/super.c.
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
Diffstat (limited to 'fs/ntfs')
| -rw-r--r-- | fs/ntfs/ChangeLog | 2 | ||||
| -rw-r--r-- | fs/ntfs/ntfs.h | 3 | ||||
| -rw-r--r-- | fs/ntfs/super.c | 6 |
3 files changed, 8 insertions, 3 deletions
diff --git a/fs/ntfs/ChangeLog b/fs/ntfs/ChangeLog index 52f868a9662b..788e3bd2528b 100644 --- a/fs/ntfs/ChangeLog +++ b/fs/ntfs/ChangeLog @@ -111,6 +111,8 @@ ToDo/Notes: refusing the mount. Thanks to Bernd Casimir for pointing this problem out. - Update attribute definition handling. + - Add NTFS_MAX_CLUSTER_SIZE and NTFS_MAX_PAGES_PER_CLUSTER constants. + - Use NTFS_MAX_CLUSTER_SIZE in super.c instead of hard coding 0x10000. 2.1.22 - Many bug and race fixes and error handling improvements. diff --git a/fs/ntfs/ntfs.h b/fs/ntfs/ntfs.h index e85f6e928b1e..446b5014115c 100644 --- a/fs/ntfs/ntfs.h +++ b/fs/ntfs/ntfs.h @@ -31,6 +31,7 @@ #include <linux/fs.h> #include <linux/nls.h> #include <linux/smp.h> +#include <linux/pagemap.h> #include "types.h" #include "volume.h" @@ -42,6 +43,8 @@ typedef enum { NTFS_SB_MAGIC = 0x5346544e, /* 'NTFS' */ NTFS_MAX_NAME_LEN = 255, NTFS_MAX_ATTR_NAME_LEN = 255, + NTFS_MAX_CLUSTER_SIZE = 64 * 1024, /* 64kiB */ + NTFS_MAX_PAGES_PER_CLUSTER = NTFS_MAX_CLUSTER_SIZE / PAGE_CACHE_SIZE, } NTFS_CONSTANTS; /* Global variables. */ diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c index 6f752ea765c3..8e50aa929f1c 100644 --- a/fs/ntfs/super.c +++ b/fs/ntfs/super.c @@ -561,9 +561,9 @@ static BOOL is_boot_sector_ntfs(const struct super_block *sb, default: goto not_ntfs; } - /* Check the cluster size is not above 65536 bytes. */ + /* Check the cluster size is not above the maximum (64kiB). */ if ((u32)le16_to_cpu(b->bpb.bytes_per_sector) * - b->bpb.sectors_per_cluster > 0x10000) + b->bpb.sectors_per_cluster > NTFS_MAX_CLUSTER_SIZE) goto not_ntfs; /* Check reserved/unused fields are really zero. */ if (le16_to_cpu(b->bpb.reserved_sectors) || @@ -2585,7 +2585,7 @@ err_out_now: */ kmem_cache_t *ntfs_name_cache; -/* Slab caches for efficient allocation/deallocation of of inodes. */ +/* Slab caches for efficient allocation/deallocation of inodes. */ kmem_cache_t *ntfs_inode_cache; kmem_cache_t *ntfs_big_inode_cache; |