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authorKrzysztof Błaszkowski <kb@sysmikro.com.pl>2016-05-31 08:45:13 +0200
committerChristoph Hellwig <hch@lst.de>2016-06-01 09:01:28 +0200
commit0d83f7fc83f77d1cc8395b9e851325d8cc1892e3 (patch)
tree9cfc6aef0a098884097fd37bb413639e8e76f461 /fs/freevxfs/vxfs_dir.h
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff)
downloadlinux-0d83f7fc83f77d1cc8395b9e851325d8cc1892e3.tar.xz
linux-0d83f7fc83f77d1cc8395b9e851325d8cc1892e3.zip
freevxfs: handle big endian HP-UX file systems
To support VxFS filesystems from HP-UX on x86 systems we need to implement byte swapping, and to keep support for Unixware filesystems it needs to be the complicated dual-endian kind ala sysvfs. To do this properly we have to split the on disk and in-core inode so that we can keep the in-core one in native endianness. All other structures are byteswapped on demand. Signed-off-by: Krzysztof Błaszkowski <kb@sysmikro.com.pl> [hch: make spare happy] Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/freevxfs/vxfs_dir.h')
-rw-r--r--fs/freevxfs/vxfs_dir.h17
1 files changed, 9 insertions, 8 deletions
diff --git a/fs/freevxfs/vxfs_dir.h b/fs/freevxfs/vxfs_dir.h
index aaf1fb098639..acc5477b3f23 100644
--- a/fs/freevxfs/vxfs_dir.h
+++ b/fs/freevxfs/vxfs_dir.h
@@ -48,9 +48,9 @@
* Linux driver for now.
*/
struct vxfs_dirblk {
- u_int16_t d_free; /* free space in dirblock */
- u_int16_t d_nhash; /* no of hash chains */
- u_int16_t d_hash[1]; /* hash chain */
+ __fs16 d_free; /* free space in dirblock */
+ __fs16 d_nhash; /* no of hash chains */
+ __fs16 d_hash[1]; /* hash chain */
};
/*
@@ -63,10 +63,10 @@ struct vxfs_dirblk {
* VxFS directory entry.
*/
struct vxfs_direct {
- vx_ino_t d_ino; /* inode number */
- u_int16_t d_reclen; /* record length */
- u_int16_t d_namelen; /* d_name length */
- u_int16_t d_hashnext; /* next hash entry */
+ __fs32 d_ino; /* inode number */
+ __fs16 d_reclen; /* record length */
+ __fs16 d_namelen; /* d_name length */
+ __fs16 d_hashnext; /* next hash entry */
char d_name[VXFS_NAMELEN]; /* name */
};
@@ -87,6 +87,7 @@ struct vxfs_direct {
/*
* VXFS_DIRBLKOV is the overhead of a specific dirblock.
*/
-#define VXFS_DIRBLKOV(dbp) ((sizeof(short) * dbp->d_nhash) + 4)
+#define VXFS_DIRBLKOV(sbi, dbp) \
+ ((sizeof(short) * fs16_to_cpu(sbi, dbp->d_nhash)) + 4)
#endif /* _VXFS_DIR_H_ */