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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-13 13:28:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-13 13:28:32 -0700
commit0b381a286e5d748b1fd80095d3dd52326819742f (patch)
treed72fca56123520b9c78661137f8a02b6ad26f95b /include/uapi/linux/efs_fs_sb.h
parent034b5eeb6bc783e7f60e11299154556e65699e7a (diff)
parent5921e6f8809b1616932ca4afd40fe449faa8fd88 (diff)
downloadtalos-op-linux-0b381a286e5d748b1fd80095d3dd52326819742f.tar.gz
talos-op-linux-0b381a286e5d748b1fd80095d3dd52326819742f.zip
Merge tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers
Pull UAPI disintegration for include/linux/{,byteorder/}*.h from David Howells: "The patches contained herein do the following: (1) Remove kernel-only stuff in linux/ppp-comp.h from the UAPI. I checked this with Paul Mackerras before I created the patch and he suggested some extra bits to unexport. (2) Remove linux/blk_types.h entirely from the UAPI as none of it is userspace applicable, and remove from the UAPI that part of linux/fs.h that was the reason for linux/blk_types.h being exported in the first place. I discussed this with Jens Axboe before creating the patch. (3) The big patch of the series to disintegrate include/linux/*.h as a unit. This could be split up, though there would be collisions in moving stuff between the two Kbuild files when the parts are merged as that file is sorted alphabetically rather than being grouped by subsystem. Of this set of headers, 17 files have changed in the UAPI exported region since the 4th and only 8 since the 9th so there isn't much change in this area - as one might expect. It should be pretty obvious and straightforward if it does come to fixing up: stuff in __KERNEL__ guards stays where it is and stuff outside moves to the same file in the include/uapi/linux/ directory. If a new file appears then things get a bit more complicated as the "headers +=" line has to move to include/uapi/linux/Kbuild. Only one new file has appeared since the 9th and I judge this type of event relatively unlikely. (4) A patch to disintegrate include/linux/byteorder/*.h as a unit. Signed-off-by: David Howells <dhowells@redhat.com>" * tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: (Scripted) Disintegrate include/linux/byteorder UAPI: (Scripted) Disintegrate include/linux UAPI: Unexport linux/blk_types.h UAPI: Unexport part of linux/ppp-comp.h
Diffstat (limited to 'include/uapi/linux/efs_fs_sb.h')
-rw-r--r--include/uapi/linux/efs_fs_sb.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/include/uapi/linux/efs_fs_sb.h b/include/uapi/linux/efs_fs_sb.h
new file mode 100644
index 000000000000..a01be90c58cc
--- /dev/null
+++ b/include/uapi/linux/efs_fs_sb.h
@@ -0,0 +1,62 @@
+/*
+ * efs_fs_sb.h
+ *
+ * Copyright (c) 1999 Al Smith
+ *
+ * Portions derived from IRIX header files (c) 1988 Silicon Graphics
+ */
+
+#ifndef __EFS_FS_SB_H__
+#define __EFS_FS_SB_H__
+
+#include <linux/types.h>
+#include <linux/magic.h>
+
+/* EFS superblock magic numbers */
+#define EFS_MAGIC 0x072959
+#define EFS_NEWMAGIC 0x07295a
+
+#define IS_EFS_MAGIC(x) ((x == EFS_MAGIC) || (x == EFS_NEWMAGIC))
+
+#define EFS_SUPER 1
+#define EFS_ROOTINODE 2
+
+/* efs superblock on disk */
+struct efs_super {
+ __be32 fs_size; /* size of filesystem, in sectors */
+ __be32 fs_firstcg; /* bb offset to first cg */
+ __be32 fs_cgfsize; /* size of cylinder group in bb's */
+ __be16 fs_cgisize; /* bb's of inodes per cylinder group */
+ __be16 fs_sectors; /* sectors per track */
+ __be16 fs_heads; /* heads per cylinder */
+ __be16 fs_ncg; /* # of cylinder groups in filesystem */
+ __be16 fs_dirty; /* fs needs to be fsck'd */
+ __be32 fs_time; /* last super-block update */
+ __be32 fs_magic; /* magic number */
+ char fs_fname[6]; /* file system name */
+ char fs_fpack[6]; /* file system pack name */
+ __be32 fs_bmsize; /* size of bitmap in bytes */
+ __be32 fs_tfree; /* total free data blocks */
+ __be32 fs_tinode; /* total free inodes */
+ __be32 fs_bmblock; /* bitmap location. */
+ __be32 fs_replsb; /* Location of replicated superblock. */
+ __be32 fs_lastialloc; /* last allocated inode */
+ char fs_spare[20]; /* space for expansion - MUST BE ZERO */
+ __be32 fs_checksum; /* checksum of volume portion of fs */
+};
+
+/* efs superblock information in memory */
+struct efs_sb_info {
+ __u32 fs_magic; /* superblock magic number */
+ __u32 fs_start; /* first block of filesystem */
+ __u32 first_block; /* first data block in filesystem */
+ __u32 total_blocks; /* total number of blocks in filesystem */
+ __u32 group_size; /* # of blocks a group consists of */
+ __u32 data_free; /* # of free data blocks */
+ __u32 inode_free; /* # of free inodes */
+ __u16 inode_blocks; /* # of blocks used for inodes in every grp */
+ __u16 total_groups; /* # of groups */
+};
+
+#endif /* __EFS_FS_SB_H__ */
+
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