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* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* Further, this software is distributed without any warranty that it is
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* free of the rightful claim of any third person regarding infringement
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* or the like. Any license provided herein, whether implied or
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* otherwise, applies only to this software file. Patent licenses, if
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* any, provided herein do not apply to combinations of this program with
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* other software, or any other product whatsoever.
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston MA 02111-1307, USA.
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* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
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* Mountain View, CA 94043, or:
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* For further information regarding this notice, see:
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* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
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typedef struct fs_geometry {
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* these types should match the superblock types
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__uint32_t sb_blocksize; /* blocksize (bytes) */
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xfs_drfsbno_t sb_dblocks; /* # data blocks */
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xfs_drfsbno_t sb_rblocks; /* # realtime blocks */
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xfs_drtbno_t sb_rextents; /* # realtime extents */
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uuid_t sb_uuid; /* fs uuid */
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xfs_dfsbno_t sb_logstart; /* starting log block # */
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xfs_agblock_t sb_rextsize; /* realtime extent size (blocks )*/
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xfs_agblock_t sb_agblocks; /* # of blocks per ag */
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xfs_agnumber_t sb_agcount; /* # of ags */
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xfs_extlen_t sb_rbmblocks; /* # of rt bitmap blocks */
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xfs_extlen_t sb_logblocks; /* # of log blocks */
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__uint16_t sb_sectsize; /* volume sector size (bytes) */
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__uint16_t sb_inodesize; /* inode size (bytes) */
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__uint8_t sb_imax_pct; /* max % of fs for inode space */
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* these don't have to match the superblock types but are placed
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* before sb_shared_vn because these values don't have to be
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* checked manually. These variables will be set only on
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* filesystems with dependably good (fully initialized)
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* secondary superblock sectors, will be stamped in all
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* superblocks at mkfs time, and are features that cannot
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* be downgraded unless all superblocks in the filesystem
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int sb_extflgbit; /* extent flag feature bit set */
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* fields after this point have to be checked manually in compare_sb()
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__uint8_t sb_shared_vn; /* shared version number */
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xfs_extlen_t sb_inoalignmt; /* inode chunk alignment, fsblocks */
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__uint32_t sb_unit; /* stripe or raid unit */
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__uint32_t sb_width; /* stripe or width unit */
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* these don't have to match, they track superblock properties
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* that could have been upgraded and/or downgraded during
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* run-time so that the primary superblock has them but the
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* Plus, they have associated data fields whose data fields may
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* be corrupt in cases where the filesystem was made on a
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* pre-6.5 campus alpha mkfs and the feature was enabled on
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* the filesystem later.
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int sb_ialignbit; /* sb has inode alignment bit set */
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int sb_salignbit; /* sb has stripe alignment bit set */
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int sb_sharedbit; /* sb has inode alignment bit set */
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int sb_fully_zeroed; /* has zeroed secondary sb sectors */
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typedef struct fs_geo_list {
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struct fs_geo_list *next;
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* fields for sb_last_nonzero
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#define XR_SB_COUNTERS 0x0001
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#define XR_SB_INOALIGN 0x0002
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#define XR_SB_SALIGN 0x0004
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* what got modified by verify_set_* routines
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#define XR_AG_AGF 0x2
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#define XR_AG_AGI 0x4
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#define XR_AG_SB_SEC 0x8
added
removed
repair/agheader.h
