File: [Development] / xfs-linux / xfs_fsops.h (download)
Revision 1.11, Thu Feb 4 01:28:30 1999 UTC (18 years, 8 months ago) by doucette
Branch: MAIN
Changes since 1.10: +1 -1
lines
Change maximum log size from 32kblocks to 64kblocks.
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#ifndef _FS_XFS_GROW_H
#define _FS_XFS_GROW_H
#ident "$Revision$"
/*
* File system growth interfaces
*/
#define XFS_FS_GEOMETRY_V1 0 /* get filesystem geometry pre-irix6.5*/
#define XFS_GROWFS_DATA 1 /* grow data area */
#define XFS_GROWFS_LOG 2 /* grow log, new log is internal */
#define XFS_GROWFS_RT 3 /* grow realtime area */
#define XFS_FS_COUNTS 4 /* get filesystem dynamic counts */
#define XFS_SET_RESBLKS 5 /* set reserved block count */
#define XFS_GET_RESBLKS 6 /* get reserved block counts */
#define XFS_FS_GEOMETRY_V2 7 /* get filesystem geometry irix6.5 */
#define XFS_FS_GEOMETRY 8 /* get filesystem geometry>=irix6.5.3 */
#define XFS_FSOPS_COUNT 9 /* count of operations */
/*
* Minimum and maximum sizes need for growth checks
*/
#define XFS_MIN_LOG_BLOCKS 512
#define XFS_MIN_LOG_BYTES (256 * 1024)
#define XFS_MIN_AG_BLOCKS 64
#define XFS_MAX_LOG_BLOCKS (64 * 1024)
#define XFS_MAX_LOG_BYTES (128 * 1024 * 1024)
/*
* Input and output structures
*/
/*
* Output for XFS_FS_GEOMETRY
*/
typedef struct xfs_fsop_geom
{
__uint32_t blocksize; /* filesystem (data) block size */
__uint32_t rtextsize; /* realtime extent size */
__uint32_t agblocks; /* fsblocks in an allocation group */
__uint32_t agcount; /* number of allocation groups */
__uint32_t logblocks; /* fsblocks in the log */
__uint32_t sectsize; /* (data) sector size, bytes */
__uint32_t inodesize; /* inode size in bytes */
__uint32_t imaxpct; /* max allowed space for inodes (%) */
__uint64_t datablocks; /* fsblocks in the data subvolume */
__uint64_t rtblocks; /* fsblocks in the realtime subvolume */
__uint64_t rtextents; /* rt extents in the realtime subvol */
__uint64_t logstart; /* starting fsblock of the log */
uuid_t uuid; /* unique id of the filesystem */
__uint32_t sunit; /* stripe unit, fsblocks */
__uint32_t swidth; /* stripe width, fsblocks */
__int32_t version; /* structure version */
__uint32_t flags; /* superblock version flags */
__uint32_t logsectsize; /* log sector size, bytes */
__uint32_t rtsectsize; /* realtime sector size, bytes */
__uint32_t dirblocksize; /* directory block size, bytes */
} xfs_fsop_geom_t;
#define XFS_FSOP_GEOM_VERSION 0
#define XFS_FSOP_GEOM_FLAGS_ATTR 0x01 /* attributes in use */
#define XFS_FSOP_GEOM_FLAGS_NLINK 0x02 /* 32-bit nlink values */
#define XFS_FSOP_GEOM_FLAGS_QUOTA 0x04 /* quota accounting enabled */
#define XFS_FSOP_GEOM_FLAGS_IALIGN 0x08 /* inode alignment */
#define XFS_FSOP_GEOM_FLAGS_DALIGN 0x10 /* large data alignment */
#define XFS_FSOP_GEOM_FLAGS_SHARED 0x20 /* read-only shared */
#define XFS_FSOP_GEOM_FLAGS_EXTFLG 0x40 /* special extent flag */
#define XFS_FSOP_GEOM_FLAGS_DIRV2 0x80 /* directory version 2 */
/*
* This version has two new fields sunit and swidth.
* Added in irix6.5
*/
typedef struct xfs_fsop_geom_v2
{
__uint32_t blocksize; /* filesystem (data) block size */
__uint32_t rtextsize; /* realtime extent size */
__uint32_t agblocks; /* fsblocks in an allocation group */
__uint32_t agcount; /* number of allocation groups */
__uint32_t logblocks; /* fsblocks in the log */
__uint32_t sectsize; /* (data) sector size, bytes */
__uint32_t inodesize; /* inode size in bytes */
__uint32_t imaxpct; /* max allowed space for inodes (%) */
__uint64_t datablocks; /* fsblocks in the data subvolume */
__uint64_t rtblocks; /* fsblocks in the realtime subvolume */
__uint64_t rtextents; /* rt extents in the realtime subvol */
__uint64_t logstart; /* starting fsblock of the log */
uuid_t uuid; /* unique id of the filesystem */
__uint32_t sunit; /* stripe unit, fsblocks */
__uint32_t swidth; /* stripe width, fsblocks */
} xfs_fsop_geom_v2_t;
/*
* This version of xfs_fsop_geom existed prior to Irix 6.5
*/
typedef struct xfs_fsop_geom_v1
{
__uint32_t blocksize; /* filesystem (data) block size */
__uint32_t rtextsize; /* realtime extent size */
__uint32_t agblocks; /* fsblocks in an allocation group */
__uint32_t agcount; /* number of allocation groups */
__uint32_t logblocks; /* fsblocks in the log */
__uint32_t sectsize; /* (data) sector size, bytes */
__uint32_t inodesize; /* inode size in bytes */
__uint32_t imaxpct; /* max allowed space for inodes (%) */
__uint64_t datablocks; /* fsblocks in the data subvolume */
__uint64_t rtblocks; /* fsblocks in the realtime subvolume */
__uint64_t rtextents; /* rt extents in the realtime subvol */
__uint64_t logstart; /* starting fsblock of the log */
uuid_t uuid; /* unique id of the filesystem */
} xfs_fsop_geom_v1_t;
/* Output for XFS_FS_COUNTS */
typedef struct xfs_fsop_counts
{
__uint64_t freedata; /* free data section blocks */
__uint64_t freertx; /* free rt extents */
__uint64_t freeino; /* free inodes */
__uint64_t allocino; /* total allocated inodes */
} xfs_fsop_counts_t;
/* Output for XFS_GET_RESBLKS */
typedef struct xfs_fsop_get_resblks
{
__uint64_t resblks;
__uint64_t resblks_avail;
} xfs_fsops_getblks_t;
/* Input for growfs data op */
typedef struct xfs_growfs_data
{
__uint64_t newblocks; /* new data subvol size, fsblocks */
__uint32_t imaxpct; /* new inode space percentage limit */
} xfs_growfs_data_t;
/* Input for growfs log op */
typedef struct xfs_growfs_log
{
__uint32_t newblocks; /* new log size, fsblocks */
__int32_t isint; /* 1 if new log is internal */
} xfs_growfs_log_t;
/* Input for growfs rt op */
typedef struct xfs_growfs_rt
{
__uint64_t newblocks; /* new realtime size, fsblocks */
__uint32_t extsize; /* new realtime extent size, fsblocks */
} xfs_growfs_rt_t;
#ifdef _KERNEL
int /* error status */
xfs_fsoperations(
int fd, /* file descriptor for fs */
int opcode, /* operation code */
void *in, /* input structure */
void *out); /* output structure */
#endif /* _KERNEL */
#endif /* _FS_XFS_GROW_H */