diff options
Diffstat (limited to 'fs/xfs/xfs_rtalloc.h')
| -rw-r--r-- | fs/xfs/xfs_rtalloc.h | 79 |
1 files changed, 27 insertions, 52 deletions
diff --git a/fs/xfs/xfs_rtalloc.h b/fs/xfs/xfs_rtalloc.h index ff614c29b44..752b63d1030 100644 --- a/fs/xfs/xfs_rtalloc.h +++ b/fs/xfs/xfs_rtalloc.h @@ -18,58 +18,11 @@ #ifndef __XFS_RTALLOC_H__ #define __XFS_RTALLOC_H__ +/* kernel only definitions and functions */ + struct xfs_mount; struct xfs_trans; -/* Min and max rt extent sizes, specified in bytes */ -#define XFS_MAX_RTEXTSIZE (1024 * 1024 * 1024) /* 1GB */ -#define XFS_DFL_RTEXTSIZE (64 * 1024) /* 64kB */ -#define XFS_MIN_RTEXTSIZE (4 * 1024) /* 4kB */ - -/* - * Constants for bit manipulations. - */ -#define XFS_NBBYLOG 3 /* log2(NBBY) */ -#define XFS_WORDLOG 2 /* log2(sizeof(xfs_rtword_t)) */ -#define XFS_NBWORDLOG (XFS_NBBYLOG + XFS_WORDLOG) -#define XFS_NBWORD (1 << XFS_NBWORDLOG) -#define XFS_WORDMASK ((1 << XFS_WORDLOG) - 1) - -#define XFS_BLOCKSIZE(mp) ((mp)->m_sb.sb_blocksize) -#define XFS_BLOCKMASK(mp) ((mp)->m_blockmask) -#define XFS_BLOCKWSIZE(mp) ((mp)->m_blockwsize) -#define XFS_BLOCKWMASK(mp) ((mp)->m_blockwmask) - -/* - * Summary and bit manipulation macros. - */ -#define XFS_SUMOFFS(mp,ls,bb) ((int)((ls) * (mp)->m_sb.sb_rbmblocks + (bb))) -#define XFS_SUMOFFSTOBLOCK(mp,s) \ - (((s) * (uint)sizeof(xfs_suminfo_t)) >> (mp)->m_sb.sb_blocklog) -#define XFS_SUMPTR(mp,bp,so) \ - ((xfs_suminfo_t *)((char *)XFS_BUF_PTR(bp) + \ - (((so) * (uint)sizeof(xfs_suminfo_t)) & XFS_BLOCKMASK(mp)))) - -#define XFS_BITTOBLOCK(mp,bi) ((bi) >> (mp)->m_blkbit_log) -#define XFS_BLOCKTOBIT(mp,bb) ((bb) << (mp)->m_blkbit_log) -#define XFS_BITTOWORD(mp,bi) \ - ((int)(((bi) >> XFS_NBWORDLOG) & XFS_BLOCKWMASK(mp))) - -#define XFS_RTMIN(a,b) ((a) < (b) ? (a) : (b)) -#define XFS_RTMAX(a,b) ((a) > (b) ? (a) : (b)) - -#define XFS_RTLOBIT(w) xfs_lowbit32(w) -#define XFS_RTHIBIT(w) xfs_highbit32(w) - -#if XFS_BIG_BLKNOS -#define XFS_RTBLOCKLOG(b) xfs_highbit64(b) -#else -#define XFS_RTBLOCKLOG(b) xfs_highbit32(b) -#endif - - -#ifdef __KERNEL__ - #ifdef CONFIG_XFS_RT /* * Function prototypes for exported functions. @@ -142,6 +95,30 @@ xfs_growfs_rt( struct xfs_mount *mp, /* file system mount structure */ xfs_growfs_rt_t *in); /* user supplied growfs struct */ +/* + * From xfs_rtbitmap.c + */ +int xfs_rtbuf_get(struct xfs_mount *mp, struct xfs_trans *tp, + xfs_rtblock_t block, int issum, struct xfs_buf **bpp); +int xfs_rtcheck_range(struct xfs_mount *mp, struct xfs_trans *tp, + xfs_rtblock_t start, xfs_extlen_t len, int val, + xfs_rtblock_t *new, int *stat); +int xfs_rtfind_back(struct xfs_mount *mp, struct xfs_trans *tp, + xfs_rtblock_t start, xfs_rtblock_t limit, + xfs_rtblock_t *rtblock); +int xfs_rtfind_forw(struct xfs_mount *mp, struct xfs_trans *tp, + xfs_rtblock_t start, xfs_rtblock_t limit, + xfs_rtblock_t *rtblock); +int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp, + xfs_rtblock_t start, xfs_extlen_t len, int val); +int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log, + xfs_rtblock_t bbno, int delta, xfs_buf_t **rbpp, + xfs_fsblock_t *rsb); +int xfs_rtfree_range(struct xfs_mount *mp, struct xfs_trans *tp, + xfs_rtblock_t start, xfs_extlen_t len, + struct xfs_buf **rbpp, xfs_fsblock_t *rsb); + + #else # define xfs_rtallocate_extent(t,b,min,max,l,a,f,p,rb) (ENOSYS) # define xfs_rtfree_extent(t,b,l) (ENOSYS) @@ -154,13 +131,11 @@ xfs_rtmount_init( if (mp->m_sb.sb_rblocks == 0) return 0; - cmn_err(CE_WARN, "XFS: Not built with CONFIG_XFS_RT"); + xfs_warn(mp, "Not built with CONFIG_XFS_RT"); return ENOSYS; } # define xfs_rtmount_inodes(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (ENOSYS)) # define xfs_rtunmount_inodes(m) #endif /* CONFIG_XFS_RT */ -#endif /* __KERNEL__ */ - #endif /* __XFS_RTALLOC_H__ */ |