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author | Dave Chinner <dchinner@redhat.com> | 2013-08-12 20:49:42 +1000 |
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committer | Ben Myers <bpm@sgi.com> | 2013-08-12 16:45:17 -0500 |
commit | 6898811459ff523ed256c07d1d5c54ba915d51ac (patch) | |
tree | 3079fecb7b8420aef10673d4d6b08d69645feacc /fs/xfs/xfs_bmap.h | |
parent | ff55068c2010f39bcd899ca14b0a3d401d14da54 (diff) | |
download | linux-6898811459ff523ed256c07d1d5c54ba915d51ac.tar.gz linux-6898811459ff523ed256c07d1d5c54ba915d51ac.tar.bz2 linux-6898811459ff523ed256c07d1d5c54ba915d51ac.zip |
xfs: create xfs_bmap_util.[ch]
There is a bunch of code in xfs_bmap.c that is kernel specific and
not shared with userspace. To minimise the difference between the
kernel and userspace code, shift this unshared code to
xfs_bmap_util.c, and the declarations to xfs_bmap_util.h.
The biggest issue here is xfs_bmap_finish() - userspace has it's own
definition of this function, and so we need to move it out of
xfs_bmap.[ch]. This means several other files need to include
xfs_bmap_util.h as well.
It also introduces and interesting dance for the stack switching
code in xfs_bmapi_allocate(). The stack switching/workqueue code is
actually moved to xfs_bmap_util.c, so that userspace can simply use
a #define in a header file to connect the dots without needing to
know about the stack switch code at all.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_bmap.h')
-rw-r--r-- | fs/xfs/xfs_bmap.h | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h index 314dca1775dc..8b2fe9785b3a 100644 --- a/fs/xfs/xfs_bmap.h +++ b/fs/xfs/xfs_bmap.h @@ -108,43 +108,6 @@ static inline void xfs_bmap_init(xfs_bmap_free_t *flp, xfs_fsblock_t *fbp) } /* - * Argument structure for xfs_bmap_alloc. - */ -typedef struct xfs_bmalloca { - xfs_fsblock_t *firstblock; /* i/o first block allocated */ - struct xfs_bmap_free *flist; /* bmap freelist */ - struct xfs_trans *tp; /* transaction pointer */ - struct xfs_inode *ip; /* incore inode pointer */ - struct xfs_bmbt_irec prev; /* extent before the new one */ - struct xfs_bmbt_irec got; /* extent after, or delayed */ - - xfs_fileoff_t offset; /* offset in file filling in */ - xfs_extlen_t length; /* i/o length asked/allocated */ - xfs_fsblock_t blkno; /* starting block of new extent */ - - struct xfs_btree_cur *cur; /* btree cursor */ - xfs_extnum_t idx; /* current extent index */ - int nallocs;/* number of extents alloc'd */ - int logflags;/* flags for transaction logging */ - - xfs_extlen_t total; /* total blocks needed for xaction */ - xfs_extlen_t minlen; /* minimum allocation size (blocks) */ - xfs_extlen_t minleft; /* amount must be left after alloc */ - char eof; /* set if allocating past last extent */ - char wasdel; /* replacing a delayed allocation */ - char userdata;/* set if is user data */ - char aeof; /* allocated space at eof */ - char conv; /* overwriting unwritten extents */ - char stack_switch; - int flags; -#ifdef __KERNEL__ - struct completion *done; - struct work_struct work; - int result; -#endif /* __KERNEL__ */ -} xfs_bmalloca_t; - -/* * Flags for xfs_bmap_add_extent*. */ #define BMAP_LEFT_CONTIG (1 << 0) @@ -207,23 +170,4 @@ int xfs_check_nostate_extents(struct xfs_ifork *ifp, xfs_extnum_t idx, xfs_extnum_t num); uint xfs_default_attroffset(struct xfs_inode *ip); -#ifdef __KERNEL__ -/* bmap to userspace formatter - copy to user & advance pointer */ -typedef int (*xfs_bmap_format_t)(void **, struct getbmapx *, int *); - -int xfs_bmap_finish(struct xfs_trans **tp, struct xfs_bmap_free *flist, - int *committed); -int xfs_getbmap(struct xfs_inode *ip, struct getbmapx *bmv, - xfs_bmap_format_t formatter, void *arg); -int xfs_bmap_eof(struct xfs_inode *ip, xfs_fileoff_t endoff, - int whichfork, int *eof); -int xfs_bmap_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip, - int whichfork, int *count); -int xfs_bmap_punch_delalloc_range(struct xfs_inode *ip, - xfs_fileoff_t start_fsb, xfs_fileoff_t length); - -xfs_daddr_t xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb); - -#endif /* __KERNEL__ */ - #endif /* __XFS_BMAP_H__ */ |