X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=fs%2Fxfs%2Fxfs_attr_leaf.h;h=040f732ce1e22a22e513bd3afca283c1d432e167;hb=26808d3f10b1213bbb6e27d441be40e20ab84611;hp=f6143ff251a019e90ec01673bcf69d8a835d3c1a;hpb=7211bb9b64f17b23834d91fc3d0c1d78671ee9a8;p=powerpc.git diff --git a/fs/xfs/xfs_attr_leaf.h b/fs/xfs/xfs_attr_leaf.h index f6143ff251..040f732ce1 100644 --- a/fs/xfs/xfs_attr_leaf.h +++ b/fs/xfs/xfs_attr_leaf.h @@ -63,7 +63,7 @@ struct xfs_trans; * the leaf_entry. The namespaces are independent only because we also look * at the namespace bit when we are looking for a matching attribute name. * - * We also store a "incomplete" bit in the leaf_entry. It shows that an + * We also store an "incomplete" bit in the leaf_entry. It shows that an * attribute is in the middle of being created and should not be shown to * the user if we crash during the time that the bit is set. We clear the * bit when we have finished setting up the attribute. We do this because @@ -72,42 +72,48 @@ struct xfs_trans; */ #define XFS_ATTR_LEAF_MAPSIZE 3 /* how many freespace slots */ +typedef struct xfs_attr_leaf_map { /* RLE map of free bytes */ + __be16 base; /* base of free region */ + __be16 size; /* length of free region */ +} xfs_attr_leaf_map_t; + +typedef struct xfs_attr_leaf_hdr { /* constant-structure header block */ + xfs_da_blkinfo_t info; /* block type, links, etc. */ + __be16 count; /* count of active leaf_entry's */ + __be16 usedbytes; /* num bytes of names/values stored */ + __be16 firstused; /* first used byte in name area */ + __u8 holes; /* != 0 if blk needs compaction */ + __u8 pad1; + xfs_attr_leaf_map_t freemap[XFS_ATTR_LEAF_MAPSIZE]; + /* N largest free regions */ +} xfs_attr_leaf_hdr_t; + +typedef struct xfs_attr_leaf_entry { /* sorted on key, not name */ + __be32 hashval; /* hash value of name */ + __be16 nameidx; /* index into buffer of name/value */ + __u8 flags; /* LOCAL/ROOT/SECURE/INCOMPLETE flag */ + __u8 pad2; /* unused pad byte */ +} xfs_attr_leaf_entry_t; + +typedef struct xfs_attr_leaf_name_local { + __be16 valuelen; /* number of bytes in value */ + __u8 namelen; /* length of name bytes */ + __u8 nameval[1]; /* name/value bytes */ +} xfs_attr_leaf_name_local_t; + +typedef struct xfs_attr_leaf_name_remote { + __be32 valueblk; /* block number of value bytes */ + __be32 valuelen; /* number of bytes in value */ + __u8 namelen; /* length of name bytes */ + __u8 name[1]; /* name bytes */ +} xfs_attr_leaf_name_remote_t; + typedef struct xfs_attr_leafblock { - struct xfs_attr_leaf_hdr { /* constant-structure header block */ - xfs_da_blkinfo_t info; /* block type, links, etc. */ - __uint16_t count; /* count of active leaf_entry's */ - __uint16_t usedbytes; /* num bytes of names/values stored */ - __uint16_t firstused; /* first used byte in name area */ - __uint8_t holes; /* != 0 if blk needs compaction */ - __uint8_t pad1; - struct xfs_attr_leaf_map { /* RLE map of free bytes */ - __uint16_t base; /* base of free region */ - __uint16_t size; /* length of free region */ - } freemap[XFS_ATTR_LEAF_MAPSIZE]; /* N largest free regions */ - } hdr; - struct xfs_attr_leaf_entry { /* sorted on key, not name */ - xfs_dahash_t hashval; /* hash value of name */ - __uint16_t nameidx; /* index into buffer of name/value */ - __uint8_t flags; /* LOCAL/ROOT/SECURE/INCOMPLETE flag */ - __uint8_t pad2; /* unused pad byte */ - } entries[1]; /* variable sized array */ - struct xfs_attr_leaf_name_local { - __uint16_t valuelen; /* number of bytes in value */ - __uint8_t namelen; /* length of name bytes */ - __uint8_t nameval[1]; /* name/value bytes */ - } namelist; /* grows from bottom of buf */ - struct xfs_attr_leaf_name_remote { - xfs_dablk_t valueblk; /* block number of value bytes */ - __uint32_t valuelen; /* number of bytes in value */ - __uint8_t namelen; /* length of name bytes */ - __uint8_t name[1]; /* name bytes */ - } valuelist; /* grows from bottom of buf */ + xfs_attr_leaf_hdr_t hdr; /* constant-structure header block */ + xfs_attr_leaf_entry_t entries[1]; /* sorted on key, not name */ + xfs_attr_leaf_name_local_t namelist; /* grows from bottom of buf */ + xfs_attr_leaf_name_remote_t valuelist; /* grows from bottom of buf */ } xfs_attr_leafblock_t; -typedef struct xfs_attr_leaf_hdr xfs_attr_leaf_hdr_t; -typedef struct xfs_attr_leaf_map xfs_attr_leaf_map_t; -typedef struct xfs_attr_leaf_entry xfs_attr_leaf_entry_t; -typedef struct xfs_attr_leaf_name_local xfs_attr_leaf_name_local_t; -typedef struct xfs_attr_leaf_name_remote xfs_attr_leaf_name_remote_t; /* * Flags used in the leaf_entry[i].flags field. @@ -123,6 +129,19 @@ typedef struct xfs_attr_leaf_name_remote xfs_attr_leaf_name_remote_t; #define XFS_ATTR_SECURE (1 << XFS_ATTR_SECURE_BIT) #define XFS_ATTR_INCOMPLETE (1 << XFS_ATTR_INCOMPLETE_BIT) +/* + * Conversion macros for converting namespace bits from argument flags + * to ondisk flags. + */ +#define XFS_ATTR_NSP_ARGS_MASK (ATTR_ROOT | ATTR_SECURE) +#define XFS_ATTR_NSP_ONDISK_MASK (XFS_ATTR_ROOT | XFS_ATTR_SECURE) +#define XFS_ATTR_NSP_ONDISK(flags) ((flags) & XFS_ATTR_NSP_ONDISK_MASK) +#define XFS_ATTR_NSP_ARGS(flags) ((flags) & XFS_ATTR_NSP_ARGS_MASK) +#define XFS_ATTR_NSP_ARGS_TO_ONDISK(x) (((x) & ATTR_ROOT ? XFS_ATTR_ROOT : 0) |\ + ((x) & ATTR_SECURE ? XFS_ATTR_SECURE : 0)) +#define XFS_ATTR_NSP_ONDISK_TO_ARGS(x) (((x) & XFS_ATTR_ROOT ? ATTR_ROOT : 0) |\ + ((x) & XFS_ATTR_SECURE ? ATTR_SECURE : 0)) + /* * Alignment for namelist and valuelist entries (since they are mixed * there can be only one alignment value) @@ -137,8 +156,8 @@ typedef struct xfs_attr_leaf_name_remote xfs_attr_leaf_name_remote_t; static inline xfs_attr_leaf_name_remote_t * xfs_attr_leaf_name_remote(xfs_attr_leafblock_t *leafp, int idx) { - return (xfs_attr_leaf_name_remote_t *) &((char *) - (leafp))[INT_GET((leafp)->entries[idx].nameidx, ARCH_CONVERT)]; + return (xfs_attr_leaf_name_remote_t *) + &((char *)leafp)[be16_to_cpu(leafp->entries[idx].nameidx)]; } #define XFS_ATTR_LEAF_NAME_LOCAL(leafp,idx) \ @@ -146,15 +165,15 @@ xfs_attr_leaf_name_remote(xfs_attr_leafblock_t *leafp, int idx) static inline xfs_attr_leaf_name_local_t * xfs_attr_leaf_name_local(xfs_attr_leafblock_t *leafp, int idx) { - return (xfs_attr_leaf_name_local_t *) &((char *) - (leafp))[INT_GET((leafp)->entries[idx].nameidx, ARCH_CONVERT)]; + return (xfs_attr_leaf_name_local_t *) + &((char *)leafp)[be16_to_cpu(leafp->entries[idx].nameidx)]; } -#define XFS_ATTR_LEAF_NAME(leafp,idx) xfs_attr_leaf_name(leafp,idx) +#define XFS_ATTR_LEAF_NAME(leafp,idx) \ + xfs_attr_leaf_name(leafp,idx) static inline char *xfs_attr_leaf_name(xfs_attr_leafblock_t *leafp, int idx) { - return (&((char *) - (leafp))[INT_GET((leafp)->entries[idx].nameidx, ARCH_CONVERT)]); + return &((char *)leafp)[be16_to_cpu(leafp->entries[idx].nameidx)]; } /* @@ -190,16 +209,26 @@ static inline int xfs_attr_leaf_entsize_local_max(int bsize) * Structure used to pass context around among the routines. *========================================================================*/ + +struct xfs_attr_list_context; + +typedef int (*put_listent_func_t)(struct xfs_attr_list_context *, struct attrnames *, + char *, int, int, char *); + typedef struct xfs_attr_list_context { - struct xfs_inode *dp; /* inode */ - struct attrlist_cursor_kern *cursor;/* position in list */ - struct attrlist *alist; /* output buffer */ - int count; /* num used entries */ - int dupcnt; /* count dup hashvals seen */ - int bufsize;/* total buffer size */ - int firstu; /* first used byte in buffer */ - int flags; /* from VOP call */ - int resynch;/* T/F: resynch with cursor */ + struct xfs_inode *dp; /* inode */ + struct attrlist_cursor_kern *cursor; /* position in list */ + struct attrlist *alist; /* output buffer */ + int seen_enough; /* T/F: seen enough of list? */ + int count; /* num used entries */ + int dupcnt; /* count dup hashvals seen */ + int bufsize; /* total buffer size */ + int firstu; /* first used byte in buffer */ + int flags; /* from VOP call */ + int resynch; /* T/F: resynch with cursor */ + int put_value; /* T/F: need value for listent */ + put_listent_func_t put_listent; /* list output fmt function */ + int index; /* index into output buffer */ } xfs_attr_list_context_t; /*