diff options
Diffstat (limited to 'fs/xfs/xfs_dir2_leaf.c')
| -rw-r--r-- | fs/xfs/xfs_dir2_leaf.c | 76 |
1 files changed, 30 insertions, 46 deletions
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c index 1b73c9ad646a..e7c12fa1303e 100644 --- a/fs/xfs/xfs_dir2_leaf.c +++ b/fs/xfs/xfs_dir2_leaf.c @@ -749,12 +749,11 @@ xfs_dir2_leaf_compact_x1( */ int /* error */ xfs_dir2_leaf_getdents( - xfs_trans_t *tp, /* transaction pointer */ xfs_inode_t *dp, /* incore directory inode */ - uio_t *uio, /* I/O control & vectors */ - int *eofp, /* out: reached end of dir */ - xfs_dirent_t *dbp, /* caller's buffer */ - xfs_dir2_put_t put) /* ABI formatting routine */ + void *dirent, + size_t bufsize, + xfs_off_t *offset, + filldir_t filldir) { xfs_dabuf_t *bp; /* data block buffer */ int byteoff; /* offset in current block */ @@ -763,7 +762,6 @@ xfs_dir2_leaf_getdents( xfs_dir2_data_t *data; /* data block structure */ xfs_dir2_data_entry_t *dep; /* data entry */ xfs_dir2_data_unused_t *dup; /* unused entry */ - int eof; /* reached end of directory */ int error = 0; /* error return value */ int i; /* temporary loop index */ int j; /* temporary loop index */ @@ -776,46 +774,38 @@ xfs_dir2_leaf_getdents( xfs_mount_t *mp; /* filesystem mount point */ xfs_dir2_off_t newoff; /* new curoff after new blk */ int nmap; /* mappings to ask xfs_bmapi */ - xfs_dir2_put_args_t *p; /* formatting arg bundle */ char *ptr = NULL; /* pointer to current data */ int ra_current; /* number of read-ahead blks */ int ra_index; /* *map index for read-ahead */ int ra_offset; /* map entry offset for ra */ int ra_want; /* readahead count wanted */ + xfs_ino_t ino; /* * If the offset is at or past the largest allowed value, - * give up right away, return eof. + * give up right away. */ - if (uio->uio_offset >= XFS_DIR2_MAX_DATAPTR) { - *eofp = 1; + if (*offset >= XFS_DIR2_MAX_DATAPTR) return 0; - } + mp = dp->i_mount; - /* - * Setup formatting arguments. - */ - p = kmem_alloc(sizeof(*p), KM_SLEEP); - p->dbp = dbp; - p->put = put; - p->uio = uio; + /* * Set up to bmap a number of blocks based on the caller's * buffer size, the directory block size, and the filesystem * block size. */ - map_size = - howmany(uio->uio_resid + mp->m_dirblksize, - mp->m_sb.sb_blocksize); + map_size = howmany(bufsize + mp->m_dirblksize, mp->m_sb.sb_blocksize); map = kmem_alloc(map_size * sizeof(*map), KM_SLEEP); map_valid = ra_index = ra_offset = ra_current = map_blocks = 0; bp = NULL; - eof = 1; + /* * Inside the loop we keep the main offset value as a byte offset * in the directory file. */ - curoff = xfs_dir2_dataptr_to_byte(mp, uio->uio_offset); + curoff = xfs_dir2_dataptr_to_byte(mp, *offset); + /* * Force this conversion through db so we truncate the offset * down to get the start of the data block. @@ -836,7 +826,7 @@ xfs_dir2_leaf_getdents( * take it out of the mapping. */ if (bp) { - xfs_da_brelse(tp, bp); + xfs_da_brelse(NULL, bp); bp = NULL; map_blocks -= mp->m_dirblkfsbs; /* @@ -862,8 +852,9 @@ xfs_dir2_leaf_getdents( /* * Recalculate the readahead blocks wanted. */ - ra_want = howmany(uio->uio_resid + mp->m_dirblksize, + ra_want = howmany(bufsize + mp->m_dirblksize, mp->m_sb.sb_blocksize) - 1; + /* * If we don't have as many as we want, and we haven't * run out of data blocks, get some more mappings. @@ -876,7 +867,7 @@ xfs_dir2_leaf_getdents( * we already have in the table. */ nmap = map_size - map_valid; - error = xfs_bmapi(tp, dp, + error = xfs_bmapi(NULL, dp, map_off, xfs_dir2_byte_to_da(mp, XFS_DIR2_LEAF_OFFSET) - map_off, @@ -939,7 +930,7 @@ xfs_dir2_leaf_getdents( * mapping. */ curdb = xfs_dir2_da_to_db(mp, map->br_startoff); - error = xfs_da_read_buf(tp, dp, map->br_startoff, + error = xfs_da_read_buf(NULL, dp, map->br_startoff, map->br_blockcount >= mp->m_dirblkfsbs ? XFS_FSB_TO_DADDR(mp, map->br_startblock) : -1, @@ -982,7 +973,7 @@ xfs_dir2_leaf_getdents( * is a very rare case. */ else if (i > ra_current) { - (void)xfs_da_reada_buf(tp, dp, + (void)xfs_da_reada_buf(NULL, dp, map[ra_index].br_startoff + ra_offset, XFS_DATA_FORK); ra_current = i; @@ -1089,46 +1080,39 @@ xfs_dir2_leaf_getdents( */ dep = (xfs_dir2_data_entry_t *)ptr; - p->namelen = dep->namelen; - - length = xfs_dir2_data_entsize(p->namelen); - - p->cook = xfs_dir2_byte_to_dataptr(mp, curoff + length); + length = xfs_dir2_data_entsize(dep->namelen); - p->ino = be64_to_cpu(dep->inumber); + ino = be64_to_cpu(dep->inumber); #if XFS_BIG_INUMS - p->ino += mp->m_inoadd; + ino += mp->m_inoadd; #endif - p->name = (char *)dep->name; - - error = p->put(p); /* * Won't fit. Return to caller. */ - if (!p->done) { - eof = 0; + if (filldir(dirent, dep->name, dep->namelen, + xfs_dir2_byte_to_dataptr(mp, curoff + length), + ino, DT_UNKNOWN)) break; - } + /* * Advance to next entry in the block. */ ptr += length; curoff += length; + bufsize -= length; } /* * All done. Set output offset value to current offset. */ - *eofp = eof; if (curoff > xfs_dir2_dataptr_to_byte(mp, XFS_DIR2_MAX_DATAPTR)) - uio->uio_offset = XFS_DIR2_MAX_DATAPTR; + *offset = XFS_DIR2_MAX_DATAPTR; else - uio->uio_offset = xfs_dir2_byte_to_dataptr(mp, curoff); + *offset = xfs_dir2_byte_to_dataptr(mp, curoff); kmem_free(map, map_size * sizeof(*map)); - kmem_free(p, sizeof(*p)); if (bp) - xfs_da_brelse(tp, bp); + xfs_da_brelse(NULL, bp); return error; } |