X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=fs%2Fxfs%2Fxfs_dir2.c;h=b0f1ee8fcb90abb776a8dbd53f3664d4df189fe3;hb=9a119c056dc2a9970901954a6d561d50a95e528d;hp=8edbe1adb95ba64b1ae75e135a9828ca43a3b0e8;hpb=816724e65c72a90a44fbad0ef0b59b186c85fa90;p=linux-2.6-omap-h63xx.git diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c index 8edbe1adb95..b0f1ee8fcb9 100644 --- a/fs/xfs/xfs_dir2.c +++ b/fs/xfs/xfs_dir2.c @@ -43,8 +43,6 @@ #include "xfs_dir2_trace.h" #include "xfs_error.h" -static int xfs_dir2_put_dirent64_direct(xfs_dir2_put_args_t *pa); -static int xfs_dir2_put_dirent64_uio(xfs_dir2_put_args_t *pa); void xfs_dir_mount( @@ -55,9 +53,9 @@ xfs_dir_mount( XFS_MAX_BLOCKSIZE); mp->m_dirblksize = 1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog); mp->m_dirblkfsbs = 1 << mp->m_sb.sb_dirblklog; - mp->m_dirdatablk = XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_DATA_FIRSTDB(mp)); - mp->m_dirleafblk = XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_LEAF_FIRSTDB(mp)); - mp->m_dirfreeblk = XFS_DIR2_DB_TO_DA(mp, XFS_DIR2_FREE_FIRSTDB(mp)); + mp->m_dirdatablk = xfs_dir2_db_to_da(mp, XFS_DIR2_DATA_FIRSTDB(mp)); + mp->m_dirleafblk = xfs_dir2_db_to_da(mp, XFS_DIR2_LEAF_FIRSTDB(mp)); + mp->m_dirfreeblk = xfs_dir2_db_to_da(mp, XFS_DIR2_FREE_FIRSTDB(mp)); mp->m_attr_node_ents = (mp->m_sb.sb_blocksize - (uint)sizeof(xfs_da_node_hdr_t)) / (uint)sizeof(xfs_da_node_entry_t); @@ -293,47 +291,33 @@ xfs_dir_removename( * Read a directory. */ int -xfs_dir_getdents( - xfs_trans_t *tp, +xfs_readdir( xfs_inode_t *dp, - uio_t *uio, /* caller's buffer control */ - int *eofp) /* out: eof reached */ + void *dirent, + size_t bufsize, + xfs_off_t *offset, + filldir_t filldir) { - int alignment; /* alignment required for ABI */ - xfs_dirent_t *dbp; /* malloc'ed buffer */ - xfs_dir2_put_t put; /* entry formatting routine */ int rval; /* return value */ int v; /* type-checking value */ + vn_trace_entry(dp, __FUNCTION__, (inst_t *)__return_address); + + if (XFS_FORCED_SHUTDOWN(dp->i_mount)) + return XFS_ERROR(EIO); + ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); XFS_STATS_INC(xs_dir_getdents); - /* - * If our caller has given us a single contiguous aligned memory buffer, - * just work directly within that buffer. If it's in user memory, - * lock it down first. - */ - alignment = sizeof(xfs_off_t) - 1; - if ((uio->uio_iovcnt == 1) && - (((__psint_t)uio->uio_iov[0].iov_base & alignment) == 0) && - ((uio->uio_iov[0].iov_len & alignment) == 0)) { - dbp = NULL; - put = xfs_dir2_put_dirent64_direct; - } else { - dbp = kmem_alloc(sizeof(*dbp) + MAXNAMELEN, KM_SLEEP); - put = xfs_dir2_put_dirent64_uio; - } - *eofp = 0; if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) - rval = xfs_dir2_sf_getdents(dp, uio, eofp, dbp, put); - else if ((rval = xfs_dir2_isblock(tp, dp, &v))) + rval = xfs_dir2_sf_getdents(dp, dirent, offset, filldir); + else if ((rval = xfs_dir2_isblock(NULL, dp, &v))) ; else if (v) - rval = xfs_dir2_block_getdents(tp, dp, uio, eofp, dbp, put); + rval = xfs_dir2_block_getdents(dp, dirent, offset, filldir); else - rval = xfs_dir2_leaf_getdents(tp, dp, uio, eofp, dbp, put); - if (dbp != NULL) - kmem_free(dbp, sizeof(*dbp) + MAXNAMELEN); + rval = xfs_dir2_leaf_getdents(dp, dirent, bufsize, offset, + filldir); return rval; } @@ -554,7 +538,7 @@ xfs_dir2_grow_inode( */ if (mapp != &map) kmem_free(mapp, sizeof(*mapp) * count); - *dbp = XFS_DIR2_DA_TO_DB(mp, (xfs_dablk_t)bno); + *dbp = xfs_dir2_da_to_db(mp, (xfs_dablk_t)bno); /* * Update file's size if this is the data space and it grew. */ @@ -612,77 +596,6 @@ xfs_dir2_isleaf( return 0; } -/* - * Getdents put routine for 64-bit ABI, direct form. - */ -static int -xfs_dir2_put_dirent64_direct( - xfs_dir2_put_args_t *pa) -{ - xfs_dirent_t *idbp; /* dirent pointer */ - iovec_t *iovp; /* io vector */ - int namelen; /* entry name length */ - int reclen; /* entry total length */ - uio_t *uio; /* I/O control */ - - namelen = pa->namelen; - reclen = DIRENTSIZE(namelen); - uio = pa->uio; - /* - * Won't fit in the remaining space. - */ - if (reclen > uio->uio_resid) { - pa->done = 0; - return 0; - } - iovp = uio->uio_iov; - idbp = (xfs_dirent_t *)iovp->iov_base; - iovp->iov_base = (char *)idbp + reclen; - iovp->iov_len -= reclen; - uio->uio_resid -= reclen; - idbp->d_reclen = reclen; - idbp->d_ino = pa->ino; - idbp->d_off = pa->cook; - idbp->d_name[namelen] = '\0'; - pa->done = 1; - memcpy(idbp->d_name, pa->name, namelen); - return 0; -} - -/* - * Getdents put routine for 64-bit ABI, uio form. - */ -static int -xfs_dir2_put_dirent64_uio( - xfs_dir2_put_args_t *pa) -{ - xfs_dirent_t *idbp; /* dirent pointer */ - int namelen; /* entry name length */ - int reclen; /* entry total length */ - int rval; /* return value */ - uio_t *uio; /* I/O control */ - - namelen = pa->namelen; - reclen = DIRENTSIZE(namelen); - uio = pa->uio; - /* - * Won't fit in the remaining space. - */ - if (reclen > uio->uio_resid) { - pa->done = 0; - return 0; - } - idbp = pa->dbp; - idbp->d_reclen = reclen; - idbp->d_ino = pa->ino; - idbp->d_off = pa->cook; - idbp->d_name[namelen] = '\0'; - memcpy(idbp->d_name, pa->name, namelen); - rval = uio_read((caddr_t)idbp, reclen, uio); - pa->done = (rval == 0); - return rval; -} - /* * Remove the given block from the directory. * This routine is used for data and free blocks, leaf/node are done @@ -706,7 +619,7 @@ xfs_dir2_shrink_inode( dp = args->dp; mp = dp->i_mount; tp = args->trans; - da = XFS_DIR2_DB_TO_DA(mp, db); + da = xfs_dir2_db_to_da(mp, db); /* * Unmap the fsblock(s). */ @@ -742,7 +655,7 @@ xfs_dir2_shrink_inode( /* * If the block isn't the last one in the directory, we're done. */ - if (dp->i_d.di_size > XFS_DIR2_DB_OFF_TO_BYTE(mp, db + 1, 0)) + if (dp->i_d.di_size > xfs_dir2_db_off_to_byte(mp, db + 1, 0)) return 0; bno = da; if ((error = xfs_bmap_last_before(tp, dp, &bno, XFS_DATA_FORK))) {