diff options
| -rw-r--r-- | fs/xfs/xfs_bmap.c | 52 | ||||
| -rw-r--r-- | fs/xfs/xfs_bmap.h | 15 | ||||
| -rw-r--r-- | fs/xfs/xfs_da_btree.c | 32 | ||||
| -rw-r--r-- | fs/xfs/xfs_rtalloc.c | 32 |
4 files changed, 19 insertions, 112 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index fc5acf0b921..fd06bf17d09 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -4969,58 +4969,6 @@ error0: } /* - * Map file blocks to filesystem blocks, simple version. - * One block (extent) only, read-only. - * For flags, only the XFS_BMAPI_ATTRFORK flag is examined. - * For the other flag values, the effect is as if XFS_BMAPI_METADATA - * was set and all the others were clear. - */ -int /* error */ -xfs_bmapi_single( - xfs_trans_t *tp, /* transaction pointer */ - xfs_inode_t *ip, /* incore inode */ - int whichfork, /* data or attr fork */ - xfs_fsblock_t *fsb, /* output: mapped block */ - xfs_fileoff_t bno) /* starting file offs. mapped */ -{ - int eof; /* we've hit the end of extents */ - int error; /* error return */ - xfs_bmbt_irec_t got; /* current file extent record */ - xfs_ifork_t *ifp; /* inode fork pointer */ - xfs_extnum_t lastx; /* last useful extent number */ - xfs_bmbt_irec_t prev; /* previous file extent record */ - - ifp = XFS_IFORK_PTR(ip, whichfork); - if (unlikely( - XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE && - XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS)) { - XFS_ERROR_REPORT("xfs_bmapi_single", XFS_ERRLEVEL_LOW, - ip->i_mount); - return XFS_ERROR(EFSCORRUPTED); - } - if (XFS_FORCED_SHUTDOWN(ip->i_mount)) - return XFS_ERROR(EIO); - XFS_STATS_INC(xs_blk_mapr); - if (!(ifp->if_flags & XFS_IFEXTENTS) && - (error = xfs_iread_extents(tp, ip, whichfork))) - return error; - (void)xfs_bmap_search_extents(ip, bno, whichfork, &eof, &lastx, &got, - &prev); - /* - * Reading past eof, act as though there's a hole - * up to end. - */ - if (eof || got.br_startoff > bno) { - *fsb = NULLFSBLOCK; - return 0; - } - ASSERT(!isnullstartblock(got.br_startblock)); - ASSERT(bno < got.br_startoff + got.br_blockcount); - *fsb = got.br_startblock + (bno - got.br_startoff); - return 0; -} - -/* * Unmap (remove) blocks from a file. * If nexts is nonzero then the number of extents to remove is limited to * that value. If not all extents in the block range can be removed then diff --git a/fs/xfs/xfs_bmap.h b/fs/xfs/xfs_bmap.h index 16257c6eba7..01693390df2 100644 --- a/fs/xfs/xfs_bmap.h +++ b/fs/xfs/xfs_bmap.h @@ -299,21 +299,6 @@ int xfs_bmapi_read(struct xfs_inode *ip, xfs_fileoff_t bno, int *nmap, int flags); /* - * Map file blocks to filesystem blocks, simple version. - * One block only, read-only. - * For flags, only the XFS_BMAPI_ATTRFORK flag is examined. - * For the other flag values, the effect is as if XFS_BMAPI_METADATA - * was set and all the others were clear. - */ -int /* error */ -xfs_bmapi_single( - struct xfs_trans *tp, /* transaction pointer */ - struct xfs_inode *ip, /* incore inode */ - int whichfork, /* data or attr fork */ - xfs_fsblock_t *fsb, /* output: mapped block */ - xfs_fileoff_t bno); /* starting file offs. mapped */ - -/* * Unmap (remove) blocks from a file. * If nexts is nonzero then the number of extents to remove is limited to * that value. If not all extents in the block range can be removed then diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c index 44dfa39099e..70a5f580e5e 100644 --- a/fs/xfs/xfs_da_btree.c +++ b/fs/xfs/xfs_da_btree.c @@ -1975,32 +1975,16 @@ xfs_da_do_buf( /* * Optimize the one-block case. */ - if (nfsb == 1) { - xfs_fsblock_t fsb; - - if ((error = - xfs_bmapi_single(trans, dp, whichfork, &fsb, - (xfs_fileoff_t)bno))) { - return error; - } + if (nfsb == 1) mapp = ↦ - if (fsb == NULLFSBLOCK) { - nmap = 0; - } else { - map.br_startblock = fsb; - map.br_startoff = (xfs_fileoff_t)bno; - map.br_blockcount = 1; - nmap = 1; - } - } else { + else mapp = kmem_alloc(sizeof(*mapp) * nfsb, KM_SLEEP); - nmap = nfsb; - error = xfs_bmapi_read(dp, (xfs_fileoff_t)bno, nfsb, - mapp, &nmap, - xfs_bmapi_aflag(whichfork)); - if (error) - goto exit0; - } + + nmap = nfsb; + error = xfs_bmapi_read(dp, (xfs_fileoff_t)bno, nfsb, mapp, + &nmap, xfs_bmapi_aflag(whichfork)); + if (error) + goto exit0; } else { map.br_startblock = XFS_DADDR_TO_FSB(mp, mappedbno); map.br_startoff = (xfs_fileoff_t)bno; diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 35561a511b5..e5f40c6460b 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -856,33 +856,23 @@ xfs_rtbuf_get( xfs_buf_t **bpp) /* output: buffer for the block */ { xfs_buf_t *bp; /* block buffer, result */ - xfs_daddr_t d; /* disk addr of block */ - int error; /* error value */ - xfs_fsblock_t fsb; /* fs block number for block */ xfs_inode_t *ip; /* bitmap or summary inode */ + xfs_bmbt_irec_t map; + int nmap; + int error; /* error value */ ip = issum ? mp->m_rsumip : mp->m_rbmip; - /* - * Map from the file offset (block) and inode number to the - * file system block. - */ - error = xfs_bmapi_single(tp, ip, XFS_DATA_FORK, &fsb, block); - if (error) { + + error = xfs_bmapi_read(ip, block, 1, &map, &nmap, XFS_DATA_FORK); + if (error) return error; - } - ASSERT(fsb != NULLFSBLOCK); - /* - * Convert to disk address for buffer cache. - */ - d = XFS_FSB_TO_DADDR(mp, fsb); - /* - * Read the buffer. - */ - error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, d, + + ASSERT(map.br_startblock != NULLFSBLOCK); + error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp, + XFS_FSB_TO_DADDR(mp, map.br_startblock), mp->m_bsize, 0, &bp); - if (error) { + if (error) return error; - } ASSERT(!xfs_buf_geterror(bp)); *bpp = bp; return 0; |