diff options
Diffstat (limited to 'fs/xfs/xfs_dir2.c')
| -rw-r--r-- | fs/xfs/xfs_dir2.c | 140 |
1 files changed, 21 insertions, 119 deletions
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c index dba7a71cedf..4580ce00aeb 100644 --- a/fs/xfs/xfs_dir2.c +++ b/fs/xfs/xfs_dir2.c @@ -24,20 +24,17 @@ #include "xfs_trans.h" #include "xfs_sb.h" #include "xfs_ag.h" -#include "xfs_dir2.h" #include "xfs_mount.h" #include "xfs_da_btree.h" #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" -#include "xfs_dir2_sf.h" #include "xfs_dinode.h" #include "xfs_inode.h" #include "xfs_inode_item.h" #include "xfs_bmap.h" -#include "xfs_dir2_data.h" -#include "xfs_dir2_leaf.h" -#include "xfs_dir2_block.h" -#include "xfs_dir2_node.h" +#include "xfs_dir2.h" +#include "xfs_dir2_format.h" +#include "xfs_dir2_priv.h" #include "xfs_error.h" #include "xfs_vnodeops.h" #include "xfs_trace.h" @@ -122,15 +119,15 @@ int xfs_dir_isempty( xfs_inode_t *dp) { - xfs_dir2_sf_t *sfp; + xfs_dir2_sf_hdr_t *sfp; ASSERT((dp->i_d.di_mode & S_IFMT) == S_IFDIR); if (dp->i_d.di_size == 0) /* might happen during shutdown. */ return 1; if (dp->i_d.di_size > XFS_IFORK_DSIZE(dp)) return 0; - sfp = (xfs_dir2_sf_t *)dp->i_df.if_u1.if_data; - return !sfp->hdr.count; + sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; + return !sfp->count; } /* @@ -500,129 +497,34 @@ xfs_dir_canenter( /* * Add a block to the directory. - * This routine is for data and free blocks, not leaf/node blocks - * which are handled by xfs_da_grow_inode. + * + * This routine is for data and free blocks, not leaf/node blocks which are + * handled by xfs_da_grow_inode. */ int xfs_dir2_grow_inode( - xfs_da_args_t *args, - int space, /* v2 dir's space XFS_DIR2_xxx_SPACE */ - xfs_dir2_db_t *dbp) /* out: block number added */ + struct xfs_da_args *args, + int space, /* v2 dir's space XFS_DIR2_xxx_SPACE */ + xfs_dir2_db_t *dbp) /* out: block number added */ { - xfs_fileoff_t bno; /* directory offset of new block */ - int count; /* count of filesystem blocks */ - xfs_inode_t *dp; /* incore directory inode */ - int error; - int got; /* blocks actually mapped */ - int i; - xfs_bmbt_irec_t map; /* single structure for bmap */ - int mapi; /* mapping index */ - xfs_bmbt_irec_t *mapp; /* bmap mapping structure(s) */ - xfs_mount_t *mp; - int nmap; /* number of bmap entries */ - xfs_trans_t *tp; - xfs_drfsbno_t nblks; + struct xfs_inode *dp = args->dp; + struct xfs_mount *mp = dp->i_mount; + xfs_fileoff_t bno; /* directory offset of new block */ + int count; /* count of filesystem blocks */ + int error; trace_xfs_dir2_grow_inode(args, space); - dp = args->dp; - tp = args->trans; - mp = dp->i_mount; - nblks = dp->i_d.di_nblocks; /* * Set lowest possible block in the space requested. */ bno = XFS_B_TO_FSBT(mp, space * XFS_DIR2_SPACE_SIZE); count = mp->m_dirblkfsbs; - /* - * Find the first hole for our block. - */ - if ((error = xfs_bmap_first_unused(tp, dp, count, &bno, XFS_DATA_FORK))) - return error; - nmap = 1; - ASSERT(args->firstblock != NULL); - /* - * Try mapping the new block contiguously (one extent). - */ - if ((error = xfs_bmapi(tp, dp, bno, count, - XFS_BMAPI_WRITE|XFS_BMAPI_METADATA|XFS_BMAPI_CONTIG, - args->firstblock, args->total, &map, &nmap, - args->flist))) - return error; - ASSERT(nmap <= 1); - if (nmap == 1) { - mapp = ↦ - mapi = 1; - } - /* - * Didn't work and this is a multiple-fsb directory block. - * Try again with contiguous flag turned on. - */ - else if (nmap == 0 && count > 1) { - xfs_fileoff_t b; /* current file offset */ - /* - * Space for maximum number of mappings. - */ - mapp = kmem_alloc(sizeof(*mapp) * count, KM_SLEEP); - /* - * Iterate until we get to the end of our block. - */ - for (b = bno, mapi = 0; b < bno + count; ) { - int c; /* current fsb count */ - - /* - * Can't map more than MAX_NMAP at once. - */ - nmap = MIN(XFS_BMAP_MAX_NMAP, count); - c = (int)(bno + count - b); - if ((error = xfs_bmapi(tp, dp, b, c, - XFS_BMAPI_WRITE|XFS_BMAPI_METADATA, - args->firstblock, args->total, - &mapp[mapi], &nmap, args->flist))) { - kmem_free(mapp); - return error; - } - if (nmap < 1) - break; - /* - * Add this bunch into our table, go to the next offset. - */ - mapi += nmap; - b = mapp[mapi - 1].br_startoff + - mapp[mapi - 1].br_blockcount; - } - } - /* - * Didn't work. - */ - else { - mapi = 0; - mapp = NULL; - } - /* - * See how many fsb's we got. - */ - for (i = 0, got = 0; i < mapi; i++) - got += mapp[i].br_blockcount; - /* - * Didn't get enough fsb's, or the first/last block's are wrong. - */ - if (got != count || mapp[0].br_startoff != bno || - mapp[mapi - 1].br_startoff + mapp[mapi - 1].br_blockcount != - bno + count) { - if (mapp != &map) - kmem_free(mapp); - return XFS_ERROR(ENOSPC); - } - /* - * Done with the temporary mapping table. - */ - if (mapp != &map) - kmem_free(mapp); + error = xfs_da_grow_inode_int(args, &bno, count); + if (error) + return error; - /* account for newly allocated blocks in reserved blocks total */ - args->total -= dp->i_d.di_nblocks - nblks; *dbp = xfs_dir2_da_to_db(mp, (xfs_dablk_t)bno); /* @@ -634,7 +536,7 @@ xfs_dir2_grow_inode( size = XFS_FSB_TO_B(mp, bno + count); if (size > dp->i_d.di_size) { dp->i_d.di_size = size; - xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE); + xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE); } } return 0; |