diff options
| -rw-r--r-- | fs/xfs/xfs_bmap.c | 46 | ||||
| -rw-r--r-- | fs/xfs/xfs_fs.h | 6 |
2 files changed, 37 insertions, 15 deletions
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c index 8077580..138308e 100644 --- a/fs/xfs/xfs_bmap.c +++ b/fs/xfs/xfs_bmap.c @@ -5819,6 +5819,9 @@ xfs_getbmapx_fix_eof_hole( { __int64_t fixlen; xfs_mount_t *mp; /* file system mount point */ + xfs_ifork_t *ifp; /* inode fork pointer */ + xfs_extnum_t lastx; /* last extent pointer */ + xfs_fileoff_t fileblock; if (startblock == HOLESTARTBLOCK) { mp = ip->i_mount; @@ -5832,7 +5835,15 @@ xfs_getbmapx_fix_eof_hole( out->bmv_length = fixlen; } } else { - out->bmv_block = XFS_FSB_TO_DB(ip, startblock); + if (startblock == DELAYSTARTBLOCK) + out->bmv_block = -2; + else + out->bmv_block = XFS_FSB_TO_DB(ip, startblock); + fileblock = XFS_BB_TO_FSB(ip->i_mount, out->bmv_offset); + ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); + if (xfs_iext_bno_to_ext(ifp, fileblock, &lastx) && + (lastx == (ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t))-1)) + out->bmv_oflags |= BMV_OF_LAST; } return 1; @@ -5867,8 +5878,6 @@ xfs_getbmap( int whichfork; /* data or attr fork */ int prealloced; /* this is a file with * preallocated data space */ - int sh_unwritten; /* true, if unwritten */ - /* extents listed separately */ int iflags; /* interface flags */ int bmapi_flags; /* flags for xfs_bmapi */ @@ -5876,7 +5885,6 @@ xfs_getbmap( iflags = bmv->bmv_iflags; whichfork = iflags & BMV_IF_ATTRFORK ? XFS_ATTR_FORK : XFS_DATA_FORK; - sh_unwritten = (iflags & BMV_IF_PREALLOC) != 0; /* If the BMV_IF_NO_DMAPI_READ interface bit specified, do not * generate a DMAPI read event. Otherwise, if the DM_EVENT_READ @@ -5947,8 +5955,9 @@ xfs_getbmap( xfs_ilock(ip, XFS_IOLOCK_SHARED); - if (whichfork == XFS_DATA_FORK && - (ip->i_delayed_blks || ip->i_size > ip->i_d.di_size)) { + if (((iflags & BMV_IF_DELALLOC) == 0) && + (whichfork == XFS_DATA_FORK) && + (ip->i_delayed_blks || ip->i_size > ip->i_d.di_size)) { /* xfs_fsize_t last_byte = xfs_file_last_byte(ip); */ error = xfs_flush_pages(ip, (xfs_off_t)0, -1, 0, FI_REMAPF); @@ -5958,7 +5967,8 @@ xfs_getbmap( } } - ASSERT(whichfork == XFS_ATTR_FORK || ip->i_delayed_blks == 0); + ASSERT(whichfork == XFS_ATTR_FORK || (iflags & BMV_IF_DELALLOC) || + ip->i_delayed_blks == 0); lock = xfs_ilock_map_shared(ip); @@ -5970,7 +5980,7 @@ xfs_getbmap( nex = XFS_IFORK_NEXTENTS(ip, whichfork) * 2 + 1; bmapi_flags = XFS_BMAPI_AFLAG(whichfork) | - ((sh_unwritten) ? 0 : XFS_BMAPI_IGSTATE); + ((iflags & BMV_IF_PREALLOC) ? 0 : XFS_BMAPI_IGSTATE); /* * Allocate enough space to handle "subnex" maps at a time. @@ -5980,9 +5990,12 @@ xfs_getbmap( bmv->bmv_entries = 0; - if (XFS_IFORK_NEXTENTS(ip, whichfork) == 0) { - error = 0; - goto unlock_and_return; + if ((XFS_IFORK_NEXTENTS(ip, whichfork) == 0)) { + if (((iflags & BMV_IF_DELALLOC) == 0) || + whichfork == XFS_ATTR_FORK) { + error = 0; + goto unlock_and_return; + } } nexleft = nex; @@ -5998,15 +6011,20 @@ xfs_getbmap( ASSERT(nmap <= subnex); for (i = 0; i < nmap && nexleft && bmv->bmv_length; i++) { - out.bmv_oflags = (map[i].br_state == XFS_EXT_UNWRITTEN) ? - BMV_OF_PREALLOC : 0; + out.bmv_oflags = 0; + if (map[i].br_state == XFS_EXT_UNWRITTEN) + out.bmv_oflags |= BMV_OF_PREALLOC; + else if (map[i].br_startblock == DELAYSTARTBLOCK) + out.bmv_oflags |= BMV_OF_DELALLOC; out.bmv_offset = XFS_FSB_TO_BB(mp, map[i].br_startoff); out.bmv_length = XFS_FSB_TO_BB(mp, map[i].br_blockcount); out.bmv_unused1 = out.bmv_unused2 = 0; - ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); + ASSERT(((iflags & BMV_IF_DELALLOC) != 0) || + (map[i].br_startblock != DELAYSTARTBLOCK)); if (map[i].br_startblock == HOLESTARTBLOCK && whichfork == XFS_ATTR_FORK) { /* came to the end of attribute fork */ + out.bmv_oflags |= BMV_OF_LAST; goto unlock_and_return; } else { int full = 0; /* user array is full */ diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h index df859d6..4ae03ba 100644 --- a/fs/xfs/xfs_fs.h +++ b/fs/xfs/xfs_fs.h @@ -113,10 +113,14 @@ struct getbmapx { #define BMV_IF_ATTRFORK 0x1 /* return attr fork rather than data */ #define BMV_IF_NO_DMAPI_READ 0x2 /* Do not generate DMAPI read event */ #define BMV_IF_PREALLOC 0x4 /* rtn status BMV_OF_PREALLOC if req */ -#define BMV_IF_VALID (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC) +#define BMV_IF_DELALLOC 0x8 /* rtn status BMV_OF_DELALLOC if req */ +#define BMV_IF_VALID \ + (BMV_IF_ATTRFORK|BMV_IF_NO_DMAPI_READ|BMV_IF_PREALLOC|BMV_IF_DELALLOC) /* bmv_oflags values - returned for for each non-header segment */ #define BMV_OF_PREALLOC 0x1 /* segment = unwritten pre-allocation */ +#define BMV_OF_DELALLOC 0x2 /* segment = delayed allocation */ +#define BMV_OF_LAST 0x4 /* segment is the last in the file */ /* * Structure for XFS_IOC_FSSETDM. |