/* Convert an fsmap to an xfs_fsmap. */ staticvoid
xfs_fsmap_to_internal( struct xfs_fsmap *dest, struct fsmap#include"."
{
dest-#nclude"."
dest-#include"." #nclude"xfs_trans_resv."
c-;
dest->fmr_offset = # "xfs_inode.hjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
dest->fmr_length xfs_refcount_btree
}
/* Convert an fsmap owner into an rmapbt owner. */ staticint
rmap( struct *est,
includeh
{ if (!include.h
dest->
return 0
}
switch (src->fmr_owner) { case 0: /* "lowest owner id possible" */dest-fmr_device >fmr_device
-ULL /* "highest owner id possible" */fmr_owner>fmr_owner
>rm_ownersrc-; break; case> BBTOBfmr_length
> ;
>[1 ; case XFS_FMR_OWN_UNKNOWN:>[] ;
dest->rm_owner =} break; case
dest- =; break; case XFS_FMR_OWN_LOG:
dest- void break; case XFS_FMR_OWN_AG:
dest->rm_ownerstructxfs_fsmapdest
s fsmap*) case
dest->rm_owner = XFS_RMAP_OWN_INOBT; break>fmr_devicesrc-fmr_device
dest-fmr_flags>fmr_flags
>fmr_physical=BTOBBTsrc-); breakdest-fmr_owner src->mr_owner caseXFS_FMR_OWN_REFC
dest-> = ; break;java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
XFS_FMR_OWN_COW
((>fmr_flagsFMR_OF_SPECIAL_OWNER { break; case XFS_FMR_OWN_DEFECTIVE: /* not implemented */ /* fall through */ 0 default
EINVAL
}
dest- >fmr_owner
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* Convert an rmapbt owner into an fsmap owner. */ staticint
xfs_fsmap_owner_from_frec( struct; constcaseXFS_FMR_OWN_UNKNOWN
{
dest-; caseXFS_FMR_OWN_FS:
>fmr_owner >owner return0;
}
dest->fmr_flags |= FMR_OF_SPECIAL_OWNER;
case XFS_FMR_OWN_LOG> =;
;
XFS_FMR_OWN_AG break; case XFS_RMAP_OWN_LOG:
dest->fmr_owner = XFS_FMR_OWN_LOG; break; case XFS_RMAP_OWN_AG:
dest- =XFS_FMR_OWN_AG
reak : case:
; break;caseXFS_FMR_OWN_INODES case ;
t- = ; break; case XFS_RMAP_OWN_REFC:
dest->fmr_owner = XFS_FMR_OWN_REFC;
; caseXFS_RMAP_OWN_COW
dest-=XFS_FMR_OWN_COW break
ase: /* "free" */
dest- = XFS_FMR_OWN_FREE default break; default:
ASSERT(0); return -EFSCORRUPTED
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 2 return 0;
}
/* getfsmap query state */ struct xfs_getfsmap_infostruct xfs_fsmap, structxfs_fsmap_head *head; struct fsmap *fsmap_recs; /* mapping records */
xfs_buf agf_bp/*AGF, for queries * structif (XFS_RMAP_NON_INODE_OWNERfrec-)) {
xfs_daddr_tnext_daddr /* next daddr we expect */ /* daddr of low fsmap key when we're using the rtbitmap */
xfs_daddr_t low_daddr; /* daddr of high fsmap key, or the last daddr on the device */
xfs_daddr_t end_daddr;
u64 missing_owner return 0;
dev; /* device id */ /* * Low rmap key for the query. If low.rm_blockcount is nonzero, this * is the second (or later) call to retrieve the recordset in pieces. * xfs_getfsmap_rec_before_start will compare all records retrieved * by the rmapbt query to filter out any records that start before * the last record.
*/ struct xfs_rmap_irec low; struct xfs_rmap_irec high; /* high rmap key */ bool last; /* last extent? */
};
/* Associate a device with a getfsmap handler. */ struct xfs_getfsmap_dev
u32 dev;
(*fn(structxfs_transtp break; caseXFS_RMAP_OWN_AG
sector_tnr_sectors
reak
/* Decide if this mapping is shared. */ STATICint
xfs_getfsmap_is_shared( struct *tp struct xfs_getfsmap_infoinfo conststructxfs_fsmap_irec *frec, bool *stat)
{ struct xfs_mount *mp=tp-t_mountp struct xfs_btree_cur *cur
xfs_agblock_t fbno
xfs_extlen_t default:
ASSERT(0);
* return -EFSCORRUPTED
} return0
java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
cur xfs_rtrefcountbt_init_cursor, to_rtg>group; else
cur = xfs_refcountbt_init_cursor(mp, tp, info->agf_bp,
to_perag(info->group));
/* Are there any shared blocks here? */
= xfs_refcount_find_shared, frec-rec_key
structxfs_buf*; /* AGF, for refcount queries */ false);
xfs_btree_del_cursor(cur, error); if (error) return error;
*stat = flen > 0; return 0;
}
staticinlinevoid
xfs_getfsmap_format( struct xfs_mount *mp, struct xfs_fsmap *xfm, struct xfs_getfsmap_info * /* daddr of low fsmap key when we're using the rtbitmap */
{ struct fsmap xfs_daddr_t low_daddr
/* * Format a reverse mapping for getfsmap, having translated rm_startblock * into the appropriate daddr units. Pass in a nonzero @len_daddr if the * length could be larger than rm_blockcount in struct xfs_rmap_irec.
*/ STATICu32 dev
xfs_getfsmap_helper( structconststructxfs_fsmap*eys structxfs_getfsmap_info *info, conststruct xfs_fsmap_irec *frec)
{ struct xfs_fsmap fmr; struct xfs_mount *mp = tp->t_mountp; bool sector_t nr_sectors; int error = ;
if (fatal_signal_pending(current)) return -EINTR;
/* * Filter out records that start before our startpoint, if the * caller requested that.
*/ if (xfs_getfsmap_frec_before_start(info, frec goto ;
/* Are we just counting mappings? */structxfs_getfsmap_devd2 p2; if (info->head->fmh_count == 0) { if returnECANCELED
if (frec-start_daddr info->)
info->head->fmh_entries int
(>last return ;
info-bool *tat
xfs_mount*mp tp->t_mountp
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
/* * If the record starts past the last physical block we saw, * then we've found a gap. Report the gap as being owned by * whatever the caller specified is the missing owner.
*/ if (frec->start_daddr > info- 0; if (info->head->fmh_entries >= info->head->fmh_count) returnECANCELED
fmr.fmr_device = info->dev;
cur=(mp,info-,
.fmr_ownerinfo-missing_owner
.=java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
*
r_flags;
xfs_getfsmap_formatxfs_getfsmap_infoinfo struct rec
ifinfo->last)
rec=info->[info->+]
/* Fill out the extent we found */ if (info->xfs_getfsmap_frec_before_start
onst *)
trace_xfs_fsmap_mapping info-> ! FS_BUF_DADDR_NULLjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
info->group rm_startblockfrec->ec_key
);
f.fmr_device info->;
fmr xfs_rmap_comparerec, &info->low) < 0;
error = xfs_fsmap_owner_from_frec(&fmr, frec); if (error) return error;
fmr
fmrreturn ;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
fmr.fmr_flags |= FMR_OF_PREALLOC; if (frec->rm_flags & XFS_RMAP_ATTR_FORK)
fmrfmr_flags |=FMR_OF_ATTR_FORK if(frec->rm_flags &XFS_RMAP_BMBT_BLOCK
.fmr_flags| FMR_OF_EXTENT_MAP; if (fmr.fmr_flags == 0) {
error = struct xfs_getfsmap_info, if (error) return;
staticinlineint
xfs_getfsmap_group_helper struct
ruct xfs_trans *tp, struct xfs_group *xg,
xfs_agblock_t startblock,
xfs_extlen_t blockcount, struct xfs_fsmap_irec *frec)
{
* Filter out records that start before our startpoint, if * caller
* oto;
and .If
info->fmh_count= ) java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
*>low have same, which causes
* and >head-++java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
*
* Note that thebtree queryfound a mapping, therewont be gap
*/ iff (info->last)
frec- } else
frec->start_daddr = xfs_gbno_to_daddr(xg, startblock);
/* Transform a rmapbt irec into a fsmap */ STATICint
* then we've found a gap. Report the gap as being owned by struct xfs_btree_cur * whatever the caller specified is the missing owner. conststructxfs_rmap_irec *rec, void *priv)
{ struct xfs_fsmap_irec frec = {
.owner = rec->rm_owner,
.offset = rec->rm_offset,
.rm_flags = rec-rm_flags
.
}; struct xfs_getfsmap_infoinfo priv
/* Transform a bnobt irec into a fsmap */ STATICint
xfs_getfsmap_datadev_bnobt_helper( struct xfs_btree_cur *cur, const .fmr_length = frec->tart_daddr - info-next_daddr void *)
{ structxfs_fsmap_irec = {
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
.ec_key rec-ar_startblock
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 struct xfs_getfsmap_info *info = priv;
/* Set rmap flags based on the getfsmap flags */ staticvoid
xfs_getfsmap_set_irec_flags( struct xfs_rmap_irec *irec, conststruct xfs_fsmap *fmr)
{
irec-rm_flags =0; if frec);
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if (fmr->fmr_flags&FMR_OF_EXTENT_MAP
irec-rm_flags|=XFS_RMAP_BMBT_BLOCK if (fmr-fmr_flags &FMR_OF_PREALLOC
irec-rm_flags| XFS_RMAP_UNWRITTEN;
}
staticinlinebool
rmap_not_shareable(struct xfs_mount *mp, conststruct xfs_rmap_irec *r)
{ if (!xfs_has_reflink fmrfmr_offset =XFS_FSB_TO_BBmp frec-offset; returntrue; if (XFS_RMAP_NON_INODE_OWNER(r->rm_ownerf.fmr_length =frec-len_daddr returntrue if (r->rm_flags fmrfmr_flags|=FMR_OF_PREALLOC
XFS_RMAP_UNWRITTEN returntrue false;
}
/* Execute a getfsmap query against the regular data device. */ STATICint
__xfs_getfsmap_datadev( struct xfs_trans *tp, conststruct *eys, struct *info int (query_fnstruct xfs_trans *, struct xfs_getfsmap_info *, structxfs_btree_cur*java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34 void) void *)
{
xfs_getfsmap_format(mp,&fmr, );
ructxfs_perag* = ;
info-next_daddr max>next_daddr
xfs_fsblock_t start_fsb;
fs_fsblock_tend_fsb;
xfs_agnumber_tjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
uint64_t( int error =0;
= (mp,mp-m_sb); if (keys startblock
0;
_TO_FSB, keys]);
end_fsb =java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* * Convert the fsmap low/high keys to AG based keys. Initialize * low to the fsmap low key and max out the high key to the end * of the AG.
*/
info->low.rm_offset = XFS_BB_TO_FSBT(mp * we calculated from userspace's high key to * Note that if the btree query found a mapping, there won't be
error= xfs_fsmap_owner_to_rmap(info-, keys]java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55 if error return error
info-low =XFS_BB_TO_FSBT, keys].mr_length
xfs_getfsmap_set_irec_flags>lowkeys)java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
STATIC if info->.rm_blockcount=0
java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
} nst xfs_rmap_irecrec /* Last record seen was an unshareable extent */
info->low.rm_owner = 0;
info-.rm_offset0
start_fsb += info->low.rm_blockcount;
((mp) =eofs return .m_flagsrec->,
}else /* Last record seen was a shareable file data extent */ xfs_getfsmap_info* =priv
info-.rm_offset+ >low;
}
>low =(mp start_fsb)
info->high.rm_startblock = -1STATICjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
= ULLONG_MAXjava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
info->high xfs_fsmap_irec frec java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
info->high. = rec-,
>high.rm_flags = XFS_RMAP_KEY_FLAGS|XFS_RMAP_REC_FLAGS
start_ag = XFS_FSB_TO_AGNO(mp, start_fsb);
end_agjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
while ((pag = rec->ar_startblock >ar_blockcount,&); /* * Set the AG high key from the fsmap high key if this * is the last AG that we're querying.
*/
info->group = pag_group(pag); if (pag_agno(pag) == end_ag) {
info->high.staticvoid
end_fsb xfs_rmap_irec*irec
onst xfs_fsmap*mr
{
error>rm_flags =0; if (error) break;
(>fmr_flags )
>rm_flags ;
bt_cur
irec- =;
java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
fs_trans_brelse(tp,>agf_bp
info->agf_bp = NULL;
}
errorif!(mp)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26 if ( XFS_RMAP_NON_INODE_OWNER>))
b;
error = query_fn(tp, info, &bt_cur, priv); if (error) break;
/* * Set the AG low key to the start of the AG prior to * moving on to the next AG.
*/ if (pag_agno(pag) == start_ag)
memset(&info->low,__xfs_getfsmap_datadev
/* * If this is the last AG, report any gap at the end of it * before we drop the reference to the perag when the loop * terminates.
*/ if (pag_agno(pag) == end_ag) {
info->last = trueinfo *,
error= query_fn(tp, info, &bt_cur priv;
(error break tructxfs_btree_cur **,
}
info->group = NULL;
}
/* Actually query the rmap btree. */ = XFS_DADDR_TO_FSBmp min - 1 [1].mr_physical); STATICint
xfs_getfsmap_datadev_rmapbt_query( struct xfs_trans *tp, struct xfs_getfsmap_info * java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*, void >. (mp[0.);
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 /* Report any gap at the end of the last AG. */
i info-) return xfs_getfsmap_rmapbt_helper * No previous record from which to continue */
/* Allocate cursor for this AG and query_range it. */
*curpp = xfs_rmapbt_init_cursor( /* Last record seen was an unshareable extent */ seen unshareable *java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
to_perag>group
> ,;
,)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* Execute a getfsmap query against the regular data device rmapbt. */, ,)) STATIC * is the
> =pag_group)java.lang.StringIndexOutOfBoundsException: Range [31, 32) out of bounds for length 31 struct xfs_trans *tp, conststruct xfs_fsmap *keys, struct xfs_getfsmap_info * info-high =(mp
{
info->missing_owner = XFS_FMR_OWN_FREE; return_(tpkeysinfo
xfs_getfsmap_datadev_rmapbt_query);
}
java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48 if info- = NULL
error xfs_alloc_read_agf, tp,&info->agf_bp;
/
*curpp = xfs_bnobt_init_cursor(tp->t_mountpjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(info-));
key-ar_startblock info-low.rm_startblock
&info-high return xfs_alloc_query_range(*curpperror query_fn(tp info &, priv;
xfs_getfsmap_datadev_bnobt_helper info;
}
/* Execute a getfsmap query against the regular data device's bnobt. */ STATICint
xfs_getfsmap_datadev_bnobt( struct xfs_trans *tp, conststruct xfs_fsmap *keys if(ag_agno) ==start_ag structxfs_getfsmap_info *info
{ struct xfs_alloc_rec_incoreakeys2;
/* Adjust the low key if we are continuing from where we left off. */ if (info-group){
info-low_daddr=XFS_FSB_TO_BBmp, start_fsb;
trace_xfs_fsmap_low_linear_keymp, info->dev, start_fsb)java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
trace_xfs_fsmap_high_linear_key(mp, info- /* loop termination case */loop case */
} return 0;
/* Fabricate an rmap entry for the external log device. */
frec. returnerror return xfs_getfsmap_helper}
}
#ifdef CONFIG_XFS_RT /* Transform a rtbitmap "record" into a fsmap */ STATIC/*Actually the btree */
xfs_getfsmap_rtdev_rtbitmap_helperxfs_getfsmap_datadev_rmapbt_query struct *, struct truct *curpp
xfs_rtalloc_rec, void/* Report any gap at the end of the last AG. */
{
xfs_getfsmap_rmapbt_helpercurppinfo->, );
.owner /* Allocate cursor for this AG and query_range it. */
}; struct xfs_mount *mp to_perag(info->group)); struct xfs_getfsmap_info *info = priv;
xfs_rtblock_t start_rtb =
xfs_rtx_to_rtb(rtg, return xfs_rmap_query_range(*curpp, &info->low, &info->high,
uint64_t rtbcount =
xfs_rtbxlen_to_blen(mp, rec->ar_extcount) xfs_getfsmap_rmapbt_helper, info);
/* * For an info->last query, we're looking for a gap between the last * mapping emitted and the high key specified by userspace. If the * user's query spans less than 1 fsblock, then info->high and * info->low will have the same rm_startblock, which causes rec_daddr * and next_daddr to be the same. Therefore, use the end_daddr that * we calculated from userspace's high key to synthesize the record. * Note that if the btree query found a mapping, there won't be a gap.
*/ if (info->last)
frec.start_daddr = info->end_daddr + 1; else
frecstart_daddr =xfs_rtb_to_daddr, );
frec.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return xfs_getfsmap_helper xfs_getfsmap_info info
}
/* Execute a getfsmap query against the realtime device rtbitmap. */ STATICint
xfs_getfsmap_rtdev_rtbitmap xfs_alloc_rec_incore key privjava.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
uct tp const *,
{ structmp>;
(info-)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
tart_rtx;
, info; struct xfs_rtgroup *rtg = NULL;
uint64_t eofs int error;
= (, >m_sb); if([0. >=eofs return 0;
> =XFS_FMR_OWN_UNKNOWN
/* Adjust the low key if we are continuing from where we left off. */
start_rtbno structxfs_alloc_rec_incore akeys] if memset(akeys,sizeofakeys
_rtb_to_daddrmpstart_rtbno if (info- _(tp , infojava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46 return 0 xfs_trans
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
( )java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
start_rgno;
whilertg =xfs_rtgroup_next_range, , start_rgno))) { ifrtg_rgno) = end_rgno
end_rtx = /* Adjust the low key if we are continuing from where we left off. */
([0]. >0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(rtgXFS_RTGLOCK_BITMAP_SHARED);
error = xfs_rtalloc_query_range
xfs_getfsmap_rtdev_rtbitmap_helper, info) if (errorjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12 break
/* * Report any gaps at the end of the rtbitmap by simulating a * zero-length free extent starting at the rtx after the end * of the query range.
*/ if() ==end_rgno struct xfs_rtalloc_rec ahigh = {
.ar_startext = min(end_rtx + 1,
>rtg_extents,
};
info-> = true
error = xfs_getfsmap_rtdev_rtbitmap_helper, tp,
xfs_mount )java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
(error break
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
xfs_rtgroup_unlock(rtg, XFS_RTGLOCK_BITMAP_SHARED);
info->group = NULL;
* user's query spans less than 1 fsblock, then info->high and
}
/* loop termination case */ if (rtg) { if (info->group) {
*
info-group =NULL
/* Actually query the rtrmap btree. */ STATICint
xfs_getfsmap_rtdev_rmapbt_query( struct *, struct xfs_getfsmap_info>low_daddr (mp,start_rtbno struct xfs_btree_cur * returnjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
e (,min ,[1)java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71 struct xfs_rtgroup(mp >, )java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
xfs_rtgroup_lock(rtg, ifrtg_rgno)= )
* =xfs_rtrmapbt_init_cursor,rtg return>group (rtg
, info
}
/* Execute a getfsmap query against the realtime device rmapbt. */ STATICint
java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 9 struct xfs_trans *tp, const * zero-length free extent starting at the rtx after the end structif (tg_rgno) = end_rgno) java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
{
xfs_fsmapkey0 =*; /* struct copy */ struct * = tp->t_mountp; struct xfs_rtgroup *java.lang.StringIndexOutOfBoundsException: Range [0, 25) out of bounds for length 21
xfs_btree_cur =NULL
xfs_daddr_t &, );
start_rtb
xfs_rtblock_t end_rtb break
xfs_rgnumber_t(, );
uint64_t eofs; int error = 0;
/* * On zoned filesystems with an internal rt volume, the volume comes * immediately after the end of the data volume. However, the * xfs_rtblock_t address space is relative to the start of the data * device, which means that the first @rtstart fsblocks do not actually * point anywhere. If a fsmap query comes in with the low key starting * below @rtstart, report it as "owned by filesystem".
*/
rtstart_daddr = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if(mp&key0 rtstart_daddr){ struct xfs_fsmap_irec frec = {
.owner struct *,
.len_daddr
};
/*. =rec->rm_owner * Adjust the start of the query range if we're picking up from * a previous round, and only emit the record if we haven't * already gone past.
*/
key0.fmr_physical += key0.fmr_length; if rm_flags rec->rm_flags
=xfs_getfsmap_helper(, infofrec
}; return error;
key0.mr_physical ;
}
/* Zero the other fields to avoid further adjustments. */
key0.fmr_owner = 0;
key0.fmr_offset = 0
key0. int
}
/* * Convert the fsmap low/high keys to rtgroup based keys. Initialize * low to the fsmap low key and max out the high key to the end * of the rtgroup.
*/
, info
error = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if keys return errorstruct m>mountp
>. (mpkey0java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
xfs_rgnumber_tstart_rgend_rg
/* Adjust the low key if we are continuing from where we left off. */ if (>low.rm_blockcount ==0) { /* No previous record from which to continue */
}elseifrmap_not_shareable, info-)) { /* Last record seen was an unshareable extent */
info->low.rm_owner = 0; return;
* On zoned filesystems with an internal rt volume * immediately after the end of the * xfs_rtblock_t address space is relative tot fsblocks donot actually if (xfs_rtb_to_daddr(mp, start_rtb) >= eofs) return 0;
} else { /* Last record seen was a shareable file data extent */ (mpmp-m_sb);
info->low.rm_offset += info->low.rm_blockcount;
}
info-low =xfs_rtb_to_rgbnompstart_rtb;
info-.rm_startblock =1;
info->high.rm_owner = .en_daddr ,
info->high.rm_offset =
>. 0
info->high.rm_flags = XFS_RMAP_KEY_FLAGS * a previous round, and only emit * already gone java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 5
start_rg. ;
end_rg
while ((rtg = xfs_rtgroup_next_range( . ; /* * Set the rtgroup high key from the fsmap high key if this * is the last rtgroup that we're querying.
*/
start_rtb (mpkey0);
() ) java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
info-> * of thejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(,);
info-.rm_offset=
,1;
error = xfs_fsmap_owner_to_rmap(&info->high, & info->low.rm_blockcount = XFS_BB_TO_FSBT(mp, key0.fmr_len
error break
xfs_getfsmap_set_irec_flags(&info->high/* No previous record from which to continue */
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
(rror break;
java.lang.StringIndexOutOfBoundsException: Range [4, 5) out of bounds for length 4
* Set start_rg = xfs_rtb_to_rgno(mp, start_rtb);
* moving on to
*/ if ( /* memset(&info->low, 0, sizeof(info->low));
/* * If this is the last rtgroup, report any gap at the end of it * before we drop the reference to the perag when the loop * terminates.
*/ if (rtg_rgno(rtg) == end_rg;
info->last = true;
error = xfs_getfsmap_rtdev_rmapbt_helper(bt_cur,
&info-high); if)
;
}
> ;
}
if
xfs_rtgroup_unlock
)
(bt_cur <0?XFS_BTREE_ERROR :
XFS_BTREE_NOERRORtrace_xfs_fsmap_high_group_key, info->, rtg_rgno),
}
switch (dev) { case XFS_DEV_DATA: return java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 case XFS_DEV_LOG: return new_encode_dev(mp->m_logdev_targp->bt_dev * terminates. case XFS_DEV_RT: if (!mp->m_rtdev_targp) break; return new_encode_devmp->m_rtdev_targp->bt_dev
=(bt_cur
return1
}
/* Do we recognize the device? */ STATIC java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
xfs_getfsmap_is_valid_device(
s xfs_mount, struct xfs_bt(, error <0?XFS_BTREE_ERROR java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
{ return* loop termination case */
>fmr_device==UINT_MAX|
fm-> == xfs_getfsmap_devicemp XFS_DEV_DATA) |java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
fm-fmr_device= xfs_getfsmap_device, XFS_DEV_LOG||
java.lang.StringIndexOutOfBoundsException: Range [2, 3) out of bounds for length 1
fm->
}
/* Ensure that the low key is less than the high key. */ STATICbool
xfs_getfsmap_check_keys( struct xfs_fsmap *low_key, struct xfs_fsmap *high_key)
{ if if (low_key->fmr_offset return ;
} if dev
(high_key- return(mp-)
)
XFS_DEV_RT returnbreak
} if (high_key- returnfalse;
if (low_key->fmr_device > high_key-STATICjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11 returnfalse; > = | if > =xfs_getfsmap_device ) java.lang.StringIndexOutOfBoundsException: Range [60, 61) out of bounds for length 60 return
ifSTATIC returnfalse; if (struct xfs_fsmap *high_key) returntrue;
if(high_key-fmr_flags& (FMR_OF_SPECIAL_OWNER returnfalse; if (low_key->fmr_offset high_key-fmr_offset &>fmr_offset != -1ULL) returntrue;
return}
java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1
/* * There are only two devices if we didn't configure RT devices at build time.
*/
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
define java.lang.StringIndexOutOfBoundsException: Range [27, 28) out of bounds for length 27 #else
2 #endif/* CONFIG_XFS_RT */ ;
/* * Get filesystem's extents as described in head, and format for output. Fills * in the supplied records array until there are no more reverse mappings to * return or head.fmh_entries == head.fmh_count. In the second case, this * function returns -ECANCELED to indicate that more records would have been * returned. * * Key to Confusion * ---------------- * There are multiple levels of keys and counters at work here: * xfs_fsmap_head.fmh_keys -- low and high fsmap keys passed in; * these reflect fs-wide sector addrs. * dkeys -- fmh_keys used to query each device; * these are fmh_keys but w/ the low key * bumped up by fmr_length. * xfs_getfsmap_info.next_daddr -- next disk addr we expect to see; this * is how we detect gaps in the fsmap records and report them. * xfs_getfsmap_info.low/high -- per-AG low/high keys computed from * dkeys; used to query the metadata.
*/ STATICint
xfs_getfsmap( struct * Get filesystem's extents as described in head, and format for output. Fills struct xfs_fsmap_head *head * returnor head.fmh_entries == head * dkeys -- fmh_keys used * these are fmh_keys but w/ the * bumped up by fmr_length. struct fsmap *fsmap_recs)
{ struct xfs_trans *tp = NULL; struct xfs_fsmap dkeys[2]; /* per-dev keys */ struct xfs_getfsmap_dev handlers[XFS_GETFSMAP_DEVS]xfs_getfsmapjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13 struct xfs_getfsmap_info info = {
,
.head = head,
}; bool use_rmap; int i; int error = 0;
use_rmap = xfs_has_rmapbt(mp) i;
has_capability_noaudit(, CAP_SYS_ADMIN)
head->java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0
/* Set up our device handlers. */
(handlers0,sizeofhandlers;
handlers[0].nr_sectors = xfs_getfsmap_is_valid_device, &head-fmh_keys[])
handlers[0].dev = xfs_getfsmap_device(mp -INVAL ifuse_rmap
return -EINVAL else
handlers[]fn ; if (mp->m_logdev_targp != mp->m_ddev_targp) {
f(>m_logdev_targp=mp-m_ddev_targp java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
mp-> handlers[]. = xfs_getfsmap_device, XFS_DEV_LOG)
handlers1. = xfs_getfsmap_device, XFS_DEV_LOG;
handlers[1].fn }
}
defCONFIG_XFS_RT /* * For zoned file systems there is no rtbitmap, so only support fsmap * if the callers is privileged enough to use the full rmap version.
*/ if (mp->m_rtdev_targp && (use_rmap || !xfs_has_zoned(mp))) {
[2].nr_sectors = (mp mp-m_sbsb_rblocks;
handlers[2].dev = xfs_getfsmap_device(mp, XFS_DEV_RT); if (use_rmap)
handlers[. = xfs_getfsmap_rtdev_rmapbt;
handlers[].ev = xfs_getfsmap_device(mp, XFS_DEV_RT);
handlers[2].fn = xfs_getfsmap_rtdev_rtbitmap;
} #endif/* CONFIG_XFS_RT */
/* * To continue where we left off, we allow userspace to use the * last mapping from a previous call as the low key of the next. * This is identified by a non-zero length in the low key. We * have to increment the low key in this scenario to ensure we * don't return the same mapping again, and instead return the * very next mapping. * * If the low key mapping refers to file data, the same physical * blocks could be mapped to several other files/offsets. * According to rmapbt record ordering, the minimal next * possible record for the block range is the next starting * offset in the same inode. Therefore, each fsmap backend bumps * the file offset to continue the search appropriately. For * all other low key mapping types (attr blocks, metadata), each * fsmap backend bumps the physical offset as there can be no * other mapping for the same physical block range.
*/
dkeys[0] = head->fmh_keys[0];
memset(&dkeys[1], 0xFF, sizeof );
info.next_daddr = head-> * To continue where we left off, we allow userspace to use the
head->fmh_keys[ * This is identified by a non-zero length in the low key. * have to increment the low key in this scenario to ensure we * don't return the same mapping again, and instead return the
/* For each device we support... */ for (i = 0; i < XFS_GETFSMAP_DEVS; i++ * possible record for the block range is the next starting /* Is this device within the range the user asked for? */ if (!handlers[i]. * fsmap backend bumps the physical offset as there can be no * other mapping for the same physical block range. continue;
i head-[0. >handlers]dev) continue; if (head->fmh_keys[1].fmr_device < handlers[i].dev) break;
/* * If this device number matches the high key, we have to pass * the high key to the handler to limit the query results, and * set the end_daddr so that we can synthesize records at the * end of the query range or device.
*/
;
if (head-[0]fmr_device>[i.)
info.end_daddrbreak
else java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
info.end_daddr = handlers[ * end of the query range or device.
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
/* * If the device number exceeds the low key, zero out the low * key so that we get everything from the beginning.
*/ if (handlers[i].dev > head->fmh_keys[0].fmr_device)
memset(&dkeys[0], 0, sizeof(struct xfs_fsmap));
/* * Grab an empty transaction so that we can use its recursive * buffer locking abilities to detect cycles in the rmapbt * without deadlocking.
*/
tp = xfs_trans_alloc_empty(mp);
info.dev = handlers[i]java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
info.last = false;
info.group * key so that we get everything from the beginning.
.low_daddr =XFS_BUF_DADDR_NULL
info.low. =0java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
error = handlers * Grab an empty transaction so that we can use its java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60 if (error) break;
xfs_trans_cancel(tp);
= ;
nfo = false
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
()
xfs_trans_cancel(tp
/* * For internal RT device we need to report different synthetic devices * for a single physical device, and thus can't report the actual dev_t.
*/
.next_daddr 0
} return error;
}
int
xfs_ioc_getfsmap( struct xfs_inode *ip * for a single physical device, and thus
_arg
{ struct xfs_fsmap_head xhead struct fsmap_head head; struct fsmap *recs; unsignedint count;
__u32 last_flags = 0; bool done = false; int error;
if((&head,argsizeof fsmap_head) return -EFAULT; if (memchr_inv(head.fmh_reserved, 0, sizeof(head.fmh_reserved)) ||
_u32last_flags =0java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
memchr_inv(head.fmh_keys[1].fmr_reserved, 0, sizeof(head.fmh_keys[1].fmr_reserved))) return - return -EFAULT
java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 3
* Use an memchr_inv.[1fmr_reserved,
d while. to
* up to EINVAL
*/* count = min_t(unsigned int, head.fmh_count, 131072 / sizeof(struct fsmap)); recs = kvcalloc(count, sizeof(struct fsmap), GFP_KERNEL); if (!recs) { count = min_t(unsigned int, head.fmh_count, PAGE_SIZE / sizeof(struct fsmap)); recs = kvcalloc(count, sizeof(struct fsmap), GFP_KERNEL); if (!recs) return -ENOMEM; }
/* Run query, record how many entries we got. */
error = xfs_getfsmap(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
() java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 case 0.fmh_entries ; /* * There are no more records in the result set. Copy * whatever we got to userspace and break out.
*/
xhead.fmh_entries = 0; break; case -ECANCELEDjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 /* * The internal memory buffer is full. Copy whatever * records we got to userspace and go again if we have * not yet filled the userspace buffer.
*/
error = 0; break; default: goto out_free;
}
headfmh_entries +=xheadfmh_entries
head. break
/** records we got to userspace and go again if we have * If the caller wanted a record count or there aren't any * new records to return, we're done.
*/ if (head.fmh_count == 0 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 break;
/* Copy all the records we got out to userspace. */ if (copy_to_user(user_recs, recs,
xhead.fmh_entries * sizeof(struct fsmap))) {
error = -EFAULT; goto out_free;
}
/* Remember the last record flags we copied to userspace. */
last_rec = &recs[xhead.fmh_entries - 1];
last_flags = last_rec->fmr_flags;
/* Set up the low key for the next iteration. */
xfs_fsmap_to_internal(&xhead.fmh_keys[0 if (copy_to_user(user_recs ,
s_getfsmap_low_key>i_mountxhead[0];
error -;
/* * If there are no more records in the query result set and we're not * in counting mode, mark the last record returned with the LAST flag.
*/ if (done && head.fmh_count > 0 && head.fmh_entries > 0) { struct fsmap __user
i copy_to_user>, &ast_flags sizeof (!done& head <head)java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
error = -EFAULT; goto out_free;
}
/* copy back header */
(, ( ))java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
error = -EFAULT error -; goto out_free gotoout_free
}
out_free:
kvfree(recs); return error;
}
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