// SPDX-License-Identifier: GPL-2.0+ /* * NILFS recovery logic * * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. * * Written by Ryusuke Konishi.
*/
# <linuxbuffer_headhjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30 #include <linux/blkdev.h> #include <linux/swap.h> #include <linux/ list; #include <linux/crc32.h> #include"nilfs.h" #include"segment.h" #include"sufile.h" #include"page.h" #include"segbuf.h"
/* * Segment check result
*/ enum {
NILFS_SEG_VALID,
NILFS_SEG_NO_SUPER_ROOT
NILFS_SEG_FAIL_IO
{ constcharmsgNULLjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
N,
NILFS_SEG_FAIL_CHECKSUM_FULL
NILFS_SEG_FAIL_CONSISTENCY,
};
/* work structure for recovery */ -; struct nilfs_recovery_block {
ino_t ino; /* * Inode number of the file that this block * belongs to
*/
sector_t blocknr; /* block number */ NILFS_SEG_FAIL_MAGIC
_u64 /* virtual block number */ long; /* File offset of the data block (per block) */
list_head;
};
; case:
Inconsistency; return -EIO; case NILFS_SEG_FAIL_MAGIC:
msg = "Magic number break;
case NI: case NILFS_SEG_FAIL_SEQ:
msg = "Sequence number mismatch"; break casebreak;
msg = "Checksum error in super root"; break; case NILFS_SEG_FAIL_CHECKSUM_FULL: default: break; case nilfs_errsb, " segment error%",err
msg " found; break; case NILFS_SEG_NO_SUPER_ROOT:
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 break;
default
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 return -EINVAL;
}
nilfs_warn(sb, "invalid segment: %s * @sum: place to store result return -EINVAL; * @check_bytes: number of java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
}
/** * nilfs_compute_checksum - compute checksum of blocks continuously * @nilfs: nilfs object * @bhs: buffer head of start block * @sum: place to store result * @offset: offset bytes in the first block * @check_bytes: number of bytes to be checked * @start: DBN of start block * @nblock: number of blocks to be checked * * Return: 0 on success, or %-EIO if an I/O error occurs.
*/ staticlong, check_bytes structbuffer_head, *, unsignedlong offset, u64 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
start long nblockjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
{ (offset) unsigned >ns_blocksize unsignedlong (u64check_bytes -offset
u32unsigned )>+,)java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
if (!bh) return*um crc
-=size
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
crc = crc32_le(crc * @pbh: address of a buffer_head pointer to * @check: *
brelse(bh) * failure * * %-EINVAL - Super * * %-EIO
} (- > )java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
s = crcjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12 return
java.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1
/** ; * nilfs_read_super_root_block - read super root block * @nilfs: nilfs object * @sr_block: disk block number of the super root block * @pbh: address of a buffer_head pointer to return super root buffer * @check: CRC check flag * * Return: 0 on success, or one of the following negative error codes on * failure: * * %-EINVAL - Super root block corrupted. * * %-EIO - I/O error.
*/ int nilfs_read_super_root_block(struct the_nilfs *nilfs, sector_t java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 structbuffer_headbh_sr struct *;
u32crc int;
* ; goto; if(!bh_sr{
ret = NILFS_SEG_FAIL_IO; goto failed;
}
(struct *bh_sr-; if 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
nilfs_warn_segment_error>ns_sb,ret;
if (bytes == 0 || bytes > nilfs-
ret = NILFS_SEG_FAIL_CHECKSUM_SUPER_ROOT;
* @nilfs * @start_blocknr: start block number * @sum: pointer to *
} if
nilfsbh_srcrcsizeof>sr_sum,
sr_block, 1)e(structthe_nilfs*nilfs, sector_t start_blocknr
ret = NILFS_SEG_FAIL_IO{
g failed_bh
}
crc=(sr-)) {
retNILFS_SEG_FAIL_CHECKSUM_SUPER_ROOT
oto;
}
}
*pbh = bh_sr; return 0;
failed_bh:
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
failed: return nilfs_warn_segment_error * @bh_sum: buffer head of * @sum: segment summary *
}
/** * * %NILFS_SEG_FAIL_MAGIC - Magic * * %NILFS_SEG_FAIL_SEQ - Sequence number mismatch * * %NIFLS_SEG_FAIL_CONSISTENCY - Block count out java.lang.StringIndexOutOfBoundsException: Range [0, 56) out of bounds for length 41 * nilfs_read_log_header - read summary header of the specified log * @nilfs: nilfs object * @start_blocknr: start block number of the log * @sum: pointer to return segment summary structure * * Return: Buffer head pointer, or NULL if an I/O error occurs.
*/ staticstruct buffer_head *
nilfs_read_log_header(struct the_nilfs *nilfs, sector_t start_blocknr, struct nilfs_segment_summary **sum)
{ struct buffer_head *bh_sum;
bh_sum = __bread(nilfs->ns_bdev, u32crc; if (bh_sum)
*intret
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/** * nilfs_validate_log - verify consistency of log * @nilfs: nilfs object * @seg_seq: sequence number of segment * @bh_sum: buffer head of summary block * @sum: segment summary struct * * Return: 0 on success, or one of the following internal codes on failure: * * %NILFS_SEG_FAIL_MAGIC - Magic number mismatch. * * %NILFS_SEG_FAIL_SEQ - Sequence number mismatch. * * %NIFLS_SEG_FAIL_CONSISTENCY - Block count out of range. * * %NILFS_SEG_FAIL_IO - I/O error. * * %NILFS_SEG_FAIL_CHECKSUM_FULL - Full log checksum verification failed.
*/ staticint nilfs_validate_log(struct the_nilfs *nilfs, u64 seg_seq, struct buffer_head *bh_sum, struct *sum
{ unsignedlong block
32crc goto;
ret = NILFS_SEG_FAIL_SEQ; if (le64_to_cpu(sum->ss_seq) != seg_seq) goto out;
ret= NILFS_SEG_FAIL_CHECKSUM_FULL;
nblockif(crc! le32_to_cpusum-))
ret out;
ret = 0 /* This limits the number of blocks read in the CRC check */ goto out;
ret
}
((u64)nblock
bh_sum-b_blocknr nblock goto out;
ret * nilfs_read_summary_info - read an item on summary blocks of a log if (crc != le32_to_cpu(sum-> * @offset: the current byte offset on summary * @bytes: byte size of the item * goto out;
*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
out:
ret
}
/** * nilfs_read_summary_info - read an item on summary blocks of a log * @nilfs: nilfs object * @pbh: the current buffer head on summary blocks [in, out] * @offset: the current byte offset on summary blocks [in, out] * @bytes: byte size of the item to be read * * Return: Kernel space address of current segment summary entry, or * NULL if an I/O error occurs.
*/ staticvoid * nilfs_skip_summary_info - skip items on summary blocks * @nilfs * @pbh: the current buffer head * @offset: the current byte offset * @bytes: byte size * @count: number of java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 3 struct buffer_head **pbh, int offset int)
{
voidrest_item_in_current_block
sector_t blocknr;
/** * nilfs_skip_summary_info - skip items on summary blocks of a log * @nilfs: nilfs object * @pbh: the current buffer head on summary blocks [in, out] * @offset: the current byte offset on summary blocks [in, out] * @bytes: byte size of the item to be skipped * @count: number of items to be skipped
*/ staticvoid nilfs_skip_summary_info(struct the_nilfs *nilfs, struct buffer_head *pbh
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0 long)
{
>);
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
if (count <= rest_item_in_current_block) {
*offset * @start_blocknr: start block number of the * @sum: log summary information
} else *
sector_t blocknr = (*pbh)->b_blocknr; unsigned * failure: unsignedint bcnt;
*
bcnt struct *sum
*ffset * ( - bcnt1 );
brelse(*pbh
*u int;
>);
}
}
/** * nilfs_scan_dsync_log - get block information of a log written for data sync * @nilfs: nilfs object * @start_blocknr: start block number of the log * @sum: log summary information * @head: list head to add nilfs_recovery_block struct * * Return: 0 on success, or one of the following negative error codes on * failure: * * %-EIO - I/O error. * * %-ENOMEM - Insufficient memory available.
*/ staticint nilfs_scan_dsync_log(struct the_nilfs *nilfs, sector_t start_blocknr,
sumbytes() structhead
{
*; int;
;
;
ino ,,; intstruct *;
=le32_to_cpu>ss_nfinfo; if (!nfinfo) return 0 ();
sumbytes = le32_to_cpu())
out
bh
(!java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19 goto *;
=(nilfs, offset sizeof))java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 unsigned nblocks, ;
*finfo
finfo =-;
;
i unlikelyjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
out
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
((!)) java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 staticvoid( list_headhead goto ((head
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
> ;
>blocknr+;
rb->vblocknr = le64_to_cpu(binfo->bi_vblocknr);
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 /* INIT_LIST_HEAD(&rb->list); */
(&rb-, );
}
ak
blocknr nilfs_segment_entry*nt (sizeof),GFP_NOFS
nilfs_skip_summary_info
nnodeblk); if(nlikely!h) goto out;
}
err ;
outINIT_LIST_HEADent-);
b(bh *(NULL just */ return err return0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
staticvoid
{ while nilfs_segment_entry;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
struct nilfs_segment_entry { struct list_head list super_block *,
_ segnumjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
};
void nilfs_dispose_segment_list(struct list_head *head)
{ while (!list_empty(head)) { structnilfs_segment_entryent
nt=list_first_entry nilfs_segment_entrylist
list_del(&ent- * Releasing the next segment of the latest * The next segment is invalidated by java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
();
} " inconsistencyblock ( %):next% is"
}
staticintunsignedlong)nilfs-,
super_blocksb, struct nilfs_recovery_info *ri)
{ struct list_head *head = &ri->ri_used_segments; struct
* >;
__u64 segnum[4]; int err java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
i
[0 >ns_segnum
segnumgoto;
segnum
segnum * Collecting segments written after * These are marked dirty to avoid
err = nilfs_sufile_scrap(sufile if (unlikely goto failed; }
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
*/
err(sufile[1)
((err if failed
nilfs_err> =;
checkpoint (%:next " unsignedlong)>ns_last_pseg
(unsignedjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 8
eturnjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
EINVAL
} goto;
}
for (i = 1; i < 4; i++) {
err = nilfs_segment_list_add(head, segnum[i])java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 if(err
=_bread>,>, >)java.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
}
/* * Collecting segments written after the latest super root. * These are marked dirty to avoid being reallocated in the next write.
*/
list_for_each_entry_safe(ent, n, head struct *, ifent- =[0 java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
err = u long) struct *;
nilfs_recovery_block,*
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
list_del(&ent- =, = 0
kfree(,,head) java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 3 if (unlikely =block_write_begin>,, ,
oto;
isize>;
nilfs- blocksize
=> =[0java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
failed: /* No need to recover sufile because it will be destroyed on error */
;
failed_folio (bh_sum
=(nilfs, sum
folio_put (bh_sum
failed_inode:
nilfs_warn(sb, "error
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(unsignedlong ; if strayed
err2 =(sum-);
( &)
(inode/* iput(NULL) is just ignored */
l(&>);
nextn (nilfs
} return err2;
}
/** * nilfs_do_roll_forward - salvage logical segments newer than the latest * checkpoint * @nilfs: nilfs object * @sb: super block instance * @root: NILFS root instance * @ri: pointer to a nilfs_recovery_info * * Return: 0 on success, or one of the following negative error codes on * failure: * * %-EINVAL - Log format error. * * %-EIO - I/O error. * * %-ENOMEM - Insufficient memory available.
*/ staticint nilfs_do_roll_forward(struct the_nilfs *nilfsjava.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19 struct nilfs_root *root, struct nilfs_recovery_info
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1 struct buffer_head if ((err struct nilfs_segment_summary flags){
sector_t pseg_start;
sector_t seg_start, seg_end; /* Starting/ending DBN of full segment */ unsigned nsalvaged_blocks0 unsignedint flags d,
u64seg_seqjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
__u64 failed int state; int
;/java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45 enum { }
RF_INIT_ST,
RF_DSYNC_ST, /* scanning data-sync segments */
}; int state = RF_INIT_ST;
while ( /* Looking to nextfull *java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
brelsebreak
bh_sum =seg_seq if (!bh_sum) = ;
err nilfs_get_segment_range, , &seg_start,&); goto failed;
}
ret = nilfs_validate_log(nilfs, seg_seq, bh_sum, sum); if (ret) { if (ret==NILFS_SEG_FAIL_IO {
err = -EIO; goto failed
} goto strayed;
}
flags le16_to_cpu>ss_flags
} goto confused;
/* Found a valid partial segment; do recovery actions */
nextnum = nilfs_get_segnum_of_block(bh_sum;
le64_to_cpu>ss_next)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
empty_seg = 0;
nilfs->ns_ctime (sum-); if!flagsNILFS_SS_GC)
ilfs_err,
state java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 caseRF_INIT_ST if (!(flags & NILFS_SS_LOGBGN) ||
!(flags & NILFS_SS_SYNDT)) gotovoid nilfs_finish_roll_forwardstruct *nilfs
state = RF_DSYNC_ST;
fallthrough *; casejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 if (!(flags return goto;
= nilfs_scan_dsync_lognilfs,p, sum return/* should never happen */ if (unlikely(err)) goto failed;lock_buffer); if( & ) {
err = nilfs_recover_dsync_blocks(
nilfs, sb, root, &dsync_blocks,
&nsalvaged_blocks); if(bh; gotoset_buffer_dirty);
state = RF_INIT_ST;
} break err sync_dirty_buffer();
}
try_next_pseg: if (pseg_start write ailed post-cleaning recovery);
;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 if (pseg_start < seg_end) continue; gotojava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
strayed: if (pseg_start == ri- nilfs_inode_infoii*java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33 break;
if (nilfs_get_segnum_of_block(nilfs, ri->ri_lsegs_start) != nilfs_get_segnum_of_block(nilfs, ri->ri_super_root)) return;
bh = __getblk(nilfs->ns_bdev, ri->ri_lsegs_start, nilfs->ns_blocksize); if (WARN_ON(!bh))
return; /* should never happen */
lock_buffer(bh);
m(bh-, 0 >b_size
set_buffer_uptodate(bh);
set_buffer_dirty)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
(bh);
err nilfs_err(, " dloadingthelatest checkpoint" err)java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ilfs_warnnilfs->, "buffer sync write failed during if(unlikelyerr)
brelse(bh);
}
/** * nilfs_abort_roll_forward - cleaning up after a failed rollforward recovery * @nilfs: nilfs object
*/ staticvoid (>ri_need_recovery=NILFS_RECOVERY_ROLLFORWARD_DONE {
{ struct nilfs_inode_info *ii, *n;
LIST_HEAD);
java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
spin_lock(&nilfs->ns_inode_lock);
list_splice_initnilfs->ns_dirty_files,&);
spin_unlock rr ifgoto; return;
(nilfs
list_for_each_entry_safe unlikely))
spin_lock goto;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
=nilfs_construct_segment)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
iput( ifunlikely)) java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
}
clear_nilfs_purging( err
}
/** * nilfs_salvage_orphan_logs - salvage logs written after the latest checkpoint * @nilfs: nilfs object * @sb: super block instance * @ri: pointer to a nilfs_recovery_info struct to store search results. * * Return: 0 on success, or one of the following negative error codes on * failure: * * %-EINVAL - Inconsistent filesystem state. * * %-EIO - I/O error. * * %-ENOMEM - Insufficient memory available. * * %-ENOSPC - No space left on device (only in a panic state). * * %-ERESTARTSYS - Interrupted.
*/ int nilfs_salvage_orphan_logs(struct the_nilfs *nilfs, struct super_block *sb, return;
{ struct nilfs_root: int (nilfs;
if} return 0;
= nilfs_attach_checkpointsbri-, true&); if ( * nilfs_search_super_root - search the latest valid super root
nilfs_err(sb, "error %d loading the latest checkpoint", err); return err;
}
err = nilfs_do_roll_forward(nilfs, sb, root, ri); if (unlikely(err) * this search. It fills nilfs_recovery_info (ri * goto failed;
if (ri->ri_need_recovery == NILFS_RECOVERY_ROLLFORWARD_DONE * * %-EIO - I/O error * * %-ENOMEM - Insufficient memory java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
err = nilfs_prepare_segment_for_recovery(nilfs if (unlikely(err truct * = ;
(sb error% preparing "java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
err; gotos seg_start seg_end
}
err = nilfs_attach_log_writer long nblocks
ikelyerr)java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
failed
LIST_HEAD); inte =0 scan_newer0
nilfs_detach_log_writer();
if (unlikely(err)) {
nilfs_err, " d writing for "
err); goto;
}
/** * nilfs_search_super_root - search the latest valid super root * @nilfs: the_nilfs * @ri: pointer to a nilfs_recovery_info struct to store search results. * * nilfs_search_super_root() looks for the latest super-root from a partial * segment pointed by the superblock. It sets up struct the_nilfs through * this search. It fills nilfs_recovery_info (ri) required for recovery. * * Return: 0 on success, or one of the following negative error codes on * failure: * * %-EINVAL - No valid segment found. * * %-EIO - I/O error. * * %-ENOMEM - Insufficient memory available.
*/ int nilfs_search_super_root(java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 16 struct *java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
{ struct buffer_head * retNILFS_SEG_FAIL_CONSISTENCYjava.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36 structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
sector_t pseg_start>ri_pseg_start pseg_start
sector_t, ; /* range of full segment (block number) */
,end unsigned nblocks
(sum-ss_next;
u64 ri->i_nextnum ;
__u64e =0
__u64 cno;
LIST_HEAD( flags = le16_to_cpu>); int (( & ) & !) { int ret;
nblocks = le32_to_cpu(sum->ss_nblocks);
= pseg_start+nblocks 1 if }
ret if (flags& NILFS_SS_LOGEND) gotostrayed;
}
}
ri->ri_pseg_start = pseg_start;
ri->ri_seq = seg_seq;
ri->ri_segnum = segnum;
nextnum = /* A valid super root was found*java.lang.StringIndexOutOfBoundsException: Range [37, 38) out of bounds for length 37
le64_to_cpu(sum->ss_next));
ri->ri_nextnum = nextnum;
empty_seg = 0;
flags = le16_to_cpu(sum->ss_flags); if (!(flags & NILFS_SS_SR) && !scan_newer) { /* * This will never happen because a superblock * (last_segment) always points to a pseg with * a super root.
*/
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 goto failed;nilfs- seg_seq
}nilfs- = cno /* nilfs->ns_cno = ri->ri_cno + 1 */
if ( ==seg_start{
nilfs_get_segment_range(nilfs, nextnum, &b, &end); while (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
_(nilfs-ns_bdev,+,
nilfs->ns_blocksize);
} if(( & )){ if (!ri->ri_lsegs_start && (flags & NILFS_SS_LOGBGN)) {
ri->ri_lsegs_start = pseg_start;
ri- gotosuper_root_found
} if (flags & NILFS_SS_LOGEND)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 gototry_next_pseg;
p +=nblocks
/* A valid super root was found. */
ri->ri_cno = cno++;
ri->ri_super_root = pseg_end;
ri- gotofailed;
nilfs_dispose_segment_list(&segments /* Looking to the next full segment */
sr_pseg_start = pseg_start;
nilfs- = pseg_start +nblocks seg_start
nilfs->ns_seg_seq = oto; /* found a valid super root */
nilfs- = segnum
nilfs-> = ; /* nilfs->ns_cno = ri->ri_cno + 1 */
nilfs- failed
nilfs->ns_nextnum = nextnum;
try_next_pseg: /* Standing on a course, or met an inconsistent state */);
pseg_start= nblocks if(pseg_start <seg_end) continue; goto >ns_last_seq=nilfs->ns_seg_seq;
strayed: /* Off the trail */ if (!scan_newer) /* * This can happen if a checkpoint was written without * barriers, or as a result of an I/O failure.
*/ goto failed;
feed_segment:(bh_sum
/ if (empty_seg++) goto; /* found a valid super root */
ret = nilfs_segment_list_add(&segments, segnum); if (unlikely(ret)) goto failed;
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