diff options
Diffstat (limited to 'fs/gfs2/recovery.c')
| -rw-r--r-- | fs/gfs2/recovery.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c index 975f32166dfe..b6b258998bcd 100644 --- a/fs/gfs2/recovery.c +++ b/fs/gfs2/recovery.c @@ -14,6 +14,7 @@ #include <linux/buffer_head.h> #include <linux/gfs2_ondisk.h> #include <linux/crc32.h> +#include <linux/crc32c.h> #include "gfs2.h" #include "incore.h" @@ -137,7 +138,7 @@ static int get_log_header(struct gfs2_jdesc *jd, unsigned int blk, { struct gfs2_log_header *lh; struct buffer_head *bh; - u32 hash; + u32 hash, crc; int error; error = gfs2_replay_read_block(jd, blk, &bh); @@ -145,13 +146,17 @@ static int get_log_header(struct gfs2_jdesc *jd, unsigned int blk, return error; lh = (void *)bh->b_data; - hash = crc32(~0, lh, sizeof(*lh) - 4); + hash = crc32(~0, lh, LH_V1_SIZE - 4); hash = ~crc32_le_shift(hash, 4); /* assume lh_hash is zero */ + crc = crc32c(~0, (void *)lh + LH_V1_SIZE + 4, + bh->b_size - LH_V1_SIZE - 4); + error = lh->lh_header.mh_magic != cpu_to_be32(GFS2_MAGIC) || lh->lh_header.mh_type != cpu_to_be32(GFS2_METATYPE_LH) || be32_to_cpu(lh->lh_blkno) != blk || - be32_to_cpu(lh->lh_hash) != hash; + be32_to_cpu(lh->lh_hash) != hash || + (lh->lh_crc != 0 && be32_to_cpu(lh->lh_crc) != crc); brelse(bh); @@ -372,9 +377,9 @@ static void clean_journal(struct gfs2_jdesc *jd, sdp->sd_log_flush_head = head->lh_blkno; gfs2_replay_incr_blk(jd, &sdp->sd_log_flush_head); - gfs2_write_log_header(sdp, head->lh_sequence + 1, 0, - GFS2_LOG_HEAD_UNMOUNT, REQ_PREFLUSH | - REQ_FUA | REQ_META | REQ_SYNC); + gfs2_write_log_header(sdp, jd, head->lh_sequence + 1, 0, + GFS2_LOG_HEAD_UNMOUNT | GFS2_LOG_HEAD_RECOVERY, + REQ_PREFLUSH | REQ_FUA | REQ_META | REQ_SYNC); } |