diff options
| -rw-r--r-- | fs/xfs/xfs_log.c | 12 | ||||
| -rw-r--r-- | fs/xfs/xfs_log_priv.h | 46 | ||||
| -rw-r--r-- | fs/xfs/xfs_log_recover.c | 7 |
3 files changed, 19 insertions, 46 deletions
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 8a5b05536a28..aadaa1472f69 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -1029,12 +1029,6 @@ xlog_iodone(xfs_buf_t *bp) ASSERT(XFS_BUF_FSPRIVATE2(bp, unsigned long) == (unsigned long) 2); XFS_BUF_SET_FSPRIVATE2(bp, (unsigned long)1); aborted = 0; - - /* - * Some versions of cpp barf on the recursive definition of - * ic_log -> hic_fields.ic_log and expand ic_log twice when - * it is passed through two macros. Workaround broken cpp. - */ l = iclog->ic_log; /* @@ -1301,7 +1295,7 @@ xlog_alloc_log(xfs_mount_t *mp, XFS_BUF_SET_BDSTRAT_FUNC(bp, xlog_bdstrat_cb); XFS_BUF_SET_FSPRIVATE2(bp, (unsigned long)1); iclog->ic_bp = bp; - iclog->hic_data = bp->b_addr; + iclog->ic_data = bp->b_addr; #ifdef DEBUG log->l_iclog_bak[i] = (xfs_caddr_t)&(iclog->ic_header); #endif @@ -1321,7 +1315,7 @@ xlog_alloc_log(xfs_mount_t *mp, atomic_set(&iclog->ic_refcnt, 0); spin_lock_init(&iclog->ic_callback_lock); iclog->ic_callback_tail = &(iclog->ic_callback); - iclog->ic_datap = (char *)iclog->hic_data + log->l_iclog_hsize; + iclog->ic_datap = (char *)iclog->ic_data + log->l_iclog_hsize; ASSERT(XFS_BUF_ISBUSY(iclog->ic_bp)); ASSERT(XFS_BUF_VALUSEMA(iclog->ic_bp) <= 0); @@ -3463,7 +3457,7 @@ xlog_verify_iclog(xlog_t *log, ptr = iclog->ic_datap; base_ptr = ptr; ophead = (xlog_op_header_t *)ptr; - xhdr = (xlog_in_core_2_t *)&iclog->ic_header; + xhdr = iclog->ic_data; for (i = 0; i < len; i++) { ophead = (xlog_op_header_t *)ptr; diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index b39a1980e82d..654167be0efb 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -310,6 +310,16 @@ typedef struct xlog_rec_ext_header { } xlog_rec_ext_header_t; #ifdef __KERNEL__ + +/* + * Quite misnamed, because this union lays out the actual on-disk log buffer. + */ +typedef union xlog_in_core2 { + xlog_rec_header_t hic_header; + xlog_rec_ext_header_t hic_xheader; + char hic_sector[XLOG_HEADER_SIZE]; +} xlog_in_core_2_t; + /* * - A log record header is 512 bytes. There is plenty of room to grow the * xlog_rec_header_t into the reserved space. @@ -339,7 +349,7 @@ typedef struct xlog_rec_ext_header { * We'll put all the read-only and l_icloglock fields in the first cacheline, * and move everything else out to subsequent cachelines. */ -typedef struct xlog_iclog_fields { +typedef struct xlog_in_core { sv_t ic_force_wait; sv_t ic_write_wait; struct xlog_in_core *ic_next; @@ -362,41 +372,11 @@ typedef struct xlog_iclog_fields { /* reference counts need their own cacheline */ atomic_t ic_refcnt ____cacheline_aligned_in_smp; -} xlog_iclog_fields_t; - -typedef union xlog_in_core2 { - xlog_rec_header_t hic_header; - xlog_rec_ext_header_t hic_xheader; - char hic_sector[XLOG_HEADER_SIZE]; -} xlog_in_core_2_t; - -typedef struct xlog_in_core { - xlog_iclog_fields_t hic_fields; - xlog_in_core_2_t *hic_data; + xlog_in_core_2_t *ic_data; +#define ic_header ic_data->hic_header } xlog_in_core_t; /* - * Defines to save our code from this glop. - */ -#define ic_force_wait hic_fields.ic_force_wait -#define ic_write_wait hic_fields.ic_write_wait -#define ic_next hic_fields.ic_next -#define ic_prev hic_fields.ic_prev -#define ic_bp hic_fields.ic_bp -#define ic_log hic_fields.ic_log -#define ic_callback hic_fields.ic_callback -#define ic_callback_lock hic_fields.ic_callback_lock -#define ic_callback_tail hic_fields.ic_callback_tail -#define ic_trace hic_fields.ic_trace -#define ic_size hic_fields.ic_size -#define ic_offset hic_fields.ic_offset -#define ic_refcnt hic_fields.ic_refcnt -#define ic_bwritecnt hic_fields.ic_bwritecnt -#define ic_state hic_fields.ic_state -#define ic_datap hic_fields.ic_datap -#define ic_header hic_data->hic_header - -/* * The reservation head lsn is not made up of a cycle number and block number. * Instead, it uses a cycle number and byte number. Logs don't expect to * overflow 31 bits worth of byte offset, so using a byte number will mean diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index d94987915d5e..9abb96a7674d 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -3332,7 +3332,6 @@ xlog_pack_data( int size = iclog->ic_offset + roundoff; __be32 cycle_lsn; xfs_caddr_t dp; - xlog_in_core_2_t *xhdr; xlog_pack_data_checksum(log, iclog, size); @@ -3347,7 +3346,8 @@ xlog_pack_data( } if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) { - xhdr = (xlog_in_core_2_t *)&iclog->ic_header; + xlog_in_core_2_t *xhdr = iclog->ic_data; + for ( ; i < BTOBB(size); i++) { j = i / (XLOG_HEADER_CYCLE_SIZE / BBSIZE); k = i % (XLOG_HEADER_CYCLE_SIZE / BBSIZE); @@ -3405,7 +3405,6 @@ xlog_unpack_data( xlog_t *log) { int i, j, k; - xlog_in_core_2_t *xhdr; for (i = 0; i < BTOBB(be32_to_cpu(rhead->h_len)) && i < (XLOG_HEADER_CYCLE_SIZE / BBSIZE); i++) { @@ -3414,7 +3413,7 @@ xlog_unpack_data( } if (xfs_sb_version_haslogv2(&log->l_mp->m_sb)) { - xhdr = (xlog_in_core_2_t *)rhead; + xlog_in_core_2_t *xhdr = (xlog_in_core_2_t *)rhead; for ( ; i < BTOBB(be32_to_cpu(rhead->h_len)); i++) { j = i / (XLOG_HEADER_CYCLE_SIZE / BBSIZE); k = i % (XLOG_HEADER_CYCLE_SIZE / BBSIZE); |