From: Christoph Hellwig Date: Tue, 23 Mar 2010 00:47:38 +0000 (+1100) Subject: xfs: clean up xlog_write_adv_cnt X-Git-Tag: v2.6.35-rc2~3^2^2~66 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e6b1f27370fc67ac9868b2dbe2c22bc26952900e;p=profile%2Fivi%2Fkernel-x86-ivi.git xfs: clean up xlog_write_adv_cnt Replace the awkward xlog_write_adv_cnt with an inline helper that makes it more obvious that it's modifying it's paramters, and replace the use of an integer type for "ptr" with a real void pointer. Also move xlog_write_adv_cnt to xfs_log_priv.h as it will be used outside of xfs_log.c in the delayed logging series. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner --- diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 2e6f3b8..9edbd67 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -44,11 +44,6 @@ kmem_zone_t *xfs_log_ticket_zone; -#define xlog_write_adv_cnt(ptr, len, off, bytes) \ - { (ptr) += (bytes); \ - (len) -= (bytes); \ - (off) += (bytes);} - /* Local miscellaneous function prototypes */ STATIC int xlog_commit_record(struct log *log, struct xlog_ticket *ticket, xlog_in_core_t **, xfs_lsn_t *); @@ -100,7 +95,7 @@ STATIC xlog_ticket_t *xlog_ticket_alloc(xlog_t *log, uint flags); #if defined(DEBUG) -STATIC void xlog_verify_dest_ptr(xlog_t *log, __psint_t ptr); +STATIC void xlog_verify_dest_ptr(xlog_t *log, char *ptr); STATIC void xlog_verify_grant_head(xlog_t *log, int equals); STATIC void xlog_verify_iclog(xlog_t *log, xlog_in_core_t *iclog, int count, boolean_t syncing); @@ -1683,11 +1678,9 @@ xlog_write_calc_vec_length( */ static int xlog_write_start_rec( - __psint_t ptr, + struct xlog_op_header *ophdr, struct xlog_ticket *ticket) { - struct xlog_op_header *ophdr = (struct xlog_op_header *)ptr; - if (!(ticket->t_flags & XLOG_TIC_INITED)) return 0; @@ -1705,12 +1698,10 @@ xlog_write_start_rec( static xlog_op_header_t * xlog_write_setup_ophdr( struct log *log, - __psint_t ptr, + struct xlog_op_header *ophdr, struct xlog_ticket *ticket, uint flags) { - struct xlog_op_header *ophdr = (struct xlog_op_header *)ptr; - ophdr->oh_tid = cpu_to_be32(ticket->t_tid); ophdr->oh_clientid = ticket->t_clientid; ophdr->oh_res2 = 0; @@ -1917,7 +1908,7 @@ xlog_write( lv = log_vector; vecp = lv->lv_iovecp; while (lv && index < lv->lv_niovecs) { - __psint_t ptr; + void *ptr; int log_offset; error = xlog_state_get_iclog_space(log, len, &iclog, ticket, @@ -1926,7 +1917,7 @@ xlog_write( return error; ASSERT(log_offset <= iclog->ic_size - 1); - ptr = (__psint_t)((char *)iclog->ic_datap + log_offset); + ptr = iclog->ic_datap + log_offset; /* start_lsn is the first lsn written to. That's all we need. */ if (!*start_lsn) @@ -1944,12 +1935,12 @@ xlog_write( int copy_off; ASSERT(reg->i_len % sizeof(__int32_t) == 0); - ASSERT((__psint_t)ptr % sizeof(__int32_t) == 0); + ASSERT((unsigned long)ptr % sizeof(__int32_t) == 0); start_rec_copy = xlog_write_start_rec(ptr, ticket); if (start_rec_copy) { record_cnt++; - xlog_write_adv_cnt(ptr, len, log_offset, + xlog_write_adv_cnt(&ptr, &len, &log_offset, start_rec_copy); } @@ -1957,7 +1948,7 @@ xlog_write( if (!ophdr) return XFS_ERROR(EIO); - xlog_write_adv_cnt(ptr, len, log_offset, + xlog_write_adv_cnt(&ptr, &len, &log_offset, sizeof(struct xlog_op_header)); len += xlog_write_setup_copy(ticket, ophdr, @@ -1970,9 +1961,8 @@ xlog_write( /* copy region */ ASSERT(copy_len >= 0); - memcpy((xfs_caddr_t)ptr, reg->i_addr + copy_off, - copy_len); - xlog_write_adv_cnt(ptr, len, log_offset, copy_len); + memcpy(ptr, reg->i_addr + copy_off, copy_len); + xlog_write_adv_cnt(&ptr, &len, &log_offset, copy_len); copy_len += start_rec_copy + sizeof(xlog_op_header_t); record_cnt++; @@ -3454,20 +3444,22 @@ xlog_ticket_alloc( * part of the log in case we trash the log structure. */ void -xlog_verify_dest_ptr(xlog_t *log, - __psint_t ptr) +xlog_verify_dest_ptr( + struct log *log, + char *ptr) { int i; int good_ptr = 0; - for (i=0; i < log->l_iclog_bufs; i++) { - if (ptr >= (__psint_t)log->l_iclog_bak[i] && - ptr <= (__psint_t)log->l_iclog_bak[i]+log->l_iclog_size) + for (i = 0; i < log->l_iclog_bufs; i++) { + if (ptr >= log->l_iclog_bak[i] && + ptr <= log->l_iclog_bak[i] + log->l_iclog_size) good_ptr++; } - if (! good_ptr) + + if (!good_ptr) xlog_panic("xlog_verify_dest_ptr: invalid ptr"); -} /* xlog_verify_dest_ptr */ +} STATIC void xlog_verify_grant_head(xlog_t *log, int equals) diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index fd02a18..2f2b5ca 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -449,6 +449,14 @@ extern void xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog, int); extern kmem_zone_t *xfs_log_ticket_zone; +static inline void +xlog_write_adv_cnt(void **ptr, int *len, int *off, size_t bytes) +{ + *ptr += bytes; + *len -= bytes; + *off += bytes; +} + /* * Unmount record type is used as a pseudo transaction type for the ticket. * It's value must be outside the range of XFS_TRANS_* values.