From 63997775b795f97ef51f3e56bc3abc9edc04bbb0 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Fri, 12 Jun 2009 08:49:20 +0100 Subject: GFS2: Add tracepoints This patch adds the ability to trace various aspects of the GFS2 filesystem. The trace points are divided into three groups, glocks, logging and bmap. These points have been chosen because they allow inspection of the major internal functions of GFS2 and they are also generic enough that they are unlikely to need any major changes as the filesystem evolves. Signed-off-by: Steven Whitehouse --- fs/gfs2/rgrp.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'fs/gfs2/rgrp.c') diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c index de3239731db..daa4ae341a2 100644 --- a/fs/gfs2/rgrp.c +++ b/fs/gfs2/rgrp.c @@ -29,6 +29,7 @@ #include "util.h" #include "log.h" #include "inode.h" +#include "trace_gfs2.h" #define BFITNOENT ((u32)~0) #define NO_BLOCK ((u64)~0) @@ -1519,7 +1520,7 @@ int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n) spin_lock(&sdp->sd_rindex_spin); rgd->rd_free_clone -= *n; spin_unlock(&sdp->sd_rindex_spin); - + trace_gfs2_block_alloc(ip, block, *n, GFS2_BLKST_USED); *bn = block; return 0; @@ -1571,7 +1572,7 @@ u64 gfs2_alloc_di(struct gfs2_inode *dip, u64 *generation) spin_lock(&sdp->sd_rindex_spin); rgd->rd_free_clone--; spin_unlock(&sdp->sd_rindex_spin); - + trace_gfs2_block_alloc(dip, block, 1, GFS2_BLKST_DINODE); return block; } @@ -1591,7 +1592,7 @@ void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen) rgd = rgblk_free(sdp, bstart, blen, GFS2_BLKST_FREE); if (!rgd) return; - + trace_gfs2_block_alloc(ip, bstart, blen, GFS2_BLKST_FREE); rgd->rd_free += blen; gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1); @@ -1619,7 +1620,7 @@ void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen) rgd = rgblk_free(sdp, bstart, blen, GFS2_BLKST_FREE); if (!rgd) return; - + trace_gfs2_block_alloc(ip, bstart, blen, GFS2_BLKST_FREE); rgd->rd_free += blen; gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1); @@ -1642,6 +1643,7 @@ void gfs2_unlink_di(struct inode *inode) rgd = rgblk_free(sdp, blkno, 1, GFS2_BLKST_UNLINKED); if (!rgd) return; + trace_gfs2_block_alloc(ip, blkno, 1, GFS2_BLKST_UNLINKED); gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1); gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data); gfs2_trans_add_rg(rgd); @@ -1673,6 +1675,7 @@ static void gfs2_free_uninit_di(struct gfs2_rgrpd *rgd, u64 blkno) void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip) { gfs2_free_uninit_di(rgd, ip->i_no_addr); + trace_gfs2_block_alloc(ip, ip->i_no_addr, 1, GFS2_BLKST_FREE); gfs2_quota_change(ip, -1, ip->i_inode.i_uid, ip->i_inode.i_gid); gfs2_meta_wipe(ip, ip->i_no_addr, 1); } -- cgit v1.2.3-18-g5258