Hi, Andy Price is right; this is a much better way to manage this. Here is the revised patch:
Every caller of function gfs2_struct2blk specified sizeof(u64). This patch eliminates the unnecessary parameter and replaces the size calculation with a new superblock variable that is computed to be the maximum number of block pointers we can fit inside a log descriptor, as is done for pointers per dinode and indirect block. Signed-off-by: Bob Peterson <[email protected]> --- fs/gfs2/glops.c | 2 +- fs/gfs2/incore.h | 1 + fs/gfs2/log.c | 12 ++++-------- fs/gfs2/log.h | 4 ++-- fs/gfs2/lops.c | 2 +- fs/gfs2/ops_fstype.c | 2 ++ fs/gfs2/trans.c | 3 +-- 7 files changed, 12 insertions(+), 14 deletions(-) diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index 4ede1f18de85..061d22e1ceb6 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -95,7 +95,7 @@ static void gfs2_ail_empty_gl(struct gfs2_glock *gl) /* A shortened, inline version of gfs2_trans_begin() * tr->alloced is not set since the transaction structure is * on the stack */ - tr.tr_reserved = 1 + gfs2_struct2blk(sdp, tr.tr_revokes, sizeof(u64)); + tr.tr_reserved = 1 + gfs2_struct2blk(sdp, tr.tr_revokes); tr.tr_ip = _RET_IP_; if (gfs2_log_reserve(sdp, tr.tr_reserved) < 0) return; diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index 5f89c515f5bb..b5d9c11f4901 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -703,6 +703,7 @@ struct gfs2_sbd { u32 sd_fsb2bb_shift; u32 sd_diptrs; /* Number of pointers in a dinode */ u32 sd_inptrs; /* Number of pointers in a indirect block */ + u32 sd_ldptrs; /* Number of pointers in a log descriptor block */ u32 sd_jbsize; /* Size of a journaled data block */ u32 sd_hash_bsize; /* sizeof(exhash block) */ u32 sd_hash_bsize_shift; diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index eb3f2e7b8085..66189ae62c1d 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -37,7 +37,6 @@ static void gfs2_log_shutdown(struct gfs2_sbd *sdp); * gfs2_struct2blk - compute stuff * @sdp: the filesystem * @nstruct: the number of structures - * @ssize: the size of the structures * * Compute the number of log descriptor blocks needed to hold a certain number * of structures of a certain size. @@ -45,18 +44,16 @@ static void gfs2_log_shutdown(struct gfs2_sbd *sdp); * Returns: the number of blocks needed (minimum is always 1) */ -unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct, - unsigned int ssize) +unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct) { unsigned int blks; unsigned int first, second; blks = 1; - first = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_log_descriptor)) / ssize; + first = sdp->sd_ldptrs; if (nstruct > first) { - second = (sdp->sd_sb.sb_bsize - - sizeof(struct gfs2_meta_header)) / ssize; + second = sdp->sd_inptrs; blks += DIV_ROUND_UP(nstruct - first, second); } @@ -473,8 +470,7 @@ static unsigned int calc_reserved(struct gfs2_sbd *sdp) } if (sdp->sd_log_commited_revoke > 0) - reserved += gfs2_struct2blk(sdp, sdp->sd_log_commited_revoke, - sizeof(u64)); + reserved += gfs2_struct2blk(sdp, sdp->sd_log_commited_revoke); /* One for the overall header */ if (reserved) reserved++; diff --git a/fs/gfs2/log.h b/fs/gfs2/log.h index 2ff163a8dce1..c0a65e5a126b 100644 --- a/fs/gfs2/log.h +++ b/fs/gfs2/log.h @@ -60,9 +60,9 @@ static inline void gfs2_ordered_add_inode(struct gfs2_inode *ip) spin_unlock(&sdp->sd_ordered_lock); } } + extern void gfs2_ordered_del_inode(struct gfs2_inode *ip); -extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct, - unsigned int ssize); +extern unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct); extern void gfs2_log_release(struct gfs2_sbd *sdp, unsigned int blks); extern int gfs2_log_reserve(struct gfs2_sbd *sdp, unsigned int blks); diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index 12696133618c..3200a6b82487 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -866,7 +866,7 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr) if (!sdp->sd_log_num_revoke) return; - length = gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, sizeof(u64)); + length = gfs2_struct2blk(sdp, sdp->sd_log_num_revoke); page = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE, length, sdp->sd_log_num_revoke); offset = sizeof(struct gfs2_log_descriptor); diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index e8b7b0ce8404..b3e904bcc02c 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -298,6 +298,8 @@ static int gfs2_read_sb(struct gfs2_sbd *sdp, int silent) sizeof(struct gfs2_dinode)) / sizeof(u64); sdp->sd_inptrs = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header)) / sizeof(u64); + sdp->sd_ldptrs = (sdp->sd_sb.sb_bsize - + sizeof(struct gfs2_log_descriptor)) / sizeof(u64); sdp->sd_jbsize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header); sdp->sd_hash_bsize = sdp->sd_sb.sb_bsize / 2; sdp->sd_hash_bsize_shift = sdp->sd_sb.sb_bsize_shift - 1; diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c index 9d4227330de4..4d01fe19c125 100644 --- a/fs/gfs2/trans.c +++ b/fs/gfs2/trans.c @@ -49,8 +49,7 @@ int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks, if (blocks) tr->tr_reserved += 6 + blocks; if (revokes) - tr->tr_reserved += gfs2_struct2blk(sdp, revokes, - sizeof(u64)); + tr->tr_reserved += gfs2_struct2blk(sdp, revokes); INIT_LIST_HEAD(&tr->tr_databuf); INIT_LIST_HEAD(&tr->tr_buf);
