The seq_printf return value will eventually be converted to void. Convert these uses to: seq_printf(seq, ...); return seq_has_overflowed(seq); Done via cocci script: @@ struct seq_file *seq; @@ - return \(seq_printf\|seq_puts\|seq_putc\)(seq, ...); + return seq_has_overflowed(seq); With some additional reformatting and typing post conversion Miscellanea: o convert an rc++ use to a bool o use seq_puts with fixed strings where appropriate Signed-off-by: Joe Perches <joe(a)perches.com&gt; --- drivers/staging/lustre/lustre/libcfs/hash.c | 11 +-- drivers/staging/lustre/lustre/llite/lproc_llite.c | 88 ++++++++++++---------- drivers/staging/lustre/lustre/lmv/lproc_lmv.c | 18 +++-- drivers/staging/lustre/lustre/lov/lproc_lov.c | 30 +++++--- .../lustre/lustre/obdclass/linux/linux-module.c | 40 +++++----- .../lustre/lustre/obdclass/lprocfs_status.c | 26 ++++--- drivers/staging/lustre/lustre/obdclass/lu_object.c | 25 +++--- drivers/staging/lustre/lustre/osc/lproc_osc.c | 22 +++--- .../staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c | 20 +++-- 9 files changed, 164 insertions(+), 116 deletions(-) diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c index ec3a2a8..b70344b 100644 --- a/drivers/staging/lustre/lustre/libcfs/hash.c +++ b/drivers/staging/lustre/lustre/libcfs/hash.c @@ -2010,11 +2010,12 @@ EXPORT_SYMBOL(cfs_hash_rehash_key); int cfs_hash_debug_header(struct seq_file *m) { - return seq_printf(m, "%-*s%6s%6s%6s%6s%6s%6s%6s%7s%8s%8s%8s%s\n", - CFS_HASH_BIGNAME_LEN, - "name", "cur", "min", "max", "theta", "t-min", "t-max", - "flags", "rehash", "count", "maxdep", "maxdepb", - " distribution"); + seq_printf(m, "%-*s%6s%6s%6s%6s%6s%6s%6s%7s%8s%8s%8s%s\n", + CFS_HASH_BIGNAME_LEN, + "name", "cur", "min", "max", "theta", "t-min", "t-max", + "flags", "rehash", "count", "maxdep", "maxdepb", + " distribution"); + return seq_has_overflowed(m); } EXPORT_SYMBOL(cfs_hash_debug_header); diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c index aaa13bd..4d541c2 100644 --- a/drivers/staging/lustre/lustre/llite/lproc_llite.c +++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c @@ -187,7 +187,8 @@ static int ll_fstype_seq_show(struct seq_file *m, void *v) struct super_block *sb = (struct super_block *)m->private; LASSERT(sb != NULL); - return seq_printf(m, "%s\n", sb->s_type->name); + seq_printf(m, "%s\n", sb->s_type->name); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(ll_fstype); @@ -196,7 +197,8 @@ static int ll_sb_uuid_seq_show(struct seq_file *m, void *v) struct super_block *sb = (struct super_block *)m->private; LASSERT(sb != NULL); - return seq_printf(m, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid); + seq_printf(m, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(ll_sb_uuid); @@ -353,17 +355,18 @@ static int ll_max_cached_mb_seq_show(struct seq_file *m, void *v) max_cached_mb = cache->ccc_lru_max >> shift; unused_mb = atomic_read(&cache->ccc_lru_left) >> shift; - return seq_printf(m, - "users: %d\n" - "max_cached_mb: %d\n" - "used_mb: %d\n" - "unused_mb: %d\n" - "reclaim_count: %u\n", - atomic_read(&cache->ccc_users), - max_cached_mb, - max_cached_mb - unused_mb, - unused_mb, - cache->ccc_lru_shrinkers); + seq_printf(m, + "users: %d\n" + "max_cached_mb: %d\n" + "used_mb: %d\n" + "unused_mb: %d\n" + "reclaim_count: %u\n", + atomic_read(&cache->ccc_users), + max_cached_mb, + max_cached_mb - unused_mb, + unused_mb, + cache->ccc_lru_shrinkers); + return seq_has_overflowed(m); } static ssize_t ll_max_cached_mb_seq_write(struct file *file, @@ -467,7 +470,8 @@ static int ll_checksum_seq_show(struct seq_file *m, void *v) struct super_block *sb = m->private; struct ll_sb_info *sbi = ll_s2sbi(sb); - return seq_printf(m, "%u\n", (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0); + seq_printf(m, "%u\n", (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0); + return seq_has_overflowed(m); } static ssize_t ll_checksum_seq_write(struct file *file, @@ -503,7 +507,8 @@ static int ll_max_rw_chunk_seq_show(struct seq_file *m, void *v) { struct super_block *sb = m->private; - return seq_printf(m, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk); + seq_printf(m, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk); + return seq_has_overflowed(m); } static ssize_t ll_max_rw_chunk_seq_write(struct file *file, @@ -525,15 +530,14 @@ static int ll_rd_track_id(struct seq_file *m, enum stats_track_type type) { struct super_block *sb = m->private; - if (ll_s2sbi(sb)->ll_stats_track_type == type) { - return seq_printf(m, "%d\n", - ll_s2sbi(sb)->ll_stats_track_id); + if (ll_s2sbi(sb)->ll_stats_track_type == type) + seq_printf(m, "%d\n", ll_s2sbi(sb)->ll_stats_track_id); + else if (ll_s2sbi(sb)->ll_stats_track_type == STATS_TRACK_ALL) + seq_puts(m, "0 (all)\n"); + else + seq_puts(m, "untracked\n"); - } else if (ll_s2sbi(sb)->ll_stats_track_type == STATS_TRACK_ALL) { - return seq_printf(m, "0 (all)\n"); - } else { - return seq_printf(m, "untracked\n"); - } + return seq_has_overflowed(m); } static int ll_wr_track_id(const char __user *buffer, unsigned long count, @@ -601,7 +605,8 @@ static int ll_statahead_max_seq_show(struct seq_file *m, void *v) struct super_block *sb = m->private; struct ll_sb_info *sbi = ll_s2sbi(sb); - return seq_printf(m, "%u\n", sbi->ll_sa_max); + seq_printf(m, "%u\n", sbi->ll_sa_max); + return seq_has_overflowed(m); } static ssize_t ll_statahead_max_seq_write(struct file *file, @@ -631,8 +636,8 @@ static int ll_statahead_agl_seq_show(struct seq_file *m, void *v) struct super_block *sb = m->private; struct ll_sb_info *sbi = ll_s2sbi(sb); - return seq_printf(m, "%u\n", - sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0); + seq_printf(m, "%u\n", sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0); + return seq_has_overflowed(m); } static ssize_t ll_statahead_agl_seq_write(struct file *file, @@ -661,13 +666,14 @@ static int ll_statahead_stats_seq_show(struct seq_file *m, void *v) struct super_block *sb = m->private; struct ll_sb_info *sbi = ll_s2sbi(sb); - return seq_printf(m, - "statahead total: %u\n" - "statahead wrong: %u\n" - "agl total: %u\n", - atomic_read(&sbi->ll_sa_total), - atomic_read(&sbi->ll_sa_wrong), - atomic_read(&sbi->ll_agl_total)); + seq_printf(m, + "statahead total: %u\n" + "statahead wrong: %u\n" + "agl total: %u\n", + atomic_read(&sbi->ll_sa_total), + atomic_read(&sbi->ll_sa_wrong), + atomic_read(&sbi->ll_agl_total)); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(ll_statahead_stats); @@ -676,8 +682,8 @@ static int ll_lazystatfs_seq_show(struct seq_file *m, void *v) struct super_block *sb = m->private; struct ll_sb_info *sbi = ll_s2sbi(sb); - return seq_printf(m, "%u\n", - (sbi->ll_flags & LL_SBI_LAZYSTATFS) ? 1 : 0); + seq_printf(m, "%u\n", sbi->ll_flags & LL_SBI_LAZYSTATFS ? 1 : 0); + return seq_has_overflowed(m); } static ssize_t ll_lazystatfs_seq_write(struct file *file, @@ -712,7 +718,8 @@ static int ll_max_easize_seq_show(struct seq_file *m, void *v) if (rc) return rc; - return seq_printf(m, "%u\n", ealen); + seq_printf(m, "%u\n", ealen); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(ll_max_easize); @@ -727,7 +734,8 @@ static int ll_defult_easize_seq_show(struct seq_file *m, void *v) if (rc) return rc; - return seq_printf(m, "%u\n", ealen); + seq_printf(m, "%u\n", ealen); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(ll_defult_easize); @@ -742,7 +750,8 @@ static int ll_max_cookiesize_seq_show(struct seq_file *m, void *v) if (rc) return rc; - return seq_printf(m, "%u\n", cookielen); + seq_printf(m, "%u\n", cookielen); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(ll_max_cookiesize); @@ -757,7 +766,8 @@ static int ll_defult_cookiesize_seq_show(struct seq_file *m, void *v) if (rc) return rc; - return seq_printf(m, "%u\n", cookielen); + seq_printf(m, "%u\n", cookielen); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(ll_defult_cookiesize); diff --git a/drivers/staging/lustre/lustre/lmv/lproc_lmv.c b/drivers/staging/lustre/lustre/lmv/lproc_lmv.c index 5be4176..27390de 100644 --- a/drivers/staging/lustre/lustre/lmv/lproc_lmv.c +++ b/drivers/staging/lustre/lustre/lmv/lproc_lmv.c @@ -48,7 +48,8 @@ static int lmv_numobd_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lmv.desc; - return seq_printf(m, "%u\n", desc->ld_tgt_count); + seq_printf(m, "%u\n", desc->ld_tgt_count); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(lmv_numobd); @@ -82,7 +83,8 @@ static int lmv_placement_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); lmv = &dev->u.lmv; - return seq_printf(m, "%s\n", placement_policy2name(lmv->lmv_placement)); + seq_printf(m, "%s\n", placement_policy2name(lmv->lmv_placement)); + return seq_has_overflowed(m); } #define MAX_POLICY_STRING_SIZE 64 @@ -130,7 +132,8 @@ static int lmv_activeobd_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lmv.desc; - return seq_printf(m, "%u\n", desc->ld_active_tgt_count); + seq_printf(m, "%u\n", desc->ld_active_tgt_count); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(lmv_activeobd); @@ -141,7 +144,8 @@ static int lmv_desc_uuid_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); lmv = &dev->u.lmv; - return seq_printf(m, "%s\n", lmv->desc.ld_uuid.uuid); + seq_printf(m, "%s\n", lmv->desc.ld_uuid.uuid); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(lmv_desc_uuid); @@ -171,8 +175,10 @@ static int lmv_tgt_seq_show(struct seq_file *p, void *v) if (tgt == NULL) return 0; - return seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_idx, - tgt->ltd_uuid.uuid, tgt->ltd_active ? "" : "IN"); + seq_printf(p, "%d: %s %sACTIVE\n", + tgt->ltd_idx, tgt->ltd_uuid.uuid, + tgt->ltd_active ? "" : "IN"); + return seq_has_overflowed(p); } static struct seq_operations lmv_tgt_sops = { diff --git a/drivers/staging/lustre/lustre/lov/lproc_lov.c b/drivers/staging/lustre/lustre/lov/lproc_lov.c index c99f2f4..2a06070 100644 --- a/drivers/staging/lustre/lustre/lov/lproc_lov.c +++ b/drivers/staging/lustre/lustre/lov/lproc_lov.c @@ -48,7 +48,8 @@ static int lov_stripesize_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%llu\n", desc->ld_default_stripe_size); + seq_printf(m, "%llu\n", desc->ld_default_stripe_size); + return seq_has_overflowed(m); } static ssize_t lov_stripesize_seq_write(struct file *file, @@ -79,7 +80,8 @@ static int lov_stripeoffset_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%llu\n", desc->ld_default_stripe_offset); + seq_printf(m, "%llu\n", desc->ld_default_stripe_offset); + return seq_has_overflowed(m); } static ssize_t lov_stripeoffset_seq_write(struct file *file, @@ -109,7 +111,8 @@ static int lov_stripetype_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%u\n", desc->ld_pattern); + seq_printf(m, "%u\n", desc->ld_pattern); + return seq_has_overflowed(m); } static ssize_t lov_stripetype_seq_write(struct file *file, @@ -139,8 +142,8 @@ static int lov_stripecount_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%d\n", - (__s16)(desc->ld_default_stripe_count + 1) - 1); + seq_printf(m, "%d\n", (__s16)(desc->ld_default_stripe_count + 1) - 1); + return seq_has_overflowed(m); } static ssize_t lov_stripecount_seq_write(struct file *file, @@ -170,7 +173,8 @@ static int lov_numobd_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%u\n", desc->ld_tgt_count); + seq_printf(m, "%u\n", desc->ld_tgt_count); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(lov_numobd); @@ -181,7 +185,8 @@ static int lov_activeobd_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); desc = &dev->u.lov.desc; - return seq_printf(m, "%u\n", desc->ld_active_tgt_count); + seq_printf(m, "%u\n", desc->ld_active_tgt_count); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(lov_activeobd); @@ -192,7 +197,8 @@ static int lov_desc_uuid_seq_show(struct seq_file *m, void *v) LASSERT(dev != NULL); lov = &dev->u.lov; - return seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid); + seq_printf(m, "%s\n", lov->desc.ld_uuid.uuid); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(lov_desc_uuid); @@ -228,9 +234,11 @@ static void *lov_tgt_seq_next(struct seq_file *p, void *v, loff_t *pos) static int lov_tgt_seq_show(struct seq_file *p, void *v) { struct lov_tgt_desc *tgt = v; - return seq_printf(p, "%d: %s %sACTIVE\n", tgt->ltd_index, - obd_uuid2str(&tgt->ltd_uuid), - tgt->ltd_active ? "" : "IN"); + + seq_printf(p, "%d: %s %sACTIVE\n", + tgt->ltd_index, obd_uuid2str(&tgt->ltd_uuid), + tgt->ltd_active ? "" : "IN"); + return seq_has_overflowed(p); } struct seq_operations lov_tgt_sops = { diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c index b94aeac..670d4aa 100644 --- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c +++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c @@ -219,21 +219,23 @@ struct miscdevice obd_psdev = { #if defined (CONFIG_PROC_FS) int obd_proc_version_seq_show(struct seq_file *m, void *v) { - return seq_printf(m, "lustre: %s\nkernel: %s\nbuild: %s\n", - LUSTRE_VERSION_STRING, "patchless_client", - BUILD_VERSION); + seq_printf(m, "lustre: %s\nkernel: %s\nbuild: %s\n", + LUSTRE_VERSION_STRING, "patchless_client", BUILD_VERSION); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(obd_proc_version); int obd_proc_pinger_seq_show(struct seq_file *m, void *v) { - return seq_printf(m, "%s\n", "on"); + seq_printf(m, "%s\n", "on"); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(obd_proc_pinger); static int obd_proc_health_seq_show(struct seq_file *m, void *v) { - int rc = 0, i; + bool healthy = true; + int i; if (libcfs_catastrophe) seq_printf(m, "LBUG\n"); @@ -255,25 +257,27 @@ static int obd_proc_health_seq_show(struct seq_file *m, void *v) if (obd_health_check(NULL, obd)) { seq_printf(m, "device %s reported unhealthy\n", - obd->obd_name); - rc++; + obd->obd_name); + healthy = false; } class_decref(obd, __func__, current); read_lock(&obd_dev_lock); } read_unlock(&obd_dev_lock); - if (rc == 0) - return seq_printf(m, "healthy\n"); + if (healthy) + seq_puts(m, "healthy\n"); + else + seq_puts(m, "NOT HEALTHY\n"); - seq_printf(m, "NOT HEALTHY\n"); - return 0; + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(obd_proc_health); static int obd_proc_jobid_var_seq_show(struct seq_file *m, void *v) { - return seq_printf(m, "%s\n", obd_jobid_var); + seq_printf(m, "%s\n", obd_jobid_var); + return seq_has_overflowed(m); } static ssize_t obd_proc_jobid_var_seq_write(struct file *file, @@ -299,7 +303,8 @@ LPROC_SEQ_FOPS(obd_proc_jobid_var); static int obd_proc_jobid_name_seq_show(struct seq_file *m, void *v) { - return seq_printf(m, "%s\n", obd_jobid_var); + seq_printf(m, "%s\n", obd_jobid_var); + return seq_has_overflowed(m); } static ssize_t obd_proc_jobid_name_seq_write(struct file *file, @@ -378,10 +383,11 @@ static int obd_device_list_seq_show(struct seq_file *p, void *v) else status = "--"; - return seq_printf(p, "%3d %s %s %s %s %d\n", - (int)index, status, obd->obd_type->typ_name, - obd->obd_name, obd->obd_uuid.uuid, - atomic_read(&obd->obd_refcount)); + seq_printf(p, "%3d %s %s %s %s %d\n", + (int)index, status, obd->obd_type->typ_name, + obd->obd_name, obd->obd_uuid.uuid, + atomic_read(&obd->obd_refcount)); + return seq_has_overflowed(p); } struct seq_operations obd_device_list_sops = { diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c index ddab94d..9ac5faf 100644 --- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c +++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c @@ -377,7 +377,8 @@ EXPORT_SYMBOL(lprocfs_register); /* Generic callbacks */ int lprocfs_rd_uint(struct seq_file *m, void *data) { - return seq_printf(m, "%u\n", *(unsigned int *)data); + seq_printf(m, "%u\n", *(unsigned int *)data); + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_rd_uint); @@ -403,7 +404,8 @@ EXPORT_SYMBOL(lprocfs_wr_uint); int lprocfs_rd_u64(struct seq_file *m, void *data) { - return seq_printf(m, "%llu\n", *(__u64 *)data); + seq_printf(m, "%llu\n", *(__u64 *)data); + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_rd_u64); @@ -411,7 +413,8 @@ int lprocfs_rd_atomic(struct seq_file *m, void *data) { atomic_t *atom = data; LASSERT(atom != NULL); - return seq_printf(m, "%d\n", atomic_read(atom)); + seq_printf(m, "%d\n", atomic_read(atom)); + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_rd_atomic); @@ -439,7 +442,8 @@ int lprocfs_rd_uuid(struct seq_file *m, void *data) struct obd_device *obd = data; LASSERT(obd != NULL); - return seq_printf(m, "%s\n", obd->obd_uuid.uuid); + seq_printf(m, "%s\n", obd->obd_uuid.uuid); + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_rd_uuid); @@ -448,7 +452,8 @@ int lprocfs_rd_name(struct seq_file *m, void *data) struct obd_device *dev = data; LASSERT(dev != NULL); - return seq_printf(m, "%s\n", dev->obd_name); + seq_printf(m, "%s\n", dev->obd_name); + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_rd_name); @@ -924,7 +929,8 @@ int lprocfs_rd_num_exports(struct seq_file *m, void *data) struct obd_device *obd = data; LASSERT(obd != NULL); - return seq_printf(m, "%u\n", obd->obd_num_exports); + seq_printf(m, "%u\n", obd->obd_num_exports); + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_rd_num_exports); @@ -933,7 +939,8 @@ int lprocfs_rd_numrefs(struct seq_file *m, void *data) struct obd_type *class = (struct obd_type *) data; LASSERT(class != NULL); - return seq_printf(m, "%d\n", class->typ_refcnt); + seq_printf(m, "%d\n", class->typ_refcnt); + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_rd_numrefs); @@ -1606,8 +1613,9 @@ LPROC_SEQ_FOPS_RO(lproc_exp_hash); int lprocfs_nid_stats_clear_read(struct seq_file *m, void *data) { - return seq_printf(m, "%s\n", - "Write into this file to clear all nid stats and stale nid entries"); + seq_printf(m, "%s\n", + "Write into this file to clear all nid stats and stale nid entries"); + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_nid_stats_clear_read); diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c index 83bf168..3c019c4 100644 --- a/drivers/staging/lustre/lustre/obdclass/lu_object.c +++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c @@ -2014,18 +2014,19 @@ int lu_site_stats_print(const struct lu_site *s, struct seq_file *m) memset(&stats, 0, sizeof(stats)); lu_site_stats_get(s->ls_obj_hash, &stats, 1); - return seq_printf(m, "%d/%d %d/%d %d %d %d %d %d %d %d\n", - stats.lss_busy, - stats.lss_total, - stats.lss_populated, - CFS_HASH_NHLIST(s->ls_obj_hash), - stats.lss_max_search, - ls_stats_read(s->ls_stats, LU_SS_CREATED), - ls_stats_read(s->ls_stats, LU_SS_CACHE_HIT), - ls_stats_read(s->ls_stats, LU_SS_CACHE_MISS), - ls_stats_read(s->ls_stats, LU_SS_CACHE_RACE), - ls_stats_read(s->ls_stats, LU_SS_CACHE_DEATH_RACE), - ls_stats_read(s->ls_stats, LU_SS_LRU_PURGED)); + seq_printf(m, "%d/%d %d/%d %d %d %d %d %d %d %d\n", + stats.lss_busy, + stats.lss_total, + stats.lss_populated, + CFS_HASH_NHLIST(s->ls_obj_hash), + stats.lss_max_search, + ls_stats_read(s->ls_stats, LU_SS_CREATED), + ls_stats_read(s->ls_stats, LU_SS_CACHE_HIT), + ls_stats_read(s->ls_stats, LU_SS_CACHE_MISS), + ls_stats_read(s->ls_stats, LU_SS_CACHE_RACE), + ls_stats_read(s->ls_stats, LU_SS_CACHE_DEATH_RACE), + ls_stats_read(s->ls_stats, LU_SS_LRU_PURGED)); + return seq_has_overflowed(m); } EXPORT_SYMBOL(lu_site_stats_print); diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c index 1795d3a..a922b6c 100644 --- a/drivers/staging/lustre/lustre/osc/lproc_osc.c +++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c @@ -289,8 +289,8 @@ static int osc_grant_shrink_interval_seq_show(struct seq_file *m, void *v) if (obd == NULL) return 0; - return seq_printf(m, "%d\n", - obd->u.cli.cl_grant_shrink_interval); + seq_printf(m, "%d\n", obd->u.cli.cl_grant_shrink_interval); + return seq_has_overflowed(m); } static ssize_t osc_grant_shrink_interval_seq_write(struct file *file, @@ -323,8 +323,8 @@ static int osc_checksum_seq_show(struct seq_file *m, void *v) if (obd == NULL) return 0; - return seq_printf(m, "%d\n", - obd->u.cli.cl_checksum ? 1 : 0); + seq_printf(m, "%d\n", obd->u.cli.cl_checksum ? 1 : 0); + return seq_has_overflowed(m); } static ssize_t osc_checksum_seq_write(struct file *file, @@ -405,7 +405,8 @@ static int osc_resend_count_seq_show(struct seq_file *m, void *v) { struct obd_device *obd = m->private; - return seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_resends)); + seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_resends)); + return seq_has_overflowed(m); } static ssize_t osc_resend_count_seq_write(struct file *file, @@ -433,7 +434,8 @@ static int osc_contention_seconds_seq_show(struct seq_file *m, void *v) struct obd_device *obd = m->private; struct osc_device *od = obd2osc_dev(obd); - return seq_printf(m, "%u\n", od->od_contention_time); + seq_printf(m, "%u\n", od->od_contention_time); + return seq_has_overflowed(m); } static ssize_t osc_contention_seconds_seq_write(struct file *file, @@ -453,7 +455,8 @@ static int osc_lockless_truncate_seq_show(struct seq_file *m, void *v) struct obd_device *obd = m->private; struct osc_device *od = obd2osc_dev(obd); - return seq_printf(m, "%u\n", od->od_lockless_truncate); + seq_printf(m, "%u\n", od->od_lockless_truncate); + return seq_has_overflowed(m); } static ssize_t osc_lockless_truncate_seq_write(struct file *file, @@ -471,8 +474,9 @@ LPROC_SEQ_FOPS(osc_lockless_truncate); static int osc_destroys_in_flight_seq_show(struct seq_file *m, void *v) { struct obd_device *obd = m->private; - return seq_printf(m, "%u\n", - atomic_read(&obd->u.cli.cl_destroy_in_flight)); + + seq_printf(m, "%u\n", atomic_read(&obd->u.cli.cl_destroy_in_flight)); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(osc_destroys_in_flight); diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c index 0e2071b..505b21b 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c +++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c @@ -267,7 +267,8 @@ ptlrpc_lprocfs_req_history_len_seq_show(struct seq_file *m, void *v) ptlrpc_service_for_each_part(svcpt, i, svc) total += svcpt->scp_hist_nrqbds; - return seq_printf(m, "%d\n", total); + seq_printf(m, "%d\n", total); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(ptlrpc_lprocfs_req_history_len); @@ -282,7 +283,8 @@ ptlrpc_lprocfs_req_history_max_seq_show(struct seq_file *m, void *n) ptlrpc_service_for_each_part(svcpt, i, svc) total += svc->srv_hist_nrqbds_cpt_max; - return seq_printf(m, "%d\n", total); + seq_printf(m, "%d\n", total); + return seq_has_overflowed(m); } static ssize_t @@ -327,8 +329,8 @@ ptlrpc_lprocfs_threads_min_seq_show(struct seq_file *m, void *n) { struct ptlrpc_service *svc = m->private; - return seq_printf(m, "%d\n", - svc->srv_nthrs_cpt_init * svc->srv_ncpts); + seq_printf(m, "%d\n", svc->srv_nthrs_cpt_init * svc->srv_ncpts); + return seq_has_overflowed(m); } static ssize_t @@ -371,7 +373,8 @@ ptlrpc_lprocfs_threads_started_seq_show(struct seq_file *m, void *n) ptlrpc_service_for_each_part(svcpt, i, svc) total += svcpt->scp_nthrs_running; - return seq_printf(m, "%d\n", total); + seq_printf(m, "%d\n", total); + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(ptlrpc_lprocfs_threads_started); @@ -380,8 +383,8 @@ ptlrpc_lprocfs_threads_max_seq_show(struct seq_file *m, void *n) { struct ptlrpc_service *svc = m->private; - return seq_printf(m, "%d\n", - svc->srv_nthrs_cpt_limit * svc->srv_ncpts); + seq_printf(m, "%d\n", svc->srv_nthrs_cpt_limit * svc->srv_ncpts); + return seq_has_overflowed(m); } static ssize_t @@ -1026,7 +1029,8 @@ LPROC_SEQ_FOPS_RO(ptlrpc_lprocfs_timeouts); static int ptlrpc_lprocfs_hp_ratio_seq_show(struct seq_file *m, void *v) { struct ptlrpc_service *svc = m->private; - return seq_printf(m, "%d", svc->srv_hpreq_ratio); + seq_printf(m, "%d", svc->srv_hpreq_ratio); + return seq_has_overflowed(m); } static ssize_t ptlrpc_lprocfs_hp_ratio_seq_write(struct file *file, -- 2.1.2

The seq_printf return value will eventually be converted to void. Convert the remaining uses by hand. Signed-off-by: Joe Perches <joe(a)perches.com&gt; --- drivers/staging/lustre/lustre/llite/lproc_llite.c | 34 +++++--- .../lustre/lustre/obdclass/lprocfs_status.c | 94 +++++++++++----------- 2 files changed, 70 insertions(+), 58 deletions(-) diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c index 70a42e4..35b2473 100644 --- a/drivers/staging/lustre/lustre/llite/lproc_llite.c +++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c @@ -58,8 +58,10 @@ static int ll_blksize_seq_show(struct seq_file *m, void *v) rc = ll_statfs_internal(sb, &osfs, cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), OBD_STATFS_NODELAY); - if (!rc) - rc = seq_printf(m, "%u\n", osfs.os_bsize); + if (!rc) { + seq_printf(m, "%u\n", osfs.os_bsize); + rc = seq_has_overflowed(m); + } return rc; } @@ -82,7 +84,8 @@ static int ll_kbytestotal_seq_show(struct seq_file *m, void *v) while (blk_size >>= 1) result <<= 1; - rc = seq_printf(m, "%llu\n", result); + seq_printf(m, "%llu\n", result); + rc = seq_has_overflowed(m); } return rc; } @@ -105,7 +108,8 @@ static int ll_kbytesfree_seq_show(struct seq_file *m, void *v) while (blk_size >>= 1) result <<= 1; - rc = seq_printf(m, "%llu\n", result); + seq_printf(m, "%llu\n", result); + rc = seq_has_overflowed(m); } return rc; } @@ -128,7 +132,8 @@ static int ll_kbytesavail_seq_show(struct seq_file *m, void *v) while (blk_size >>= 1) result <<= 1; - rc = seq_printf(m, "%llu\n", result); + seq_printf(m, "%llu\n", result); + rc = seq_has_overflowed(m); } return rc; } @@ -144,8 +149,10 @@ static int ll_filestotal_seq_show(struct seq_file *m, void *v) rc = ll_statfs_internal(sb, &osfs, cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), OBD_STATFS_NODELAY); - if (!rc) - rc = seq_printf(m, "%llu\n", osfs.os_files); + if (!rc) { + seq_printf(m, "%llu\n", osfs.os_files); + rc = seq_has_overflowed(m); + } return rc; } LPROC_SEQ_FOPS_RO(ll_filestotal); @@ -160,8 +167,10 @@ static int ll_filesfree_seq_show(struct seq_file *m, void *v) rc = ll_statfs_internal(sb, &osfs, cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), OBD_STATFS_NODELAY); - if (!rc) - rc = seq_printf(m, "%llu\n", osfs.os_ffree); + if (!rc) { + seq_printf(m, "%llu\n", osfs.os_ffree); + rc = seq_has_overflowed(m); + } return rc; } LPROC_SEQ_FOPS_RO(ll_filesfree); @@ -169,16 +178,15 @@ LPROC_SEQ_FOPS_RO(ll_filesfree); static int ll_client_type_seq_show(struct seq_file *m, void *v) { struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private); - int rc; LASSERT(sbi != NULL); if (sbi->ll_flags & LL_SBI_RMT_CLIENT) - rc = seq_printf(m, "remote client\n"); + seq_puts(m, "remote client\n"); else - rc = seq_printf(m, "local client\n"); + seq_puts(m, "local client\n"); - return rc; + return seq_has_overflowed(m); } LPROC_SEQ_FOPS_RO(ll_client_type); diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c index 9ac5faf..922fe83 100644 --- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c +++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c @@ -464,8 +464,11 @@ int lprocfs_rd_blksize(struct seq_file *m, void *data) int rc = obd_statfs(NULL, obd->obd_self_export, &osfs, cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), OBD_STATFS_NODELAY); - if (!rc) - rc = seq_printf(m, "%u\n", osfs.os_bsize); + if (!rc) { + seq_printf(m, "%u\n", osfs.os_bsize); + rc = seq_has_overflowed(m); + } + return rc; } EXPORT_SYMBOL(lprocfs_rd_blksize); @@ -484,7 +487,8 @@ int lprocfs_rd_kbytestotal(struct seq_file *m, void *data) while (blk_size >>= 1) result <<= 1; - rc = seq_printf(m, "%llu\n", result); + seq_printf(m, "%llu\n", result); + rc = seq_has_overflowed(m); } return rc; } @@ -504,7 +508,8 @@ int lprocfs_rd_kbytesfree(struct seq_file *m, void *data) while (blk_size >>= 1) result <<= 1; - rc = seq_printf(m, "%llu\n", result); + seq_printf(m, "%llu\n", result); + rc = seq_has_overflowed(m); } return rc; } @@ -524,7 +529,8 @@ int lprocfs_rd_kbytesavail(struct seq_file *m, void *data) while (blk_size >>= 1) result <<= 1; - rc = seq_printf(m, "%llu\n", result); + seq_printf(m, "%llu\n", result); + rc = seq_has_overflowed(m); } return rc; } @@ -537,8 +543,10 @@ int lprocfs_rd_filestotal(struct seq_file *m, void *data) int rc = obd_statfs(NULL, obd->obd_self_export, &osfs, cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), OBD_STATFS_NODELAY); - if (!rc) - rc = seq_printf(m, "%llu\n", osfs.os_files); + if (!rc) { + seq_printf(m, "%llu\n", osfs.os_files); + rc = seq_has_overflowed(m); + } return rc; } @@ -551,8 +559,11 @@ int lprocfs_rd_filesfree(struct seq_file *m, void *data) int rc = obd_statfs(NULL, obd->obd_self_export, &osfs, cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), OBD_STATFS_NODELAY); - if (!rc) - rc = seq_printf(m, "%llu\n", osfs.os_ffree); + if (!rc) { + seq_printf(m, "%llu\n", osfs.os_ffree); + rc = seq_has_overflowed(m); + } + return rc; } EXPORT_SYMBOL(lprocfs_rd_filesfree); @@ -562,17 +573,18 @@ int lprocfs_rd_server_uuid(struct seq_file *m, void *data) struct obd_device *obd = data; struct obd_import *imp; char *imp_state_name = NULL; - int rc = 0; LASSERT(obd != NULL); LPROCFS_CLIMP_CHECK(obd); imp = obd->u.cli.cl_import; imp_state_name = ptlrpc_import_state_name(imp->imp_state); - rc = seq_printf(m, "%s\t%s%s\n", obd2cli_tgt(obd), imp_state_name, - imp->imp_deactive ? "\tDEACTIVATED" : ""); + seq_printf(m, "%s\t%s%s\n", + obd2cli_tgt(obd), imp_state_name, + imp->imp_deactive ? "\tDEACTIVATED" : ""); LPROCFS_CLIMP_EXIT(obd); - return rc; + + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_rd_server_uuid); @@ -580,19 +592,19 @@ int lprocfs_rd_conn_uuid(struct seq_file *m, void *data) { struct obd_device *obd = data; struct ptlrpc_connection *conn; - int rc = 0; LASSERT(obd != NULL); LPROCFS_CLIMP_CHECK(obd); conn = obd->u.cli.cl_import->imp_connection; if (conn && obd->u.cli.cl_import) - rc = seq_printf(m, "%s\n", conn->c_remote_uuid.uuid); + seq_printf(m, "%s\n", conn->c_remote_uuid.uuid); else - rc = seq_printf(m, "%s\n", "<none>"); + seq_printf(m, "%s\n", "<none>"); LPROCFS_CLIMP_EXIT(obd); - return rc; + + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_rd_conn_uuid); @@ -1207,41 +1219,33 @@ static int lprocfs_stats_seq_show(struct seq_file *p, void *v) struct lprocfs_counter_header *hdr; struct lprocfs_counter ctr; int idx = *(loff_t *)v; - int rc = 0; if (idx == 0) { struct timeval now; do_gettimeofday(&now); - rc = seq_printf(p, "%-25s %lu.%lu secs.usecs\n", - "snapshot_time", now.tv_sec, (unsigned long)now.tv_usec); - if (rc < 0) - return rc; + seq_printf(p, "%-25s %lu.%lu secs.usecs\n", + "snapshot_time", + now.tv_sec, (unsigned long)now.tv_usec); } + hdr = &stats->ls_cnt_header[idx]; lprocfs_stats_collect(stats, idx, &ctr); - if (ctr.lc_count == 0) - goto out; - - rc = seq_printf(p, "%-25s %lld samples [%s]", hdr->lc_name, - ctr.lc_count, hdr->lc_units); - - if (rc < 0) - goto out; + if (ctr.lc_count != 0) { + seq_printf(p, "%-25s %lld samples [%s]", + hdr->lc_name, ctr.lc_count, hdr->lc_units); - if ((hdr->lc_config & LPROCFS_CNTR_AVGMINMAX) && (ctr.lc_count > 0)) { - rc = seq_printf(p, " %lld %lld %lld", - ctr.lc_min, ctr.lc_max, ctr.lc_sum); - if (rc < 0) - goto out; - if (hdr->lc_config & LPROCFS_CNTR_STDDEV) - rc = seq_printf(p, " %lld", ctr.lc_sumsquare); - if (rc < 0) - goto out; + if ((hdr->lc_config & LPROCFS_CNTR_AVGMINMAX) && + (ctr.lc_count > 0)) { + seq_printf(p, " %lld %lld %lld", + ctr.lc_min, ctr.lc_max, ctr.lc_sum); + if (hdr->lc_config & LPROCFS_CNTR_STDDEV) + seq_printf(p, " %lld", ctr.lc_sumsquare); + } + seq_putc(p, '\n'); } - rc = seq_printf(p, "\n"); -out: - return (rc < 0) ? rc : 0; + + return seq_has_overflowed(p); } static const struct seq_operations lprocfs_stats_seq_sops = { @@ -2049,12 +2053,12 @@ int lprocfs_obd_rd_max_pages_per_rpc(struct seq_file *m, void *data) { struct obd_device *dev = data; struct client_obd *cli = &dev->u.cli; - int rc; client_obd_list_lock(&cli->cl_loi_list_lock); - rc = seq_printf(m, "%d\n", cli->cl_max_pages_per_rpc); + seq_printf(m, "%d\n", cli->cl_max_pages_per_rpc); client_obd_list_unlock(&cli->cl_loi_list_lock); - return rc; + + return seq_has_overflowed(m); } EXPORT_SYMBOL(lprocfs_obd_rd_max_pages_per_rpc); -- 2.1.2