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gfs2: Simplify the seq file code for "sbstats" 

Don't use struct gfs2_glock_iter as the helper data structure for iterating
through "sbstats"; we are not iterating through glocks here.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2015-08-27 11:43:00 -05:00 committed by Bob Peterson
parent c63f887bda
commit 81648d0431
1 changed files with 11 additions and 20 deletions
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31
fs/gfs2/glock.c
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@ -1776,10 +1776,10 @@ static const char *gfs2_stype[] = {
static int gfs2_sbstats_seq_show(struct seq_file *seq, void *iter_ptr)
{
struct gfs2_glock_iter *gi = seq->private;
struct gfs2_sbd *sdp = gi->sdp;
unsigned index = gi->hash >> 3;
unsigned subindex = gi->hash & 0x07;
struct gfs2_sbd *sdp = seq->private;
loff_t pos = *(loff_t *)iter_ptr;
unsigned index = pos >> 3;
unsigned subindex = pos & 0x07;
s64 value;
int i;
@ -1930,26 +1930,19 @@ static int gfs2_glock_seq_show(struct seq_file *seq, void *iter_ptr)
static void *gfs2_sbstats_seq_start(struct seq_file *seq, loff_t *pos)
{
struct gfs2_glock_iter *gi = seq->private;
gi->hash = *pos;
preempt_disable();
if (*pos >= GFS2_NR_SBSTATS)
return NULL;
preempt_disable();
return SEQ_START_TOKEN;
return pos;
}
static void *gfs2_sbstats_seq_next(struct seq_file *seq, void *iter_ptr,
loff_t *pos)
{
struct gfs2_glock_iter *gi = seq->private;
(*pos)++;
gi->hash++;
if (gi->hash >= GFS2_NR_SBSTATS) {
preempt_enable();
if (*pos >= GFS2_NR_SBSTATS)
return NULL;
}
return SEQ_START_TOKEN;
return pos;
}
static void gfs2_sbstats_seq_stop(struct seq_file *seq, void *iter_ptr)
@ -2012,12 +2005,10 @@ static int gfs2_glstats_open(struct inode *inode, struct file *file)
static int gfs2_sbstats_open(struct inode *inode, struct file *file)
{
int ret = seq_open_private(file, &gfs2_sbstats_seq_ops,
sizeof(struct gfs2_glock_iter));
int ret = seq_open(file, &gfs2_sbstats_seq_ops);
if (ret == 0) {
struct seq_file *seq = file->private_data;
struct gfs2_glock_iter *gi = seq->private;
gi->sdp = inode->i_private;
seq->private = inode->i_private; /* sdp */
}
return ret;
}
@ -2043,7 +2034,7 @@ static const struct file_operations gfs2_sbstats_fops = {
.open = gfs2_sbstats_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private,
.release = seq_release,
};
int gfs2_create_debugfs_file(struct gfs2_sbd *sdp)