[PATCH] UBIFS: add a print, fix comments and more minor stuff

From: Artem Bityutskiy
Date: Tue Sep 30 2008 - 03:47:52 EST


From: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx>

This commit adds a reserved pool size print and tweaks the
prints to make them look nicer.

It also fixes and cleans-up some comments.

Additionally, it deletes some blank lines to make the code look
a little nicer.

In other words, nothing essential.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx>
---
fs/ubifs/budget.c | 26 ++++++++++++++------------
fs/ubifs/lprops.c | 6 +-----
fs/ubifs/super.c | 16 +++++++++-------
3 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index 73db464..1a4973e 100644
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -414,19 +414,21 @@ static int do_budget_space(struct ubifs_info *c)
* @c->lst.empty_lebs + @c->freeable_cnt + @c->idx_gc_cnt -
* @c->lst.taken_empty_lebs
*
- * @empty_lebs are available because they are empty. @freeable_cnt are
- * available because they contain only free and dirty space and the
- * index allocation always occurs after wbufs are synch'ed.
- * @idx_gc_cnt are available because they are index LEBs that have been
- * garbage collected (including trivial GC) and are awaiting the commit
- * before they can be unmapped - note that the in-the-gaps method will
- * grab these if it needs them. @taken_empty_lebs are empty_lebs that
- * have already been allocated for some purpose (also includes those
- * LEBs on the @idx_gc list).
+ * @c->lst.empty_lebs are available because they are empty.
+ * @c->freeable_cnt are available because they contain only free and
+ * dirty space, @c->idx_gc_cnt are available because they are index
+ * LEBs that have been garbage collected and are awaiting the commit
+ * before they can be used. And the in-the-gaps method will grab these
+ * if it needs them. @c->lst.taken_empty_lebs are empty LEBs that have
+ * already been allocated for some purpose.
*
- * Note, @taken_empty_lebs may temporarily be higher by one because of
- * the way we serialize LEB allocations and budgeting. See a comment in
- * 'ubifs_find_free_space()'.
+ * Note, @c->idx_gc_cnt is included to both @c->lst.empty_lebs (because
+ * these LEBs are empty) and to @c->lst.taken_empty_lebs (because they
+ * are taken until after the commit).
+ *
+ * Note, @c->lst.taken_empty_lebs may temporarily be higher by one
+ * because of the way we serialize LEB allocations and budgeting. See a
+ * comment in 'ubifs_find_free_space()'.
*/
lebs = c->lst.empty_lebs + c->freeable_cnt + c->idx_gc_cnt -
c->lst.taken_empty_lebs;
diff --git a/fs/ubifs/lprops.c b/fs/ubifs/lprops.c
index 2ba93da..3659b88 100644
--- a/fs/ubifs/lprops.c
+++ b/fs/ubifs/lprops.c
@@ -125,6 +125,7 @@ static void adjust_lpt_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap,
}
}
}
+
/* Not greater than parent, so compare to children */
while (1) {
/* Compare to left child */
@@ -576,7 +577,6 @@ const struct ubifs_lprops *ubifs_change_lp(struct ubifs_info *c,
ubifs_assert(!(lprops->free & 7) && !(lprops->dirty & 7));

spin_lock(&c->space_lock);
-
if ((lprops->flags & LPROPS_TAKEN) && lprops->free == c->leb_size)
c->lst.taken_empty_lebs -= 1;

@@ -637,11 +637,8 @@ const struct ubifs_lprops *ubifs_change_lp(struct ubifs_info *c,
c->lst.taken_empty_lebs += 1;

change_category(c, lprops);
-
c->idx_gc_cnt += idx_gc_cnt;
-
spin_unlock(&c->space_lock);
-
return lprops;
}

@@ -1262,7 +1259,6 @@ static int scan_check_cb(struct ubifs_info *c,
}

ubifs_scan_destroy(sleb);
-
return LPT_SCAN_CONTINUE;

out_print:
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 3f49020..667c72d 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1144,19 +1144,21 @@ static int mount_ubifs(struct ubifs_info *c)
if (mounted_read_only)
ubifs_msg("mounted read-only");
x = (long long)c->main_lebs * c->leb_size;
- ubifs_msg("file system size: %lld bytes (%lld KiB, %lld MiB, %d LEBs)",
- x, x >> 10, x >> 20, c->main_lebs);
+ ubifs_msg("file system size: %lld bytes (%lld KiB, %lld MiB, %d "
+ "LEBs)", x, x >> 10, x >> 20, c->main_lebs);
x = (long long)c->log_lebs * c->leb_size + c->max_bud_bytes;
- ubifs_msg("journal size: %lld bytes (%lld KiB, %lld MiB, %d LEBs)",
- x, x >> 10, x >> 20, c->log_lebs + c->max_bud_cnt);
- ubifs_msg("default compressor: %s", ubifs_compr_name(c->default_compr));
- ubifs_msg("media format %d, latest format %d",
+ ubifs_msg("journal size: %lld bytes (%lld KiB, %lld MiB, %d "
+ "LEBs)", x, x >> 10, x >> 20, c->log_lebs + c->max_bud_cnt);
+ ubifs_msg("media format: %d (latest is %d)",
c->fmt_version, UBIFS_FORMAT_VERSION);
+ ubifs_msg("default compressor: %s", ubifs_compr_name(c->default_compr));
+ ubifs_msg("reserved pool size: %llu bytes (%llu KiB)",
+ c->report_rp_size, c->report_rp_size >> 10);

dbg_msg("compiled on: " __DATE__ " at " __TIME__);
dbg_msg("min. I/O unit size: %d bytes", c->min_io_size);
dbg_msg("LEB size: %d bytes (%d KiB)",
- c->leb_size, c->leb_size / 1024);
+ c->leb_size, c->leb_size >> 10);
dbg_msg("data journal heads: %d",
c->jhead_cnt - NONDATA_JHEADS_CNT);
dbg_msg("UUID: %02X%02X%02X%02X-%02X%02X"
--
1.5.4.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/