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

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@nokia.com>

diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index 73db464..1a4973e 100644 (file)
--- 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 (file)
--- 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 (file)
--- 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"