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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-08-25 18:32:57 +0300
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-08-31 17:21:22 +0300
commitad507653a39e0d27404291e5d813683265388a20 (patch)
tree947cfad487ccb8f3c8ccae065a1fcee9ba7cdab7 /fs/ubifs/find.c
parent4b5f2762ec914c9dfd0e9d2377c0574f2ee9a8f9 (diff)
downloadlinux-ad507653a39e0d27404291e5d813683265388a20.tar.bz2
UBIFS: fix assertion
The assertion was incorrect, because it did not take into account free space. This patch also amends the comments correspondingly, and cleans them up a little. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs/ubifs/find.c')
-rw-r--r--fs/ubifs/find.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/fs/ubifs/find.c b/fs/ubifs/find.c
index adee7b5ddeab..9fc55ae7b033 100644
--- a/fs/ubifs/find.c
+++ b/fs/ubifs/find.c
@@ -211,14 +211,8 @@ static const struct ubifs_lprops *scan_for_dirty(struct ubifs_info *c,
* dirty index heap, and it falls-back to LPT scanning if the heaps are empty
* or do not have an LEB which satisfies the @min_space criteria.
*
- * Note:
- * o LEBs which have less than dead watermark of dirty space are never picked
- * by this function;
- *
- * Returns zero and the LEB properties of
- * found dirty LEB in case of success, %-ENOSPC if no dirty LEB was found and a
- * negative error code in case of other failures. The returned LEB is marked as
- * "taken".
+ * Note, LEBs which have less than dead watermark of free + dirty space are
+ * never picked by this function.
*
* The additional @pick_free argument controls if this function has to return a
* free or freeable LEB if one is present. For example, GC must to set it to %1,
@@ -231,6 +225,10 @@ static const struct ubifs_lprops *scan_for_dirty(struct ubifs_info *c,
*
* In addition @pick_free is set to %2 by the recovery process in order to
* recover gc_lnum in which case an index LEB must not be returned.
+ *
+ * This function returns zero and the LEB properties of found dirty LEB in case
+ * of success, %-ENOSPC if no dirty LEB was found and a negative error code in
+ * case of other failures. The returned LEB is marked as "taken".
*/
int ubifs_find_dirty_leb(struct ubifs_info *c, struct ubifs_lprops *ret_lp,
int min_space, int pick_free)
@@ -317,7 +315,7 @@ int ubifs_find_dirty_leb(struct ubifs_info *c, struct ubifs_lprops *ret_lp,
lp = idx_lp;
if (lp) {
- ubifs_assert(lp->dirty >= c->dead_wm);
+ ubifs_assert(lp->free + lp->dirty >= c->dead_wm);
goto found;
}