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authorMark Fasheh <mfasheh@suse.com>2010-04-05 18:17:13 -0700
committerJoel Becker <joel.becker@oracle.com>2010-05-05 18:18:06 -0700
commit73c8a80003d13be54e2309865030404441075182 (patch)
tree9b5a47939c22838133f46ea6d207254aa68d177b /fs/ocfs2/ocfs2.h
parenta57c8fd2ad238258cc983049008aea5f985804b2 (diff)
downloadblackbird-op-linux-73c8a80003d13be54e2309865030404441075182.tar.gz
blackbird-op-linux-73c8a80003d13be54e2309865030404441075182.zip
ocfs2: clean up localalloc mount option size parsing
This patch pulls the local alloc sizing code into localalloc.c and provides a callout to it from ocfs2_fill_super(). Behavior is essentially unchanged except that I correctly calculate the maximum local alloc size. The old code in ocfs2_parse_options() calculated the max size as: ocfs2_local_alloc_size(sb) * 8 which is correct, in bits. Unfortunately though the option passed in is in megabytes. Ultimately, this bug made no real difference - the shrink code would catch a too-large size and bring it down to something reasonable. Still, it's less than efficient as-is. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2/ocfs2.h')
-rw-r--r--fs/ocfs2/ocfs2.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index 9552560df6cd..e98c954cf961 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -768,6 +768,12 @@ static inline unsigned int ocfs2_megabytes_to_clusters(struct super_block *sb,
return megs << (20 - OCFS2_SB(sb)->s_clustersize_bits);
}
+static inline unsigned int ocfs2_clusters_to_megabytes(struct super_block *sb,
+ unsigned int clusters)
+{
+ return clusters >> (20 - OCFS2_SB(sb)->s_clustersize_bits);
+}
+
static inline void _ocfs2_set_bit(unsigned int bit, unsigned long *bitmap)
{
ext2_set_bit(bit, bitmap);
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