diff options
Diffstat (limited to 'fs/ocfs2/localalloc.c')
| -rw-r--r-- | fs/ocfs2/localalloc.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index 880e4bc827be..e39a3e7146c9 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -75,6 +75,34 @@ static int ocfs2_local_alloc_new_window(struct ocfs2_super *osb, static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb, struct inode *local_alloc_inode); +void ocfs2_la_set_sizes(struct ocfs2_super *osb, int requested_mb) +{ + struct super_block *sb = osb->sb; + unsigned int la_default_mb = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE; + unsigned int la_max_mb; + + la_max_mb = ocfs2_clusters_to_megabytes(sb, + ocfs2_local_alloc_size(sb) * 8); + + mlog(0, "requested: %dM, max: %uM, default: %uM\n", + requested_mb, la_max_mb, la_default_mb); + + if (requested_mb == -1) { + /* No user request - use defaults */ + osb->local_alloc_default_bits = + ocfs2_megabytes_to_clusters(sb, la_default_mb); + } else if (requested_mb > la_max_mb) { + /* Request is too big, we give the maximum available */ + osb->local_alloc_default_bits = + ocfs2_megabytes_to_clusters(sb, la_max_mb); + } else { + osb->local_alloc_default_bits = + ocfs2_megabytes_to_clusters(sb, requested_mb); + } + + osb->local_alloc_bits = osb->local_alloc_default_bits; +} + static inline int ocfs2_la_state_enabled(struct ocfs2_super *osb) { return (osb->local_alloc_state == OCFS2_LA_THROTTLED || |