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| author | Mark Fasheh <mfasheh@suse.com> | 2008-07-28 14:55:20 -0700 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2008-10-13 13:57:57 -0700 |
| commit | ebcee4b5c9136096f64ee6f691a013d7c0a4bc34 (patch) | |
| tree | cb28c9135559a8f5aaf4c61b9d39f9c4ce733b55 /fs/ocfs2/ocfs2.h | |
| parent | 53da4939f349d4edd283b043219221ca5b78e4d4 (diff) | |
| download | op-kernel-dev-ebcee4b5c9136096f64ee6f691a013d7c0a4bc34.zip op-kernel-dev-ebcee4b5c9136096f64ee6f691a013d7c0a4bc34.tar.gz | |
ocfs2: Track local alloc bits internally
Do this instead of tracking absolute local alloc size. This avoids
needless re-calculatiion of bits from bytes in localalloc.c. Additionally,
the value is now in a more natural unit for internal file system bitmap
work.
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/ocfs2.h')
| -rw-r--r-- | fs/ocfs2/ocfs2.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index 7f625f2..43dd42e 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -252,7 +252,7 @@ struct ocfs2_super struct ocfs2_journal *journal; unsigned long osb_commit_interval; - int local_alloc_size; + unsigned int local_alloc_bits; enum ocfs2_local_alloc_state local_alloc_state; struct buffer_head *local_alloc_bh; u64 la_last_gd; @@ -554,6 +554,14 @@ static inline unsigned int ocfs2_pages_per_cluster(struct super_block *sb) return pages_per_cluster; } +static inline unsigned int ocfs2_megabytes_to_clusters(struct super_block *sb, + unsigned int megs) +{ + BUILD_BUG_ON(OCFS2_MAX_CLUSTERSIZE > 1048576); + + return megs << (20 - OCFS2_SB(sb)->s_clustersize_bits); +} + static inline void ocfs2_init_inode_steal_slot(struct ocfs2_super *osb) { spin_lock(&osb->osb_lock); |
