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ocfs2: Support commit= mount option

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Mostly taken from ext3. This allows the user to set the jbd commit interval,
in seconds. The default of 5 seconds stays the same, but now users can
easily increase the commit interval. Typically, this would be increased in
order to benefit performance at the expense of data-safety.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Mark Fasheh
2007-11-07 14:40:36 -08:00
parent 0957f00796
commit d147b3d630
4 changed files with 41 additions and 2 deletions
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8
fs/ocfs2/journal.c
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@ -313,14 +313,18 @@ int ocfs2_journal_dirty_data(handle_t *handle,
return err;
}
#define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * 5)
#define OCFS2_DEFAULT_COMMIT_INTERVAL (HZ * JBD_DEFAULT_MAX_COMMIT_AGE)
void ocfs2_set_journal_params(struct ocfs2_super *osb)
{
journal_t *journal = osb->journal->j_journal;
unsigned long commit_interval = OCFS2_DEFAULT_COMMIT_INTERVAL;
if (osb->osb_commit_interval)
commit_interval = osb->osb_commit_interval;
spin_lock(&journal->j_state_lock);
journal->j_commit_interval = OCFS2_DEFAULT_COMMIT_INTERVAL;
journal->j_commit_interval = commit_interval;
if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER)
journal->j_flags |= JFS_BARRIER;
else