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ocfs2: Add dir_resv_level mount option

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The default behavior for directory reservations stays the same, but we add a
mount option so people can tweak the size of directory reservations
according to their workloads.

Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
This commit is contained in:
Mark Fasheh
2010-04-05 18:17:16 -07:00
committed by Joel Becker
parent b07f8f24df
commit 83f92318fa
6 changed files with 40 additions and 5 deletions
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fs/ocfs2/dir.c
+4 -2
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@@ -2977,7 +2977,8 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
* if we only get one now, that's enough to continue. The rest
* will be claimed after the conversion to extents.
*/
data_ac->ac_resv = &oi->ip_la_data_resv;
if (ocfs2_dir_resv_allowed(osb))
data_ac->ac_resv = &oi->ip_la_data_resv;
ret = ocfs2_claim_clusters(osb, handle, data_ac, 1, &bit_off, &len);
if (ret) {
mlog_errno(ret);
@@ -3348,7 +3349,8 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
goto bail;
}
data_ac->ac_resv = &OCFS2_I(dir)->ip_la_data_resv;
if (ocfs2_dir_resv_allowed(osb))
data_ac->ac_resv = &OCFS2_I(dir)->ip_la_data_resv;
credits = ocfs2_calc_extend_credits(sb, el, 1);
} else {