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authorMark Fasheh <mfasheh@suse.com>2010-04-06 05:17:16 +0400
committerJoel Becker <joel.becker@oracle.com>2010-05-06 05:18:07 +0400
commit83f92318fa33cc084e14e64dc903e605f75884c1 (patch)
treec7466c64019fb050c69cab27b4388e3a86d58b1a /fs/ocfs2/reservations.c
parentb07f8f24dfe54da0f074b78949044842e8df881f (diff)
downloadlinux-83f92318fa33cc084e14e64dc903e605f75884c1.tar.xz
ocfs2: Add dir_resv_level mount option
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>
Diffstat (limited to 'fs/ocfs2/reservations.c')
-rw-r--r--fs/ocfs2/reservations.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c
index 87fa35791f18..6497bcc00fa5 100644
--- a/fs/ocfs2/reservations.c
+++ b/fs/ocfs2/reservations.c
@@ -44,7 +44,11 @@ DEFINE_SPINLOCK(resv_lock);
#define OCFS2_MIN_RESV_WINDOW_BITS 8
#define OCFS2_MAX_RESV_WINDOW_BITS 1024
-#define OCFS2_RESV_DIR_WINDOW_BITS OCFS2_MIN_RESV_WINDOW_BITS
+
+int ocfs2_dir_resv_allowed(struct ocfs2_super *osb)
+{
+ return (osb->osb_resv_level && osb->osb_dir_resv_level);
+}
static unsigned int ocfs2_resv_window_bits(struct ocfs2_reservation_map *resmap,
struct ocfs2_alloc_reservation *resv)
@@ -56,8 +60,7 @@ static unsigned int ocfs2_resv_window_bits(struct ocfs2_reservation_map *resmap,
/* 8, 16, 32, 64, 128, 256, 512, 1024 */
bits = 4 << osb->osb_resv_level;
} else {
- /* For now, treat directories the same as files. */
- bits = 4 << osb->osb_resv_level;
+ bits = 4 << osb->osb_dir_resv_level;
}
return bits;
}