Btrfs: mount -o max_inline=size to control the maximum inline extent size
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f8a1016..a46300c 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -64,7 +64,7 @@
enum {
Opt_subvol, Opt_nodatasum, Opt_nodatacow, Opt_max_extent,
- Opt_alloc_start, Opt_nobarrier, Opt_ssd, Opt_err,
+ Opt_max_inline, Opt_alloc_start, Opt_nobarrier, Opt_ssd, Opt_err,
};
static match_table_t tokens = {
@@ -73,6 +73,7 @@
{Opt_nodatacow, "nodatacow"},
{Opt_nobarrier, "nobarrier"},
{Opt_max_extent, "max_extent=%s"},
+ {Opt_max_inline, "max_inline=%s"},
{Opt_alloc_start, "alloc_start=%s"},
{Opt_ssd, "ssd"},
{Opt_err, NULL}
@@ -178,6 +179,22 @@
}
}
break;
+ case Opt_max_inline:
+ if (info) {
+ char *num = match_strdup(&args[0]);
+ if (num) {
+ info->max_inline =
+ btrfs_parse_size(num);
+ kfree(num);
+
+ info->max_inline = max_t(u64,
+ info->max_inline,
+ root->sectorsize);
+ printk("btrfs: max_inline at %Lu\n",
+ info->max_inline);
+ }
+ }
+ break;
case Opt_alloc_start:
if (info) {
char *num = match_strdup(&args[0]);