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Subject[PATCH] staging: exfat: properly support discard in clr_alloc_bitmap()
Currently the discard code in clr_alloc_bitmap() is just dead code.
Move code around so that the discard operation is properly attempted
when enabled.

Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
---
drivers/staging/exfat/exfat_core.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c
index d2d3447083c7..463eb89c676a 100644
--- a/drivers/staging/exfat/exfat_core.c
+++ b/drivers/staging/exfat/exfat_core.c
@@ -192,8 +192,6 @@ static s32 clr_alloc_bitmap(struct super_block *sb, u32 clu)

exfat_bitmap_clear((u8 *)p_fs->vol_amap[i]->b_data, b);

- return sector_write(sb, sector, p_fs->vol_amap[i], 0);
-
#ifdef CONFIG_EXFAT_DISCARD
if (opts->discard) {
ret = sb_issue_discard(sb, START_SECTOR(clu),
@@ -202,9 +200,13 @@ static s32 clr_alloc_bitmap(struct super_block *sb, u32 clu)
if (ret == -EOPNOTSUPP) {
pr_warn("discard not supported by device, disabling");
opts->discard = 0;
+ } else {
+ return ret;
}
}
#endif /* CONFIG_EXFAT_DISCARD */
+
+ return sector_write(sb, sector, p_fs->vol_amap[i], 0);
}

static u32 test_alloc_bitmap(struct super_block *sb, u32 clu)
--
2.20.1
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