FAT also warn user then the discard request fails
as ext4(http://patchwork.ozlabs.org/patch/192669/)
Signed-off-by: Namjae Jeon <linkinj...@gmail.com>
Signed-off-by: Amit Sahrawat <amit.sahrawa...@gmail.com>
---
fs/fat/fatent.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 260705c..fc1f407 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -583,12 +583,15 @@ int fat_free_clusters(struct inode *inode, int cluster)
*/
if (cluster != fatent.entry + 1) {
int nr_clus = fatent.entry - first_cl + 1;
-
- sb_issue_discard(sb,
- fat_clus_to_blknr(sbi, first_cl),
- nr_clus * sbi->sec_per_clus,
- GFP_NOFS, 0);
-
+ sector_t sblk = fat_clus_to_blknr(sbi,
first_cl);
+ sector_t nrblk = nr_clus * sbi->sec_per_clus;
+
+ err = sb_issue_discard(sb,
+ sblk, nrblk, GFP_NOFS, 0);
+ if (err && err != -EOPNOTSUPP)
+ fat_msg(sb, KERN_WARNING, "discard
request for"
+ " block:%llu count:%llu
failed"
+ " with %d", sblk,
nrblk, err);
first_cl = cluster;
}
}
--
1.7.9.5
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