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authorJan Kara <jack@suse.cz>2024-02-13 11:16:01 +0100
committerTheodore Ts'o <tytso@mit.edu>2024-03-07 13:32:54 -0500
commitfa60629380bbbf0952d2eb906da187b171f54529 (patch)
treeff2c9b9f8108cbd311424569c5caea87b8702675 /fs/ext4
parent7f48212678e91a057259b3e281701f7feb1ee397 (diff)
ext4: don't report EOPNOTSUPP errors from discard
When ext4 is mounted without journal, with discard mount option, and on a device not supporting trim, we print error for each and every freed extent. This is not only useless but actively harmful. Instead ignore the EOPNOTSUPP error. Trim is only advisory anyway and when the filesystem has journal we silently ignore trim error as well. Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Zhang Yi <yi.zhang@huawei.com> Link: https://lore.kernel.org/r/20240213101601.17463-1-jack@suse.cz Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/mballoc.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index bd26f2a90751..85a91a61b761 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -6496,7 +6496,13 @@ do_more:
if (test_opt(sb, DISCARD)) {
err = ext4_issue_discard(sb, block_group, bit,
count_clusters, NULL);
- if (err && err != -EOPNOTSUPP)
+ /*
+ * Ignore EOPNOTSUPP error. This is consistent with
+ * what happens when using journal.
+ */
+ if (err == -EOPNOTSUPP)
+ err = 0;
+ if (err)
ext4_msg(sb, KERN_WARNING, "discard request in"
" group:%u block:%d count:%lu failed"
" with %d", block_group, bit, count,