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authorLukas Czerner <lczerner@redhat.com>2011-01-10 12:09:59 -0500
committerTheodore Ts'o <tytso@mit.edu>2011-01-10 12:09:59 -0500
commit932596366760e3f0dac9998665af1c49afcc4285 (patch)
tree61c75c933abc0f8c9e2f8b712f785d39d46919d3 /fs/ext4
parent4f531501e44206862735e81ddf2b70d0dcf6acf6 (diff)
ext4: remove warning message from ext4_issue_discard helper
ext4_issue_discard is supposed to be helper for calling discard, however in case that underlying device does not support discard it prints out the warning message and clears the DISCARD t_mount_opt flag. Since it can be (and is) used by others, it should not do anything and let the caller to handle the error case. This commit removes warning message and flag setting from ext4_issue_discard and use it just in place where it is really needed (release_blocks_on_commit). FITRIM ioctl should not set any flags nor it should print out warning messages, so get rid of the warning as well. Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/mballoc.c22
1 files changed, 10 insertions, 12 deletions
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 7c603a02633..12b604abc2f 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2608,18 +2608,12 @@ int ext4_mb_release(struct super_block *sb)
static inline int ext4_issue_discard(struct super_block *sb,
ext4_group_t block_group, ext4_grpblk_t block, int count)
{
- int ret;
ext4_fsblk_t discard_block;
discard_block = block + ext4_group_first_block_no(sb, block_group);
trace_ext4_discard_blocks(sb,
(unsigned long long) discard_block, count);
- ret = sb_issue_discard(sb, discard_block, count, GFP_NOFS, 0);
- if (ret == -EOPNOTSUPP) {
- ext4_warning(sb, "discard not supported, disabling");
- clear_opt(sb, DISCARD);
- }
- return ret;
+ return sb_issue_discard(sb, discard_block, count, GFP_NOFS, 0);
}
/*
@@ -2631,7 +2625,7 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
struct super_block *sb = journal->j_private;
struct ext4_buddy e4b;
struct ext4_group_info *db;
- int err, count = 0, count2 = 0;
+ int err, ret, count = 0, count2 = 0;
struct ext4_free_data *entry;
struct list_head *l, *ltmp;
@@ -2641,9 +2635,15 @@ static void release_blocks_on_commit(journal_t *journal, transaction_t *txn)
mb_debug(1, "gonna free %u blocks in group %u (0x%p):",
entry->count, entry->group, entry);
- if (test_opt(sb, DISCARD))
- ext4_issue_discard(sb, entry->group,
+ if (test_opt(sb, DISCARD)) {
+ ret = ext4_issue_discard(sb, entry->group,
entry->start_blk, entry->count);
+ if (unlikely(ret == -EOPNOTSUPP)) {
+ ext4_warning(sb, "discard not supported, "
+ "disabling");
+ clear_opt(sb, DISCARD);
+ }
+ }
err = ext4_mb_load_buddy(sb, entry->group, &e4b);
/* we expect to find existing buddy because it's pinned */
@@ -4722,8 +4722,6 @@ static int ext4_trim_extent(struct super_block *sb, int start, int count,
ext4_unlock_group(sb, group);
ret = ext4_issue_discard(sb, group, start, count);
- if (ret)
- ext4_std_error(sb, ret);
ext4_lock_group(sb, group);
mb_free_blocks(NULL, e4b, start, ex.fe_len);