ext4_map_blocks() has ext_debug msg early at the start of function.
We also get ext_debug msg if we could allocate a block from
ext4_ext_map_blocks(). But there is no ext_debug() msg in case of
block allocation failure. So add one along with error code.
Also add more info in ext_debug() msg like how many blocks were allocated
v/s how many were requested in ext4_ext_map_blocks().
Signed-off-by: Ritesh Harjani <riteshh@xxxxxxxxxxxxx>
---
fs/ext4/extents.c | 4 ++--
fs/ext4/inode.c | 4 ++++
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index f2b577b315a0..461600c07316 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4218,10 +4218,10 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
newblock = ext4_mb_new_blocks(handle, &ar, &err);
if (!newblock)
goto out2;
- ext_debug("allocate new block: goal %llu, found %llu/%u\n",
- ar.goal, newblock, allocated);
allocated_clusters = ar.len;
ar.len = EXT4_C2B(sbi, ar.len) - offset;
+ ext_debug("allocate new block: goal %llu, found %llu/%u, requested %u\n",
+ ar.goal, newblock, ar.len, allocated);
if (ar.len > allocated)
ar.len = allocated;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index e294abeb7f03..5f120af22d48 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -726,6 +726,10 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
return ret;
}
}
+
+ if (retval < 0)
+ ext_debug("failed for inode %lu with err %d\n",
+ inode->i_ino, retval);
return retval;
}
--
2.21.0
