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Subject[PATCH 20/52] ext4: Fix ext4_ext_journal_restart() to reflect errors up to the caller
Date
From: Shen Feng <shen@cn.fujitsu.com>

Fix ext4_ext_journal_restart() so it returns any errors reported by
ext4_journal_extend() and ext4_journal_restart().

Signed-off-by: Shen Feng <shen@cn.fujitsu.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
fs/ext4/extents.c | 19 ++++++++-----------
1 files changed, 8 insertions(+), 11 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 3e966da..17ea8bb 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -92,17 +92,16 @@ static void ext4_idx_store_pblock(struct ext4_extent_idx *ix, ext4_fsblk_t pb)
ix->ei_leaf_hi = cpu_to_le16((unsigned long) ((pb >> 31) >> 1) & 0xffff);
}

-static handle_t *ext4_ext_journal_restart(handle_t *handle, int needed)
+static int ext4_ext_journal_restart(handle_t *handle, int needed)
{
int err;

if (handle->h_buffer_credits > needed)
- return handle;
- if (!ext4_journal_extend(handle, needed))
- return handle;
- err = ext4_journal_restart(handle, needed);
-
- return handle;
+ return 0;
+ err = ext4_journal_extend(handle, needed);
+ if (err)
+ return err;
+ return ext4_journal_restart(handle, needed);
}

/*
@@ -1888,11 +1887,9 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode,
credits += 2 * EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb);
#endif

- handle = ext4_ext_journal_restart(handle, credits);
- if (IS_ERR(handle)) {
- err = PTR_ERR(handle);
+ err = ext4_ext_journal_restart(handle, credits);
+ if (err)
goto out;
- }

err = ext4_ext_get_access(handle, inode, path + depth);
if (err)
--
1.5.6.rc3.1.g36b7.dirty


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