ext4: retry allocation when inline->extent conversion failed

Similarly as other ->write_begin functions in ext4, also
ext4_da_write_inline_data_begin() should retry allocation if the
conversion failed because of ENOSPC. This avoids returning ENOSPC
prematurely because of uncommitted block deletions.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

1 files changed, 7 insertions, 0 deletions

diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index bae987549dc3..ed6e71fe5e9d 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -849,11 +849,13 @@ int ext4_da_write_inline_data_begin(struct address_space *mapping,
         handle_t *handle;
         struct page *page;
         struct ext4_iloc iloc;
+        int retries;
 
         ret = ext4_get_inode_loc(inode, &iloc);
         if (ret)
                 return ret;
 
+retry_journal:
         handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);
         if (IS_ERR(handle)) {
                 ret = PTR_ERR(handle);
@@ -875,6 +877,11 @@ int ext4_da_write_inline_data_begin(struct address_space *mapping,
                                                             inode,
                                                             flags,
                                                             fsdata);
+                ext4_journal_stop(handle);
+                handle = NULL;
+                if (ret == -ENOSPC &&
+                    ext4_should_retry_alloc(inode->i_sb, &retries))
+                        goto retry_journal;
                 goto out;
         }