diff options
| -rw-r--r-- | fs/ext4/inode.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index ab2247d642c..a0ab3754d0d 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1527,9 +1527,25 @@ static int walk_page_buffers(handle_t *handle, static int do_journal_get_write_access(handle_t *handle, struct buffer_head *bh) { + int dirty = buffer_dirty(bh); + int ret; + if (!buffer_mapped(bh) || buffer_freed(bh)) return 0; - return ext4_journal_get_write_access(handle, bh); + /* + * __block_prepare_write() could have dirtied some buffers. Clean + * the dirty bit as jbd2_journal_get_write_access() could complain + * otherwise about fs integrity issues. Setting of the dirty bit + * by __block_prepare_write() isn't a real problem here as we clear + * the bit before releasing a page lock and thus writeback cannot + * ever write the buffer. + */ + if (dirty) + clear_buffer_dirty(bh); + ret = ext4_journal_get_write_access(handle, bh); + if (!ret && dirty) + ret = ext4_handle_dirty_metadata(handle, NULL, bh); + return ret; } /* |