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cifs: return the more nuanced writeback error on close()

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As filemap_check_errors() only report -EIO or -ENOSPC, we return more nuanced
writeback error -(file->f_mapping->wb_err & MAX_ERRNO).

  filemap_write_and_wait
    filemap_write_and_wait_range
      filemap_check_errors
        -ENOSPC or -EIO
  filemap_check_wb_err
    errseq_check
      return -(file->f_mapping->wb_err & MAX_ERRNO)

Signed-off-by: ChenXiaoSong <chenxiaosong2@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
ChenXiaoSong 2022-05-18 22:56:49 +08:00 committed by Steve French
parent fb253d5ba3
commit 2b058acecf
1 changed files with 4 additions and 1 deletions
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5
fs/cifs/file.c
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@ -2777,8 +2777,11 @@ int cifs_flush(struct file *file, fl_owner_t id)
rc = filemap_write_and_wait(inode->i_mapping);
cifs_dbg(FYI, "Flush inode %p file %p rc %d\n", inode, file, rc);
if (rc)
if (rc) {
/* get more nuanced writeback errors */
rc = filemap_check_wb_err(file->f_mapping, 0);
trace_cifs_flush_err(inode->i_ino, rc);
}
return rc;
}