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-rw-r--r--mm/filemap.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/mm/filemap.c b/mm/filemap.c
index 6f1be57..e5711b2 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -309,6 +309,16 @@ int filemap_check_errors(struct address_space *mapping)
}
EXPORT_SYMBOL(filemap_check_errors);
+static int filemap_check_and_keep_errors(struct address_space *mapping)
+{
+ /* Check for outstanding write errors */
+ if (test_bit(AS_EIO, &mapping->flags))
+ return -EIO;
+ if (test_bit(AS_ENOSPC, &mapping->flags))
+ return -ENOSPC;
+ return 0;
+}
+
/**
* __filemap_fdatawrite_range - start writeback on mapping dirty pages in range
* @mapping: address space structure to write
@@ -453,15 +463,17 @@ EXPORT_SYMBOL(filemap_fdatawait_range);
* call sites are system-wide / filesystem-wide data flushers: e.g. sync(2),
* fsfreeze(8)
*/
-void filemap_fdatawait_keep_errors(struct address_space *mapping)
+int filemap_fdatawait_keep_errors(struct address_space *mapping)
{
loff_t i_size = i_size_read(mapping->host);
if (i_size == 0)
- return;
+ return 0;
__filemap_fdatawait_range(mapping, 0, i_size - 1);
+ return filemap_check_and_keep_errors(mapping);
}
+EXPORT_SYMBOL(filemap_fdatawait_keep_errors);
/**
* filemap_fdatawait - wait for all under-writeback pages to complete
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