* [PATCH 1/1] ufs: missing check for block_truncate_page
@ 2015-03-25 1:31 Chengyu Song
0 siblings, 0 replies; only message in thread
From: Chengyu Song @ 2015-03-25 1:31 UTC (permalink / raw)
To: dushistov, linux-kernel; +Cc: taesoo, changwoo, sanidhya, blee, csong84
block_truncate_page may fail under certain circumstances, so its result
should be checked.
Signed-off-by: Chengyu Song <csong84@gatech.edu>
---
fs/ufs/truncate.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/fs/ufs/truncate.c b/fs/ufs/truncate.c
index f04f89f..8b41f07 100644
--- a/fs/ufs/truncate.c
+++ b/fs/ufs/truncate.c
@@ -464,7 +464,12 @@ int ufs_truncate(struct inode *inode, loff_t old_i_size)
goto out;
}
- block_truncate_page(inode->i_mapping, inode->i_size, ufs_getfrag_block);
+ err = block_truncate_page(inode->i_mapping, inode->i_size, ufs_getfrag_block);
+
+ if (err) {
+ i_size_write(inode, old_i_size);
+ goto out;
+ }
while (1) {
retry = ufs_trunc_direct(inode);
--
2.1.0
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