diff mbox series

[v3,1/3] ceph: flush small range instead of the whole map for truncate

Message ID 20220412070745.22795-2-xiubli@redhat.com
State New
Headers show
Series ceph: misc fix size truncate for fscrypt | expand

Commit Message

Xiubo Li April 12, 2022, 7:07 a.m. UTC 
Signed-off-by: Xiubo Li <xiubli@redhat.com>
---
 fs/ceph/inode.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
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Patch

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index fa0d3018d981..a5145a2b7228 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -2274,8 +2274,13 @@  static int fill_fscrypt_truncate(struct inode *inode,
 	     ceph_cap_string(issued));
 
 	/* Try to writeback the dirty pagecaches */
-	if (issued & (CEPH_CAP_FILE_BUFFER))
-		filemap_write_and_wait(inode->i_mapping);
+	if (issued & (CEPH_CAP_FILE_BUFFER)) {
+		loff_t lend = orig_pos + CEPH_FSCRYPT_BLOCK_SHIFT - 1;
+		ret = filemap_write_and_wait_range(inode->i_mapping,
+						   orig_pos, lend);
+		if (ret < 0)
+			goto out;
+	}
 
 	page = __page_cache_alloc(GFP_KERNEL);
 	if (page == NULL) {