The check for skip pinned case is wrong, it may breaks the
while loop immaturely.
Signed-off-by: Yan Zheng <zheng.yan@xxxxxxxxxx>
---
fs/btrfs/file.c | 10 +++-------
1 files changed, 3 insertions(+), 7 deletions(-)
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index a4a6d2c..a78fb9b 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -179,18 +179,14 @@ int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
}
flags = em->flags;
if (skip_pinned && test_bit(EXTENT_FLAG_PINNED, &em->flags)) {
- if (em->start <= start &&
- (!testend || em->start + em->len >= start + len)) {
+ if (testend && em->start + em->len >= start + len) {
free_extent_map(em);
write_unlock(&em_tree->lock);
break;
}
- if (start < em->start) {
- len = em->start - start;
- } else {
+ start = em->start + em->len;
+ if (testend)
len = start + len - (em->start + em->len);
- start = em->start + em->len;
- }
free_extent_map(em);
write_unlock(&em_tree->lock);
continue;
--
1.6.2.5
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