From: Wu Bo <bo.wu@xxxxxxxx>
Now the fuse driver only trust it's local inode size when
writeback_cache is enabled. Even the userspace server tell the driver
the inode cache is invalidated, the size attrabute will not update. And
will keep it's out-of-date size till the inode cache is dropped. This is
not reasonable.
Signed-off-by: Wu Bo <bo.wu@xxxxxxxx>
---
fs/fuse/inode.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 8c0665c5dff8..a4e62c7f2b83 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -162,6 +162,11 @@ static ino_t fuse_squash_ino(u64 ino64)
return ino;
}
+static bool fuse_force_sync(struct fuse_inode *fi)
+{
+ return fi->i_time == 0;
+}
+
void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr,
u64 attr_valid, u32 cache_mask)
{
@@ -222,8 +227,10 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr,
u32 fuse_get_cache_mask(struct inode *inode)
{
struct fuse_conn *fc = get_fuse_conn(inode);
+ struct fuse_inode *fi = get_fuse_inode(inode);
+ bool is_force_sync = fuse_force_sync(fi);
- if (!fc->writeback_cache || !S_ISREG(inode->i_mode))
+ if (!fc->writeback_cache || !S_ISREG(inode->i_mode) || is_force_sync)
return 0;
return STATX_MTIME | STATX_CTIME | STATX_SIZE;
@@ -437,6 +444,7 @@ int fuse_reverse_inval_inode(struct fuse_conn *fc, u64 nodeid,
fi = get_fuse_inode(inode);
spin_lock(&fi->lock);
fi->attr_version = atomic64_inc_return(&fc->attr_version);
+ fi->i_time = 0;
spin_unlock(&fi->lock);
fuse_invalidate_attr(inode);
--
2.35.1
