We're seeing file corruption while running 5.10, bisected to 1cc1699070bd:
>> +static int ceph_write_begin(struct file *file, struct address_space *mapping,
>> + loff_t pos, unsigned len, unsigned flags,
>> + struct page **pagep, void **fsdata)
<snip>
>> + /*
>> + * In some cases we don't need to read at all:
>> + * - full page write
>> + * - write that lies completely beyond EOF
>> + * - write that covers the the page from start to EOF or beyond it
>> + */
>> + if ((pos_in_page == 0 && len == PAGE_SIZE) ||
>> + (pos >= i_size_read(inode)) ||
Shouldn't this be '((pos & PAGE_MASK) >= i_size_read(inode)) ||' ?
Seems like fs/netfs/read_helper.c currently has the same issue?
>> + (pos_in_page == 0 && (pos + len) >= i_size_read(inode))) {
>> + zero_user_segments(page, 0, pos_in_page,
>> + pos_in_page + len, PAGE_SIZE);
>> + break;
>> + }
--
Andrew W. Elble
Infrastructure Engineer
Information and Technology Services
Rochester Institute of Technology
tel: (585)-475-2411 | aweits@xxxxxxx
PGP: BFAD 8461 4CCF DC95 DA2C B0EB 965B 082E 863E C912
