diff options
| author | Miklos Szeredi <[email protected]> | 2021-08-17 21:05:16 +0200 |
|---|---|---|
| committer | Miklos Szeredi <[email protected]> | 2021-08-17 21:05:16 +0200 |
| commit | 76224355db7570cbe6b6f75c8929a1558828dd55 (patch) | |
| tree | 5fe1da76e6516a442bfb45907eb4e5dbbf43d03f /lib/test_overflow.c | |
| parent | 5d5b74aa9c766f0dd37d5cc1a2a7a94586130501 (diff) | |
fuse: truncate pagecache on atomic_o_trunc
fuse_finish_open() will be called with FUSE_NOWRITE in case of atomic
O_TRUNC. This can deadlock with fuse_wait_on_page_writeback() in
fuse_launder_page() triggered by invalidate_inode_pages2().
Fix by replacing invalidate_inode_pages2() in fuse_finish_open() with a
truncate_pagecache() call. This makes sense regardless of FOPEN_KEEP_CACHE
or fc->writeback cache, so do it unconditionally.
Reported-by: Xie Yongji <[email protected]>
Reported-and-tested-by: [email protected]
Fixes: e4648309b85a ("fuse: truncate pending writes on O_TRUNC")
Cc: <[email protected]>
Signed-off-by: Miklos Szeredi <[email protected]>
Diffstat (limited to 'lib/test_overflow.c')
0 files changed, 0 insertions, 0 deletions