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184429a17f
linux-stable/fs/fuse
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Miklos Szeredi 184429a17f Revert "fuse: move initialization of fuse_file to fuse_writepages() instead of in callback" 
This reverts commit 672c3b7457.

fuse_writepages() might be called with no dirty pages after all writable
opens were closed.  In this case __fuse_write_file_get() will return NULL
which will trigger the WARNING.

The exact conditions under which this is triggered is unclear and syzbot
didn't find a reproducer yet.

Reported-by: syzbot+217a976dc26ef2fa8711@syzkaller.appspotmail.com
Link: https://lore.kernel.org/all/CAJnrk1aQwfvb51wQ5rUSf9N8j1hArTFeSkHqC_3T-mU6_BCD=A@mail.gmail.com/
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2024-10-21 10:02:51 +02:00
..
acl.c fuse: support idmapped ->set_acl 2024-09-04 16:51:11 +02:00
control.c [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
cuse.c cuse: add kernel-doc comments to cuse_process_init_reply() 2024-04-15 11:02:10 +02:00
dax.c fs/fuse: introduce and use fuse_simple_idmap_request() helper 2024-09-23 11:07:55 +02:00
dev.c [tree-wide] finally take no_llseek out 2024-09-27 08:18:43 -07:00
dir.c fs/fuse: convert to use invalid_mnt_idmap 2024-09-23 11:10:26 +02:00
file.c Revert "fuse: move initialization of fuse_file to fuse_writepages() instead of in callback" 2024-10-21 10:02:51 +02:00
fuse_i.h fs/fuse: convert to use invalid_mnt_idmap 2024-09-23 11:10:26 +02:00
fuse_trace.h fuse: add simple request tracepoints 2024-08-29 11:43:13 +02:00
inode.c fs/fuse: introduce and use fuse_simple_idmap_request() helper 2024-09-23 11:07:55 +02:00
ioctl.c fs/fuse: introduce and use fuse_simple_idmap_request() helper 2024-09-23 11:07:55 +02:00
iomode.c fuse: fix parallel dio write on file open in passthrough mode 2024-04-15 10:12:44 +02:00
Kconfig fuse: introduce FUSE_PASSTHROUGH capability 2024-02-23 17:36:32 +01:00
Makefile fuse: add simple request tracepoints 2024-08-29 11:43:13 +02:00
passthrough.c fuse: update inode size after extending passthrough write 2024-10-16 13:18:21 +02:00
readdir.c fs/fuse: introduce and use fuse_simple_idmap_request() helper 2024-09-23 11:07:55 +02:00
virtio_fs.c virtio: features, fixes, cleanups 2024-09-26 08:43:17 -07:00
xattr.c fs/fuse: introduce and use fuse_simple_idmap_request() helper 2024-09-23 11:07:55 +02:00