A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-08 21:22:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

BACKPORT: ANDROID: fuse-bpf: Ignore readaheads unless they go to the daemon

Browse source 
readpages will be triggered on the fuse fs in passthrough mode though
system calls like fadvise. If the daemon isn't aware of the file, this
will likely cause a hang.

For the moment, simply ignore fadvise in this situation

Bug: 301201239
Test: fuse_test, atest ScopedStorageDeviceTest both pass
Signed-off-by: Paul Lawrence <paullawrence@google.com>
(cherry picked from https://android-review.googlesource.com/q/commit:ac9071df3ba6715219a16a44d4711f041b0c25de)
Merged-In: I524a84aeeb1b1593e51264fcc37f7cfa66757168
Change-Id: I524a84aeeb1b1593e51264fcc37f7cfa66757168
This commit is contained in:
Paul Lawrence 2023-11-15 14:29:23 -08:00 • committed by Alexander Martinz
commit fa625f8622
No known key found for this signature in database
GPG key ID: CF15BDD9A321A9B2
1 changed files with 13 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

13
fs/fuse/file.c
View file

@ -1033,6 +1033,19 @@ static int fuse_readpages_fill(void *_data, struct page *page)
struct inode *inode = data->inode;
struct fuse_conn *fc = get_fuse_conn(inode);
#ifdef CONFIG_FUSE_BPF
/*
* Currently no meaningful readahead is possible with fuse-bpf within
* the kernel, so unless the daemon is aware of this file, ignore this
* call.
*/
if (!get_fuse_inode(inode)->nodeid)
return -EIO;
#endif
if (fuse_is_bad(inode))
return -EIO;
fuse_wait_on_page_writeback(inode, page->index);
if (ap->num_pages &&