Hi, On Sun, 2025-06-22 at 23:38 -0700, Song Liu wrote: > From: Christian Brauner <brauner@xxxxxxxxxx> > > All allocations of struct kernfs_iattrs are serialized through a global > mutex. Simply do a racy allocation and let the first one win. I bet most > callers are under inode->i_rwsem anyway and it wouldn't be needed but > let's not require that. > > Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx> > Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Acked-by: Tejun Heo <tj@xxxxxxxxxx> > Signed-off-by: Song Liu <song@xxxxxxxxxx> On next-20250701, ls -lA gives errors on /sys: $ ls -lA /sys/ ls: /sys/: No data available ls: /sys/kernel: No data available ls: /sys/power: No data available ls: /sys/class: No data available ls: /sys/devices: No data available ls: /sys/dev: No data available ls: /sys/hypervisor: No data available ls: /sys/fs: No data available ls: /sys/bus: No data available ls: /sys/firmware: No data available ls: /sys/block: No data available ls: /sys/module: No data available total 0 drwxr-xr-x 2 root root 0 Jan 1 1970 block drwxr-xr-x 52 root root 0 Jan 1 1970 bus drwxr-xr-x 88 root root 0 Jan 1 1970 class drwxr-xr-x 4 root root 0 Jan 1 1970 dev drwxr-xr-x 11 root root 0 Jan 1 1970 devices drwxr-xr-x 3 root root 0 Jan 1 1970 firmware drwxr-xr-x 10 root root 0 Jan 1 1970 fs drwxr-xr-x 2 root root 0 Jul 2 09:43 hypervisor drwxr-xr-x 14 root root 0 Jan 1 1970 kernel drwxr-xr-x 251 root root 0 Jan 1 1970 module drwxr-xr-x 3 root root 0 Jul 2 09:43 power and my bisect is pointing to this commit. Simply reverting it also fixes the errors. Do you have any suggestions? Cheers, Andre'
