kernfs: remove iattr_mutex

Browse source

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.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/20250623063854.1896364-2-song@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>

...

This commit is contained in:

Christian Brauner 2025-06-22 23:38:51 -07:00

parent 19272b37aa

commit d1f4e90260

No known key found for this signature in database

GPG key ID: 91C61BC06578DCA2

1 changed files with 40 additions and 34 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

70

fs/kernfs/inode.c

View file