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[ Upstream commit7f7ab33689] Currently, the list_lru::shrinker_id corresponding to the nfs4_xattr shrinkers is wrong: >>> prog["nfs4_xattr_cache_lru"].shrinker_id (int)0 >>> prog["nfs4_xattr_entry_lru"].shrinker_id (int)0 >>> prog["nfs4_xattr_large_entry_lru"].shrinker_id (int)0 >>> prog["nfs4_xattr_cache_shrinker"].id (int)18 >>> prog["nfs4_xattr_entry_shrinker"].id (int)19 >>> prog["nfs4_xattr_large_entry_shrinker"].id (int)20 This is not what we expect, which will cause these shrinkers not to be found in shrink_slab_memcg(). We should assign shrinker::id before calling list_lru_init_memcg(), so that the corresponding list_lru::shrinker_id will be assigned the correct value like below: >>> prog["nfs4_xattr_cache_lru"].shrinker_id (int)16 >>> prog["nfs4_xattr_entry_lru"].shrinker_id (int)17 >>> prog["nfs4_xattr_large_entry_lru"].shrinker_id (int)18 >>> prog["nfs4_xattr_cache_shrinker"].id (int)16 >>> prog["nfs4_xattr_entry_shrinker"].id (int)17 >>> prog["nfs4_xattr_large_entry_shrinker"].id (int)18 So just do it. Fixes:95ad37f90c("NFSv4.2: add client side xattr caching.") Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.