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| author |   Dai Ngo <dai.ngo@oracle.com> | 2026-02-04 13:07:43 -0800 |
|---|---|---|
| committer |   Chuck Lever <chuck.lever@oracle.com> | 2026-03-29 21:25:09 -0400 |
| commit | b48f44f36e6607b2f818560f19deb86b4a9c717b (patch) | |
| tree | 3ea63fe071cf198cbedcc9fcddd89462dbd60175 /tools/testing/ktest/examples/include/ssh:/git@git.zx2c4.com | |
| parent | sunrpc: Fix compilation error (`make W=1`) when dprintk() is no-op (diff) | |
NFSD: fix nfs4_file access extra count in nfsd4_add_rdaccess_to_wrdeleg
In nfsd4_add_rdaccess_to_wrdeleg, if fp->fi_fds[O_RDONLY] is already
set by another thread, __nfs4_file_get_access should not be called
to increment the nfs4_file access count since that was already done
by the thread that added READ access to the file. The extra fi_access
count in nfs4_file can prevent the corresponding nfsd_file from being
freed.
When stopping nfs-server service, these extra access counts trigger a
BUG in kmem_cache_destroy() that shows nfsd_file object remaining on
__kmem_cache_shutdown.
This problem can be reproduced by running the Git project's test
suite over NFS.
Fixes: 8072e34e1387 ("nfsd: fix nfsd_file reference leak in nfsd4_add_rdaccess_to_wrdeleg()")
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'tools/testing/ktest/examples/include/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions