diff options
| author | NeilBrown <neilb@suse.de> | 2022-07-26 16:45:30 +1000 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2022-08-04 10:28:19 -0400 |
| commit | b677c0c63a135a916493c064906582e9f3ed4802 (patch) | |
| tree | 37b44bbc131d2bcdd67fadefb9cbad0402b49c88 /fs | |
| parent | 927bfc5600cd6333c9ef9f090f19e66b7d4c8ee1 (diff) | |
NFSD: always drop directory lock in nfsd_unlink()
Some error paths in nfsd_unlink() allow it to exit without unlocking the
directory. This is not a problem in practice as the directory will be
locked with an fh_put(), but it is untidy and potentially confusing.
This allows us to remove all the fh_unlock() calls that are immediately
after nfsd_unlink() calls.
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfsd/nfs3proc.c | 2 | ||||
| -rw-r--r-- | fs/nfsd/nfs4proc.c | 4 | ||||
| -rw-r--r-- | fs/nfsd/vfs.c | 7 |
3 files changed, 6 insertions, 7 deletions
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c index 1fb75a68b8e5..3de9b008626c 100644 --- a/fs/nfsd/nfs3proc.c +++ b/fs/nfsd/nfs3proc.c @@ -490,7 +490,6 @@ nfsd3_proc_remove(struct svc_rqst *rqstp) fh_copy(&resp->fh, &argp->fh); resp->status = nfsd_unlink(rqstp, &resp->fh, -S_IFDIR, argp->name, argp->len); - fh_unlock(&resp->fh); return rpc_success; } @@ -511,7 +510,6 @@ nfsd3_proc_rmdir(struct svc_rqst *rqstp) fh_copy(&resp->fh, &argp->fh); resp->status = nfsd_unlink(rqstp, &resp->fh, S_IFDIR, argp->name, argp->len); - fh_unlock(&resp->fh); return rpc_success; } diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index d585c01d8da6..8d01cb6d04e3 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1002,10 +1002,8 @@ nfsd4_remove(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, return nfserr_grace; status = nfsd_unlink(rqstp, &cstate->current_fh, 0, remove->rm_name, remove->rm_namelen); - if (!status) { - fh_unlock(&cstate->current_fh); + if (!status) set_change_info(&remove->rm_cinfo, &cstate->current_fh); - } return status; } diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index e726495f2075..00b0b80c0c44 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1753,12 +1753,12 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type, rdentry = lookup_one_len(fname, dentry, flen); host_err = PTR_ERR(rdentry); if (IS_ERR(rdentry)) - goto out_drop_write; + goto out_unlock; if (d_really_is_negative(rdentry)) { dput(rdentry); host_err = -ENOENT; - goto out_drop_write; + goto out_unlock; } rinode = d_inode(rdentry); ihold(rinode); @@ -1796,6 +1796,9 @@ out_nfserr: } out: return err; +out_unlock: + fh_unlock(fhp); + goto out_drop_write; } /* |