The patch titled
nfsd: add lock annotations to e_start and e_stop
has been added to the -mm tree. Its filename is
nfsd-add-lock-annotations-to-e_start-and-e_stop.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: nfsd: add lock annotations to e_start and e_stop
From: Josh Triplett <josht@xxxxxxxxxx>
e_start acquires svc_export_cache.hash_lock, and e_stop releases it. Add
lock annotations to these two functions so that sparse can check callers
for lock pairing, and so that sparse will not complain about these
functions since they intentionally use locks in this manner.
Signed-off-by: Josh Triplett <josh@xxxxxxxxxxxxxxx>
Cc: Neil Brown <neilb@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/nfsd/export.c | 2 ++
1 file changed, 2 insertions(+)
diff -puN fs/nfsd/export.c~nfsd-add-lock-annotations-to-e_start-and-e_stop fs/nfsd/export.c
--- a/fs/nfsd/export.c~nfsd-add-lock-annotations-to-e_start-and-e_stop
+++ a/fs/nfsd/export.c
@@ -1078,6 +1078,7 @@ exp_pseudoroot(struct auth_domain *clp,
/* Iterator */
static void *e_start(struct seq_file *m, loff_t *pos)
+ __acquires(svc_export_cache.hash_lock)
{
loff_t n = *pos;
unsigned hash, export;
@@ -1131,6 +1132,7 @@ static void *e_next(struct seq_file *m,
}
static void e_stop(struct seq_file *m, void *p)
+ __releases(svc_export_cache.hash_lock)
{
read_unlock(&svc_export_cache.hash_lock);
exp_readunlock();
_
Patches currently in -mm which might be from josht@xxxxxxxxxx are
release-dentry_lock-in-an-error-path-of-nfs_path.patch
remove-incorrect-unlock_kernel-from-allocation.patch
remove-incorrect-unlock_kernel-from-failure-path-in.patch
add-entry-for-efs-filesystem-to-maintainers-as-orphan.patch
ufs-remove-incorrect-unlock_kernel-from-failure-path-in-ufs_symlink.patch
efi-add-lock-annotations-for-efi_call_phys_prelog-and-efi_call_phys_epilog.patch
mbcache-add-lock-annotation-for-__mb_cache_entry_release_unlock.patch
afs-add-lock-annotations-to-afs_proc_cell_servers_startstop.patch
fuse-add-lock-annotations-to-request_end-and-fuse_read_interrupt.patch
hugetlbfs-add-lock-annotation-to-hugetlbfs_forget_inode.patch
jbd-add-lock-annotation-to-jbd_sync_bh.patch
nfsd-add-lock-annotations-to-e_start-and-e_stop.patch
-
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