5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chuck Lever chuck.lever@oracle.com
[ Upstream commit 54f7df7094b329ca35d9f9808692bb16c48b13e9 ]
I'm about to replace nfsd_file_hashtbl with an rhashtable. The individual hash values will no longer be visible or relevant, so remove them from the tracepoints.
Reviewed-by: Jeff Layton jlayton@kernel.org Signed-off-by: Chuck Lever chuck.lever@oracle.com --- fs/nfsd/filecache.c | 15 ++++++++------- fs/nfsd/trace.h | 45 +++++++++++++++++++++------------------------ 2 files changed, 29 insertions(+), 31 deletions(-)
diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c index 7a02ff11b9ec1..2d013a88e3565 100644 --- a/fs/nfsd/filecache.c +++ b/fs/nfsd/filecache.c @@ -588,7 +588,7 @@ nfsd_file_close_inode_sync(struct inode *inode) LIST_HEAD(dispose);
__nfsd_file_close_inode(inode, hashval, &dispose); - trace_nfsd_file_close_inode_sync(inode, hashval, !list_empty(&dispose)); + trace_nfsd_file_close_inode_sync(inode, !list_empty(&dispose)); nfsd_file_dispose_list_sync(&dispose); }
@@ -608,7 +608,7 @@ nfsd_file_close_inode(struct inode *inode) LIST_HEAD(dispose);
__nfsd_file_close_inode(inode, hashval, &dispose); - trace_nfsd_file_close_inode(inode, hashval, !list_empty(&dispose)); + trace_nfsd_file_close_inode(inode, !list_empty(&dispose)); nfsd_file_dispose_list_delayed(&dispose); }
@@ -962,7 +962,7 @@ nfsd_file_is_cached(struct inode *inode) } } rcu_read_unlock(); - trace_nfsd_file_is_cached(inode, hashval, (int)ret); + trace_nfsd_file_is_cached(inode, (int)ret); return ret; }
@@ -994,9 +994,8 @@ nfsd_do_file_acquire(struct svc_rqst *rqstp, struct svc_fh *fhp,
new = nfsd_file_alloc(inode, may_flags, hashval, net); if (!new) { - trace_nfsd_file_acquire(rqstp, hashval, inode, may_flags, - NULL, nfserr_jukebox); - return nfserr_jukebox; + status = nfserr_jukebox; + goto out_status; }
spin_lock(&nfsd_file_hashtbl[hashval].nfb_lock); @@ -1034,8 +1033,10 @@ nfsd_do_file_acquire(struct svc_rqst *rqstp, struct svc_fh *fhp, nf = NULL; }
- trace_nfsd_file_acquire(rqstp, hashval, inode, may_flags, nf, status); +out_status: + trace_nfsd_file_acquire(rqstp, inode, may_flags, nf, status); return status; + open_file: nf = new; /* Take reference for the hashtable */ diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index cc55a2b32e8cd..655b56c87600b 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -747,7 +747,6 @@ DECLARE_EVENT_CLASS(nfsd_file_class, TP_PROTO(struct nfsd_file *nf), TP_ARGS(nf), TP_STRUCT__entry( - __field(unsigned int, nf_hashval) __field(void *, nf_inode) __field(int, nf_ref) __field(unsigned long, nf_flags) @@ -755,15 +754,13 @@ DECLARE_EVENT_CLASS(nfsd_file_class, __field(struct file *, nf_file) ), TP_fast_assign( - __entry->nf_hashval = nf->nf_hashval; __entry->nf_inode = nf->nf_inode; __entry->nf_ref = refcount_read(&nf->nf_ref); __entry->nf_flags = nf->nf_flags; __entry->nf_may = nf->nf_may; __entry->nf_file = nf->nf_file; ), - TP_printk("hash=0x%x inode=%p ref=%d flags=%s may=%s file=%p", - __entry->nf_hashval, + TP_printk("inode=%p ref=%d flags=%s may=%s nf_file=%p", __entry->nf_inode, __entry->nf_ref, show_nf_flags(__entry->nf_flags), @@ -783,15 +780,18 @@ DEFINE_NFSD_FILE_EVENT(nfsd_file_put); DEFINE_NFSD_FILE_EVENT(nfsd_file_unhash_and_release_locked);
TRACE_EVENT(nfsd_file_acquire, - TP_PROTO(struct svc_rqst *rqstp, unsigned int hash, - struct inode *inode, unsigned int may_flags, - struct nfsd_file *nf, __be32 status), + TP_PROTO( + struct svc_rqst *rqstp, + struct inode *inode, + unsigned int may_flags, + struct nfsd_file *nf, + __be32 status + ),
- TP_ARGS(rqstp, hash, inode, may_flags, nf, status), + TP_ARGS(rqstp, inode, may_flags, nf, status),
TP_STRUCT__entry( __field(u32, xid) - __field(unsigned int, hash) __field(void *, inode) __field(unsigned long, may_flags) __field(int, nf_ref) @@ -803,7 +803,6 @@ TRACE_EVENT(nfsd_file_acquire,
TP_fast_assign( __entry->xid = be32_to_cpu(rqstp->rq_xid); - __entry->hash = hash; __entry->inode = inode; __entry->may_flags = may_flags; __entry->nf_ref = nf ? refcount_read(&nf->nf_ref) : 0; @@ -813,8 +812,8 @@ TRACE_EVENT(nfsd_file_acquire, __entry->status = be32_to_cpu(status); ),
- TP_printk("xid=0x%x hash=0x%x inode=%p may_flags=%s ref=%d nf_flags=%s nf_may=%s nf_file=%p status=%u", - __entry->xid, __entry->hash, __entry->inode, + TP_printk("xid=0x%x inode=%p may_flags=%s ref=%d nf_flags=%s nf_may=%s nf_file=%p status=%u", + __entry->xid, __entry->inode, show_nfsd_may_flags(__entry->may_flags), __entry->nf_ref, show_nf_flags(__entry->nf_flags), show_nfsd_may_flags(__entry->nf_may), @@ -825,7 +824,6 @@ TRACE_EVENT(nfsd_file_open, TP_PROTO(struct nfsd_file *nf, __be32 status), TP_ARGS(nf, status), TP_STRUCT__entry( - __field(unsigned int, nf_hashval) __field(void *, nf_inode) /* cannot be dereferenced */ __field(int, nf_ref) __field(unsigned long, nf_flags) @@ -833,15 +831,13 @@ TRACE_EVENT(nfsd_file_open, __field(void *, nf_file) /* cannot be dereferenced */ ), TP_fast_assign( - __entry->nf_hashval = nf->nf_hashval; __entry->nf_inode = nf->nf_inode; __entry->nf_ref = refcount_read(&nf->nf_ref); __entry->nf_flags = nf->nf_flags; __entry->nf_may = nf->nf_may; __entry->nf_file = nf->nf_file; ), - TP_printk("hash=0x%x inode=%p ref=%d flags=%s may=%s file=%p", - __entry->nf_hashval, + TP_printk("inode=%p ref=%d flags=%s may=%s file=%p", __entry->nf_inode, __entry->nf_ref, show_nf_flags(__entry->nf_flags), @@ -850,26 +846,27 @@ TRACE_EVENT(nfsd_file_open, )
DECLARE_EVENT_CLASS(nfsd_file_search_class, - TP_PROTO(struct inode *inode, unsigned int hash, int found), - TP_ARGS(inode, hash, found), + TP_PROTO( + struct inode *inode, + int found + ), + TP_ARGS(inode, found), TP_STRUCT__entry( __field(struct inode *, inode) - __field(unsigned int, hash) __field(int, found) ), TP_fast_assign( __entry->inode = inode; - __entry->hash = hash; __entry->found = found; ), - TP_printk("hash=0x%x inode=%p found=%d", __entry->hash, - __entry->inode, __entry->found) + TP_printk("inode=%p found=%d", + __entry->inode, __entry->found) );
#define DEFINE_NFSD_FILE_SEARCH_EVENT(name) \ DEFINE_EVENT(nfsd_file_search_class, name, \ - TP_PROTO(struct inode *inode, unsigned int hash, int found), \ - TP_ARGS(inode, hash, found)) + TP_PROTO(struct inode *inode, int found), \ + TP_ARGS(inode, found))
DEFINE_NFSD_FILE_SEARCH_EVENT(nfsd_file_close_inode_sync); DEFINE_NFSD_FILE_SEARCH_EVENT(nfsd_file_close_inode);