From 1eb5d98f16f6d71af8781436d2b0bcf9236f7fc6 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Tue, 9 Jan 2018 08:21:17 -0500 Subject: [PATCH] nfs: convert to new i_version API For NFS, we just use the "raw" API since the i_version is mostly managed by the server. The exception there is when the client holds a write delegation, but we only need to bump it once there anyway to handle CB_GETATTR. Tested-by: Krzysztof Kozlowski Signed-off-by: Jeff Layton --- fs/nfs/delegation.c | 3 ++- fs/nfs/fscache-index.c | 5 +++-- fs/nfs/inode.c | 18 +++++++++--------- fs/nfs/nfs4proc.c | 10 ++++++---- fs/nfs/nfstrace.h | 5 +++-- fs/nfs/write.c | 8 +++----- 6 files changed, 26 insertions(+), 23 deletions(-) diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index ade44ca0c66c..d8b47624fee2 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -347,7 +348,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs4_stateid_copy(&delegation->stateid, &res->delegation); delegation->type = res->delegation_type; delegation->pagemod_limit = res->pagemod_limit; - delegation->change_attr = inode->i_version; + delegation->change_attr = inode_peek_iversion_raw(inode); delegation->cred = get_rpccred(cred); delegation->inode = inode; delegation->flags = 1< #include #include +#include #include "internal.h" #include "fscache.h" @@ -211,7 +212,7 @@ static uint16_t nfs_fscache_inode_get_aux(const void *cookie_netfs_data, auxdata.ctime = nfsi->vfs_inode.i_ctime; if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4) - auxdata.change_attr = nfsi->vfs_inode.i_version; + auxdata.change_attr = inode_peek_iversion_raw(&nfsi->vfs_inode); if (bufmax > sizeof(auxdata)) bufmax = sizeof(auxdata); @@ -243,7 +244,7 @@ enum fscache_checkaux nfs_fscache_inode_check_aux(void *cookie_netfs_data, auxdata.ctime = nfsi->vfs_inode.i_ctime; if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4) - auxdata.change_attr = nfsi->vfs_inode.i_version; + auxdata.change_attr = inode_peek_iversion_raw(&nfsi->vfs_inode); if (memcmp(data, &auxdata, datalen) != 0) return FSCACHE_CHECKAUX_OBSOLETE; diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index b992d2382ffa..93552c482992 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -38,8 +38,8 @@ #include #include #include - #include +#include #include "nfs4_fs.h" #include "callback.h" @@ -483,7 +483,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st memset(&inode->i_atime, 0, sizeof(inode->i_atime)); memset(&inode->i_mtime, 0, sizeof(inode->i_mtime)); memset(&inode->i_ctime, 0, sizeof(inode->i_ctime)); - inode->i_version = 0; + inode_set_iversion_raw(inode, 0); inode->i_size = 0; clear_nlink(inode); inode->i_uid = make_kuid(&init_user_ns, -2); @@ -508,7 +508,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st else if (nfs_server_capable(inode, NFS_CAP_CTIME)) nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR); if (fattr->valid & NFS_ATTR_FATTR_CHANGE) - inode->i_version = fattr->change_attr; + inode_set_iversion_raw(inode, fattr->change_attr); else nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR | NFS_INO_REVAL_PAGECACHE); @@ -1289,8 +1289,8 @@ static unsigned long nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr if ((fattr->valid & NFS_ATTR_FATTR_PRECHANGE) && (fattr->valid & NFS_ATTR_FATTR_CHANGE) - && inode->i_version == fattr->pre_change_attr) { - inode->i_version = fattr->change_attr; + && !inode_cmp_iversion_raw(inode, fattr->pre_change_attr)) { + inode_set_iversion_raw(inode, fattr->change_attr); if (S_ISDIR(inode->i_mode)) nfs_set_cache_invalid(inode, NFS_INO_INVALID_DATA); ret |= NFS_INO_INVALID_ATTR; @@ -1348,7 +1348,7 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat if (!nfs_file_has_buffered_writers(nfsi)) { /* Verify a few of the more important attributes */ - if ((fattr->valid & NFS_ATTR_FATTR_CHANGE) != 0 && inode->i_version != fattr->change_attr) + if ((fattr->valid & NFS_ATTR_FATTR_CHANGE) != 0 && inode_cmp_iversion_raw(inode, fattr->change_attr)) invalid |= NFS_INO_INVALID_ATTR | NFS_INO_REVAL_PAGECACHE; if ((fattr->valid & NFS_ATTR_FATTR_MTIME) && !timespec_equal(&inode->i_mtime, &fattr->mtime)) @@ -1642,7 +1642,7 @@ int nfs_post_op_update_inode_force_wcc_locked(struct inode *inode, struct nfs_fa } if ((fattr->valid & NFS_ATTR_FATTR_CHANGE) != 0 && (fattr->valid & NFS_ATTR_FATTR_PRECHANGE) == 0) { - fattr->pre_change_attr = inode->i_version; + fattr->pre_change_attr = inode_peek_iversion_raw(inode); fattr->valid |= NFS_ATTR_FATTR_PRECHANGE; } if ((fattr->valid & NFS_ATTR_FATTR_CTIME) != 0 && @@ -1778,7 +1778,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) /* More cache consistency checks */ if (fattr->valid & NFS_ATTR_FATTR_CHANGE) { - if (inode->i_version != fattr->change_attr) { + if (inode_cmp_iversion_raw(inode, fattr->change_attr)) { dprintk("NFS: change_attr change on server for file %s/%ld\n", inode->i_sb->s_id, inode->i_ino); /* Could it be a race with writeback? */ @@ -1790,7 +1790,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) if (S_ISDIR(inode->i_mode)) nfs_force_lookup_revalidate(inode); } - inode->i_version = fattr->change_attr; + inode_set_iversion_raw(inode, fattr->change_attr); } } else { nfsi->cache_validity |= save_cache_validity; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 56fa5a16e097..17a03f2c4330 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -54,6 +54,7 @@ #include #include #include +#include #include "nfs4_fs.h" #include "delegation.h" @@ -1045,16 +1046,16 @@ static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo, spin_lock(&dir->i_lock); nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA; - if (cinfo->atomic && cinfo->before == dir->i_version) { + if (cinfo->atomic && cinfo->before == inode_peek_iversion_raw(dir)) { nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE; nfsi->attrtimeo_timestamp = jiffies; } else { nfs_force_lookup_revalidate(dir); - if (cinfo->before != dir->i_version) + if (cinfo->before != inode_peek_iversion_raw(dir)) nfsi->cache_validity |= NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL; } - dir->i_version = cinfo->after; + inode_set_iversion_raw(dir, cinfo->after); nfsi->read_cache_jiffies = timestamp; nfsi->attr_gencount = nfs_inc_attr_generation_counter(); nfs_fscache_invalidate(dir); @@ -2454,7 +2455,8 @@ static int _nfs4_proc_open(struct nfs4_opendata *data) data->file_created = true; else if (o_res->cinfo.before != o_res->cinfo.after) data->file_created = true; - if (data->file_created || dir->i_version != o_res->cinfo.after) + if (data->file_created || + inode_peek_iversion_raw(dir) != o_res->cinfo.after) update_changeattr(dir, &o_res->cinfo, o_res->f_attr->time_start); } diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h index 093290c42d7c..610d89d8942e 100644 --- a/fs/nfs/nfstrace.h +++ b/fs/nfs/nfstrace.h @@ -9,6 +9,7 @@ #define _TRACE_NFS_H #include +#include #define nfs_show_file_type(ftype) \ __print_symbolic(ftype, \ @@ -61,7 +62,7 @@ DECLARE_EVENT_CLASS(nfs_inode_event, __entry->dev = inode->i_sb->s_dev; __entry->fileid = nfsi->fileid; __entry->fhandle = nfs_fhandle_hash(&nfsi->fh); - __entry->version = inode->i_version; + __entry->version = inode_peek_iversion_raw(inode); ), TP_printk( @@ -100,7 +101,7 @@ DECLARE_EVENT_CLASS(nfs_inode_event_done, __entry->fileid = nfsi->fileid; __entry->fhandle = nfs_fhandle_hash(&nfsi->fh); __entry->type = nfs_umode_to_dtype(inode->i_mode); - __entry->version = inode->i_version; + __entry->version = inode_peek_iversion_raw(inode); __entry->size = i_size_read(inode); __entry->nfsi_flags = nfsi->flags; __entry->cache_validity = nfsi->cache_validity; diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 5b5f464f6f2a..f87cbe126fa0 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -23,6 +23,7 @@ #include #include #include +#include #include @@ -753,11 +754,8 @@ static void nfs_inode_add_request(struct inode *inode, struct nfs_page *req) */ spin_lock(&mapping->private_lock); if (!nfs_have_writebacks(inode) && - NFS_PROTO(inode)->have_delegation(inode, FMODE_WRITE)) { - spin_lock(&inode->i_lock); - inode->i_version++; - spin_unlock(&inode->i_lock); - } + NFS_PROTO(inode)->have_delegation(inode, FMODE_WRITE)) + inode_inc_iversion_raw(inode); if (likely(!PageSwapCache(req->wb_page))) { set_bit(PG_MAPPED, &req->wb_flags); SetPagePrivate(req->wb_page); -- 2.30.2