diff options
Diffstat (limited to 'fs')
34 files changed, 313 insertions, 163 deletions
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile index 1e987ac..8664417 100644 --- a/fs/nfs/Makefile +++ b/fs/nfs/Makefile @@ -22,7 +22,7 @@ nfsv3-$(CONFIG_NFS_V3_ACL) += nfs3acl.o obj-$(CONFIG_NFS_V4) += nfsv4.o CFLAGS_nfs4trace.o += -I$(src) nfsv4-y := nfs4proc.o nfs4xdr.o nfs4state.o nfs4renewd.o nfs4super.o nfs4file.o \ - delegation.o idmap.o callback.o callback_xdr.o callback_proc.o \ + delegation.o nfs4idmap.o callback.o callback_xdr.o callback_proc.o \ nfs4namespace.o nfs4getroot.o nfs4client.o nfs4session.o \ dns_resolve.o nfs4trace.o nfsv4-$(CONFIG_NFS_USE_LEGACY_DNS) += cache_lib.o diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c index 1cac3c1..d2554fe 100644 --- a/fs/nfs/blocklayout/blocklayout.c +++ b/fs/nfs/blocklayout/blocklayout.c @@ -890,6 +890,7 @@ static struct pnfs_layoutdriver_type blocklayout_type = { .free_deviceid_node = bl_free_deviceid_node, .pg_read_ops = &bl_pg_read_ops, .pg_write_ops = &bl_pg_write_ops, + .sync = pnfs_generic_sync, }; static int __init nfs4blocklayout_init(void) diff --git a/fs/nfs/blocklayout/dev.c b/fs/nfs/blocklayout/dev.c index 5aed4f9..e535599 100644 --- a/fs/nfs/blocklayout/dev.c +++ b/fs/nfs/blocklayout/dev.c @@ -33,7 +33,7 @@ bl_free_deviceid_node(struct nfs4_deviceid_node *d) container_of(d, struct pnfs_block_dev, node); bl_free_device(dev); - kfree(dev); + kfree_rcu(dev, node.rcu); } static int diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index 351be920..8d129bb 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -128,7 +128,7 @@ nfs41_callback_svc(void *vrqstp) if (try_to_freeze()) continue; - prepare_to_wait(&serv->sv_cb_waitq, &wq, TASK_UNINTERRUPTIBLE); + prepare_to_wait(&serv->sv_cb_waitq, &wq, TASK_INTERRUPTIBLE); spin_lock_bh(&serv->sv_cb_lock); if (!list_empty(&serv->sv_cb_list)) { req = list_first_entry(&serv->sv_cb_list, @@ -142,10 +142,10 @@ nfs41_callback_svc(void *vrqstp) error); } else { spin_unlock_bh(&serv->sv_cb_lock); - /* schedule_timeout to game the hung task watchdog */ - schedule_timeout(60 * HZ); + schedule(); finish_wait(&serv->sv_cb_waitq, &wq); } + flush_signals(current); } return 0; } diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 1987415..892aeff 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -31,7 +31,6 @@ #include <linux/lockd/bind.h> #include <linux/seq_file.h> #include <linux/mount.h> -#include <linux/nfs_idmap.h> #include <linux/vfs.h> #include <linux/inet.h> #include <linux/in6.h> diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index a6ad688..029d688 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -378,7 +378,7 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct if (freeme == NULL) goto out; } - list_add_rcu(&delegation->super_list, &server->delegations); + list_add_tail_rcu(&delegation->super_list, &server->delegations); rcu_assign_pointer(nfsi->delegation, delegation); delegation = NULL; @@ -514,7 +514,7 @@ void nfs_inode_return_delegation_noreclaim(struct inode *inode) delegation = nfs_inode_detach_delegation(inode); if (delegation != NULL) - nfs_do_return_delegation(inode, delegation, 0); + nfs_do_return_delegation(inode, delegation, 1); } /** diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 1e51ecd..b2c8b31 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -543,6 +543,9 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en if (scratch == NULL) return -ENOMEM; + if (buflen == 0) + goto out_nopages; + xdr_init_decode_pages(&stream, &buf, xdr_pages, buflen); xdr_set_scratch_buffer(&stream, page_address(scratch), PAGE_SIZE); @@ -564,6 +567,7 @@ int nfs_readdir_page_filler(nfs_readdir_descriptor_t *desc, struct nfs_entry *en break; } while (!entry->eof); +out_nopages: if (count == 0 || (status == -EBADCOOKIE && entry->eof != 0)) { array = nfs_readdir_get_array(page); if (!IS_ERR(array)) { diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index b2cbc3a..38678d9 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -129,22 +129,25 @@ nfs_direct_good_bytes(struct nfs_direct_req *dreq, struct nfs_pgio_header *hdr) int i; ssize_t count; - WARN_ON_ONCE(hdr->pgio_mirror_idx >= dreq->mirror_count); - - count = dreq->mirrors[hdr->pgio_mirror_idx].count; - if (count + dreq->io_start < hdr->io_start + hdr->good_bytes) { - count = hdr->io_start + hdr->good_bytes - dreq->io_start; - dreq->mirrors[hdr->pgio_mirror_idx].count = count; - } - - /* update the dreq->count by finding the minimum agreed count from all - * mirrors */ - count = dreq->mirrors[0].count; + if (dreq->mirror_count == 1) { + dreq->mirrors[hdr->pgio_mirror_idx].count += hdr->good_bytes; + dreq->count += hdr->good_bytes; + } else { + /* mirrored writes */ + count = dreq->mirrors[hdr->pgio_mirror_idx].count; + if (count + dreq->io_start < hdr->io_start + hdr->good_bytes) { + count = hdr->io_start + hdr->good_bytes - dreq->io_start; + dreq->mirrors[hdr->pgio_mirror_idx].count = count; + } + /* update the dreq->count by finding the minimum agreed count from all + * mirrors */ + count = dreq->mirrors[0].count; - for (i = 1; i < dreq->mirror_count; i++) - count = min(count, dreq->mirrors[i].count); + for (i = 1; i < dreq->mirror_count; i++) + count = min(count, dreq->mirrors[i].count); - dreq->count = count; + dreq->count = count; + } } /* @@ -258,18 +261,11 @@ ssize_t nfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter, loff_t pos) if (!IS_SWAPFILE(inode)) return 0; -#ifndef CONFIG_NFS_SWAP - dprintk("NFS: nfs_direct_IO (%pD) off/no(%Ld/%lu) EINVAL\n", - iocb->ki_filp, (long long) pos, iter->nr_segs); - - return -EINVAL; -#else VM_BUG_ON(iov_iter_count(iter) != PAGE_SIZE); if (iov_iter_rw(iter) == READ) return nfs_file_direct_read(iocb, iter, pos); return nfs_file_direct_write(iocb, iter); -#endif /* CONFIG_NFS_SWAP */ } static void nfs_direct_release_pages(struct page **pages, unsigned int npages) @@ -1030,6 +1026,7 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter) if (i_size_read(inode) < iocb->ki_pos) i_size_write(inode, iocb->ki_pos); spin_unlock(&inode->i_lock); + generic_write_sync(file, pos, result); } } nfs_direct_req_release(dreq); diff --git a/fs/nfs/file.c b/fs/nfs/file.c index c40e436..8b8d83a 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -280,6 +280,7 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) trace_nfs_fsync_enter(inode); + nfs_inode_dio_wait(inode); do { ret = filemap_write_and_wait_range(inode->i_mapping, start, end); if (ret != 0) @@ -782,7 +783,7 @@ do_unlk(struct file *filp, int cmd, struct file_lock *fl, int is_local) * Flush all pending writes before doing anything * with locks.. */ - nfs_sync_mapping(filp->f_mapping); + vfs_fsync(filp, 0); l_ctx = nfs_get_lock_context(nfs_file_open_context(filp)); if (!IS_ERR(l_ctx)) { diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c index 91e88a7..a46bf6d 100644 --- a/fs/nfs/filelayout/filelayout.c +++ b/fs/nfs/filelayout/filelayout.c @@ -258,7 +258,8 @@ filelayout_set_layoutcommit(struct nfs_pgio_header *hdr) hdr->res.verf->committed != NFS_DATA_SYNC) return; - pnfs_set_layoutcommit(hdr); + pnfs_set_layoutcommit(hdr->inode, hdr->lseg, + hdr->mds_offset + hdr->res.count); dprintk("%s inode %lu pls_end_pos %lu\n", __func__, hdr->inode->i_ino, (unsigned long) NFS_I(hdr->inode)->layout->plh_lwb); } @@ -373,7 +374,7 @@ static int filelayout_commit_done_cb(struct rpc_task *task, } if (data->verf.committed == NFS_UNSTABLE) - pnfs_commit_set_layoutcommit(data); + pnfs_set_layoutcommit(data->inode, data->lseg, data->lwb); return 0; } @@ -1086,7 +1087,7 @@ filelayout_alloc_deviceid_node(struct nfs_server *server, } static void -filelayout_free_deveiceid_node(struct nfs4_deviceid_node *d) +filelayout_free_deviceid_node(struct nfs4_deviceid_node *d) { nfs4_fl_free_deviceid(container_of(d, struct nfs4_file_layout_dsaddr, id_node)); } @@ -1137,7 +1138,8 @@ static struct pnfs_layoutdriver_type filelayout_type = { .read_pagelist = filelayout_read_pagelist, .write_pagelist = filelayout_write_pagelist, .alloc_deviceid_node = filelayout_alloc_deviceid_node, - .free_deviceid_node = filelayout_free_deveiceid_node, + .free_deviceid_node = filelayout_free_deviceid_node, + .sync = pnfs_nfs_generic_sync, }; static int __init nfs4filelayout_init(void) diff --git a/fs/nfs/filelayout/filelayoutdev.c b/fs/nfs/filelayout/filelayoutdev.c index 4f372e2..4946ef4 100644 --- a/fs/nfs/filelayout/filelayoutdev.c +++ b/fs/nfs/filelayout/filelayoutdev.c @@ -55,7 +55,7 @@ nfs4_fl_free_deviceid(struct nfs4_file_layout_dsaddr *dsaddr) nfs4_pnfs_ds_put(ds); } kfree(dsaddr->stripe_indices); - kfree(dsaddr); + kfree_rcu(dsaddr, id_node.rcu); } /* Decode opaque device data and return the result */ diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c index 315cc68..7d05089 100644 --- a/fs/nfs/flexfilelayout/flexfilelayout.c +++ b/fs/nfs/flexfilelayout/flexfilelayout.c @@ -11,10 +11,10 @@ #include <linux/module.h> #include <linux/sunrpc/metrics.h> -#include <linux/nfs_idmap.h> #include "flexfilelayout.h" #include "../nfs4session.h" +#include "../nfs4idmap.h" #include "../internal.h" #include "../delegation.h" #include "../nfs4trace.h" @@ -891,7 +891,8 @@ static int ff_layout_read_done_cb(struct rpc_task *task, static void ff_layout_set_layoutcommit(struct nfs_pgio_header *hdr) { - pnfs_set_layoutcommit(hdr); + pnfs_set_layoutcommit(hdr->inode, hdr->lseg, + hdr->mds_offset + hdr->res.count); dprintk("%s inode %lu pls_end_pos %lu\n", __func__, hdr->inode->i_ino, (unsigned long) NFS_I(hdr->inode)->layout->plh_lwb); } @@ -1074,7 +1075,7 @@ static int ff_layout_commit_done_cb(struct rpc_task *task, } if (data->verf.committed == NFS_UNSTABLE) - pnfs_commit_set_layoutcommit(data); + pnfs_set_layoutcommit(data->inode, data->lseg, data->lwb); return 0; } @@ -1414,7 +1415,7 @@ ff_layout_get_ds_info(struct inode *inode) } static void -ff_layout_free_deveiceid_node(struct nfs4_deviceid_node *d) +ff_layout_free_deviceid_node(struct nfs4_deviceid_node *d) { nfs4_ff_layout_free_deviceid(container_of(d, struct nfs4_ff_layout_ds, id_node)); @@ -1498,7 +1499,7 @@ static struct pnfs_layoutdriver_type flexfilelayout_type = { .pg_read_ops = &ff_layout_pg_read_ops, .pg_write_ops = &ff_layout_pg_write_ops, .get_ds_info = ff_layout_get_ds_info, - .free_deviceid_node = ff_layout_free_deveiceid_node, + .free_deviceid_node = ff_layout_free_deviceid_node, .mark_request_commit = pnfs_layout_mark_request_commit, .clear_request_commit = pnfs_generic_clear_request_commit, .scan_commit_lists = pnfs_generic_scan_commit_lists, @@ -1508,6 +1509,7 @@ static struct pnfs_layoutdriver_type flexfilelayout_type = { .write_pagelist = ff_layout_write_pagelist, .alloc_deviceid_node = ff_layout_alloc_deviceid_node, .encode_layoutreturn = ff_layout_encode_layoutreturn, + .sync = pnfs_nfs_generic_sync, }; static int __init nfs4flexfilelayout_init(void) diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c index e2c01f2..77a2d02 100644 --- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c +++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c @@ -30,7 +30,7 @@ void nfs4_ff_layout_free_deviceid(struct nfs4_ff_layout_ds *mirror_ds) { nfs4_print_deviceid(&mirror_ds->id_node.deviceid); nfs4_pnfs_ds_put(mirror_ds->ds); - kfree(mirror_ds); + kfree_rcu(mirror_ds, id_node.rcu); } /* Decode opaque device data and construct new_ds using it */ diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 3689e95..f734562 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -133,6 +133,13 @@ void nfs_evict_inode(struct inode *inode) nfs_clear_inode(inode); } +int nfs_sync_inode(struct inode *inode) +{ + nfs_inode_dio_wait(inode); + return nfs_wb_all(inode); +} +EXPORT_SYMBOL_GPL(nfs_sync_inode); + /** * nfs_sync_mapping - helper to flush all mmapped dirty data to disk */ @@ -192,7 +199,6 @@ void nfs_zap_caches(struct inode *inode) nfs_zap_caches_locked(inode); spin_unlock(&inode->i_lock); } -EXPORT_SYMBOL_GPL(nfs_zap_caches); void nfs_zap_mapping(struct inode *inode, struct address_space *mapping) { @@ -525,10 +531,8 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr) trace_nfs_setattr_enter(inode); /* Write all dirty data */ - if (S_ISREG(inode->i_mode)) { - nfs_inode_dio_wait(inode); - nfs_wb_all(inode); - } + if (S_ISREG(inode->i_mode)) + nfs_sync_inode(inode); fattr = nfs_alloc_fattr(); if (fattr == NULL) @@ -644,8 +648,9 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) trace_nfs_getattr_enter(inode); /* Flush out writes to the server in order to update c/mtime. */ if (S_ISREG(inode->i_mode)) { - nfs_inode_dio_wait(inode); - err = filemap_write_and_wait(inode->i_mapping); + mutex_lock(&inode->i_mutex); + err = nfs_sync_inode(inode); + mutex_unlock(&inode->i_mutex); if (err) goto out; } @@ -1588,6 +1593,19 @@ int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fa } EXPORT_SYMBOL_GPL(nfs_post_op_update_inode_force_wcc); + +static inline bool nfs_fileid_valid(struct nfs_inode *nfsi, + struct nfs_fattr *fattr) +{ + bool ret1 = true, ret2 = true; + + if (fattr->valid & NFS_ATTR_FATTR_FILEID) + ret1 = (nfsi->fileid == fattr->fileid); + if (fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID) + ret2 = (nfsi->fileid == fattr->mounted_on_fileid); + return ret1 || ret2; +} + /* * Many nfs protocol calls return the new file attributes after * an operation. Here we update the inode to reflect the state @@ -1614,7 +1632,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) nfs_display_fhandle_hash(NFS_FH(inode)), atomic_read(&inode->i_count), fattr->valid); - if ((fattr->valid & NFS_ATTR_FATTR_FILEID) && nfsi->fileid != fattr->fileid) { + if (!nfs_fileid_valid(nfsi, fattr)) { printk(KERN_ERR "NFS: server %s error: fileid changed\n" "fsid %s: expected fileid 0x%Lx, got 0x%Lx\n", NFS_SERVER(inode)->nfs_client->cl_hostname, @@ -1819,7 +1837,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) struct inode *nfs_alloc_inode(struct super_block *sb) { struct nfs_inode *nfsi; - nfsi = (struct nfs_inode *)kmem_cache_alloc(nfs_inode_cachep, GFP_KERNEL); + nfsi = kmem_cache_alloc(nfs_inode_cachep, GFP_KERNEL); if (!nfsi) return NULL; nfsi->flags = 0UL; diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index cb17072..3a9e752 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -36,13 +36,16 @@ static int _nfs42_proc_fallocate(struct rpc_message *msg, struct file *filep, loff_t offset, loff_t len) { struct inode *inode = file_inode(filep); + struct nfs_server *server = NFS_SERVER(inode); struct nfs42_falloc_args args = { .falloc_fh = NFS_FH(inode), .falloc_offset = offset, .falloc_length = len, + .falloc_bitmask = server->cache_consistency_bitmask, + }; + struct nfs42_falloc_res res = { + .falloc_server = server, }; - struct nfs42_falloc_res res; - struct nfs_server *server = NFS_SERVER(inode); int status; msg->rpc_argp = &args; @@ -52,8 +55,17 @@ static int _nfs42_proc_fallocate(struct rpc_message *msg, struct file *filep, if (status) return status; - return nfs4_call_sync(server->client, server, msg, - &args.seq_args, &res.seq_res, 0); + res.falloc_fattr = nfs_alloc_fattr(); + if (!res.falloc_fattr) + return -ENOMEM; + + status = nfs4_call_sync(server->client, server, msg, + &args.seq_args, &res.seq_res, 0); + if (status == 0) + status = nfs_post_op_update_inode(inode, res.falloc_fattr); + + kfree(res.falloc_fattr); + return status; } static int nfs42_proc_fallocate(struct rpc_message *msg, struct file *filep, @@ -84,9 +96,13 @@ int nfs42_proc_allocate(struct file *filep, loff_t offset, loff_t len) if (!nfs_server_capable(inode, NFS_CAP_ALLOCATE)) return -EOPNOTSUPP; + mutex_lock(&inode->i_mutex); + err = nfs42_proc_fallocate(&msg, filep, offset, len); if (err == -EOPNOTSUPP) NFS_SERVER(inode)->caps &= ~NFS_CAP_ALLOCATE; + + mutex_unlock(&inode->i_mutex); return err; } @@ -101,9 +117,16 @@ int nfs42_proc_deallocate(struct file *filep, loff_t offset, loff_t len) if (!nfs_server_capable(inode, NFS_CAP_DEALLOCATE)) return -EOPNOTSUPP; + nfs_wb_all(inode); + mutex_lock(&inode->i_mutex); + err = nfs42_proc_fallocate(&msg, filep, offset, len); + if (err == 0) + truncate_pagecache_range(inode, offset, (offset + len) -1); if (err == -EOPNOTSUPP) NFS_SERVER(inode)->caps &= ~NFS_CAP_DEALLOCATE; + + mutex_unlock(&inode->i_mutex); return err; } diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c index 038a7e15..1a25b27 100644 --- a/fs/nfs/nfs42xdr.c +++ b/fs/nfs/nfs42xdr.c @@ -25,16 +25,20 @@ #define NFS4_enc_allocate_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ - encode_allocate_maxsz) + encode_allocate_maxsz + \ + encode_getattr_maxsz) #define NFS4_dec_allocate_sz (compound_decode_hdr_maxsz + \ decode_putfh_maxsz + \ - decode_allocate_maxsz) + decode_allocate_maxsz + \ + decode_getattr_maxsz) #define NFS4_enc_deallocate_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ - encode_deallocate_maxsz) + encode_deallocate_maxsz + \ + encode_getattr_maxsz) #define NFS4_dec_deallocate_sz (compound_decode_hdr_maxsz + \ decode_putfh_maxsz + \ - decode_deallocate_maxsz) + decode_deallocate_maxsz + \ + decode_getattr_maxsz) #define NFS4_enc_seek_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ encode_seek_maxsz) @@ -92,6 +96,7 @@ static void nfs4_xdr_enc_allocate(struct rpc_rqst *req, encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->falloc_fh, &hdr); encode_allocate(xdr, args, &hdr); + encode_getfattr(xdr, args->falloc_bitmask, &hdr); encode_nops(&hdr); } @@ -110,6 +115,7 @@ static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req, encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->falloc_fh, &hdr); encode_deallocate(xdr, args, &hdr); + encode_getfattr(xdr, args->falloc_bitmask, &hdr); encode_nops(&hdr); } @@ -183,6 +189,9 @@ static int nfs4_xdr_dec_allocate(struct rpc_rqst *rqstp, if (status) goto out; status = decode_allocate(xdr, res); + if (status) + goto out; + decode_getfattr(xdr, res->falloc_fattr, res->falloc_server); out: return status; } @@ -207,6 +216,9 @@ static int nfs4_xdr_dec_deallocate(struct rpc_rqst *rqstp, if (status) goto out; status = decode_deallocate(xdr, res); + if (status) + goto out; + decode_getfattr(xdr, res->falloc_fattr, res->falloc_server); out: return status; } diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 51c2dbd..e42be52 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -4,7 +4,6 @@ */ #include <linux/module.h> #include <linux/nfs_fs.h> -#include <linux/nfs_idmap.h> #include <linux/nfs_mount.h> #include <linux/sunrpc/addr.h> #include <linux/sunrpc/auth.h> @@ -15,6 +14,7 @@ #include "callback.h" #include "delegation.h" #include "nfs4session.h" +#include "nfs4idmap.h" #include "pnfs.h" #include "netns.h" diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c index 619eca3..f58c17b 100644 --- a/fs/nfs/nfs4file.c +++ b/fs/nfs/nfs4file.c @@ -10,6 +10,8 @@ #include "fscache.h" #include "pnfs.h" +#include "nfstrace.h" + #ifdef CONFIG_NFS_V4_2 #include "nfs42.h" #endif @@ -57,7 +59,7 @@ nfs4_file_open(struct inode *inode, struct file *filp) if (openflags & O_TRUNC) { attr.ia_valid |= ATTR_SIZE; attr.ia_size = 0; - nfs_wb_all(inode); + nfs_sync_inode(inode); } inode = NFS_PROTO(dir)->open_context(dir, ctx, openflags, &attr, &opened); @@ -100,6 +102,9 @@ nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) int ret; struct inode *inode = file_inode(file); + trace_nfs_fsync_enter(inode); + + nfs_inode_dio_wait(inode); do { ret = filemap_write_and_wait_range(inode->i_mapping, start, end); if (ret != 0) @@ -107,7 +112,7 @@ nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) mutex_lock(&inode->i_mutex); ret = nfs_file_fsync_commit(file, start, end, datasync); if (!ret) - ret = pnfs_layoutcommit_inode(inode, true); + ret = pnfs_sync_inode(inode, !!datasync); mutex_unlock(&inode->i_mutex); /* * If nfs_file_fsync_commit detected a server reboot, then @@ -118,6 +123,7 @@ nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync) end = LLONG_MAX; } while (ret == -EAGAIN); + trace_nfs_fsync_exit(inode, ret); return ret; } @@ -152,15 +158,9 @@ static long nfs42_fallocate(struct file *filep, int mode, loff_t offset, loff_t if (ret < 0) return ret; - mutex_lock(&inode->i_mutex); if (mode & FALLOC_FL_PUNCH_HOLE) - ret = nfs42_proc_deallocate(filep, offset, len); - else - ret = nfs42_proc_allocate(filep, offset, len); - mutex_unlock(&inode->i_mutex); - - nfs_zap_caches(inode); - return ret; + return nfs42_proc_deallocate(filep, offset, len); + return nfs42_proc_allocate(filep, offset, len); } #endif /* CONFIG_NFS_V4_2 */ diff --git a/fs/nfs/idmap.c b/fs/nfs/nfs4idmap.c index 857e2a9..2e1737c 100644 --- a/fs/nfs/idmap.c +++ b/fs/nfs/nfs4idmap.c @@ -36,7 +36,6 @@ #include <linux/types.h> #include <linux/parser.h> #include <linux/fs.h> -#include <linux/nfs_idmap.h> #include <net/net_namespace.h> #include <linux/sunrpc/rpc_pipe_fs.h> #include <linux/nfs_fs.h> @@ -49,6 +48,7 @@ #include "internal.h" #include "netns.h" +#include "nfs4idmap.h" #include "nfs4trace.h" #define NFS_UINT_MAXLEN 11 diff --git a/fs/nfs/nfs4idmap.h b/fs/nfs/nfs4idmap.h new file mode 100644 index 0000000..de44d73 --- /dev/null +++ b/fs/nfs/nfs4idmap.h @@ -0,0 +1,68 @@ +/* + * fs/nfs/nfs4idmap.h + * + * UID and GID to name mapping for clients. + * + * Copyright (c) 2002 The Regents of the University of Michigan. + * All rights reserved. + * + * Marius Aamodt Eriksen <marius@umich.edu> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef NFS_IDMAP_H +#define NFS_IDMAP_H + +#include <linux/uidgid.h> +#include <uapi/linux/nfs_idmap.h> + + +/* Forward declaration to make this header independent of others */ +struct nfs_client; +struct nfs_server; +struct nfs_fattr; +struct nfs4_string; + +int nfs_idmap_init(void); +void nfs_idmap_quit(void); +int nfs_idmap_new(struct nfs_client *); +void nfs_idmap_delete(struct nfs_client *); + +void nfs_fattr_init_names(struct nfs_fattr *fattr, + struct nfs4_string *owner_name, + struct nfs4_string *group_name); +void nfs_fattr_free_names(struct nfs_fattr *); +void nfs_fattr_map_and_free_names(struct nfs_server *, struct nfs_fattr *); + +int nfs_map_name_to_uid(const struct nfs_server *, const char *, size_t, kuid_t *); +int nfs_map_group_to_gid(const struct nfs_server *, const char *, size_t, kgid_t *); +int nfs_map_uid_to_name(const struct nfs_server *, kuid_t, char *, size_t); +int nfs_map_gid_to_group(const struct nfs_server *, kgid_t, char *, size_t); + +int nfs_map_string_to_numeric(const char *name, size_t namelen, __u32 *res); + +extern unsigned int nfs_idmap_cache_timeout; +#endif /* NFS_IDMAP_H */ diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 98e533f..45b35b9 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -51,7 +51,6 @@ #include <linux/namei.h> #include <linux/mount.h> #include <linux/module.h> -#include <linux/nfs_idmap.h> #include <linux/xattr.h> #include <linux/utsname.h> #include <linux/freezer.h> @@ -63,6 +62,7 @@ #include "callback.h" #include "pnfs.h" #include "netns.h" +#include "nfs4idmap.h" #include "nfs4session.h" #include "fscache.h" @@ -185,7 +185,8 @@ const u32 nfs4_fattr_bitmap[3] = { | FATTR4_WORD1_SPACE_USED | FATTR4_WORD1_TIME_ACCESS | FATTR4_WORD1_TIME_METADATA - | FATTR4_WORD1_TIME_MODIFY, + | FATTR4_WORD1_TIME_MODIFY + | FATTR4_WORD1_MOUNTED_ON_FILEID, #ifdef CONFIG_NFS_V4_SECURITY_LABEL FATTR4_WORD2_SECURITY_LABEL #endif @@ -3095,16 +3096,13 @@ int nfs4_proc_get_rootfh(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *info, bool auth_probe) { - int status; + int status = 0; - switch (auth_probe) { - case false: + if (!auth_probe) status = nfs4_lookup_root(server, fhandle, info); - if (status != -NFS4ERR_WRONGSEC) - break; - default: + + if (auth_probe || status == NFS4ERR_WRONGSEC) status = nfs4_do_find_root_sec(server, fhandle, info); - } if (status == 0) status = nfs4_server_capabilities(server, fhandle); @@ -7944,6 +7942,8 @@ _nfs4_proc_getdeviceinfo(struct nfs_server *server, { struct nfs4_getdeviceinfo_args args = { .pdev = pdev, + .notify_types = NOTIFY_DEVICEID4_CHANGE | + NOTIFY_DEVICEID4_DELETE, }; struct nfs4_getdeviceinfo_res res = { .pdev = pdev, @@ -7958,6 +7958,11 @@ _nfs4_proc_getdeviceinfo(struct nfs_server *server, dprintk("--> %s\n", __func__); status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); + if (res.notification & ~args.notify_types) + dprintk("%s: unsupported notification\n", __func__); + if (res.notification != args.notify_types) + pdev->nocache = 1; + dprintk("<-- %s status=%d\n", __func__, status); return status; diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c index 3b2b205..2782cfc 100644 --- a/fs/nfs/nfs4state.c +++ b/fs/nfs/nfs4state.c @@ -42,7 +42,6 @@ #include <linux/slab.h> #include <linux/fs.h> #include <linux/nfs_fs.h> -#include <linux/nfs_idmap.h> #include <linux/kthread.h> #include <linux/module.h> #include <linux/random.h> @@ -57,6 +56,7 @@ #include "callback.h" #include "delegation.h" #include "internal.h" +#include "nfs4idmap.h" #include "nfs4session.h" #include "pnfs.h" #include "netns.h" diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c index 75090fe..6fb7cb6 100644 --- a/fs/nfs/nfs4super.c +++ b/fs/nfs/nfs4super.c @@ -3,12 +3,12 @@ */ #include <linux/init.h> #include <linux/module.h> -#include <linux/nfs_idmap.h> #include <linux/nfs4_mount.h> #include <linux/nfs_fs.h> #include "delegation.h" #include "internal.h" #include "nfs4_fs.h" +#include "nfs4idmap.h" #include "dns_resolve.h" #include "pnfs.h" #include "nfs.h" @@ -91,10 +91,11 @@ static void nfs4_evict_inode(struct inode *inode) { truncate_inode_pages_final(&inode->i_data); clear_inode(inode); - pnfs_return_layout(inode); - pnfs_destroy_layout(NFS_I(inode)); /* If we are holding a delegation, return it! */ nfs_inode_return_delegation_noreclaim(inode); + /* Note that above delegreturn would trigger pnfs return-on-close */ + pnfs_return_layout(inode); + pnfs_destroy_layout(NFS_I(inode)); /* First call standard NFS clear_inode() code */ nfs_clear_inode(inode); } diff --git a/fs/nfs/nfs4sysctl.c b/fs/nfs/nfs4sysctl.c index b6ebe7e..0fbd3ab 100644 --- a/fs/nfs/nfs4sysctl.c +++ b/fs/nfs/nfs4sysctl.c @@ -6,10 +6,10 @@ * Copyright (c) 2006 Trond Myklebust <Trond.Myklebust@netapp.com> */ #include <linux/sysctl.h> -#include <linux/nfs_idmap.h> #include <linux/nfs_fs.h> #include "nfs4_fs.h" +#include "nfs4idmap.h" #include "callback.h" static const int nfs_set_port_min = 0; diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 5c399ec..0aea978 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -52,10 +52,10 @@ #include <linux/nfs.h> #include <linux/nfs4.h> #include <linux/nfs_fs.h> -#include <linux/nfs_idmap.h> #include "nfs4_fs.h" #include "internal.h" +#include "nfs4idmap.h" #include "nfs4session.h" #include "pnfs.h" #include "netns.h" @@ -1920,7 +1920,7 @@ encode_getdeviceinfo(struct xdr_stream *xdr, p = reserve_space(xdr, 4 + 4); *p++ = cpu_to_be32(1); /* bitmap length */ - *p++ = cpu_to_be32(NOTIFY_DEVICEID4_CHANGE | NOTIFY_DEVICEID4_DELETE); + *p++ = cpu_to_be32(args->notify_types); } static void @@ -5753,8 +5753,9 @@ out_overflow: #if defined(CONFIG_NFS_V4_1) static int decode_getdeviceinfo(struct xdr_stream *xdr, - struct pnfs_device *pdev) + struct nfs4_getdeviceinfo_res *res) { + struct pnfs_device *pdev = res->pdev; __be32 *p; uint32_t len, type; int status; @@ -5802,12 +5803,7 @@ static int decode_getdeviceinfo(struct xdr_stream *xdr, if (unlikely(!p)) goto out_overflow; - if (be32_to_cpup(p++) & - ~(NOTIFY_DEVICEID4_CHANGE | NOTIFY_DEVICEID4_DELETE)) { - dprintk("%s: unsupported notification\n", - __func__); - } - + res->notification = be32_to_cpup(p++); for (i = 1; i < len; i++) { if (be32_to_cpup(p++)) { dprintk("%s: unsupported notification\n", @@ -7061,7 +7057,7 @@ static int nfs4_xdr_dec_getdeviceinfo(struct rpc_rqst *rqstp, status = decode_sequence(xdr, &res->seq_res, rqstp); if (status != 0) goto out; - status = decode_getdeviceinfo(xdr, res->pdev); + status = decode_getdeviceinfo(xdr, res); out: return status; } @@ -7365,6 +7361,11 @@ nfs4_stat_to_errno(int stat) .p_name = #proc, \ } +#define STUB(proc) \ +[NFSPROC4_CLNT_##proc] = { \ + .p_name = #proc, \ +} + struct rpc_procinfo nfs4_procedures[] = { PROC(READ, enc_read, dec_read), PROC(WRITE, enc_write, dec_write), @@ -7417,6 +7418,7 @@ struct rpc_procinfo nfs4_procedures[] = { PROC(SECINFO_NO_NAME, enc_secinfo_no_name, dec_secinfo_no_name), PROC(TEST_STATEID, enc_test_stateid, dec_test_stateid), PROC(FREE_STATEID, enc_free_stateid, dec_free_stateid), + STUB(GETDEVICELIST), PROC(BIND_CONN_TO_SESSION, enc_bind_conn_to_session, dec_bind_conn_to_session), PROC(DESTROY_CLIENTID, enc_destroy_clientid, dec_destroy_clientid), diff --git a/fs/nfs/nfstrace.c b/fs/nfs/nfstrace.c index 4eb0aea..c74f7af 100644 --- a/fs/nfs/nfstrace.c +++ b/fs/nfs/nfstrace.c @@ -7,3 +7,6 @@ #define CREATE_TRACE_POINTS #include "nfstrace.h" + +EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_fsync_enter); +EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_fsync_exit); diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c index 24e1d74..5aaed36 100644 --- a/fs/nfs/objlayout/objio_osd.c +++ b/fs/nfs/objlayout/objio_osd.c @@ -57,7 +57,7 @@ objio_free_deviceid_node(struct nfs4_deviceid_node *d) dprintk("%s: free od=%p\n", __func__, de->od.od); osduld_put_device(de->od.od); - kfree(de); + kfree_rcu(d, rcu); } struct objio_segment { @@ -637,6 +637,8 @@ static struct pnfs_layoutdriver_type objlayout_type = { .pg_read_ops = &objio_pg_read_ops, .pg_write_ops = &objio_pg_write_ops, + .sync = pnfs_generic_sync, + .free_deviceid_node = objio_free_deviceid_node, .encode_layoutcommit = objlayout_encode_layoutcommit, diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 4f802b0..2306062 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1090,6 +1090,7 @@ bool pnfs_roc(struct inode *ino) pnfs_get_layout_hdr(lo); /* matched in pnfs_roc_release */ spin_unlock(&ino->i_lock); pnfs_free_lseg_list(&tmp_list); + pnfs_layoutcommit_inode(ino, true); return true; out_noroc: @@ -1104,8 +1105,10 @@ out_noroc: } } spin_unlock(&ino->i_lock); - if (layoutreturn) + if (layoutreturn) { + pnfs_layoutcommit_inode(ino, true); pnfs_send_layoutreturn(lo, stateid, IOMODE_ANY, true); + } return false; } @@ -1841,7 +1844,8 @@ void pnfs_ld_write_done(struct nfs_pgio_header *hdr) { trace_nfs4_pnfs_write(hdr, hdr->pnfs_error); if (!hdr->pnfs_error) { - pnfs_set_layoutcommit(hdr); + pnfs_set_layoutcommit(hdr->inode, hdr->lseg, + hdr->mds_offset + hdr->res.count); hdr->mds_ops->rpc_call_done(&hdr->task, hdr); } else pnfs_ld_handle_write_error(hdr); @@ -1902,7 +1906,6 @@ static void pnfs_writehdr_free(struct nfs_pgio_header *hdr) pnfs_put_lseg(hdr->lseg); nfs_pgio_header_free(hdr); } -EXPORT_SYMBOL_GPL(pnfs_writehdr_free); int pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc) @@ -2032,7 +2035,6 @@ static void pnfs_readhdr_free(struct nfs_pgio_header *hdr) pnfs_put_lseg(hdr->lseg); nfs_pgio_header_free(hdr); } -EXPORT_SYMBOL_GPL(pnfs_readhdr_free); int pnfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc) @@ -2099,64 +2101,34 @@ void pnfs_set_lo_fail(struct pnfs_layout_segment *lseg) EXPORT_SYMBOL_GPL(pnfs_set_lo_fail); void -pnfs_set_layoutcommit(struct nfs_pgio_header *hdr) +pnfs_set_layoutcommit(struct inode *inode, struct pnfs_layout_segment *lseg, + loff_t end_pos) { - struct inode *inode = hdr->inode; struct nfs_inode *nfsi = NFS_I(inode); - loff_t end_pos = hdr->mds_offset + hdr->res.count; bool mark_as_dirty = false; spin_lock(&inode->i_lock); if (!test_and_set_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) { - mark_as_dirty = true; - dprintk("%s: Set layoutcommit for inode %lu ", - __func__, inode->i_ino); - } - if (!test_and_set_bit(NFS_LSEG_LAYOUTCOMMIT, &hdr->lseg->pls_flags)) { - /* references matched in nfs4_layoutcommit_release */ - pnfs_get_lseg(hdr->lseg); - } - if (end_pos > nfsi->layout->plh_lwb) nfsi->layout->plh_lwb = end_pos; - spin_unlock(&inode->i_lock); - dprintk("%s: lseg %p end_pos %llu\n", - __func__, hdr->lseg, nfsi->layout->plh_lwb); - - /* if pnfs_layoutcommit_inode() runs between inode locks, the next one - * will be a noop because NFS_INO_LAYOUTCOMMIT will not be set */ - if (mark_as_dirty) - mark_inode_dirty_sync(inode); -} -EXPORT_SYMBOL_GPL(pnfs_set_layoutcommit); - -void pnfs_commit_set_layoutcommit(struct nfs_commit_data *data) -{ - struct inode *inode = data->inode; - struct nfs_inode *nfsi = NFS_I(inode); - bool mark_as_dirty = false; - - spin_lock(&inode->i_lock); - if (!test_and_set_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags)) { mark_as_dirty = true; dprintk("%s: Set layoutcommit for inode %lu ", __func__, inode->i_ino); - } - if (!test_and_set_bit(NFS_LSEG_LAYOUTCOMMIT, &data->lseg->pls_flags)) { + } else if (end_pos > nfsi->layout->plh_lwb) + nfsi->layout->plh_lwb = end_pos; + if (!test_and_set_bit(NFS_LSEG_LAYOUTCOMMIT, &lseg->pls_flags)) { /* references matched in nfs4_layoutcommit_release */ - pnfs_get_lseg(data->lseg); + pnfs_get_lseg(lseg); } - if (data->lwb > nfsi->layout->plh_lwb) - nfsi->layout->plh_lwb = data->lwb; spin_unlock(&inode->i_lock); dprintk("%s: lseg %p end_pos %llu\n", - __func__, data->lseg, nfsi->layout->plh_lwb); + __func__, lseg, nfsi->layout->plh_lwb); /* if pnfs_layoutcommit_inode() runs between inode locks, the next one * will be a noop because NFS_INO_LAYOUTCOMMIT will not be set */ if (mark_as_dirty) mark_inode_dirty_sync(inode); } -EXPORT_SYMBOL_GPL(pnfs_commit_set_layoutcommit); +EXPORT_SYMBOL_GPL(pnfs_set_layoutcommit); void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data) { @@ -2216,7 +2188,6 @@ pnfs_layoutcommit_inode(struct inode *inode, bool sync) pnfs_list_write_lseg(inode, &data->lseg_list); end_pos = nfsi->layout->plh_lwb; - nfsi->layout->plh_lwb = 0; nfs4_stateid_copy(&data->args.stateid, &nfsi->layout->plh_stateid); spin_unlock(&inode->i_lock); @@ -2233,11 +2204,11 @@ pnfs_layoutcommit_inode(struct inode *inode, bool sync) status = ld->prepare_layoutcommit(&data->args); if (status) { spin_lock(&inode->i_lock); - if (end_pos < nfsi->layout->plh_lwb) + set_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags); + if (end_pos > nfsi->layout->plh_lwb) nfsi->layout->plh_lwb = end_pos; spin_unlock(&inode->i_lock); put_rpccred(data->cred); - set_bit(NFS_INO_LAYOUTCOMMIT, &nfsi->flags); goto clear_layoutcommitting; } } @@ -2258,6 +2229,13 @@ clear_layoutcommitting: } EXPORT_SYMBOL_GPL(pnfs_layoutcommit_inode); +int +pnfs_generic_sync(struct inode *inode, bool datasync) +{ + return pnfs_layoutcommit_inode(inode, true); +} +EXPORT_SYMBOL_GPL(pnfs_generic_sync); + struct nfs4_threshold *pnfs_mdsthreshold_alloc(void) { struct nfs4_threshold *thp; diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 084c914..1e6308f 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -155,6 +155,8 @@ struct pnfs_layoutdriver_type { int how, struct nfs_commit_info *cinfo); + int (*sync)(struct inode *inode, bool datasync); + /* * Return PNFS_ATTEMPTED to indicate the layout code has attempted * I/O, else return PNFS_NOT_ATTEMPTED to fall back to normal NFS @@ -203,6 +205,7 @@ struct pnfs_device { struct page **pages; unsigned int pgbase; unsigned int pglen; /* reply buffer length */ + unsigned char nocache : 1;/* May not be cached */ }; #define NFS4_PNFS_GETDEVLIST_MAXNUM 16 @@ -263,10 +266,11 @@ bool pnfs_roc(struct inode *ino); void pnfs_roc_release(struct inode *ino); void pnfs_roc_set_barrier(struct inode *ino, u32 barrier); bool pnfs_roc_drain(struct inode *ino, u32 *barrier, struct rpc_task *task); -void pnfs_set_layoutcommit(struct nfs_pgio_header *); -void pnfs_commit_set_layoutcommit(struct nfs_commit_data *data); +void pnfs_set_layoutcommit(struct inode *, struct pnfs_layout_segment *, loff_t); void pnfs_cleanup_layoutcommit(struct nfs4_layoutcommit_data *data); int pnfs_layoutcommit_inode(struct inode *inode, bool sync); +int pnfs_generic_sync(struct inode *inode, bool datasync); +int pnfs_nfs_generic_sync(struct inode *inode, bool datasync); int _pnfs_return_layout(struct inode *); int pnfs_commit_and_return_layout(struct inode *); void pnfs_ld_write_done(struct nfs_pgio_header *); @@ -291,6 +295,7 @@ void pnfs_error_mark_layout_for_return(struct inode *inode, enum { NFS_DEVICEID_INVALID = 0, /* set when MDS clientid recalled */ NFS_DEVICEID_UNAVAILABLE, /* device temporarily unavailable */ + NFS_DEVICEID_NOCACHE, /* device may not be cached */ }; /* pnfs_dev.c */ @@ -302,6 +307,7 @@ struct nfs4_deviceid_node { unsigned long flags; unsigned long timestamp_unavailable; struct nfs4_deviceid deviceid; + struct rcu_head rcu; atomic_t ref; }; @@ -486,6 +492,14 @@ pnfs_ld_read_whole_page(struct inode *inode) return NFS_SERVER(inode)->pnfs_curr_ld->flags & PNFS_READ_WHOLE_PAGE; } +static inline int +pnfs_sync_inode(struct inode *inode, bool datasync) +{ + if (!pnfs_enabled_sb(NFS_SERVER(inode))) + return 0; + return NFS_SERVER(inode)->pnfs_curr_ld->sync(inode, datasync); +} + static inline bool pnfs_layoutcommit_outstanding(struct inode *inode) { @@ -568,6 +582,12 @@ pnfs_ld_read_whole_page(struct inode *inode) return false; } +static inline int +pnfs_sync_inode(struct inode *inode, bool datasync) +{ + return 0; +} + static inline bool pnfs_roc(struct inode *ino) { diff --git a/fs/nfs/pnfs_dev.c b/fs/nfs/pnfs_dev.c index aa2ec00..2961fcd 100644 --- a/fs/nfs/pnfs_dev.c +++ b/fs/nfs/pnfs_dev.c @@ -149,6 +149,8 @@ nfs4_get_device_info(struct nfs_server *server, */ d = server->pnfs_curr_ld->alloc_deviceid_node(server, pdev, gfp_flags); + if (d && pdev->nocache) + set_bit(NFS_DEVICEID_NOCACHE, &d->flags); out_free_pages: for (i = 0; i < max_pages; i++) @@ -175,8 +177,8 @@ __nfs4_find_get_deviceid(struct nfs_server *server, rcu_read_lock(); d = _lookup_deviceid(server->pnfs_curr_ld, server->nfs_client, id, hash); - if (d != NULL) - atomic_inc(&d->ref); + if (d != NULL && !atomic_inc_not_zero(&d->ref)) + d = NULL; rcu_read_unlock(); return d; } @@ -235,12 +237,11 @@ nfs4_delete_deviceid(const struct pnfs_layoutdriver_type *ld, return; } hlist_del_init_rcu(&d->node); + clear_bit(NFS_DEVICEID_NOCACHE, &d->flags); spin_unlock(&nfs4_deviceid_lock); - synchronize_rcu(); /* balance the initial ref set in pnfs_insert_deviceid */ - if (atomic_dec_and_test(&d->ref)) - d->ld->free_deviceid_node(d); + nfs4_put_deviceid_node(d); } EXPORT_SYMBOL_GPL(nfs4_delete_deviceid); @@ -271,6 +272,11 @@ EXPORT_SYMBOL_GPL(nfs4_init_deviceid_node); bool nfs4_put_deviceid_node(struct nfs4_deviceid_node *d) { + if (test_bit(NFS_DEVICEID_NOCACHE, &d->flags)) { + if (atomic_add_unless(&d->ref, -1, 2)) + return false; + nfs4_delete_deviceid(d->ld, d->nfs_client, &d->deviceid); + } if (!atomic_dec_and_test(&d->ref)) return false; d->ld->free_deviceid_node(d); @@ -314,6 +320,7 @@ _deviceid_purge_client(const struct nfs_client *clp, long hash) if (d->nfs_client == clp && atomic_read(&d->ref)) { hlist_del_init_rcu(&d->node); hlist_add_head(&d->tmpnode, &tmp); + clear_bit(NFS_DEVICEID_NOCACHE, &d->flags); } rcu_read_unlock(); spin_unlock(&nfs4_deviceid_lock); @@ -321,12 +328,10 @@ _deviceid_purge_client(const struct nfs_client *clp, long hash) if (hlist_empty(&tmp)) return; - synchronize_rcu(); while (!hlist_empty(&tmp)) { d = hlist_entry(tmp.first, struct nfs4_deviceid_node, tmpnode); hlist_del(&d->tmpnode); - if (atomic_dec_and_test(&d->ref)) - d->ld->free_deviceid_node(d); + nfs4_put_deviceid_node(d); } } diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c index 54e36b3..f37e25b 100644 --- a/fs/nfs/pnfs_nfs.c +++ b/fs/nfs/pnfs_nfs.c @@ -561,7 +561,7 @@ static bool load_v3_ds_connect(void) return(get_v3_ds_connect != NULL); } -void __exit nfs4_pnfs_v3_ds_connect_unload(void) +void nfs4_pnfs_v3_ds_connect_unload(void) { if (get_v3_ds_connect) { symbol_put(nfs3_set_ds_client); @@ -868,3 +868,13 @@ pnfs_layout_mark_request_commit(struct nfs_page *req, nfs_request_add_commit_list(req, list, cinfo); } EXPORT_SYMBOL_GPL(pnfs_layout_mark_request_commit); + +int +pnfs_nfs_generic_sync(struct inode *inode, bool datasync) +{ + if (datasync) + return 0; + return pnfs_layoutcommit_inode(inode, true); +} +EXPORT_SYMBOL_GPL(pnfs_nfs_generic_sync); + diff --git a/fs/nfs/read.c b/fs/nfs/read.c index a5b7427..ae0ff7a 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -284,7 +284,7 @@ int nfs_readpage(struct file *file, struct page *page) dprintk("NFS: nfs_readpage (%p %ld@%lu)\n", page, PAGE_CACHE_SIZE, page_file_index(page)); nfs_inc_stats(inode, NFSIOS_VFSREADPAGE); - nfs_inc_stats(inode, NFSIOS_READPAGES); + nfs_add_stats(inode, NFSIOS_READPAGES, 1); /* * Try to flush any pending writes to the file.. diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 21f8f52..f175b83 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -43,7 +43,6 @@ #include <linux/seq_file.h> #include <linux/mount.h> #include <linux/namei.h> -#include <linux/nfs_idmap.h> #include <linux/vfs.h> #include <linux/inet.h> #include <linux/in6.h> @@ -2193,7 +2192,7 @@ nfs_compare_remount_data(struct nfs_server *nfss, data->version != nfss->nfs_client->rpc_ops->version || data->minorversion != nfss->nfs_client->cl_minorversion || data->retrans != nfss->client->cl_timeout->to_retries || - data->selected_flavor != nfss->client->cl_auth->au_flavor || + !nfs_auth_info_match(&data->auth_info, nfss->client->cl_auth->au_flavor) || data->acregmin != nfss->acregmin / HZ || data->acregmax != nfss->acregmax / HZ || data->acdirmin != nfss->acdirmin / HZ || @@ -2241,7 +2240,6 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data) data->wsize = nfss->wsize; data->retrans = nfss->client->cl_timeout->to_retries; data->selected_flavor = nfss->client->cl_auth->au_flavor; - data->auth_info = nfss->auth_info; data->acregmin = nfss->acregmin / HZ; data->acregmax = nfss->acregmax / HZ; data->acdirmin = nfss->acdirmin / HZ; diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 3612b46..d12a4be 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -580,7 +580,7 @@ static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, st int ret; nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGE); - nfs_inc_stats(inode, NFSIOS_WRITEPAGES); + nfs_add_stats(inode, NFSIOS_WRITEPAGES, 1); nfs_pageio_cond_complete(pgio, page_file_index(page)); ret = nfs_page_async_flush(pgio, page, wbc->sync_mode == WB_SYNC_NONE); @@ -1840,17 +1840,16 @@ EXPORT_SYMBOL_GPL(nfs_write_inode); */ int nfs_wb_all(struct inode *inode) { - struct writeback_control wbc = { - .sync_mode = WB_SYNC_ALL, - .nr_to_write = LONG_MAX, - .range_start = 0, - .range_end = LLONG_MAX, - }; int ret; trace_nfs_writeback_inode_enter(inode); - ret = sync_inode(inode, &wbc); + ret = filemap_write_and_wait(inode->i_mapping); + if (!ret) { + ret = nfs_commit_inode(inode, FLUSH_SYNC); + if (!ret) + pnfs_sync_inode(inode, true); + } trace_nfs_writeback_inode_exit(inode, ret); return ret; |
