diff options
author | Dave Kleikamp <shaggy@austin.ibm.com> | 2006-01-24 14:34:47 -0600 |
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committer | Dave Kleikamp <shaggy@austin.ibm.com> | 2006-01-24 14:34:47 -0600 |
commit | 0a0fc0ddbe732779366ab6b1b879f62195e65967 (patch) | |
tree | 7b42490a676cf39ae0691b6859ecf7fd410f229b /fs/nfs/inode.c | |
parent | 4d5dbd0945d9e0833dd7964a3d6ee33157f7cc7a (diff) | |
parent | 3ee68c4af3fd7228c1be63254b9f884614f9ebb2 (diff) | |
download | op-kernel-dev-0a0fc0ddbe732779366ab6b1b879f62195e65967.zip op-kernel-dev-0a0fc0ddbe732779366ab6b1b879f62195e65967.tar.gz |
Merge with /home/shaggy/git/linus-clean/
Diffstat (limited to 'fs/nfs/inode.c')
-rw-r--r-- | fs/nfs/inode.c | 304 |
1 files changed, 180 insertions, 124 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index 6391d89..a77ee95 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -40,6 +40,7 @@ #include <asm/uaccess.h> #include "nfs4_fs.h" +#include "callback.h" #include "delegation.h" #define NFSDBG_FACILITY NFSDBG_VFS @@ -54,7 +55,7 @@ #define NFS_MAX_READAHEAD (RPC_DEF_SLOT_TABLE - 1) static void nfs_invalidate_inode(struct inode *); -static int nfs_update_inode(struct inode *, struct nfs_fattr *, unsigned long); +static int nfs_update_inode(struct inode *, struct nfs_fattr *); static struct inode *nfs_alloc_inode(struct super_block *sb); static void nfs_destroy_inode(struct inode *); @@ -221,10 +222,10 @@ nfs_calc_block_size(u64 tsize) static inline unsigned long nfs_block_size(unsigned long bsize, unsigned char *nrbitsp) { - if (bsize < 1024) - bsize = NFS_DEF_FILE_IO_BUFFER_SIZE; - else if (bsize >= NFS_MAX_FILE_IO_BUFFER_SIZE) - bsize = NFS_MAX_FILE_IO_BUFFER_SIZE; + if (bsize < NFS_MIN_FILE_IO_SIZE) + bsize = NFS_DEF_FILE_IO_SIZE; + else if (bsize >= NFS_MAX_FILE_IO_SIZE) + bsize = NFS_MAX_FILE_IO_SIZE; return nfs_block_bits(bsize, nrbitsp); } @@ -307,20 +308,15 @@ nfs_sb_init(struct super_block *sb, rpc_authflavor_t authflavor) max_rpc_payload = nfs_block_size(rpc_max_payload(server->client), NULL); if (server->rsize > max_rpc_payload) server->rsize = max_rpc_payload; - if (server->wsize > max_rpc_payload) - server->wsize = max_rpc_payload; - + if (server->rsize > NFS_MAX_FILE_IO_SIZE) + server->rsize = NFS_MAX_FILE_IO_SIZE; server->rpages = (server->rsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - if (server->rpages > NFS_READ_MAXIOV) { - server->rpages = NFS_READ_MAXIOV; - server->rsize = server->rpages << PAGE_CACHE_SHIFT; - } + if (server->wsize > max_rpc_payload) + server->wsize = max_rpc_payload; + if (server->wsize > NFS_MAX_FILE_IO_SIZE) + server->wsize = NFS_MAX_FILE_IO_SIZE; server->wpages = (server->wsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - if (server->wpages > NFS_WRITE_MAXIOV) { - server->wpages = NFS_WRITE_MAXIOV; - server->wsize = server->wpages << PAGE_CACHE_SHIFT; - } if (sb->s_blocksize == 0) sb->s_blocksize = nfs_block_bits(server->wsize, @@ -417,7 +413,6 @@ nfs_create_client(struct nfs_server *server, const struct nfs_mount_data *data) clnt->cl_intr = 1; clnt->cl_softrtry = 1; - clnt->cl_chatty = 1; return clnt; @@ -575,11 +570,10 @@ nfs_statfs(struct super_block *sb, struct kstatfs *buf) buf->f_namelen = server->namelen; out: unlock_kernel(); - return 0; out_err: - printk(KERN_WARNING "nfs_statfs: statfs error = %d\n", -error); + dprintk("%s: statfs error = %d\n", __FUNCTION__, -error); buf->f_bsize = buf->f_blocks = buf->f_bfree = buf->f_bavail = -1; goto out; @@ -640,17 +634,32 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt) return 0; } +/** + * nfs_sync_mapping - helper to flush all mmapped dirty data to disk + */ +int nfs_sync_mapping(struct address_space *mapping) +{ + int ret; + + if (mapping->nrpages == 0) + return 0; + unmap_mapping_range(mapping, 0, 0, 0); + ret = filemap_write_and_wait(mapping); + if (ret != 0) + goto out; + ret = nfs_wb_all(mapping->host); +out: + return ret; +} + /* * Invalidate the local caches */ -void -nfs_zap_caches(struct inode *inode) +static void nfs_zap_caches_locked(struct inode *inode) { struct nfs_inode *nfsi = NFS_I(inode); int mode = inode->i_mode; - spin_lock(&inode->i_lock); - NFS_ATTRTIMEO(inode) = NFS_MINATTRTIMEO(inode); NFS_ATTRTIMEO_UPDATE(inode) = jiffies; @@ -659,7 +668,12 @@ nfs_zap_caches(struct inode *inode) nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE; else nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL|NFS_INO_REVAL_PAGECACHE; +} +void nfs_zap_caches(struct inode *inode) +{ + spin_lock(&inode->i_lock); + nfs_zap_caches_locked(inode); spin_unlock(&inode->i_lock); } @@ -676,16 +690,13 @@ static void nfs_zap_acl_cache(struct inode *inode) } /* - * Invalidate, but do not unhash, the inode + * Invalidate, but do not unhash, the inode. + * NB: must be called with inode->i_lock held! */ -static void -nfs_invalidate_inode(struct inode *inode) +static void nfs_invalidate_inode(struct inode *inode) { - umode_t save_mode = inode->i_mode; - - make_bad_inode(inode); - inode->i_mode = save_mode; - nfs_zap_caches(inode); + set_bit(NFS_INO_STALE, &NFS_FLAGS(inode)); + nfs_zap_caches_locked(inode); } struct nfs_find_desc { @@ -850,8 +861,7 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr) nfs_begin_data_update(inode); /* Write all dirty data if we're changing file permissions or size */ if ((attr->ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_SIZE)) != 0) { - if (filemap_fdatawrite(inode->i_mapping) == 0) - filemap_fdatawait(inode->i_mapping); + filemap_write_and_wait(inode->i_mapping); nfs_wb_all(inode); } /* @@ -938,11 +948,22 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) int need_atime = NFS_I(inode)->cache_validity & NFS_INO_INVALID_ATIME; int err; - if (__IS_FLG(inode, MS_NOATIME)) - need_atime = 0; - else if (__IS_FLG(inode, MS_NODIRATIME) && S_ISDIR(inode->i_mode)) + /* Flush out writes to the server in order to update c/mtime */ + nfs_sync_inode(inode, 0, 0, FLUSH_WAIT|FLUSH_NOCOMMIT); + + /* + * We may force a getattr if the user cares about atime. + * + * Note that we only have to check the vfsmount flags here: + * - NFS always sets S_NOATIME by so checking it would give a + * bogus result + * - NFS never sets MS_NOATIME or MS_NODIRATIME so there is + * no point in checking those. + */ + if ((mnt->mnt_flags & MNT_NOATIME) || + ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode))) need_atime = 0; - /* We may force a getattr if the user cares about atime */ + if (need_atime) err = __nfs_revalidate_inode(NFS_SERVER(inode), inode); else @@ -1081,8 +1102,6 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode) int status = -ESTALE; struct nfs_fattr fattr; struct nfs_inode *nfsi = NFS_I(inode); - unsigned long verifier; - unsigned long cache_validity; dfprintk(PAGECACHE, "NFS: revalidating (%s/%Ld)\n", inode->i_sb->s_id, (long long)NFS_FILEID(inode)); @@ -1107,8 +1126,6 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode) } } - /* Protect against RPC races by saving the change attribute */ - verifier = nfs_save_change_attribute(inode); status = NFS_PROTO(inode)->getattr(server, NFS_FH(inode), &fattr); if (status != 0) { dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) getattr failed, error=%d\n", @@ -1123,7 +1140,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode) } spin_lock(&inode->i_lock); - status = nfs_update_inode(inode, &fattr, verifier); + status = nfs_update_inode(inode, &fattr); if (status) { spin_unlock(&inode->i_lock); dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) refresh failed, error=%d\n", @@ -1131,20 +1148,11 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode) (long long)NFS_FILEID(inode), status); goto out; } - cache_validity = nfsi->cache_validity; - nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE; - - /* - * We may need to keep the attributes marked as invalid if - * we raced with nfs_end_attr_update(). - */ - if (time_after_eq(verifier, nfsi->cache_change_attribute)) - nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME); spin_unlock(&inode->i_lock); nfs_revalidate_mapping(inode, inode->i_mapping); - if (cache_validity & NFS_INO_INVALID_ACL) + if (nfsi->cache_validity & NFS_INO_INVALID_ACL) nfs_zap_acl_cache(inode); dfprintk(PAGECACHE, "NFS: (%s/%Ld) revalidation complete\n", @@ -1193,11 +1201,8 @@ void nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping) struct nfs_inode *nfsi = NFS_I(inode); if (nfsi->cache_validity & NFS_INO_INVALID_DATA) { - if (S_ISREG(inode->i_mode)) { - if (filemap_fdatawrite(mapping) == 0) - filemap_fdatawait(mapping); - nfs_wb_all(inode); - } + if (S_ISREG(inode->i_mode)) + nfs_sync_mapping(mapping); invalidate_inode_pages2(mapping); spin_lock(&inode->i_lock); @@ -1248,6 +1253,33 @@ void nfs_end_data_update(struct inode *inode) atomic_dec(&nfsi->data_updates); } +static void nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr *fattr) +{ + struct nfs_inode *nfsi = NFS_I(inode); + + if ((fattr->valid & NFS_ATTR_PRE_CHANGE) != 0 + && nfsi->change_attr == fattr->pre_change_attr) { + nfsi->change_attr = fattr->change_attr; + nfsi->cache_change_attribute = jiffies; + } + + /* If we have atomic WCC data, we may update some attributes */ + if ((fattr->valid & NFS_ATTR_WCC) != 0) { + if (timespec_equal(&inode->i_ctime, &fattr->pre_ctime)) { + memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime)); + nfsi->cache_change_attribute = jiffies; + } + if (timespec_equal(&inode->i_mtime, &fattr->pre_mtime)) { + memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime)); + nfsi->cache_change_attribute = jiffies; + } + if (inode->i_size == fattr->pre_size && nfsi->npages == 0) { + inode->i_size = fattr->size; + nfsi->cache_change_attribute = jiffies; + } + } +} + /** * nfs_check_inode_attributes - verify consistency of the inode attribute cache * @inode - pointer to inode @@ -1264,22 +1296,20 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat int data_unstable; + if ((fattr->valid & NFS_ATTR_FATTR) == 0) + return 0; + /* Are we in the process of updating data on the server? */ data_unstable = nfs_caches_unstable(inode); - if (fattr->valid & NFS_ATTR_FATTR_V4) { - if ((fattr->valid & NFS_ATTR_PRE_CHANGE) != 0 - && nfsi->change_attr == fattr->pre_change_attr) - nfsi->change_attr = fattr->change_attr; - if (nfsi->change_attr != fattr->change_attr) { - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; - if (!data_unstable) - nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE; - } - } + /* Do atomic weak cache consistency updates */ + nfs_wcc_update_inode(inode, fattr); - if ((fattr->valid & NFS_ATTR_FATTR) == 0) { - return 0; + if ((fattr->valid & NFS_ATTR_FATTR_V4) != 0 && + nfsi->change_attr != fattr->change_attr) { + nfsi->cache_validity |= NFS_INO_INVALID_ATTR; + if (!data_unstable) + nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE; } /* Has the inode gone and changed behind our back? */ @@ -1291,14 +1321,6 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat cur_size = i_size_read(inode); new_isize = nfs_size_to_loff_t(fattr->size); - /* If we have atomic WCC data, we may update some attributes */ - if ((fattr->valid & NFS_ATTR_WCC) != 0) { - if (timespec_equal(&inode->i_ctime, &fattr->pre_ctime)) - memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime)); - if (timespec_equal(&inode->i_mtime, &fattr->pre_mtime)) - memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime)); - } - /* Verify a few of the more important attributes */ if (!timespec_equal(&inode->i_mtime, &fattr->mtime)) { nfsi->cache_validity |= NFS_INO_INVALID_ATTR; @@ -1347,10 +1369,8 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr) return 0; spin_lock(&inode->i_lock); nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE; - if (nfs_verify_change_attribute(inode, fattr->time_start)) - nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME); if (time_after(fattr->time_start, nfsi->last_updated)) - status = nfs_update_inode(inode, fattr, fattr->time_start); + status = nfs_update_inode(inode, fattr); else status = nfs_check_inode_attributes(inode, fattr); @@ -1376,10 +1396,7 @@ int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr) nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS; goto out; } - status = nfs_update_inode(inode, fattr, fattr->time_start); - if (time_after_eq(fattr->time_start, nfsi->cache_change_attribute)) - nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME|NFS_INO_REVAL_PAGECACHE); - nfsi->cache_change_attribute = jiffies; + status = nfs_update_inode(inode, fattr); out: spin_unlock(&inode->i_lock); return status; @@ -1397,12 +1414,12 @@ out: * * A very similar scenario holds for the dir cache. */ -static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsigned long verifier) +static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) { struct nfs_inode *nfsi = NFS_I(inode); loff_t cur_isize, new_isize; unsigned int invalid = 0; - int data_unstable; + int data_stable; dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n", __FUNCTION__, inode->i_sb->s_id, inode->i_ino, @@ -1411,14 +1428,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign if ((fattr->valid & NFS_ATTR_FATTR) == 0) return 0; - if (nfsi->fileid != fattr->fileid) { - printk(KERN_ERR "%s: inode number mismatch\n" - "expected (%s/0x%Lx), got (%s/0x%Lx)\n", - __FUNCTION__, - inode->i_sb->s_id, (long long)nfsi->fileid, - inode->i_sb->s_id, (long long)fattr->fileid); - goto out_err; - } + if (nfsi->fileid != fattr->fileid) + goto out_fileid; /* * Make sure the inode's type hasn't changed. @@ -1433,8 +1444,12 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign nfsi->last_updated = jiffies; /* Are we racing with known updates of the metadata on the server? */ - data_unstable = ! (nfs_verify_change_attribute(inode, verifier) || - (nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE)); + data_stable = nfs_verify_change_attribute(inode, fattr->time_start); + if (data_stable) + nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME); + + /* Do atomic weak cache consistency updates */ + nfs_wcc_update_inode(inode, fattr); /* Check if our cached file size is stale */ new_isize = nfs_size_to_loff_t(fattr->size); @@ -1443,7 +1458,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign /* Do we perhaps have any outstanding writes? */ if (nfsi->npages == 0) { /* No, but did we race with nfs_end_data_update()? */ - if (time_after_eq(verifier, nfsi->cache_change_attribute)) { + if (data_stable) { inode->i_size = new_isize; invalid |= NFS_INO_INVALID_DATA; } @@ -1452,6 +1467,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign inode->i_size = new_isize; invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA; } + nfsi->cache_change_attribute = jiffies; dprintk("NFS: isize change on server for file %s/%ld\n", inode->i_sb->s_id, inode->i_ino); } @@ -1461,8 +1477,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime)); dprintk("NFS: mtime change on server for file %s/%ld\n", inode->i_sb->s_id, inode->i_ino); - if (!data_unstable) - invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA; + invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA; + nfsi->cache_change_attribute = jiffies; } if ((fattr->valid & NFS_ATTR_FATTR_V4) @@ -1470,15 +1486,15 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign dprintk("NFS: change_attr change on server for file %s/%ld\n", inode->i_sb->s_id, inode->i_ino); nfsi->change_attr = fattr->change_attr; - if (!data_unstable) - invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + nfsi->cache_change_attribute = jiffies; } /* If ctime has changed we should definitely clear access+acl caches */ if (!timespec_equal(&inode->i_ctime, &fattr->ctime)) { - if (!data_unstable) - invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + invalid |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; memcpy(&inode->i_ctime, &fattr->ctime, sizeof(inode->i_ctime)); + nfsi->cache_change_attribute = jiffies; } memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime)); @@ -1516,6 +1532,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))) invalid &= ~NFS_INO_INVALID_DATA; + if (data_stable) + invalid &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME|NFS_INO_REVAL_PAGECACHE); if (!nfs_have_delegation(inode, FMODE_READ)) nfsi->cache_validity |= invalid; @@ -1528,15 +1546,21 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign printk(KERN_DEBUG "%s: inode %ld mode changed, %07o to %07o\n", __FUNCTION__, inode->i_ino, inode->i_mode, fattr->mode); #endif + out_err: /* * No need to worry about unhashing the dentry, as the * lookup validation will know that the inode is bad. * (But we fall through to invalidate the caches.) */ nfs_invalidate_inode(inode); - out_err: - set_bit(NFS_INO_STALE, &NFS_FLAGS(inode)); return -ESTALE; + + out_fileid: + printk(KERN_ERR "NFS: server %s error: fileid changed\n" + "fsid %s: expected fileid 0x%Lx, got 0x%Lx\n", + NFS_SERVER(inode)->hostname, inode->i_sb->s_id, + (long long)nfsi->fileid, (long long)fattr->fileid); + goto out_err; } /* @@ -1818,25 +1842,10 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data, } clnt->cl_intr = 1; clnt->cl_softrtry = 1; - clnt->cl_chatty = 1; clp->cl_rpcclient = clnt; - clp->cl_cred = rpcauth_lookupcred(clnt->cl_auth, 0); - if (IS_ERR(clp->cl_cred)) { - up_write(&clp->cl_sem); - err = PTR_ERR(clp->cl_cred); - clp->cl_cred = NULL; - goto out_fail; - } memcpy(clp->cl_ipaddr, server->ip_addr, sizeof(clp->cl_ipaddr)); nfs_idmap_new(clp); } - if (list_empty(&clp->cl_superblocks)) { - err = nfs4_init_client(clp); - if (err != 0) { - up_write(&clp->cl_sem); - goto out_fail; - } - } list_add_tail(&server->nfs4_siblings, &clp->cl_superblocks); clnt = rpc_clone_client(clp->cl_rpcclient); if (!IS_ERR(clnt)) @@ -2031,6 +2040,35 @@ static struct file_system_type nfs4_fs_type = { .fs_flags = FS_ODD_RENAME|FS_REVAL_DOT|FS_BINARY_MOUNTDATA, }; +static const int nfs_set_port_min = 0; +static const int nfs_set_port_max = 65535; +static int param_set_port(const char *val, struct kernel_param *kp) +{ + char *endp; + int num = simple_strtol(val, &endp, 0); + if (endp == val || *endp || num < nfs_set_port_min || num > nfs_set_port_max) + return -EINVAL; + *((int *)kp->arg) = num; + return 0; +} + +module_param_call(callback_tcpport, param_set_port, param_get_int, + &nfs_callback_set_tcpport, 0644); + +static int param_set_idmap_timeout(const char *val, struct kernel_param *kp) +{ + char *endp; + int num = simple_strtol(val, &endp, 0); + int jif = num * HZ; + if (endp == val || *endp || num < 0 || jif < num) + return -EINVAL; + *((int *)kp->arg) = jif; + return 0; +} + +module_param_call(idmap_cache_timeout, param_set_idmap_timeout, param_get_int, + &nfs_idmap_cache_timeout, 0644); + #define nfs4_init_once(nfsi) \ do { \ INIT_LIST_HEAD(&(nfsi)->open_states); \ @@ -2038,8 +2076,25 @@ static struct file_system_type nfs4_fs_type = { nfsi->delegation_state = 0; \ init_rwsem(&nfsi->rwsem); \ } while(0) -#define register_nfs4fs() register_filesystem(&nfs4_fs_type) -#define unregister_nfs4fs() unregister_filesystem(&nfs4_fs_type) + +static inline int register_nfs4fs(void) +{ + int ret; + + ret = nfs_register_sysctl(); + if (ret != 0) + return ret; + ret = register_filesystem(&nfs4_fs_type); + if (ret != 0) + nfs_unregister_sysctl(); + return ret; +} + +static inline void unregister_nfs4fs(void) +{ + unregister_filesystem(&nfs4_fs_type); + nfs_unregister_sysctl(); +} #else #define nfs4_init_once(nfsi) \ do { } while (0) @@ -2068,6 +2123,7 @@ static struct inode *nfs_alloc_inode(struct super_block *sb) return NULL; nfsi->flags = 0UL; nfsi->cache_validity = 0UL; + nfsi->cache_change_attribute = jiffies; #ifdef CONFIG_NFS_V3_ACL nfsi->acl_access = ERR_PTR(-EAGAIN); nfsi->acl_default = ERR_PTR(-EAGAIN); @@ -2163,11 +2219,11 @@ out: #ifdef CONFIG_PROC_FS rpc_proc_unregister("nfs"); #endif - nfs_destroy_writepagecache(); #ifdef CONFIG_NFS_DIRECTIO -out0: nfs_destroy_directcache(); +out0: #endif + nfs_destroy_writepagecache(); out1: nfs_destroy_readpagecache(); out2: |