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| author | Kinglong Mee <kinglongmee@gmail.com> | 2015-08-26 21:10:55 +0800 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-08-27 19:44:21 -0400 |
| commit | ae57ca0f4fce219ef34c28f0edc210598c465a4d (patch) | |
| tree | 68739ac2fea68629b55962c6ee12093d070b6c9f /fs/nfs/inode.c | |
| parent | 0bdb8fa6ecb4a356f26c6874db51b5488706e088 (diff) | |
| download | linux-ae57ca0f4fce219ef34c28f0edc210598c465a4d.tar.bz2 | |
NFS: Check size by inode_newsize_ok in nfs_setattr
Set rlimit for NFS's files is useless right now.
For local process's rlimit, it should be checked by nfs client.
The same, CIFS also call inode_change_ok checking rlimit at its client
in cifs_setattr_nounix() and cifs_setattr_unix().
v3, fix bad using of error
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/inode.c')
| -rw-r--r-- | fs/nfs/inode.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index e2cc0031decb..99a68bd9c178 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -504,7 +504,7 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr) { struct inode *inode = d_inode(dentry); struct nfs_fattr *fattr; - int error = -ENOMEM; + int error = 0; nfs_inc_stats(inode, NFSIOS_VFSSETATTR); @@ -513,15 +513,14 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr) attr->ia_valid &= ~ATTR_MODE; if (attr->ia_valid & ATTR_SIZE) { - loff_t i_size; - BUG_ON(!S_ISREG(inode->i_mode)); - i_size = i_size_read(inode); - if (attr->ia_size == i_size) + error = inode_newsize_ok(inode, attr->ia_size); + if (error) + return error; + + if (attr->ia_size == i_size_read(inode)) attr->ia_valid &= ~ATTR_SIZE; - else if (attr->ia_size < i_size && IS_SWAPFILE(inode)) - return -ETXTBSY; } /* Optimization: if the end result is no change, don't RPC */ @@ -536,8 +535,11 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr) nfs_sync_inode(inode); fattr = nfs_alloc_fattr(); - if (fattr == NULL) + if (fattr == NULL) { + error = -ENOMEM; goto out; + } + /* * Return any delegations if we're going to change ACLs */ |