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authorJean Noel Cordenner <jean-noel.cordenner@bull.net>2008-01-28 23:58:27 -0500
committerTheodore Ts'o <tytso@mit.edu>2008-01-28 23:58:27 -0500
commit7a224228ed79d587ece2304869000aad1b8e97dd (patch)
treef2b299f5a5d04cf8d3d0ef10ff264bd34943f90e /fs/afs
parent818d276ceb83aa9fdebb5e0a53188290312de987 (diff)
vfs: Add 64 bit i_version support
The i_version field of the inode is changed to be a 64-bit counter that is set on every inode creation and that is incremented every time the inode data is modified (similarly to the "ctime" time-stamp). The aim is to fulfill a NFSv4 requirement for rfc3530. This first part concerns the vfs, it converts the 32-bit i_version in the generic inode to a 64-bit, a flag is added in the super block in order to check if the feature is enabled and the i_version is incremented in the vfs. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Jean Noel Cordenner <jean-noel.cordenner@bull.net> Signed-off-by: Kalpak Shah <kalpak@clusterfs.com>
Diffstat (limited to 'fs/afs')
-rw-r--r--fs/afs/dir.c9
-rw-r--r--fs/afs/inode.c3
2 files changed, 7 insertions, 5 deletions
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index 33fe39ad4e03..0cc3597c1197 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -546,11 +546,11 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry,
546 dentry->d_op = &afs_fs_dentry_operations; 546 dentry->d_op = &afs_fs_dentry_operations;
547 547
548 d_add(dentry, inode); 548 d_add(dentry, inode);
549 _leave(" = 0 { vn=%u u=%u } -> { ino=%lu v=%lu }", 549 _leave(" = 0 { vn=%u u=%u } -> { ino=%lu v=%llu }",
550 fid.vnode, 550 fid.vnode,
551 fid.unique, 551 fid.unique,
552 dentry->d_inode->i_ino, 552 dentry->d_inode->i_ino,
553 dentry->d_inode->i_version); 553 (unsigned long long)dentry->d_inode->i_version);
554 554
555 return NULL; 555 return NULL;
556} 556}
@@ -630,9 +630,10 @@ static int afs_d_revalidate(struct dentry *dentry, struct nameidata *nd)
630 * been deleted and replaced, and the original vnode ID has 630 * been deleted and replaced, and the original vnode ID has
631 * been reused */ 631 * been reused */
632 if (fid.unique != vnode->fid.unique) { 632 if (fid.unique != vnode->fid.unique) {
633 _debug("%s: file deleted (uq %u -> %u I:%lu)", 633 _debug("%s: file deleted (uq %u -> %u I:%llu)",
634 dentry->d_name.name, fid.unique, 634 dentry->d_name.name, fid.unique,
635 vnode->fid.unique, dentry->d_inode->i_version); 635 vnode->fid.unique,
636 (unsigned long long)dentry->d_inode->i_version);
636 spin_lock(&vnode->lock); 637 spin_lock(&vnode->lock);
637 set_bit(AFS_VNODE_DELETED, &vnode->flags); 638 set_bit(AFS_VNODE_DELETED, &vnode->flags);
638 spin_unlock(&vnode->lock); 639 spin_unlock(&vnode->lock);
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index d196840127c6..84750c8e9f95 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -301,7 +301,8 @@ int afs_getattr(struct vfsmount *mnt, struct dentry *dentry,
301 301
302 inode = dentry->d_inode; 302 inode = dentry->d_inode;
303 303
304 _enter("{ ino=%lu v=%lu }", inode->i_ino, inode->i_version); 304 _enter("{ ino=%lu v=%llu }", inode->i_ino,
305 (unsigned long long)inode->i_version);
305 306
306 generic_fillattr(inode, stat); 307 generic_fillattr(inode, stat);
307 return 0; 308 return 0;