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authorSteve French <sfrench@us.ibm.com>2005-11-28 08:16:13 -0800
committerSteve French <sfrench@us.ibm.com>2005-11-28 08:16:13 -0800
commit3abb92722ab1784b419dadb5444daf8ea9636905 (patch)
tree10e8eac9df4380542fb8416137dffe3b8c08ad54 /fs/cifs/dir.c
parent458af5439fe7ae7d95ca14106844e61f0795166c (diff)
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[CIFS] When file is deleted locally but later recreated on the server
fix cifs negative dentries so they are freed faster (not requiring umount or readdir e.g.) so the client recognizes the new file on the server more quickly. Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/dir.c')
-rw-r--r--fs/cifs/dir.c25
1 files changed, 16 insertions, 9 deletions
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 16b21522e8fe..aa4ea965b329 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -465,12 +465,20 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, struct name
direntry->d_op = &cifs_dentry_ops;
d_add(direntry, newInode);
- /* since paths are not looked up by component - the parent directories are presumed to be good here */
+ /* since paths are not looked up by component - the parent
+ directories are presumed to be good here */
renew_parental_timestamps(direntry);
} else if (rc == -ENOENT) {
rc = 0;
+ direntry->d_time = jiffies;
+ if (pTcon->nocase)
+ direntry->d_op = &cifs_ci_dentry_ops;
+ else
+ direntry->d_op = &cifs_dentry_ops;
d_add(direntry, NULL);
+ /* if it was once a directory (but how can we tell?) we could do
+ shrink_dcache_parent(direntry); */
} else {
cERROR(1,("Error 0x%x on cifs_get_inode_info in lookup of %s",
rc,full_path));
@@ -489,21 +497,20 @@ cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
{
int isValid = 1;
-/* lock_kernel(); *//* surely we do not want to lock the kernel for a whole network round trip which could take seconds */
-
if (direntry->d_inode) {
if (cifs_revalidate(direntry)) {
- /* unlock_kernel(); */
return 0;
}
} else {
- cFYI(1,
- ("In cifs_d_revalidate with no inode but name = %s and dentry 0x%p",
- direntry->d_name.name, direntry));
+ cFYI(1, ("neg dentry 0x%p name = %s",
+ direntry, direntry->d_name.name));
+ if(time_after(jiffies, direntry->d_time + HZ) ||
+ !lookupCacheEnabled) {
+ d_drop(direntry);
+ isValid = 0;
+ }
}
-/* unlock_kernel(); */
-
return isValid;
}