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authorJan Harkes <jaharkes@cs.cmu.edu>2007-07-19 01:48:49 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-19 10:04:48 -0700
commited36f723676b208053d0655cee7e7f1601a2d356 (patch)
tree609c46932dab8b7af50b19dfd1e38cc5a760b172 /fs
parent970648eb03cca7d7405f9a3a5d3fe29929e48aa6 (diff)
downloadlinux-linaro-ed36f723676b208053d0655cee7e7f1601a2d356.tar.gz
coda: cleanup coda_lookup, use dsplice_alias
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/coda/dir.c57
1 files changed, 22 insertions, 35 deletions
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 47ac9e21a59..0c6c48ca749 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -97,58 +97,45 @@ const struct file_operations coda_dir_operations = {
/* access routines: lookup, readlink, permission */
static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, struct nameidata *nd)
{
- struct inode *res_inode = NULL;
+ struct inode *inode = NULL;
struct CodaFid resfid = { { 0, } };
- int dropme = 0; /* to indicate entry should not be cached */
int type = 0;
int error = 0;
const char *name = entry->d_name.name;
size_t length = entry->d_name.len;
-
- if ( length > CODA_MAXNAMLEN ) {
- printk("name too long: lookup, %s (%*s)\n",
+
+ if (length > CODA_MAXNAMLEN) {
+ printk(KERN_ERR "name too long: lookup, %s (%*s)\n",
coda_i2s(dir), (int)length, name);
return ERR_PTR(-ENAMETOOLONG);
}
+ /* control object, create inode on the fly */
+ if (coda_isroot(dir) && coda_iscontrol(name, length)) {
+ error = coda_cnode_makectl(&inode, dir->i_sb);
+ type = CODA_NOCACHE;
+ goto exit;
+ }
+
lock_kernel();
- /* control object, create inode on the fly */
- if (coda_isroot(dir) && coda_iscontrol(name, length)) {
- error = coda_cnode_makectl(&res_inode, dir->i_sb);
- dropme = 1;
- goto exit;
- }
- error = venus_lookup(dir->i_sb, coda_i2f(dir),
- (const char *)name, length, &type, &resfid);
+ error = venus_lookup(dir->i_sb, coda_i2f(dir), name, length,
+ &type, &resfid);
+ if (!error)
+ error = coda_cnode_make(&inode, &resfid, dir->i_sb);
- res_inode = NULL;
- if (!error) {
- if (type & CODA_NOCACHE) {
- type &= (~CODA_NOCACHE);
- dropme = 1;
- }
+ unlock_kernel();
- error = coda_cnode_make(&res_inode, &resfid, dir->i_sb);
- if (error) {
- unlock_kernel();
- return ERR_PTR(error);
- }
- } else if (error != -ENOENT) {
- unlock_kernel();
+ if (error && error != -ENOENT)
return ERR_PTR(error);
- }
exit:
- entry->d_time = 0;
entry->d_op = &coda_dentry_operations;
- d_add(entry, res_inode);
- if ( dropme ) {
- d_drop(entry);
- coda_flag_inode(res_inode, C_VATTR);
- }
- unlock_kernel();
- return NULL;
+
+ if (inode && (type & CODA_NOCACHE))
+ coda_flag_inode(inode, C_VATTR | C_PURGE);
+
+ return d_splice_alias(inode, entry);
}