#include <linux/string.h>
#include <linux/time.h>
#include <linux/in.h>
+#include <linux/mutex.h>
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/clnt.h>
#include <linux/nfsd/nfsfh.h>
#define FILE_HASH_BITS 5
#define FILE_NRHASH (1<<FILE_HASH_BITS)
static struct nlm_file * nlm_files[FILE_NRHASH];
-static DECLARE_MUTEX(nlm_file_sema);
+static DEFINE_MUTEX(nlm_file_mutex);
+
+#ifdef NFSD_DEBUG
+static inline void nlm_debug_print_fh(char *msg, struct nfs_fh *f)
+{
+ u32 *fhp = (u32*)f->data;
+
+ /* print the first 32 bytes of the fh */
+ dprintk("lockd: %s (%08x %08x %08x %08x %08x %08x %08x %08x)\n",
+ msg, fhp[0], fhp[1], fhp[2], fhp[3],
+ fhp[4], fhp[5], fhp[6], fhp[7]);
+}
+
+static inline void nlm_debug_print_file(char *msg, struct nlm_file *file)
+{
+ struct inode *inode = file->f_file->f_dentry->d_inode;
+
+ dprintk("lockd: %s %s/%ld\n",
+ msg, inode->i_sb->s_id, inode->i_ino);
+}
+#else
+static inline void nlm_debug_print_fh(char *msg, struct nfs_fh *f)
+{
+ return;
+}
+
+static inline void nlm_debug_print_file(char *msg, struct nlm_file *file)
+{
+ return;
+}
+#endif
static inline unsigned int file_hash(struct nfs_fh *f)
{
struct nlm_file *file;
unsigned int hash;
u32 nfserr;
- u32 *fhp = (u32*)f->data;
-
- dprintk("lockd: nlm_file_lookup(%08x %08x %08x %08x %08x %08x)\n",
- fhp[0], fhp[1], fhp[2], fhp[3], fhp[4], fhp[5]);
+ nlm_debug_print_fh("nlm_file_lookup", f);
hash = file_hash(f);
/* Lock file table */
- down(&nlm_file_sema);
+ mutex_lock(&nlm_file_mutex);
for (file = nlm_files[hash]; file; file = file->f_next)
- if (!memcmp(&file->f_handle, f, sizeof(*f)))
+ if (!nfs_compare_fh(&file->f_handle, f))
goto found;
- dprintk("lockd: creating file for (%08x %08x %08x %08x %08x %08x)\n",
- fhp[0], fhp[1], fhp[2], fhp[3], fhp[4], fhp[5]);
+ nlm_debug_print_fh("creating file for", f);
nfserr = nlm_lck_denied_nolocks;
file = (struct nlm_file *) kmalloc(sizeof(*file), GFP_KERNEL);
nfserr = 0;
out_unlock:
- up(&nlm_file_sema);
+ mutex_unlock(&nlm_file_mutex);
return nfserr;
out_free:
static inline void
nlm_delete_file(struct nlm_file *file)
{
- struct inode *inode = file->f_file.f_dentry->d_inode;
struct nlm_file **fp, *f;
- dprintk("lockd: closing file %s/%ld\n",
- inode->i_sb->s_id, inode->i_ino);
+ nlm_debug_print_file("closing file", file);
+
fp = nlm_files + file->f_hash;
while ((f = *fp) != NULL) {
if (f == file) {
*fp = file->f_next;
- nlmsvc_ops->fclose(&file->f_file);
+ nlmsvc_ops->fclose(file->f_file);
kfree(file);
return;
}
again:
file->f_locks = 0;
for (fl = inode->i_flock; fl; fl = fl->fl_next) {
- if (!(fl->fl_flags & FL_LOCKD))
+ if (fl->fl_lmops != &nlmsvc_lock_operations)
continue;
/* update current lock count */
lock.fl_type = F_UNLCK;
lock.fl_start = 0;
lock.fl_end = OFFSET_MAX;
- if (posix_lock_file(&file->f_file, &lock) < 0) {
+ if (posix_lock_file(file->f_file, &lock) < 0) {
printk("lockd: unlock failure in %s:%d\n",
__FILE__, __LINE__);
return 1;
if (file->f_count || file->f_blocks || file->f_shares)
return 1;
} else {
- if (nlmsvc_traverse_blocks(host, file, action)
- || nlmsvc_traverse_shares(host, file, action))
- return 1;
+ nlmsvc_traverse_blocks(host, file, action);
+ nlmsvc_traverse_shares(host, file, action);
}
return nlm_traverse_locks(host, file, action);
}
struct nlm_file *file, **fp;
int i;
- down(&nlm_file_sema);
+ mutex_lock(&nlm_file_mutex);
for (i = 0; i < FILE_NRHASH; i++) {
fp = nlm_files + i;
while ((file = *fp) != NULL) {
/* Traverse locks, blocks and shares of this file
* and update file->f_locks count */
if (nlm_inspect_file(host, file, action)) {
- up(&nlm_file_sema);
+ mutex_unlock(&nlm_file_mutex);
return 1;
}
if (!file->f_blocks && !file->f_locks
&& !file->f_shares && !file->f_count) {
*fp = file->f_next;
- nlmsvc_ops->fclose(&file->f_file);
+ nlmsvc_ops->fclose(file->f_file);
kfree(file);
} else {
fp = &file->f_next;
}
}
}
- up(&nlm_file_sema);
+ mutex_unlock(&nlm_file_mutex);
return 0;
}
file, file->f_count);
/* Lock file table */
- down(&nlm_file_sema);
+ mutex_lock(&nlm_file_mutex);
/* If there are no more locks etc, delete the file */
if(--file->f_count == 0) {
nlm_delete_file(file);
}
- up(&nlm_file_sema);
+ mutex_unlock(&nlm_file_mutex);
}
/*