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Merge branch 'upstream'
[powerpc.git]
/
fs
/
nfs
/
dir.c
diff --git
a/fs/nfs/dir.c
b/fs/nfs/dir.c
index
a1554be
..
a23f348
100644
(file)
--- a/
fs/nfs/dir.c
+++ b/
fs/nfs/dir.c
@@
-34,6
+34,7
@@
#include "nfs4_fs.h"
#include "delegation.h"
#include "nfs4_fs.h"
#include "delegation.h"
+#include "iostat.h"
#define NFS_PARANOIA 1
/* #define NFS_DEBUG_VERBOSE 1 */
#define NFS_PARANOIA 1
/* #define NFS_DEBUG_VERBOSE 1 */
@@
-53,7
+54,7
@@
static int nfs_rename(struct inode *, struct dentry *,
static int nfs_fsync_dir(struct file *, struct dentry *, int);
static loff_t nfs_llseek_dir(struct file *, loff_t, int);
static int nfs_fsync_dir(struct file *, struct dentry *, int);
static loff_t nfs_llseek_dir(struct file *, loff_t, int);
-struct file_operations nfs_dir_operations = {
+
const
struct file_operations nfs_dir_operations = {
.llseek = nfs_llseek_dir,
.read = generic_read_dir,
.readdir = nfs_readdir,
.llseek = nfs_llseek_dir,
.read = generic_read_dir,
.readdir = nfs_readdir,
@@
-129,6
+130,9
@@
nfs_opendir(struct inode *inode, struct file *filp)
{
int res = 0;
{
int res = 0;
+ dfprintk(VFS, "NFS: opendir(%s/%ld)\n",
+ inode->i_sb->s_id, inode->i_ino);
+
lock_kernel();
/* Call generic open code in order to cache credentials */
if (!res)
lock_kernel();
/* Call generic open code in order to cache credentials */
if (!res)
@@
-172,7
+176,9
@@
int nfs_readdir_filler(nfs_readdir_descriptor_t *desc, struct page *page)
unsigned long timestamp;
int error;
unsigned long timestamp;
int error;
- dfprintk(VFS, "NFS: nfs_readdir_filler() reading cookie %Lu into page %lu.\n", (long long)desc->entry->cookie, page->index);
+ dfprintk(DIRCACHE, "NFS: %s: reading cookie %Lu into page %lu\n",
+ __FUNCTION__, (long long)desc->entry->cookie,
+ page->index);
again:
timestamp = jiffies;
again:
timestamp = jiffies;
@@
-244,7
+250,8
@@
int find_dirent(nfs_readdir_descriptor_t *desc)
status;
while((status = dir_decode(desc)) == 0) {
status;
while((status = dir_decode(desc)) == 0) {
- dfprintk(VFS, "NFS: found cookie %Lu\n", (unsigned long long)entry->cookie);
+ dfprintk(DIRCACHE, "NFS: %s: examining cookie %Lu\n",
+ __FUNCTION__, (unsigned long long)entry->cookie);
if (entry->prev_cookie == *desc->dir_cookie)
break;
if (loop_count++ > 200) {
if (entry->prev_cookie == *desc->dir_cookie)
break;
if (loop_count++ > 200) {
@@
-252,7
+259,6
@@
int find_dirent(nfs_readdir_descriptor_t *desc)
schedule();
}
}
schedule();
}
}
- dfprintk(VFS, "NFS: find_dirent() returns %d\n", status);
return status;
}
return status;
}
@@
-276,7
+282,8
@@
int find_dirent_index(nfs_readdir_descriptor_t *desc)
if (status)
break;
if (status)
break;
- dfprintk(VFS, "NFS: found cookie %Lu at index %Ld\n", (unsigned long long)entry->cookie, desc->current_index);
+ dfprintk(DIRCACHE, "NFS: found cookie %Lu at index %Ld\n",
+ (unsigned long long)entry->cookie, desc->current_index);
if (desc->file->f_pos == desc->current_index) {
*desc->dir_cookie = entry->cookie;
if (desc->file->f_pos == desc->current_index) {
*desc->dir_cookie = entry->cookie;
@@
-288,7
+295,6
@@
int find_dirent_index(nfs_readdir_descriptor_t *desc)
schedule();
}
}
schedule();
}
}
- dfprintk(VFS, "NFS: find_dirent_index() returns %d\n", status);
return status;
}
return status;
}
@@
-303,7
+309,9
@@
int find_dirent_page(nfs_readdir_descriptor_t *desc)
struct page *page;
int status;
struct page *page;
int status;
- dfprintk(VFS, "NFS: find_dirent_page() searching directory page %ld\n", desc->page_index);
+ dfprintk(DIRCACHE, "NFS: %s: searching page %ld for target %Lu\n",
+ __FUNCTION__, desc->page_index,
+ (long long) *desc->dir_cookie);
page = read_cache_page(inode->i_mapping, desc->page_index,
(filler_t *)nfs_readdir_filler, desc);
page = read_cache_page(inode->i_mapping, desc->page_index,
(filler_t *)nfs_readdir_filler, desc);
@@
-324,7
+332,7
@@
int find_dirent_page(nfs_readdir_descriptor_t *desc)
if (status < 0)
dir_page_release(desc);
out:
if (status < 0)
dir_page_release(desc);
out:
- dfprintk(
VFS, "NFS: find_dirent_page() returns %d\n"
, status);
+ dfprintk(
DIRCACHE, "NFS: %s: returns %d\n", __FUNCTION__
, status);
return status;
read_error:
page_cache_release(page);
return status;
read_error:
page_cache_release(page);
@@
-346,13
+354,15
@@
int readdir_search_pagecache(nfs_readdir_descriptor_t *desc)
/* Always search-by-index from the beginning of the cache */
if (*desc->dir_cookie == 0) {
/* Always search-by-index from the beginning of the cache */
if (*desc->dir_cookie == 0) {
- dfprintk(VFS, "NFS: readdir_search_pagecache() searching for offset %Ld\n", (long long)desc->file->f_pos);
+ dfprintk(DIRCACHE, "NFS: readdir_search_pagecache() searching for offset %Ld\n",
+ (long long)desc->file->f_pos);
desc->page_index = 0;
desc->entry->cookie = desc->entry->prev_cookie = 0;
desc->entry->eof = 0;
desc->current_index = 0;
} else
desc->page_index = 0;
desc->entry->cookie = desc->entry->prev_cookie = 0;
desc->entry->eof = 0;
desc->current_index = 0;
} else
- dfprintk(VFS, "NFS: readdir_search_pagecache() searching for cookie %Lu\n", (unsigned long long)*desc->dir_cookie);
+ dfprintk(DIRCACHE, "NFS: readdir_search_pagecache() searching for cookie %Lu\n",
+ (unsigned long long)*desc->dir_cookie);
for (;;) {
res = find_dirent_page(desc);
for (;;) {
res = find_dirent_page(desc);
@@
-365,7
+375,8
@@
int readdir_search_pagecache(nfs_readdir_descriptor_t *desc)
schedule();
}
}
schedule();
}
}
- dfprintk(VFS, "NFS: readdir_search_pagecache() returned %d\n", res);
+
+ dfprintk(DIRCACHE, "NFS: %s: returns %d\n", __FUNCTION__, res);
return res;
}
return res;
}
@@
-390,7
+401,8
@@
int nfs_do_filldir(nfs_readdir_descriptor_t *desc, void *dirent,
int loop_count = 0,
res;
int loop_count = 0,
res;
- dfprintk(VFS, "NFS: nfs_do_filldir() filling starting @ cookie %Lu\n", (long long)entry->cookie);
+ dfprintk(DIRCACHE, "NFS: nfs_do_filldir() filling starting @ cookie %Lu\n",
+ (unsigned long long)entry->cookie);
for(;;) {
unsigned d_type = DT_UNKNOWN;
for(;;) {
unsigned d_type = DT_UNKNOWN;
@@
-427,7
+439,8
@@
int nfs_do_filldir(nfs_readdir_descriptor_t *desc, void *dirent,
dir_page_release(desc);
if (dentry != NULL)
dput(dentry);
dir_page_release(desc);
if (dentry != NULL)
dput(dentry);
- dfprintk(VFS, "NFS: nfs_do_filldir() filling ended @ cookie %Lu; returning = %d\n", (unsigned long long)*desc->dir_cookie, res);
+ dfprintk(DIRCACHE, "NFS: nfs_do_filldir() filling ended @ cookie %Lu; returning = %d\n",
+ (unsigned long long)*desc->dir_cookie, res);
return res;
}
return res;
}
@@
-453,7
+466,8
@@
int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
struct page *page = NULL;
int status;
struct page *page = NULL;
int status;
- dfprintk(VFS, "NFS: uncached_readdir() searching for cookie %Lu\n", (unsigned long long)*desc->dir_cookie);
+ dfprintk(DIRCACHE, "NFS: uncached_readdir() searching for cookie %Lu\n",
+ (unsigned long long)*desc->dir_cookie);
page = alloc_page(GFP_HIGHUSER);
if (!page) {
page = alloc_page(GFP_HIGHUSER);
if (!page) {
@@
-485,7
+499,8
@@
int uncached_readdir(nfs_readdir_descriptor_t *desc, void *dirent,
desc->entry->cookie = desc->entry->prev_cookie = 0;
desc->entry->eof = 0;
out:
desc->entry->cookie = desc->entry->prev_cookie = 0;
desc->entry->eof = 0;
out:
- dfprintk(VFS, "NFS: uncached_readdir() returns %d\n", status);
+ dfprintk(DIRCACHE, "NFS: %s: returns %d\n",
+ __FUNCTION__, status);
return status;
out_release:
dir_page_release(desc);
return status;
out_release:
dir_page_release(desc);
@@
-507,6
+522,11
@@
static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
struct nfs_fattr fattr;
long res;
struct nfs_fattr fattr;
long res;
+ dfprintk(VFS, "NFS: readdir(%s/%s) starting at cookie %Lu\n",
+ dentry->d_parent->d_name.name, dentry->d_name.name,
+ (long long)filp->f_pos);
+ nfs_inc_stats(inode, NFSIOS_VFSGETDENTS);
+
lock_kernel();
res = nfs_revalidate_inode(NFS_SERVER(inode), inode);
lock_kernel();
res = nfs_revalidate_inode(NFS_SERVER(inode), inode);
@@
-566,9
+586,12
@@
static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
}
}
unlock_kernel();
}
}
unlock_kernel();
- if (res < 0)
- return res;
- return 0;
+ if (res > 0)
+ res = 0;
+ dfprintk(VFS, "NFS: readdir(%s/%s) returns %ld\n",
+ dentry->d_parent->d_name.name, dentry->d_name.name,
+ res);
+ return res;
}
loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin)
}
loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int origin)
@@
-599,6
+622,10
@@
out:
*/
int nfs_fsync_dir(struct file *filp, struct dentry *dentry, int datasync)
{
*/
int nfs_fsync_dir(struct file *filp, struct dentry *dentry, int datasync)
{
+ dfprintk(VFS, "NFS: fsync_dir(%s/%s) datasync %d\n",
+ dentry->d_parent->d_name.name, dentry->d_name.name,
+ datasync);
+
return 0;
}
return 0;
}
@@
-713,6
+740,7
@@
static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
parent = dget_parent(dentry);
lock_kernel();
dir = parent->d_inode;
parent = dget_parent(dentry);
lock_kernel();
dir = parent->d_inode;
+ nfs_inc_stats(dir, NFSIOS_DENTRYREVALIDATE);
inode = dentry->d_inode;
if (!inode) {
inode = dentry->d_inode;
if (!inode) {
@@
-722,8
+750,9
@@
static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
}
if (is_bad_inode(inode)) {
}
if (is_bad_inode(inode)) {
- dfprintk(VFS, "nfs_lookup_validate: %s/%s has dud inode\n",
- dentry->d_parent->d_name.name, dentry->d_name.name);
+ dfprintk(LOOKUPCACHE, "%s: %s/%s has dud inode\n",
+ __FUNCTION__, dentry->d_parent->d_name.name,
+ dentry->d_name.name);
goto out_bad;
}
goto out_bad;
}
@@
-755,6
+784,9
@@
static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
out_valid:
unlock_kernel();
dput(parent);
out_valid:
unlock_kernel();
dput(parent);
+ dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) is valid\n",
+ __FUNCTION__, dentry->d_parent->d_name.name,
+ dentry->d_name.name);
return 1;
out_zap_parent:
nfs_zap_caches(dir);
return 1;
out_zap_parent:
nfs_zap_caches(dir);
@@
-771,6
+803,9
@@
out_zap_parent:
d_drop(dentry);
unlock_kernel();
dput(parent);
d_drop(dentry);
unlock_kernel();
dput(parent);
+ dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) is invalid\n",
+ __FUNCTION__, dentry->d_parent->d_name.name,
+ dentry->d_name.name);
return 0;
}
return 0;
}
@@
-844,6
+879,7
@@
static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru
dfprintk(VFS, "NFS: lookup(%s/%s)\n",
dentry->d_parent->d_name.name, dentry->d_name.name);
dfprintk(VFS, "NFS: lookup(%s/%s)\n",
dentry->d_parent->d_name.name, dentry->d_name.name);
+ nfs_inc_stats(dir, NFSIOS_VFSLOOKUP);
res = ERR_PTR(-ENAMETOOLONG);
if (dentry->d_name.len > NFS_SERVER(dir)->namelen)
res = ERR_PTR(-ENAMETOOLONG);
if (dentry->d_name.len > NFS_SERVER(dir)->namelen)
@@
-865,9
+901,9
@@
static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru
res = ERR_PTR(error);
goto out_unlock;
}
res = ERR_PTR(error);
goto out_unlock;
}
- res = ERR_PTR(-EACCES);
inode = nfs_fhget(dentry->d_sb, &fhandle, &fattr);
inode = nfs_fhget(dentry->d_sb, &fhandle, &fattr);
- if (!inode)
+ res = (struct dentry *)inode;
+ if (IS_ERR(res))
goto out_unlock;
no_entry:
res = d_add_unique(dentry, inode);
goto out_unlock;
no_entry:
res = d_add_unique(dentry, inode);
@@
-912,6
+948,9
@@
static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
struct dentry *res = NULL;
int error;
struct dentry *res = NULL;
int error;
+ dfprintk(VFS, "NFS: atomic_lookup(%s/%ld), %s\n",
+ dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+
/* Check that we are indeed trying to open this file */
if (!is_atomic_open(dir, nd))
goto no_open;
/* Check that we are indeed trying to open this file */
if (!is_atomic_open(dir, nd))
goto no_open;
@@
-1057,7
+1096,7
@@
static struct dentry *nfs_readdir_lookup(nfs_readdir_descriptor_t *desc)
return NULL;
dentry->d_op = NFS_PROTO(dir)->dentry_ops;
inode = nfs_fhget(dentry->d_sb, entry->fh, entry->fattr);
return NULL;
dentry->d_op = NFS_PROTO(dir)->dentry_ops;
inode = nfs_fhget(dentry->d_sb, entry->fh, entry->fattr);
- if (
!inode
) {
+ if (
IS_ERR(inode)
) {
dput(dentry);
return NULL;
}
dput(dentry);
return NULL;
}
@@
-1095,9
+1134,9
@@
int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fhandle,
if (error < 0)
goto out_err;
}
if (error < 0)
goto out_err;
}
- error = -ENOMEM;
inode = nfs_fhget(dentry->d_sb, fhandle, fattr);
inode = nfs_fhget(dentry->d_sb, fhandle, fattr);
- if (inode == NULL)
+ error = PTR_ERR(inode);
+ if (IS_ERR(inode))
goto out_err;
d_instantiate(dentry, inode);
return 0;
goto out_err;
d_instantiate(dentry, inode);
return 0;
@@
-1119,8
+1158,8
@@
static int nfs_create(struct inode *dir, struct dentry *dentry, int mode,
int error;
int open_flags = 0;
int error;
int open_flags = 0;
- dfprintk(VFS, "NFS: create(%s/%ld
, %s\n", dir->i_sb->s_id,
- dir->i_ino, dentry->d_name.name);
+ dfprintk(VFS, "NFS: create(%s/%ld
), %s\n",
+
dir->i_sb->s_id,
dir->i_ino, dentry->d_name.name);
attr.ia_mode = mode;
attr.ia_valid = ATTR_MODE;
attr.ia_mode = mode;
attr.ia_valid = ATTR_MODE;
@@
-1153,8
+1192,8
@@
nfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
struct iattr attr;
int status;
struct iattr attr;
int status;
- dfprintk(VFS, "NFS: mknod(%s/%ld
, %s\n", dir->i_sb->s_id
,
- dir->i_ino, dentry->d_name.name);
+ dfprintk(VFS, "NFS: mknod(%s/%ld
), %s\n"
,
+
dir->i_sb->s_id,
dir->i_ino, dentry->d_name.name);
if (!new_valid_dev(rdev))
return -EINVAL;
if (!new_valid_dev(rdev))
return -EINVAL;
@@
-1186,8
+1225,8
@@
static int nfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
struct iattr attr;
int error;
struct iattr attr;
int error;
- dfprintk(VFS, "NFS: mkdir(%s/%ld
, %s\n", dir->i_sb->s_id
,
- dir->i_ino, dentry->d_name.name);
+ dfprintk(VFS, "NFS: mkdir(%s/%ld
), %s\n"
,
+
dir->i_sb->s_id,
dir->i_ino, dentry->d_name.name);
attr.ia_valid = ATTR_MODE;
attr.ia_mode = mode | S_IFDIR;
attr.ia_valid = ATTR_MODE;
attr.ia_mode = mode | S_IFDIR;
@@
-1212,8
+1251,8
@@
static int nfs_rmdir(struct inode *dir, struct dentry *dentry)
{
int error;
{
int error;
- dfprintk(VFS, "NFS: rmdir(%s/%ld
, %s\n", dir->i_sb->s_id
,
- dir->i_ino, dentry->d_name.name);
+ dfprintk(VFS, "NFS: rmdir(%s/%ld
), %s\n"
,
+
dir->i_sb->s_id,
dir->i_ino, dentry->d_name.name);
lock_kernel();
nfs_begin_data_update(dir);
lock_kernel();
nfs_begin_data_update(dir);
@@
-1241,6
+1280,7
@@
static int nfs_sillyrename(struct inode *dir, struct dentry *dentry)
dfprintk(VFS, "NFS: silly-rename(%s/%s, ct=%d)\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
atomic_read(&dentry->d_count));
dfprintk(VFS, "NFS: silly-rename(%s/%s, ct=%d)\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
atomic_read(&dentry->d_count));
+ nfs_inc_stats(dir, NFSIOS_SILLYRENAME);
#ifdef NFS_PARANOIA
if (!dentry->d_inode)
#ifdef NFS_PARANOIA
if (!dentry->d_inode)
@@
-1268,8
+1308,8
@@
dentry->d_parent->d_name.name, dentry->d_name.name);
sillycounter++;
sprintf(suffix, "%*.*x", countersize, countersize, sillycounter);
sillycounter++;
sprintf(suffix, "%*.*x", countersize, countersize, sillycounter);
- dfprintk(VFS, "trying to rename %s to %s\n",
- dentry->d_name.name, silly);
+ dfprintk(VFS, "
NFS:
trying to rename %s to %s\n",
+
dentry->d_name.name, silly);
sdentry = lookup_one_len(silly, dentry->d_parent, slen);
/*
sdentry = lookup_one_len(silly, dentry->d_parent, slen);
/*
@@
-1640,6
+1680,8
@@
int nfs_permission(struct inode *inode, int mask, struct nameidata *nd)
struct rpc_cred *cred;
int res = 0;
struct rpc_cred *cred;
int res = 0;
+ nfs_inc_stats(inode, NFSIOS_VFSACCESS);
+
if (mask == 0)
goto out;
/* Is this sys_access() ? */
if (mask == 0)
goto out;
/* Is this sys_access() ? */
@@
-1679,13
+1721,15
@@
force_lookup:
res = PTR_ERR(cred);
unlock_kernel();
out:
res = PTR_ERR(cred);
unlock_kernel();
out:
+ dfprintk(VFS, "NFS: permission(%s/%ld), mask=0x%x, res=%d\n",
+ inode->i_sb->s_id, inode->i_ino, mask, res);
return res;
out_notsup:
res = nfs_revalidate_inode(NFS_SERVER(inode), inode);
if (res == 0)
res = generic_permission(inode, mask, NULL);
unlock_kernel();
return res;
out_notsup:
res = nfs_revalidate_inode(NFS_SERVER(inode), inode);
if (res == 0)
res = generic_permission(inode, mask, NULL);
unlock_kernel();
-
return res
;
+
goto out
;
}
/*
}
/*