*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/fs.h>
static struct inode *befs_iget(struct super_block *, unsigned long);
static struct inode *befs_alloc_inode(struct super_block *sb);
static void befs_destroy_inode(struct inode *inode);
-static int befs_init_inodecache(void);
static void befs_destroy_inodecache(void);
static void *befs_follow_link(struct dentry *, struct nameidata *);
static void *befs_fast_follow_link(struct dentry *, struct nameidata *);
ulong disk_off;
befs_debug(sb, "---> befs_get_block() for inode %lu, block %ld",
- inode->i_ino, block);
+ (unsigned long)inode->i_ino, (long)block);
if (block < 0) {
befs_error(sb, "befs_get_block() was asked for a block "
"number less than zero: block %ld in inode %lu",
- block, inode->i_ino);
+ (long)block, (unsigned long)inode->i_ino);
return -EIO;
}
if (create) {
befs_error(sb, "befs_get_block() was asked to write to "
- "block %ld in inode %lu", block, inode->i_ino);
+ "block %ld in inode %lu", (long)block,
+ (unsigned long)inode->i_ino);
return -EPERM;
}
res = befs_fblock2brun(sb, ds, block, &run);
if (res != BEFS_OK) {
befs_error(sb,
- "<--- befs_get_block() for inode %lu, block "
- "%ld ERROR", inode->i_ino, block);
+ "<--- %s for inode %lu, block %ld ERROR",
+ __func__, (unsigned long)inode->i_ino,
+ (long)block);
return -EFBIG;
}
map_bh(bh_result, inode->i_sb, disk_off);
- befs_debug(sb, "<--- befs_get_block() for inode %lu, block %ld, "
- "disk address %lu", inode->i_ino, block, disk_off);
+ befs_debug(sb, "<--- %s for inode %lu, block %ld, disk address %lu",
+ __func__, (unsigned long)inode->i_ino, (long)block,
+ (unsigned long)disk_off);
return 0;
}
char *utfname;
const char *name = dentry->d_name.name;
- befs_debug(sb, "---> befs_lookup() "
- "name %s inode %ld", dentry->d_name.name, dir->i_ino);
+ befs_debug(sb, "---> %s name %s inode %ld", __func__,
+ dentry->d_name.name, dir->i_ino);
/* Convert to UTF-8 */
if (BEFS_SB(sb)->nls) {
ret =
befs_nls2utf(sb, name, strlen(name), &utfname, &utfnamelen);
if (ret < 0) {
- befs_debug(sb, "<--- befs_lookup() ERROR");
+ befs_debug(sb, "<--- %s ERROR", __func__);
return ERR_PTR(ret);
}
ret = befs_btree_find(sb, ds, utfname, &offset);
}
if (ret == BEFS_BT_NOT_FOUND) {
- befs_debug(sb, "<--- befs_lookup() %s not found",
+ befs_debug(sb, "<--- %s %s not found", __func__,
dentry->d_name.name);
return ERR_PTR(-ENOENT);
} else if (ret != BEFS_OK || offset == 0) {
- befs_warning(sb, "<--- befs_lookup() Error");
+ befs_warning(sb, "<--- %s Error", __func__);
return ERR_PTR(-ENODATA);
}
d_add(dentry, inode);
- befs_debug(sb, "<--- befs_lookup()");
+ befs_debug(sb, "<--- %s", __func__);
return NULL;
}
char keybuf[BEFS_NAME_LEN + 1];
const char *dirname = file->f_path.dentry->d_name.name;
- befs_debug(sb, "---> befs_readdir() "
- "name %s, inode %ld, ctx->pos %Ld",
- dirname, inode->i_ino, ctx->pos);
+ befs_debug(sb, "---> %s name %s, inode %ld, ctx->pos %lld",
+ __func__, dirname, inode->i_ino, ctx->pos);
more:
result = befs_btree_read(sb, ds, ctx->pos, BEFS_NAME_LEN + 1,
keybuf, &keysize, &value);
if (result == BEFS_ERR) {
- befs_debug(sb, "<--- befs_readdir() ERROR");
+ befs_debug(sb, "<--- %s ERROR", __func__);
befs_error(sb, "IO error reading %s (inode %lu)",
dirname, inode->i_ino);
return -EIO;
} else if (result == BEFS_BT_END) {
- befs_debug(sb, "<--- befs_readdir() END");
+ befs_debug(sb, "<--- %s END", __func__);
return 0;
} else if (result == BEFS_BT_EMPTY) {
- befs_debug(sb, "<--- befs_readdir() Empty directory");
+ befs_debug(sb, "<--- %s Empty directory", __func__);
return 0;
}
result =
befs_utf2nls(sb, keybuf, keysize, &nlsname, &nlsnamelen);
if (result < 0) {
- befs_debug(sb, "<--- befs_readdir() ERROR");
+ befs_debug(sb, "<--- %s ERROR", __func__);
return result;
}
if (!dir_emit(ctx, nlsname, nlsnamelen,
ctx->pos++;
goto more;
- befs_debug(sb, "<--- befs_readdir() pos %Ld", ctx->pos);
+ befs_debug(sb, "<--- %s pos %lld", __func__, ctx->pos);
return 0;
}
struct inode *inode;
long ret = -EIO;
- befs_debug(sb, "---> befs_read_inode() " "inode = %lu", ino);
+ befs_debug(sb, "---> %s inode = %lu", __func__, ino);
inode = iget_locked(sb, ino);
if (!inode)
}
brelse(bh);
- befs_debug(sb, "<--- befs_read_inode()");
+ befs_debug(sb, "<--- %s", __func__);
unlock_new_inode(inode);
return inode;
unacquire_none:
iget_failed(inode);
- befs_debug(sb, "<--- befs_read_inode() - Bad inode");
+ befs_debug(sb, "<--- %s - Bad inode", __func__);
return ERR_PTR(ret);
}
*
* Taken from NFS implementation by Al Viro.
*/
-static int
+static int __init
befs_init_inodecache(void)
{
befs_inode_cachep = kmem_cache_create("befs_inode_cache",
SLAB_MEM_SPREAD),
init_once);
if (befs_inode_cachep == NULL) {
- printk(KERN_ERR "befs_init_inodecache: "
- "Couldn't initialize inode slabcache\n");
+ pr_err("%s: Couldn't initialize inode slabcache\n", __func__);
return -ENOMEM;
}
-
return 0;
}
*/
int maxlen = in_len + 1;
- befs_debug(sb, "---> utf2nls()");
+ befs_debug(sb, "---> %s", __func__);
if (!nls) {
- befs_error(sb, "befs_utf2nls called with no NLS table loaded");
+ befs_error(sb, "%s called with no NLS table loaded", __func__);
return -EINVAL;
}
*out = result = kmalloc(maxlen, GFP_NOFS);
if (!*out) {
- befs_error(sb, "befs_utf2nls() cannot allocate memory");
+ befs_error(sb, "%s cannot allocate memory", __func__);
*out_len = 0;
return -ENOMEM;
}
result[o] = '\0';
*out_len = o;
- befs_debug(sb, "<--- utf2nls()");
+ befs_debug(sb, "<--- %s", __func__);
return o;
conv_err:
befs_error(sb, "Name using character set %s contains a character that "
"cannot be converted to unicode.", nls->charset);
- befs_debug(sb, "<--- utf2nls()");
+ befs_debug(sb, "<--- %s", __func__);
kfree(result);
return -EILSEQ;
}
* in special cases */
int maxlen = (3 * in_len) + 1;
- befs_debug(sb, "---> nls2utf()\n");
+ befs_debug(sb, "---> %s\n", __func__);
if (!nls) {
- befs_error(sb, "befs_nls2utf called with no NLS table loaded.");
+ befs_error(sb, "%s called with no NLS table loaded.",
+ __func__);
return -EINVAL;
}
*out = result = kmalloc(maxlen, GFP_NOFS);
if (!*out) {
- befs_error(sb, "befs_nls2utf() cannot allocate memory");
+ befs_error(sb, "%s cannot allocate memory", __func__);
*out_len = 0;
return -ENOMEM;
}
result[o] = '\0';
*out_len = o;
- befs_debug(sb, "<--- nls2utf()");
+ befs_debug(sb, "<--- %s", __func__);
return i;
conv_err:
befs_error(sb, "Name using charecter set %s contains a charecter that "
"cannot be converted to unicode.", nls->charset);
- befs_debug(sb, "<--- nls2utf()");
+ befs_debug(sb, "<--- %s", __func__);
kfree(result);
return -EILSEQ;
}
if (option >= 0)
uid = make_kuid(current_user_ns(), option);
if (!uid_valid(uid)) {
- printk(KERN_ERR "BeFS: Invalid uid %d, "
- "using default\n", option);
+ pr_err("Invalid uid %d, "
+ "using default\n", option);
break;
}
opts->uid = uid;
if (option >= 0)
gid = make_kgid(current_user_ns(), option);
if (!gid_valid(gid)) {
- printk(KERN_ERR "BeFS: Invalid gid %d, "
- "using default\n", option);
+ pr_err("Invalid gid %d, "
+ "using default\n", option);
break;
}
opts->gid = gid;
kfree(opts->iocharset);
opts->iocharset = match_strdup(&args[0]);
if (!opts->iocharset) {
- printk(KERN_ERR "BeFS: allocation failure for "
- "iocharset string\n");
+ pr_err("allocation failure for "
+ "iocharset string\n");
return 0;
}
break;
opts->debug = 1;
break;
default:
- printk(KERN_ERR "BeFS: Unrecognized mount option \"%s\" "
- "or missing value\n", p);
+ pr_err("Unrecognized mount option \"%s\" "
+ "or missing value\n", p);
return 0;
}
}
save_mount_options(sb, data);
- sb->s_fs_info = kmalloc(sizeof (*befs_sb), GFP_KERNEL);
+ sb->s_fs_info = kzalloc(sizeof(*befs_sb), GFP_KERNEL);
if (sb->s_fs_info == NULL) {
- printk(KERN_ERR
- "BeFS(%s): Unable to allocate memory for private "
+ pr_err("(%s): Unable to allocate memory for private "
"portion of superblock. Bailing.\n", sb->s_id);
goto unacquire_none;
}
befs_sb = BEFS_SB(sb);
- memset(befs_sb, 0, sizeof(befs_sb_info));
if (!parse_options((char *) data, &befs_sb->mount_opts)) {
befs_error(sb, "cannot parse mount options");
goto unacquire_priv_sbp;
}
- befs_debug(sb, "---> befs_fill_super()");
+ befs_debug(sb, "---> %s", __func__);
#ifndef CONFIG_BEFS_RW
if (!(sb->s_flags & MS_RDONLY)) {
goto unacquire_priv_sbp;
if( befs_sb->num_blocks > ~((sector_t)0) ) {
- befs_error(sb, "blocks count: %Lu "
+ befs_error(sb, "blocks count: %llu "
"is larger than the host can use",
befs_sb->num_blocks);
goto unacquire_priv_sbp;
static int
befs_remount(struct super_block *sb, int *flags, char *data)
{
+ sync_filesystem(sb);
if (!(*flags & MS_RDONLY))
return -EINVAL;
return 0;
struct super_block *sb = dentry->d_sb;
u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
- befs_debug(sb, "---> befs_statfs()");
+ befs_debug(sb, "---> %s", __func__);
buf->f_type = BEFS_SUPER_MAGIC;
buf->f_bsize = sb->s_blocksize;
buf->f_fsid.val[1] = (u32)(id >> 32);
buf->f_namelen = BEFS_NAME_LEN;
- befs_debug(sb, "<--- befs_statfs()");
+ befs_debug(sb, "<--- %s", __func__);
return 0;
}
{
int err;
- printk(KERN_INFO "BeFS version: %s\n", BEFS_VERSION);
+ pr_info("version: %s\n", BEFS_VERSION);
err = befs_init_inodecache();
if (err)
kfree(num);
if (info->max_inline) {
- info->max_inline = max_t(u64,
+ info->max_inline = min_t(u64,
info->max_inline,
root->sectorsize);
}
struct btrfs_path *path;
struct btrfs_key location;
struct inode *inode;
+ struct dentry *dentry;
u64 dir_id;
int new = 0;
return dget(sb->s_root);
}
- return d_obtain_alias(inode);
+ dentry = d_obtain_alias(inode);
+ if (!IS_ERR(dentry)) {
+ spin_lock(&dentry->d_lock);
+ dentry->d_flags &= ~DCACHE_DISCONNECTED;
+ spin_unlock(&dentry->d_lock);
+ }
+ return dentry;
}
static int btrfs_fill_super(struct super_block *sb,
return ERR_PTR(error);
}
-static void btrfs_set_max_workers(struct btrfs_workers *workers, int new_limit)
-{
- spin_lock_irq(&workers->lock);
- workers->max_workers = new_limit;
- spin_unlock_irq(&workers->lock);
-}
-
static void btrfs_resize_thread_pool(struct btrfs_fs_info *fs_info,
int new_pool_size, int old_pool_size)
{
btrfs_info(fs_info, "resize thread pool %d -> %d",
old_pool_size, new_pool_size);
- btrfs_set_max_workers(&fs_info->generic_worker, new_pool_size);
- btrfs_set_max_workers(&fs_info->workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->delalloc_workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->submit_workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->caching_workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->fixup_workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->endio_workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->endio_meta_workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->endio_meta_write_workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->endio_write_workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->endio_freespace_worker, new_pool_size);
- btrfs_set_max_workers(&fs_info->delayed_workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->readahead_workers, new_pool_size);
- btrfs_set_max_workers(&fs_info->scrub_wr_completion_workers,
- new_pool_size);
+ btrfs_workqueue_set_max(fs_info->workers, new_pool_size);
+ btrfs_workqueue_set_max(fs_info->delalloc_workers, new_pool_size);
+ btrfs_workqueue_set_max(fs_info->submit_workers, new_pool_size);
+ btrfs_workqueue_set_max(fs_info->caching_workers, new_pool_size);
+ btrfs_workqueue_set_max(fs_info->endio_workers, new_pool_size);
+ btrfs_workqueue_set_max(fs_info->endio_meta_workers, new_pool_size);
+ btrfs_workqueue_set_max(fs_info->endio_meta_write_workers,
+ new_pool_size);
+ btrfs_workqueue_set_max(fs_info->endio_write_workers, new_pool_size);
+ btrfs_workqueue_set_max(fs_info->endio_freespace_worker, new_pool_size);
+ btrfs_workqueue_set_max(fs_info->delayed_workers, new_pool_size);
+ btrfs_workqueue_set_max(fs_info->readahead_workers, new_pool_size);
+ btrfs_workqueue_set_max(fs_info->scrub_wr_completion_workers,
+ new_pool_size);
}
static inline void btrfs_remount_prepare(struct btrfs_fs_info *fs_info)
unsigned int old_metadata_ratio = fs_info->metadata_ratio;
int ret;
+ sync_filesystem(sb);
btrfs_remount_prepare(fs_info);
ret = btrfs_parse_options(root, data);
sb->s_flags &= ~MS_RDONLY;
}
out:
+ wake_up_process(fs_info->transaction_kthread);
btrfs_remount_cleanup(fs_info, old_opts);
return 0;
static void
cifs_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
cifs_fscache_release_inode_cookie(inode);
}
static int cifs_remount(struct super_block *sb, int *flags, char *data)
{
+ sync_filesystem(sb);
*flags |= MS_NODIRATIME;
return 0;
}
init_rwsem(&cifsi->lock_sem);
}
-static int
+static int __init
cifs_init_inodecache(void)
{
cifs_inode_cachep = kmem_cache_create("cifs_inode_cache",
inode_init_once(&ei->vfs_inode);
}
-int coda_init_inodecache(void)
+int __init coda_init_inodecache(void)
{
coda_inode_cachep = kmem_cache_create("coda_inode_cache",
sizeof(struct coda_inode_info),
static int coda_remount(struct super_block *sb, int *flags, char *data)
{
+ sync_filesystem(sb);
*flags |= MS_NOATIME;
return 0;
}
static void coda_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
coda_cache_clear_inode(inode);
}
struct page *page = NULL;
if (blocknr + i < devsize) {
- page = read_mapping_page_async(mapping, blocknr + i,
- NULL);
+ page = read_mapping_page(mapping, blocknr + i, NULL);
/* synchronous error? */
if (IS_ERR(page))
page = NULL;
static int cramfs_remount(struct super_block *sb, int *flags, char *data)
{
+ sync_filesystem(sb);
*flags |= MS_RDONLY;
return 0;
}
int err;
struct debugfs_fs_info *fsi = sb->s_fs_info;
+ sync_filesystem(sb);
err = debugfs_parse_options(data, &fsi->mount_opts);
if (err)
goto fail;
* @name: a pointer to a string containing the name of the file to create.
* @mode: the permission that the file should have.
* @parent: a pointer to the parent dentry for this file. This should be a
- * directory dentry if set. If this paramater is NULL, then the
+ * directory dentry if set. If this parameter is NULL, then the
* file will be created in the root of the debugfs filesystem.
* @data: a pointer to something that the caller will want to get to later
* on. The inode.i_private pointer will point to this value on
* @name: a pointer to a string containing the name of the directory to
* create.
* @parent: a pointer to the parent dentry for this file. This should be a
- * directory dentry if set. If this paramater is NULL, then the
+ * directory dentry if set. If this parameter is NULL, then the
* directory will be created in the root of the debugfs filesystem.
*
* This function creates a directory in debugfs with the given name.
* @name: a pointer to a string containing the name of the symbolic link to
* create.
* @parent: a pointer to the parent dentry for this symbolic link. This
- * should be a directory dentry if set. If this paramater is NULL,
+ * should be a directory dentry if set. If this parameter is NULL,
* then the symbolic link will be created in the root of the debugfs
* filesystem.
* @target: a pointer to a string containing the path to the target of the
inode_init_once(&ei->vfs_inode);
}
-static int init_inodecache(void)
+static int __init init_inodecache(void)
{
efs_inode_cachep = kmem_cache_create("efs_inode_cache",
sizeof(struct efs_inode_info),
static int efs_remount(struct super_block *sb, int *flags, char *data)
{
+ sync_filesystem(sb);
*flags |= MS_RDONLY;
return 0;
}
#include <linux/slab.h>
#include <linux/ratelimit.h>
#include <linux/aio.h>
+#include <linux/bitops.h>
#include "ext4_jbd2.h"
#include "xattr.h"
jbd2_complete_transaction(journal, commit_tid);
filemap_write_and_wait(&inode->i_data);
}
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
WARN_ON(atomic_read(&EXT4_I(inode)->i_ioend_count));
goto no_delete;
if (ext4_should_order_data(inode))
ext4_begin_ordered_truncate(inode, 0);
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
WARN_ON(atomic_read(&EXT4_I(inode)->i_ioend_count));
if (is_bad_inode(inode))
{
struct extent_status es;
int retval;
+ int ret = 0;
#ifdef ES_AGGRESSIVE_TEST
struct ext4_map_blocks orig_map;
"logical block %lu\n", inode->i_ino, flags, map->m_len,
(unsigned long) map->m_lblk);
+ /*
+ * ext4_map_blocks returns an int, and m_len is an unsigned int
+ */
+ if (unlikely(map->m_len > INT_MAX))
+ map->m_len = INT_MAX;
+
/* Lookup extent status tree firstly */
if (ext4_es_lookup_extent(inode, map->m_lblk, &es)) {
ext4_es_lru_add(inode);
EXT4_GET_BLOCKS_KEEP_SIZE);
}
if (retval > 0) {
- int ret;
unsigned int status;
if (unlikely(retval != map->m_len)) {
found:
if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
- int ret = check_block_validity(inode, map);
+ ret = check_block_validity(inode, map);
if (ret != 0)
return ret;
}
* with buffer head unmapped.
*/
if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED)
- return retval;
+ /*
+ * If we need to convert extent to unwritten
+ * we continue and do the actual work in
+ * ext4_ext_map_blocks()
+ */
+ if (!(flags & EXT4_GET_BLOCKS_CONVERT_UNWRITTEN))
+ return retval;
/*
* Here we clear m_flags because after allocating an new extent,
ext4_clear_inode_state(inode, EXT4_STATE_DELALLOC_RESERVED);
if (retval > 0) {
- int ret;
unsigned int status;
if (unlikely(retval != map->m_len)) {
has_zeroout:
up_write((&EXT4_I(inode)->i_data_sem));
if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED) {
- int ret = check_block_validity(inode, map);
+ ret = check_block_validity(inode, map);
if (ret != 0)
return ret;
}
inode->i_mapping->a_ops = &ext4_aops;
}
- /*
- * ext4_block_truncate_page() zeroes out a mapping from file offset `from'
- * up to the end of the block which corresponds to `from'.
- * This required during truncate. We need to physically zero the tail end
- * of that block so it doesn't yield old data if the file is later grown.
- */
- int ext4_block_truncate_page(handle_t *handle,
- struct address_space *mapping, loff_t from)
- {
- unsigned offset = from & (PAGE_CACHE_SIZE-1);
- unsigned length;
- unsigned blocksize;
- struct inode *inode = mapping->host;
-
- blocksize = inode->i_sb->s_blocksize;
- length = blocksize - (offset & (blocksize - 1));
-
- return ext4_block_zero_page_range(handle, mapping, from, length);
- }
-
/*
* ext4_block_zero_page_range() zeros out a mapping of length 'length'
* starting from file offset 'from'. The range to be zero'd must
* the end of the block it will be shortened to end of the block
* that cooresponds to 'from'
*/
- int ext4_block_zero_page_range(handle_t *handle,
+ static int ext4_block_zero_page_range(handle_t *handle,
struct address_space *mapping, loff_t from, loff_t length)
{
ext4_fsblk_t index = from >> PAGE_CACHE_SHIFT;
return err;
}
+ /*
+ * ext4_block_truncate_page() zeroes out a mapping from file offset `from'
+ * up to the end of the block which corresponds to `from'.
+ * This required during truncate. We need to physically zero the tail end
+ * of that block so it doesn't yield old data if the file is later grown.
+ */
+ int ext4_block_truncate_page(handle_t *handle,
+ struct address_space *mapping, loff_t from)
+ {
+ unsigned offset = from & (PAGE_CACHE_SIZE-1);
+ unsigned length;
+ unsigned blocksize;
+ struct inode *inode = mapping->host;
+
+ blocksize = inode->i_sb->s_blocksize;
+ length = blocksize - (offset & (blocksize - 1));
+
+ return ext4_block_zero_page_range(handle, mapping, from, length);
+ }
+
int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,
loff_t lstart, loff_t length)
{
if (!S_ISREG(inode->i_mode))
return -EOPNOTSUPP;
- trace_ext4_punch_hole(inode, offset, length);
+ trace_ext4_punch_hole(inode, offset, length, 0);
/*
* Write out all dirty pages to avoid race conditions
up_write(&EXT4_I(inode)->i_data_sem);
if (IS_SYNC(inode))
ext4_handle_sync(handle);
+
+ /* Now release the pages again to reduce race window */
+ if (last_block_offset > first_block_offset)
+ truncate_pagecache_range(inode, first_block_offset,
+ last_block_offset);
+
inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
ext4_mark_inode_dirty(handle, inode);
out_stop:
/*
* There is a possibility that we're either freeing the inode
- * or it completely new indode. In those cases we might not
+ * or it's a completely new inode. In those cases we might not
* have i_mutex locked because it's not necessary.
*/
if (!(inode->i_state & (I_NEW|I_FREEING)))
new_fl |= S_NOATIME;
if (flags & EXT4_DIRSYNC_FL)
new_fl |= S_DIRSYNC;
- set_mask_bits(&inode->i_flags,
- S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC, new_fl);
+ inode_set_flags(inode, new_fl,
+ S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
}
/* Propagate flags from i_flags to EXT4_I(inode)->i_flags */
EXT4_INODE_GET_XTIME(i_atime, inode, raw_inode);
EXT4_EINODE_GET_XTIME(i_crtime, ei, raw_inode);
- inode->i_version = le32_to_cpu(raw_inode->i_disk_version);
- if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) {
- if (EXT4_FITS_IN_INODE(raw_inode, ei, i_version_hi))
- inode->i_version |=
- (__u64)(le32_to_cpu(raw_inode->i_version_hi)) << 32;
+ if (likely(!test_opt2(inode->i_sb, HURD_COMPAT))) {
+ inode->i_version = le32_to_cpu(raw_inode->i_disk_version);
+ if (EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) {
+ if (EXT4_FITS_IN_INODE(raw_inode, ei, i_version_hi))
+ inode->i_version |=
+ (__u64)(le32_to_cpu(raw_inode->i_version_hi)) << 32;
+ }
}
ret = 0;
goto out_brelse;
raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
raw_inode->i_flags = cpu_to_le32(ei->i_flags & 0xFFFFFFFF);
- if (EXT4_SB(inode->i_sb)->s_es->s_creator_os !=
- cpu_to_le32(EXT4_OS_HURD))
+ if (likely(!test_opt2(inode->i_sb, HURD_COMPAT)))
raw_inode->i_file_acl_high =
cpu_to_le16(ei->i_file_acl >> 32);
raw_inode->i_file_acl_lo = cpu_to_le32(ei->i_file_acl);
raw_inode->i_block[block] = ei->i_data[block];
}
- raw_inode->i_disk_version = cpu_to_le32(inode->i_version);
- if (ei->i_extra_isize) {
- if (EXT4_FITS_IN_INODE(raw_inode, ei, i_version_hi))
- raw_inode->i_version_hi =
- cpu_to_le32(inode->i_version >> 32);
- raw_inode->i_extra_isize = cpu_to_le16(ei->i_extra_isize);
+ if (likely(!test_opt2(inode->i_sb, HURD_COMPAT))) {
+ raw_inode->i_disk_version = cpu_to_le32(inode->i_version);
+ if (ei->i_extra_isize) {
+ if (EXT4_FITS_IN_INODE(raw_inode, ei, i_version_hi))
+ raw_inode->i_version_hi =
+ cpu_to_le32(inode->i_version >> 32);
+ raw_inode->i_extra_isize =
+ cpu_to_le16(ei->i_extra_isize);
+ }
}
ext4_inode_csum_set(inode, raw_inode, ei);
return -EIO;
}
- if (wbc->sync_mode != WB_SYNC_ALL)
+ /*
+ * No need to force transaction in WB_SYNC_NONE mode. Also
+ * ext4_sync_fs() will force the commit after everything is
+ * written.
+ */
+ if (wbc->sync_mode != WB_SYNC_ALL || wbc->for_sync)
return 0;
err = ext4_force_commit(inode->i_sb);
err = __ext4_get_inode_loc(inode, &iloc, 0);
if (err)
return err;
- if (wbc->sync_mode == WB_SYNC_ALL)
+ /*
+ * sync(2) will flush the whole buffer cache. No need to do
+ * it here separately for each inode.
+ */
+ if (wbc->sync_mode == WB_SYNC_ALL && !wbc->for_sync)
sync_dirty_buffer(iloc.bh);
if (buffer_req(iloc.bh) && !buffer_uptodate(iloc.bh)) {
EXT4_ERROR_INODE_BLOCK(inode, iloc.bh->b_blocknr,
static void fat_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
if (!inode->i_nlink) {
inode->i_size = 0;
fat_truncate_blocks(inode, 0);
struct msdos_sb_info *sbi = MSDOS_SB(sb);
*flags |= MS_NODIRATIME | (sbi->options.isvfat ? 0 : MS_NOATIME);
+ sync_filesystem(sb);
+
/* make sure we update state on remount. */
new_rdonly = *flags & MS_RDONLY;
if (new_rdonly != (sb->s_flags & MS_RDONLY)) {
static void fuse_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
if (inode->i_sb->s_flags & MS_ACTIVE) {
struct fuse_conn *fc = get_fuse_conn(inode);
static int fuse_remount_fs(struct super_block *sb, int *flags, char *data)
{
+ sync_filesystem(sb);
if (*flags & MS_MANDLOCK)
return -EINVAL;
inode->i_blocks = attr->blocks;
inode->i_atime.tv_sec = attr->atime;
inode->i_atime.tv_nsec = attr->atimensec;
- inode->i_mtime.tv_sec = attr->mtime;
- inode->i_mtime.tv_nsec = attr->mtimensec;
+ /* mtime from server may be stale due to local buffered write */
+ if (!fc->writeback_cache || !S_ISREG(inode->i_mode)) {
+ inode->i_mtime.tv_sec = attr->mtime;
+ inode->i_mtime.tv_nsec = attr->mtimensec;
+ }
inode->i_ctime.tv_sec = attr->ctime;
inode->i_ctime.tv_nsec = attr->ctimensec;
{
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
+ bool is_wb = fc->writeback_cache;
loff_t oldsize;
struct timespec old_mtime;
fuse_change_attributes_common(inode, attr, attr_valid);
oldsize = inode->i_size;
- i_size_write(inode, attr->size);
+ /*
+ * In case of writeback_cache enabled, the cached writes beyond EOF
+ * extend local i_size without keeping userspace server in sync. So,
+ * attr->size coming from server can be stale. We cannot trust it.
+ */
+ if (!is_wb || !S_ISREG(inode->i_mode))
+ i_size_write(inode, attr->size);
spin_unlock(&fc->lock);
- if (S_ISREG(inode->i_mode)) {
+ if (!is_wb && S_ISREG(inode->i_mode)) {
bool inval = false;
if (oldsize != attr->size) {
{
inode->i_mode = attr->mode & S_IFMT;
inode->i_size = attr->size;
+ inode->i_mtime.tv_sec = attr->mtime;
+ inode->i_mtime.tv_nsec = attr->mtimensec;
if (S_ISREG(inode->i_mode)) {
fuse_init_common(inode);
fuse_init_file_inode(inode);
return NULL;
if ((inode->i_state & I_NEW)) {
- inode->i_flags |= S_NOATIME|S_NOCMTIME;
+ inode->i_flags |= S_NOATIME;
+ if (!fc->writeback_cache || !S_ISREG(inode->i_mode))
+ inode->i_flags |= S_NOCMTIME;
inode->i_generation = generation;
inode->i_data.backing_dev_info = &fc->bdi;
fuse_init_inode(inode, attr);
}
if (arg->flags & FUSE_ASYNC_DIO)
fc->async_dio = 1;
+ if (arg->flags & FUSE_WRITEBACK_CACHE)
+ fc->writeback_cache = 1;
} else {
ra_pages = fc->max_read / PAGE_CACHE_SIZE;
fc->no_lock = 1;
FUSE_EXPORT_SUPPORT | FUSE_BIG_WRITES | FUSE_DONT_MASK |
FUSE_SPLICE_WRITE | FUSE_SPLICE_MOVE | FUSE_SPLICE_READ |
FUSE_FLOCK_LOCKS | FUSE_IOCTL_DIR | FUSE_AUTO_INVAL_DATA |
- FUSE_DO_READDIRPLUS | FUSE_READDIRPLUS_AUTO | FUSE_ASYNC_DIO;
+ FUSE_DO_READDIRPLUS | FUSE_READDIRPLUS_AUTO | FUSE_ASYNC_DIO |
+ FUSE_WRITEBACK_CACHE;
req->in.h.opcode = FUSE_INIT;
req->in.numargs = 1;
req->in.args[0].size = sizeof(*arg);
* of the GNU General Public License version 2.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/bio.h>
#include <linux/sched.h>
#include <linux/slab.h>
break;
case Opt_debug:
if (args->ar_errors == GFS2_ERRORS_PANIC) {
- printk(KERN_WARNING "GFS2: -o debug and -o errors=panic "
- "are mutually exclusive.\n");
+ pr_warn("-o debug and -o errors=panic are mutually exclusive\n");
return -EINVAL;
}
args->ar_debug = 1;
case Opt_commit:
rv = match_int(&tmp[0], &args->ar_commit);
if (rv || args->ar_commit <= 0) {
- printk(KERN_WARNING "GFS2: commit mount option requires a positive numeric argument\n");
+ pr_warn("commit mount option requires a positive numeric argument\n");
return rv ? rv : -EINVAL;
}
break;
case Opt_statfs_quantum:
rv = match_int(&tmp[0], &args->ar_statfs_quantum);
if (rv || args->ar_statfs_quantum < 0) {
- printk(KERN_WARNING "GFS2: statfs_quantum mount option requires a non-negative numeric argument\n");
+ pr_warn("statfs_quantum mount option requires a non-negative numeric argument\n");
return rv ? rv : -EINVAL;
}
break;
case Opt_quota_quantum:
rv = match_int(&tmp[0], &args->ar_quota_quantum);
if (rv || args->ar_quota_quantum <= 0) {
- printk(KERN_WARNING "GFS2: quota_quantum mount option requires a positive numeric argument\n");
+ pr_warn("quota_quantum mount option requires a positive numeric argument\n");
return rv ? rv : -EINVAL;
}
break;
rv = match_int(&tmp[0], &args->ar_statfs_percent);
if (rv || args->ar_statfs_percent < 0 ||
args->ar_statfs_percent > 100) {
- printk(KERN_WARNING "statfs_percent mount option requires a numeric argument between 0 and 100\n");
+ pr_warn("statfs_percent mount option requires a numeric argument between 0 and 100\n");
return rv ? rv : -EINVAL;
}
break;
break;
case Opt_err_panic:
if (args->ar_debug) {
- printk(KERN_WARNING "GFS2: -o debug and -o errors=panic "
- "are mutually exclusive.\n");
+ pr_warn("-o debug and -o errors=panic are mutually exclusive\n");
return -EINVAL;
}
args->ar_errors = GFS2_ERRORS_PANIC;
break;
case Opt_error:
default:
- printk(KERN_WARNING "GFS2: invalid mount option: %s\n", o);
+ pr_warn("invalid mount option: %s\n", o);
return -EINVAL;
}
}
void gfs2_jindex_free(struct gfs2_sbd *sdp)
{
- struct list_head list, *head;
+ struct list_head list;
struct gfs2_jdesc *jd;
- struct gfs2_journal_extent *jext;
spin_lock(&sdp->sd_jindex_spin);
list_add(&list, &sdp->sd_jindex_list);
while (!list_empty(&list)) {
jd = list_entry(list.next, struct gfs2_jdesc, jd_list);
- head = &jd->extent_list;
- while (!list_empty(head)) {
- jext = list_entry(head->next,
- struct gfs2_journal_extent,
- extent_list);
- list_del(&jext->extent_list);
- kfree(jext);
- }
+ gfs2_free_journal_extents(jd);
list_del(&jd->jd_list);
iput(jd->jd_inode);
kfree(jd);
struct gfs2_tune *gt = &sdp->sd_tune;
int error;
+ sync_filesystem(sb);
+
spin_lock(>->gt_spin);
args.ar_commit = gt->gt_logd_secs;
args.ar_quota_quantum = gt->gt_quota_quantum;
{
struct gfs2_inode *ip = GFS2_I(inode);
- if (inode->i_nlink) {
+ if (!test_bit(GIF_FREE_VFS_INODE, &ip->i_flags) && inode->i_nlink) {
struct gfs2_glock *gl = ip->i_iopen_gh.gh_gl;
if (gl && test_bit(GLF_DEMOTE, &gl->gl_flags))
clear_nlink(inode);
struct gfs2_holder gh;
int error;
+ if (test_bit(GIF_FREE_VFS_INODE, &ip->i_flags)) {
+ clear_inode(inode);
+ return;
+ }
+
if (inode->i_nlink || (sb->s_flags & MS_RDONLY))
goto out;
fs_warn(sdp, "gfs2_evict_inode: %d\n", error);
out:
/* Case 3 starts here */
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
gfs2_rs_delete(ip, NULL);
gfs2_ordered_del_inode(ip);
clear_inode(inode);
static void hfsplus_evict_inode(struct inode *inode)
{
hfs_dbg(INODE, "hfsplus_evict_inode: %lu\n", inode->i_ino);
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
if (HFSPLUS_IS_RSRC(inode)) {
HFSPLUS_I(HFSPLUS_I(inode)->rsrc_inode)->rsrc_inode = NULL;
static int hfsplus_remount(struct super_block *sb, int *flags, char *data)
{
+ sync_filesystem(sb);
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
return 0;
if (!(*flags & MS_RDONLY)) {
*/
spin_lock_irq(&inode->i_data.tree_lock);
BUG_ON(inode->i_data.nrpages);
+ BUG_ON(inode->i_data.nrshadows);
spin_unlock_irq(&inode->i_data.tree_lock);
BUG_ON(!list_empty(&inode->i_data.private_list));
BUG_ON(!(inode->i_state & I_FREEING));
if (op->evict_inode) {
op->evict_inode(inode);
} else {
- if (inode->i_data.nrpages)
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
}
if (S_ISBLK(inode->i_mode) && inode->i_bdev)
/**
* lock_two_nondirectories - take two i_mutexes on non-directory objects
+ *
+ * Lock any non-NULL argument that is not a directory.
+ * Zero, one or two objects may be locked by this function.
+ *
* @inode1: first inode to lock
* @inode2: second inode to lock
*/
void lock_two_nondirectories(struct inode *inode1, struct inode *inode2)
{
- WARN_ON_ONCE(S_ISDIR(inode1->i_mode));
- if (inode1 == inode2 || !inode2) {
- mutex_lock(&inode1->i_mutex);
- return;
- }
- WARN_ON_ONCE(S_ISDIR(inode2->i_mode));
- if (inode1 < inode2) {
+ if (inode1 > inode2)
+ swap(inode1, inode2);
+
+ if (inode1 && !S_ISDIR(inode1->i_mode))
mutex_lock(&inode1->i_mutex);
+ if (inode2 && !S_ISDIR(inode2->i_mode) && inode2 != inode1)
mutex_lock_nested(&inode2->i_mutex, I_MUTEX_NONDIR2);
- } else {
- mutex_lock(&inode2->i_mutex);
- mutex_lock_nested(&inode1->i_mutex, I_MUTEX_NONDIR2);
- }
}
EXPORT_SYMBOL(lock_two_nondirectories);
*/
void unlock_two_nondirectories(struct inode *inode1, struct inode *inode2)
{
- mutex_unlock(&inode1->i_mutex);
- if (inode2 && inode2 != inode1)
+ if (inode1 && !S_ISDIR(inode1->i_mode))
+ mutex_unlock(&inode1->i_mutex);
+ if (inode2 && !S_ISDIR(inode2->i_mode) && inode2 != inode1)
mutex_unlock(&inode2->i_mutex);
}
EXPORT_SYMBOL(unlock_two_nondirectories);
wake_up_bit(&inode->i_state, __I_DIO_WAKEUP);
}
EXPORT_SYMBOL(inode_dio_done);
+
+ /*
+ * inode_set_flags - atomically set some inode flags
+ *
+ * Note: the caller should be holding i_mutex, or else be sure that
+ * they have exclusive access to the inode structure (i.e., while the
+ * inode is being instantiated). The reason for the cmpxchg() loop
+ * --- which wouldn't be necessary if all code paths which modify
+ * i_flags actually followed this rule, is that there is at least one
+ * code path which doesn't today --- for example,
+ * __generic_file_aio_write() calls file_remove_suid() without holding
+ * i_mutex --- so we use cmpxchg() out of an abundance of caution.
+ *
+ * In the long run, i_mutex is overkill, and we should probably look
+ * at using the i_lock spinlock to protect i_flags, and then make sure
+ * it is so documented in include/linux/fs.h and that all code follows
+ * the locking convention!!
+ */
+ void inode_set_flags(struct inode *inode, unsigned int flags,
+ unsigned int mask)
+ {
+ unsigned int old_flags, new_flags;
+
+ WARN_ON_ONCE(flags & ~mask);
+ do {
+ old_flags = ACCESS_ONCE(inode->i_flags);
+ new_flags = (old_flags & ~mask) | flags;
+ } while (unlikely(cmpxchg(&inode->i_flags, old_flags,
+ new_flags) != old_flags));
+ }
+ EXPORT_SYMBOL(inode_set_flags);
static void minix_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
if (!inode->i_nlink) {
inode->i_size = 0;
minix_truncate(inode);
inode_init_once(&ei->vfs_inode);
}
-static int init_inodecache(void)
+static int __init init_inodecache(void)
{
minix_inode_cachep = kmem_cache_create("minix_inode_cache",
sizeof(struct minix_inode_info),
struct minix_sb_info * sbi = minix_sb(sb);
struct minix_super_block * ms;
+ sync_filesystem(sb);
ms = sbi->s_ms;
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
return 0;
static int ncp_remount(struct super_block *sb, int *flags, char* data)
{
+ sync_filesystem(sb);
*flags |= MS_NODIRATIME;
return 0;
}
static void
ncp_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
if (S_ISDIR(inode->i_mode)) {
if (!oi)
return NULL;
+ oi->i_sync_tid = 0;
+ oi->i_datasync_tid = 0;
+
jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode);
return &oi->vfs_inode;
}
struct ocfs2_super *osb = OCFS2_SB(sb);
u32 tmp;
+ sync_filesystem(sb);
+
if (!ocfs2_parse_options(sb, data, &parsed_options, 1) ||
!ocfs2_check_set_options(sb, &parsed_options)) {
ret = -EINVAL;
return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super);
}
-static void ocfs2_kill_sb(struct super_block *sb)
-{
- struct ocfs2_super *osb = OCFS2_SB(sb);
-
- /* Failed mount? */
- if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED)
- goto out;
-
- /* Prevent further queueing of inode drop events */
- spin_lock(&dentry_list_lock);
- ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED);
- spin_unlock(&dentry_list_lock);
- /* Wait for work to finish and/or remove it */
- cancel_work_sync(&osb->dentry_lock_work);
-out:
- kill_block_super(sb);
-}
-
static struct file_system_type ocfs2_fs_type = {
.owner = THIS_MODULE,
.name = "ocfs2",
.mount = ocfs2_mount,
- .kill_sb = ocfs2_kill_sb,
-
+ .kill_sb = kill_block_super,
.fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE,
.next = NULL
};
return 0;
}
-wait_queue_head_t ocfs2__ioend_wq[OCFS2_IOEND_WQ_HASH_SZ];
-
static int __init ocfs2_init(void)
{
- int status, i;
-
- for (i = 0; i < OCFS2_IOEND_WQ_HASH_SZ; i++)
- init_waitqueue_head(&ocfs2__ioend_wq[i]);
+ int status;
status = init_ocfs2_uptodate_cache();
if (status < 0)
ocfs2_extent_map_init(&oi->vfs_inode);
INIT_LIST_HEAD(&oi->ip_io_markers);
oi->ip_dir_start_lookup = 0;
- atomic_set(&oi->ip_unaligned_aio, 0);
+ mutex_init(&oi->ip_unaligned_aio);
init_rwsem(&oi->ip_alloc_sem);
init_rwsem(&oi->ip_xattr_sem);
mutex_init(&oi->ip_io_mutex);
debugfs_remove(osb->osb_ctxt);
- /*
- * Flush inode dropping work queue so that deletes are
- * performed while the filesystem is still working
- */
- ocfs2_drop_all_dl_inodes(osb);
-
/* Orphan scan should be stopped as early as possible */
ocfs2_orphan_scan_stop(osb);
ocfs2_disable_quotas(osb);
+ /* All dquots should be freed by now */
+ WARN_ON(!llist_empty(&osb->dquot_drop_list));
+ /* Wait for worker to be done with the work structure in osb */
+ cancel_work_sync(&osb->dquot_drop_work);
+
ocfs2_shutdown_local_alloc(osb);
/* This will disable recovery and flush any recovery work. */
struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data;
struct inode *inode = NULL;
struct ocfs2_journal *journal;
- __le32 uuid_net_key;
struct ocfs2_super *osb;
u64 total_blocks;
spin_lock_init(&osb->osb_xattr_lock);
ocfs2_init_steal_slots(osb);
+ mutex_init(&osb->system_file_mutex);
+
atomic_set(&osb->alloc_stats.moves, 0);
atomic_set(&osb->alloc_stats.local_data, 0);
atomic_set(&osb->alloc_stats.bitmap_data, 0);
INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery);
journal->j_state = OCFS2_JOURNAL_FREE;
- INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes);
- osb->dentry_lock_list = NULL;
+ INIT_WORK(&osb->dquot_drop_work, ocfs2_drop_dquot_refs);
+ init_llist_head(&osb->dquot_drop_list);
/* get some pseudo constants for clustersize bits */
osb->s_clustersize_bits =
goto bail;
}
- memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key));
-
strncpy(osb->vol_label, di->id2.i_super.s_label, 63);
osb->vol_label[63] = '\0';
osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno);
int proc_remount(struct super_block *sb, int *flags, char *data)
{
struct pid_namespace *pid = sb->s_fs_info;
+
+ sync_filesystem(sb);
return !proc_parse_options(data, pid);
}
proc_mkdir("openprom", NULL);
#endif
proc_tty_init();
-#ifdef CONFIG_PROC_DEVICETREE
- proc_device_tree_init();
-#endif
proc_mkdir("bus", NULL);
proc_sys_init();
}
static int reiserfs_remount(struct super_block *s, int *flags, char *data);
static int reiserfs_statfs(struct dentry *dentry, struct kstatfs *buf);
-void show_alloc_options(struct seq_file *seq, struct super_block *s);
static int reiserfs_sync_fs(struct super_block *s, int wait)
{
inode_init_once(&ei->vfs_inode);
}
-static int init_inodecache(void)
+static int __init init_inodecache(void)
{
reiserfs_inode_cachep = kmem_cache_create("reiser_inode_cache",
sizeof(struct
int i;
#endif
+ sync_filesystem(s);
reiserfs_write_lock(s);
#ifdef CONFIG_QUOTA
{
struct sysv_sb_info *sbi = SYSV_SB(sb);
+ sync_filesystem(sb);
if (sbi->s_forced_ro)
*flags |= MS_RDONLY;
return 0;
static void sysv_evict_inode(struct inode *inode)
{
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
if (!inode->i_nlink) {
inode->i_size = 0;
sysv_truncate(inode);
dbg_gen("inode %lu, mode %#x", inode->i_ino, (int)inode->i_mode);
ubifs_assert(!atomic_read(&inode->i_count));
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
if (inode->i_nlink)
goto done;
int err;
struct ubifs_info *c = sb->s_fs_info;
+ sync_filesystem(sb);
dbg_gen("old flags %#lx, new flags %#x", sb->s_flags, *flags);
err = ubifs_parse_options(c, data, 1);
struct super_block *sb = mp->m_super;
if (down_read_trylock(&sb->s_umount)) {
- sync_inodes_sb(sb, jiffies);
+ sync_inodes_sb(sb);
up_read(&sb->s_umount);
}
}
trace_xfs_evict_inode(ip);
- truncate_inode_pages(&inode->i_data, 0);
+ truncate_inode_pages_final(&inode->i_data);
clear_inode(inode);
XFS_STATS_INC(vn_rele);
XFS_STATS_INC(vn_remove);
char *p;
int error;
+ sync_filesystem(sb);
while ((p = strsep(&options, ",")) != NULL) {
int token;
/* File is opened with O_PATH; almost nothing can be done with it */
#define FMODE_PATH ((__force fmode_t)0x4000)
+/* File needs atomic accesses to f_pos */
+#define FMODE_ATOMIC_POS ((__force fmode_t)0x8000)
+
/* File was opened by fanotify and shouldn't generate fanotify events */
#define FMODE_NONOTIFY ((__force fmode_t)0x1000000)
struct mutex i_mmap_mutex; /* protect tree, count, list */
/* Protected by tree_lock together with the radix tree */
unsigned long nrpages; /* number of total pages */
+ unsigned long nrshadows; /* number of shadow entries */
pgoff_t writeback_index;/* writeback starts here */
const struct address_space_operations *a_ops; /* methods */
unsigned long flags; /* error bits/gfp mask */
atomic_t i_count;
atomic_t i_dio_count;
atomic_t i_writecount;
+#ifdef CONFIG_IMA
+ atomic_t i_readcount; /* struct files open RO */
+#endif
const struct file_operations *i_fop; /* former ->i_op->default_file_ops */
struct file_lock *i_flock;
struct address_space i_data;
struct hlist_head i_fsnotify_marks;
#endif
-#ifdef CONFIG_IMA
- atomic_t i_readcount; /* struct files open RO */
-#endif
void *i_private; /* fs or device private pointer */
};
const struct file_operations *f_op;
/*
- * Protects f_ep_links, f_flags, f_pos vs i_size in lseek SEEK_CUR.
+ * Protects f_ep_links, f_flags.
* Must not be taken from IRQ context.
*/
spinlock_t f_lock;
atomic_long_t f_count;
unsigned int f_flags;
fmode_t f_mode;
+ struct mutex f_pos_lock;
loff_t f_pos;
struct fown_struct f_owner;
const struct cred *f_cred;
#ifdef CONFIG_DEBUG_WRITECOUNT
unsigned long f_mnt_write_state;
#endif
-};
+} __attribute__((aligned(4))); /* lest something weird decides that 2 is OK */
struct file_handle {
__u32 handle_bytes;
#define FL_SLEEP 128 /* A blocking lock */
#define FL_DOWNGRADE_PENDING 256 /* Lease is being downgraded */
#define FL_UNLOCK_PENDING 512 /* Lease is being broken */
+#define FL_FILE_PVT 1024 /* lock is private to the file */
/*
* Special return value from posix_lock_file() and vfs_lock_file() for
extern void send_sigio(struct fown_struct *fown, int fd, int band);
#ifdef CONFIG_FILE_LOCKING
-extern int fcntl_getlk(struct file *, struct flock __user *);
+extern int fcntl_getlk(struct file *, unsigned int, struct flock __user *);
extern int fcntl_setlk(unsigned int, struct file *, unsigned int,
struct flock __user *);
#if BITS_PER_LONG == 32
-extern int fcntl_getlk64(struct file *, struct flock64 __user *);
+extern int fcntl_getlk64(struct file *, unsigned int, struct flock64 __user *);
extern int fcntl_setlk64(unsigned int, struct file *, unsigned int,
struct flock64 __user *);
#endif
extern void locks_copy_lock(struct file_lock *, struct file_lock *);
extern void __locks_copy_lock(struct file_lock *, const struct file_lock *);
extern void locks_remove_posix(struct file *, fl_owner_t);
-extern void locks_remove_flock(struct file *);
+extern void locks_remove_file(struct file *);
extern void locks_release_private(struct file_lock *);
extern void posix_test_lock(struct file *, struct file_lock *);
extern int posix_lock_file(struct file *, struct file_lock *, struct file_lock *);
extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
#else /* !CONFIG_FILE_LOCKING */
-static inline int fcntl_getlk(struct file *file, struct flock __user *user)
+static inline int fcntl_getlk(struct file *file, unsigned int cmd,
+ struct flock __user *user)
{
return -EINVAL;
}
}
#if BITS_PER_LONG == 32
-static inline int fcntl_getlk64(struct file *file, struct flock64 __user *user)
+static inline int fcntl_getlk64(struct file *file, unsigned int cmd,
+ struct flock64 __user *user)
{
return -EINVAL;
}
return;
}
-static inline void locks_remove_flock(struct file *filp)
+static inline void locks_remove_file(struct file *filp)
{
return;
}
extern int vfs_link(struct dentry *, struct inode *, struct dentry *, struct inode **);
extern int vfs_rmdir(struct inode *, struct dentry *);
extern int vfs_unlink(struct inode *, struct dentry *, struct inode **);
-extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *, struct inode **);
+extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *, struct inode **, unsigned int);
/*
* VFS dentry helper functions.
int (*mknod) (struct inode *,struct dentry *,umode_t,dev_t);
int (*rename) (struct inode *, struct dentry *,
struct inode *, struct dentry *);
+ int (*rename2) (struct inode *, struct dentry *,
+ struct inode *, struct dentry *, unsigned int);
int (*setattr) (struct dentry *, struct iattr *);
int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *);
int (*setxattr) (struct dentry *, const char *,const void *,size_t,int);
extern void ihold(struct inode * inode);
extern void iput(struct inode *);
+static inline struct inode *file_inode(struct file *f)
+{
+ return f->f_inode;
+}
+
/* /sys/fs */
extern struct kobject *fs_kobj;
#define FLOCK_VERIFY_WRITE 2
#ifdef CONFIG_FILE_LOCKING
-extern int locks_mandatory_locked(struct inode *);
+extern int locks_mandatory_locked(struct file *);
extern int locks_mandatory_area(int, struct inode *, struct file *, loff_t, size_t);
/*
return IS_MANDLOCK(ino) && __mandatory_lock(ino);
}
-static inline int locks_verify_locked(struct inode *inode)
+static inline int locks_verify_locked(struct file *file)
{
- if (mandatory_lock(inode))
- return locks_mandatory_locked(inode);
+ if (mandatory_lock(file_inode(file)))
+ return locks_mandatory_locked(file);
return 0;
}
static inline int break_lease(struct inode *inode, unsigned int mode)
{
+ /*
+ * Since this check is lockless, we must ensure that any refcounts
+ * taken are done before checking inode->i_flock. Otherwise, we could
+ * end up racing with tasks trying to set a new lease on this file.
+ */
+ smp_mb();
if (inode->i_flock)
return __break_lease(inode, mode, FL_LEASE);
return 0;
}
#else /* !CONFIG_FILE_LOCKING */
-static inline int locks_mandatory_locked(struct inode *inode)
+static inline int locks_mandatory_locked(struct file *file)
{
return 0;
}
return 0;
}
-static inline int locks_verify_locked(struct inode *inode)
+static inline int locks_verify_locked(struct file *file)
{
return 0;
}
static inline bool execute_ok(struct inode *inode)
{
return (inode->i_mode & S_IXUGO) || S_ISDIR(inode->i_mode);
-}
-
-static inline struct inode *file_inode(struct file *f)
-{
- return f->f_inode;
}
static inline void file_start_write(struct file *file)
void inode_dio_wait(struct inode *inode);
void inode_dio_done(struct inode *inode);
+ extern void inode_set_flags(struct inode *inode, unsigned int flags,
+ unsigned int mask);
+
extern const struct file_operations generic_ro_fops;
#define special_file(m) (S_ISCHR(m)||S_ISBLK(m)||S_ISFIFO(m)||S_ISSOCK(m))
projects / karo-tx-linux.git / commitdiff