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[readdir] convert reiserfs 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-05-17 22:42:17 -04:00
parent 956ce2083c
commit 4acf381e1b
3 changed files with 19 additions and 23 deletions
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26
fs/reiserfs/dir.c
View File

@ -13,14 +13,14 @@
extern const struct reiserfs_key MIN_KEY;
static int reiserfs_readdir(struct file *, void *, filldir_t);
static int reiserfs_readdir(struct file *, struct dir_context *);
static int reiserfs_dir_fsync(struct file *filp, loff_t start, loff_t end,
int datasync);
const struct file_operations reiserfs_dir_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
.readdir = reiserfs_readdir,
.iterate = reiserfs_readdir,
.fsync = reiserfs_dir_fsync,
.unlocked_ioctl = reiserfs_ioctl,
#ifdef CONFIG_COMPAT
@ -58,8 +58,7 @@ static inline bool is_privroot_deh(struct dentry *dir,
deh->deh_objectid == INODE_PKEY(privroot->d_inode)->k_objectid);
}
int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
filldir_t filldir, loff_t *pos)
int reiserfs_readdir_dentry(struct dentry *dentry, struct dir_context *ctx)
{
struct inode *inode = dentry->d_inode;
struct cpu_key pos_key; /* key of current position in the directory (key of directory entry) */
@ -81,7 +80,7 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
/* form key for search the next directory entry using f_pos field of
file structure */
make_cpu_key(&pos_key, inode, *pos ?: DOT_OFFSET, TYPE_DIRENTRY, 3);
make_cpu_key(&pos_key, inode, ctx->pos ?: DOT_OFFSET, TYPE_DIRENTRY, 3);
next_pos = cpu_key_k_offset(&pos_key);
path_to_entry.reada = PATH_READA;
@ -126,7 +125,6 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
entry_num++, deh++) {
int d_reclen;
char *d_name;
off_t d_off;
ino_t d_ino;
if (!de_visible(deh))
@ -158,8 +156,7 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
if (is_privroot_deh(dentry, deh))
continue;
d_off = deh_offset(deh);
*pos = d_off;
ctx->pos = deh_offset(deh);
d_ino = deh_objectid(deh);
if (d_reclen <= 32) {
local_buf = small_buf;
@ -187,9 +184,9 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
* the write lock here for other waiters
*/
reiserfs_write_unlock(inode->i_sb);
if (filldir
(dirent, local_buf, d_reclen, d_off, d_ino,
DT_UNKNOWN) < 0) {
if (!dir_emit
(ctx, local_buf, d_reclen, d_ino,
DT_UNKNOWN)) {
reiserfs_write_lock(inode->i_sb);
if (local_buf != small_buf) {
kfree(local_buf);
@ -237,7 +234,7 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
} /* while */
end:
*pos = next_pos;
ctx->pos = next_pos;
pathrelse(&path_to_entry);
reiserfs_check_path(&path_to_entry);
out:
@ -245,10 +242,9 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
return ret;
}
static int reiserfs_readdir(struct file *file, void *dirent, filldir_t filldir)
static int reiserfs_readdir(struct file *file, struct dir_context *ctx)
{
struct dentry *dentry = file->f_path.dentry;
return reiserfs_readdir_dentry(dentry, dirent, filldir, &file->f_pos);
return reiserfs_readdir_dentry(file->f_path.dentry, ctx);
}
/* compose directory item containing "." and ".." entries (entries are

2
fs/reiserfs/reiserfs.h
View File

@ -2709,7 +2709,7 @@ extern const struct inode_operations reiserfs_dir_inode_operations;
extern const struct inode_operations reiserfs_symlink_inode_operations;
extern const struct inode_operations reiserfs_special_inode_operations;
extern const struct file_operations reiserfs_dir_operations;
int reiserfs_readdir_dentry(struct dentry *, void *, filldir_t, loff_t *);
int reiserfs_readdir_dentry(struct dentry *, struct dir_context *);
/* tail_conversion.c */
int direct2indirect(struct reiserfs_transaction_handle *, struct inode *,

14
fs/reiserfs/xattr.c
View File

@ -171,6 +171,7 @@ static struct dentry *open_xa_dir(const struct inode *inode, int flags)
* modifying extended attributes. This includes operations such as permissions
* or ownership changes, object deletions, etc. */
struct reiserfs_dentry_buf {
struct dir_context ctx;
struct dentry *xadir;
int count;
struct dentry *dentries[8];
@ -223,9 +224,8 @@ static int reiserfs_for_each_xattr(struct inode *inode,
{
struct dentry *dir;
int i, err = 0;
loff_t pos = 0;
struct reiserfs_dentry_buf buf = {
.count = 0,
.ctx.actor = fill_with_dentries,
};
/* Skip out, an xattr has no xattrs associated with it */
@ -249,7 +249,7 @@ static int reiserfs_for_each_xattr(struct inode *inode,
reiserfs_write_lock(inode->i_sb);
buf.xadir = dir;
err = reiserfs_readdir_dentry(dir, &buf, fill_with_dentries, &pos);
err = reiserfs_readdir_dentry(dir, &buf.ctx);
while ((err == 0 || err == -ENOSPC) && buf.count) {
err = 0;
@ -266,8 +266,7 @@ static int reiserfs_for_each_xattr(struct inode *inode,
}
buf.count = 0;
if (!err)
err = reiserfs_readdir_dentry(dir, &buf,
fill_with_dentries, &pos);
err = reiserfs_readdir_dentry(dir, &buf.ctx);
}
mutex_unlock(&dir->d_inode->i_mutex);
@ -800,6 +799,7 @@ int reiserfs_removexattr(struct dentry *dentry, const char *name)
}
struct listxattr_buf {
struct dir_context ctx;
size_t size;
size_t pos;
char *buf;
@ -845,8 +845,8 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
{
struct dentry *dir;
int err = 0;
loff_t pos = 0;
struct listxattr_buf buf = {
.ctx.actor = listxattr_filler,
.dentry = dentry,
.buf = buffer,
.size = buffer ? size : 0,
@ -868,7 +868,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
}
mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_XATTR);
err = reiserfs_readdir_dentry(dir, &buf, listxattr_filler, &pos);
err = reiserfs_readdir_dentry(dir, &buf.ctx);
mutex_unlock(&dir->d_inode->i_mutex);
if (!err)