Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 1305edad authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Linus Torvalds
Browse files

fat: new export ops 



Very little changes here, fat had a mostly no op decode_fh before and does not
store any parent information.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Cc: Neil Brown <neilb@suse.de>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c38344fe

fs/fat/inode.c

+7 −17
Original line number Diff line number Diff line
@@ -653,24 +653,15 @@ static const struct super_operations fat_sops = { 
 * of i_logstart is used to store the directory entry offset.

 */



static struct dentry *

fat_decode_fh(struct super_block *sb, __u32 *fh, int len, int fhtype,

	      int (*acceptable)(void *context, struct dentry *de),

	      void *context)

{

	if (fhtype != 3)

		return ERR_PTR(-ESTALE);

	if (len < 5)

		return ERR_PTR(-ESTALE);



	return sb->s_export_op->find_exported_dentry(sb, fh, NULL, acceptable, context);

}



static struct dentry *fat_get_dentry(struct super_block *sb, void *inump)

static struct dentry *fat_fh_to_dentry(struct super_block *sb,

		struct fid *fid, int fh_len, int fh_type)

{

	struct inode *inode = NULL;

	struct dentry *result;

	__u32 *fh = inump;

	u32 *fh = fid->raw;



	if (fh_len < 5 || fh_type != 3)

		return NULL;



	inode = iget(sb, fh[0]);

	if (!inode || is_bad_inode(inode) || inode->i_generation != fh[1]) {
@@ -784,9 +775,8 @@ static struct dentry *fat_get_parent(struct dentry *child) 
}



static struct export_operations fat_export_ops = {

	.decode_fh	= fat_decode_fh,

	.encode_fh	= fat_encode_fh,

	.get_dentry	= fat_get_dentry,

	.fh_to_dentry	= fat_fh_to_dentry,

	.get_parent	= fat_get_parent,

};