Commit a15f1e41 authored by Johannes Berg's avatar Johannes Berg Committed by Richard Weinberger
Browse files

um: hostfs: use a kmem cache for inodes 



This collects all of them together and makes it possible to
e.g. exclude it from slub debugging.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarRichard Weinberger <richard@nod.at>
parent 731ecea3

fs/hostfs/hostfs_kern.c

+8 −2
Original line number Diff line number Diff line
@@ -34,6 +34,8 @@ static inline struct hostfs_inode_info *HOSTFS_I(struct inode *inode) 


#define FILE_HOSTFS_I(file) HOSTFS_I(file_inode(file))



static struct kmem_cache *hostfs_inode_cache;



/* Changed in hostfs_args before the kernel starts running */

static char *root_ino = "";

static int append = 0;
@@ -221,7 +223,7 @@ static struct inode *hostfs_alloc_inode(struct super_block *sb) 
{

	struct hostfs_inode_info *hi;



	hi = kmalloc(sizeof(*hi), GFP_KERNEL_ACCOUNT);

	hi = kmem_cache_alloc(hostfs_inode_cache, GFP_KERNEL_ACCOUNT);

	if (hi == NULL)

		return NULL;

	hi->fd = -1;
@@ -243,7 +245,7 @@ static void hostfs_evict_inode(struct inode *inode) 


static void hostfs_free_inode(struct inode *inode)

{

	kfree(HOSTFS_I(inode));

	kmem_cache_free(hostfs_inode_cache, HOSTFS_I(inode));

}



static int hostfs_show_options(struct seq_file *seq, struct dentry *root)
@@ -986,12 +988,16 @@ MODULE_ALIAS_FS("hostfs"); 


static int __init init_hostfs(void)

{

	hostfs_inode_cache = KMEM_CACHE(hostfs_inode_info, 0);

	if (!hostfs_inode_cache)

		return -ENOMEM;

	return register_filesystem(&hostfs_type);

}



static void __exit exit_hostfs(void)

{

	unregister_filesystem(&hostfs_type);

	kmem_cache_destroy(hostfs_inode_cache);

}



module_init(init_hostfs)