Commit 9de16262 authored by Vladimir Davydov's avatar Vladimir Davydov Committed by Linus Torvalds
Browse files

cleancache: zap uuid arg of cleancache_init_shared_fs 



Use super_block->s_uuid instead.  Every shared filesystem using cleancache
must now initialize super_block->s_uuid before calling
cleancache_init_shared_fs.  The only one on the tree, ocfs2, already meets
this requirement.

Signed-off-by: default avatarVladimir Davydov <vdavydov@parallels.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Stefan Hengelein <ilendir@googlemail.com>
Cc: Florian Schmaus <fschmaus@gmail.com>
Cc: Andor Daam <andor.daam@googlemail.com>
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: Bob Liu <lliubbo@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 58be19dc

fs/ocfs2/super.c

+1 −1
Original line number Diff line number Diff line
@@ -2336,7 +2336,7 @@ static int ocfs2_initialize_super(struct super_block *sb, 
		mlog_errno(status);

		goto bail;

	}

	cleancache_init_shared_fs((char *)&di->id2.i_super.s_uuid, sb);

	cleancache_init_shared_fs(sb);



bail:

	return status;

include/linux/cleancache.h

+3 −3
Original line number Diff line number Diff line
@@ -36,7 +36,7 @@ struct cleancache_ops { 
extern struct cleancache_ops *

	cleancache_register_ops(struct cleancache_ops *ops);

extern void __cleancache_init_fs(struct super_block *);

extern void __cleancache_init_shared_fs(char *, struct super_block *);

extern void __cleancache_init_shared_fs(struct super_block *);

extern int  __cleancache_get_page(struct page *);

extern void __cleancache_put_page(struct page *);

extern void __cleancache_invalidate_page(struct address_space *, struct page *);
@@ -78,10 +78,10 @@ static inline void cleancache_init_fs(struct super_block *sb) 
		__cleancache_init_fs(sb);

}



static inline void cleancache_init_shared_fs(char *uuid, struct super_block *sb)

static inline void cleancache_init_shared_fs(struct super_block *sb)

{

	if (cleancache_enabled)

		__cleancache_init_shared_fs(uuid, sb);

		__cleancache_init_shared_fs(sb);

}



static inline int cleancache_get_page(struct page *page)

mm/cleancache.c

+3 −3
Original line number Diff line number Diff line
@@ -155,7 +155,7 @@ void __cleancache_init_fs(struct super_block *sb) 
EXPORT_SYMBOL(__cleancache_init_fs);



/* Called by a cleancache-enabled clustered filesystem at time of mount */

void __cleancache_init_shared_fs(char *uuid, struct super_block *sb)

void __cleancache_init_shared_fs(struct super_block *sb)

{

	int i;
@@ -163,10 +163,10 @@ void __cleancache_init_shared_fs(char *uuid, struct super_block *sb) 
	for (i = 0; i < MAX_INITIALIZABLE_FS; i++) {

		if (shared_fs_poolid_map[i] == FS_UNKNOWN) {

			sb->cleancache_poolid = i + FAKE_SHARED_FS_POOLID_OFFSET;

			uuids[i] = uuid;

			uuids[i] = sb->s_uuid;

			if (cleancache_ops)

				shared_fs_poolid_map[i] = cleancache_ops->init_shared_fs

						(uuid, PAGE_SIZE);

						(sb->s_uuid, PAGE_SIZE);

			else

				shared_fs_poolid_map[i] = FS_NO_BACKEND;

			break;

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