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Commit ee416bcd authored by David Howells's avatar David Howells Committed by Al Viro
Browse files

VFS: Make get_filesystem() return the affected filesystem 



Make get_filesystem() return a pointer to the filesystem on which it just
got a ref.

Suggested-by: default avatarRasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent dd111b31

fs/filesystems.c

+2 −1
Original line number Diff line number Diff line
@@ -33,9 +33,10 @@ static struct file_system_type *file_systems; 
static DEFINE_RWLOCK(file_systems_lock);



/* WARNING: This can be used only if we _already_ own a reference */

void get_filesystem(struct file_system_type *fs)

struct file_system_type *get_filesystem(struct file_system_type *fs)

{

	__module_get(fs->owner);

	return fs;

}



void put_filesystem(struct file_system_type *fs)

include/linux/fs.h

+1 −1
Original line number Diff line number Diff line
@@ -2956,7 +2956,7 @@ extern int generic_block_fiemap(struct inode *inode, 
				struct fiemap_extent_info *fieinfo, u64 start,

				u64 len, get_block_t *get_block);



extern void get_filesystem(struct file_system_type *fs);

extern struct file_system_type *get_filesystem(struct file_system_type *fs);

extern void put_filesystem(struct file_system_type *fs);

extern struct file_system_type *get_fs_type(const char *name);

extern struct super_block *get_super(struct block_device *);