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Commit f4a8116a authored by Jan Kara's avatar Jan Kara
Browse files

fs: Provide __inode_get_bytes() 



Provide helper __inode_get_bytes() which assumes i_lock is already
acquired. Quota code will need this to be able to use i_lock to protect
consistency of quota accounting information and inode usage.

Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 3ab167d2

fs/stat.c

+1 −1
Original line number Diff line number Diff line
@@ -710,7 +710,7 @@ loff_t inode_get_bytes(struct inode *inode) 
	loff_t ret;



	spin_lock(&inode->i_lock);

	ret = (((loff_t)inode->i_blocks) << 9) + inode->i_bytes;

	ret = __inode_get_bytes(inode);

	spin_unlock(&inode->i_lock);

	return ret;

}

include/linux/fs.h

+4 −0
Original line number Diff line number Diff line
@@ -2998,6 +2998,10 @@ void __inode_add_bytes(struct inode *inode, loff_t bytes); 
void inode_add_bytes(struct inode *inode, loff_t bytes);

void __inode_sub_bytes(struct inode *inode, loff_t bytes);

void inode_sub_bytes(struct inode *inode, loff_t bytes);

static inline loff_t __inode_get_bytes(struct inode *inode)

{

	return (((loff_t)inode->i_blocks) << 9) + inode->i_bytes;

}

loff_t inode_get_bytes(struct inode *inode);

void inode_set_bytes(struct inode *inode, loff_t bytes);

const char *simple_get_link(struct dentry *, struct inode *,