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Commit b462707e authored by Dmitry Monakhov's avatar Dmitry Monakhov Committed by Jan Kara
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Add unlocked version of inode_add_bytes() function 



Quota code requires unlocked version of this function. Off course
we can just copy-paste the code, but copy-pasting is always an evil.

Signed-off-by: default avatarDmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent c459001f

fs/stat.c

+8 −2
Original line number Diff line number Diff line
@@ -401,9 +401,9 @@ SYSCALL_DEFINE4(fstatat64, int, dfd, char __user *, filename, 
}

#endif /* __ARCH_WANT_STAT64 */



void inode_add_bytes(struct inode *inode, loff_t bytes)

/* Caller is here responsible for sufficient locking (ie. inode->i_lock) */

void __inode_add_bytes(struct inode *inode, loff_t bytes)

{

	spin_lock(&inode->i_lock);

	inode->i_blocks += bytes >> 9;

	bytes &= 511;

	inode->i_bytes += bytes;
@@ -411,6 +411,12 @@ void inode_add_bytes(struct inode *inode, loff_t bytes) 
		inode->i_blocks++;

		inode->i_bytes -= 512;

	}

}



void inode_add_bytes(struct inode *inode, loff_t bytes)

{

	spin_lock(&inode->i_lock);

	__inode_add_bytes(inode, bytes);

	spin_unlock(&inode->i_lock);

}

include/linux/fs.h

+1 −0
Original line number Diff line number Diff line
@@ -2297,6 +2297,7 @@ extern const struct inode_operations page_symlink_inode_operations; 
extern int generic_readlink(struct dentry *, char __user *, int);

extern void generic_fillattr(struct inode *, struct kstat *);

extern int vfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);

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);

loff_t inode_get_bytes(struct inode *inode);