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-rw-r--r--fs/stat.c10
-rw-r--r--include/linux/fs.h1
2 files changed, 9 insertions, 2 deletions
diff --git a/fs/stat.c b/fs/stat.c
index 075694e31d8b..c4ecd52c5737 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -401,9 +401,9 @@ SYSCALL_DEFINE4(fstatat64, int, dfd, char __user *, filename,
401} 401}
402#endif /* __ARCH_WANT_STAT64 */ 402#endif /* __ARCH_WANT_STAT64 */
403 403
404void inode_add_bytes(struct inode *inode, loff_t bytes) 404/* Caller is here responsible for sufficient locking (ie. inode->i_lock) */
405void __inode_add_bytes(struct inode *inode, loff_t bytes)
405{ 406{
406 spin_lock(&inode->i_lock);
407 inode->i_blocks += bytes >> 9; 407 inode->i_blocks += bytes >> 9;
408 bytes &= 511; 408 bytes &= 511;
409 inode->i_bytes += bytes; 409 inode->i_bytes += bytes;
@@ -411,6 +411,12 @@ void inode_add_bytes(struct inode *inode, loff_t bytes)
411 inode->i_blocks++; 411 inode->i_blocks++;
412 inode->i_bytes -= 512; 412 inode->i_bytes -= 512;
413 } 413 }
414}
415
416void inode_add_bytes(struct inode *inode, loff_t bytes)
417{
418 spin_lock(&inode->i_lock);
419 __inode_add_bytes(inode, bytes);
414 spin_unlock(&inode->i_lock); 420 spin_unlock(&inode->i_lock);
415} 421}
416 422
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7e3012e0ac06..9147ca88f253 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2297,6 +2297,7 @@ extern const struct inode_operations page_symlink_inode_operations;
2297extern int generic_readlink(struct dentry *, char __user *, int); 2297extern int generic_readlink(struct dentry *, char __user *, int);
2298extern void generic_fillattr(struct inode *, struct kstat *); 2298extern void generic_fillattr(struct inode *, struct kstat *);
2299extern int vfs_getattr(struct vfsmount *, struct dentry *, struct kstat *); 2299extern int vfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
2300void __inode_add_bytes(struct inode *inode, loff_t bytes);
2300void inode_add_bytes(struct inode *inode, loff_t bytes); 2301void inode_add_bytes(struct inode *inode, loff_t bytes);
2301void inode_sub_bytes(struct inode *inode, loff_t bytes); 2302void inode_sub_bytes(struct inode *inode, loff_t bytes);
2302loff_t inode_get_bytes(struct inode *inode); 2303loff_t inode_get_bytes(struct inode *inode);