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wrappers for ->i_mutex access

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parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested},
inode_foo(inode) being mutex_foo(&inode->i_mutex).

Please, use those for access to ->i_mutex; over the coming cycle
->i_mutex will become rwsem, with ->lookup() done with it held
only shared.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2016-01-22 15:40:57 -05:00
parent 57b8f112cf
commit 5955102c99
177 changed files with 908 additions and 883 deletions
Download patch file Download diff file Expand all files Collapse all files

10
fs/libfs.c
View file

@ -89,7 +89,7 @@ EXPORT_SYMBOL(dcache_dir_close);
loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
{
struct dentry *dentry = file->f_path.dentry;
mutex_lock(&d_inode(dentry)->i_mutex);
inode_lock(d_inode(dentry));
switch (whence) {
case 1:
offset += file->f_pos;
@ -97,7 +97,7 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
if (offset >= 0)
break;
default:
mutex_unlock(&d_inode(dentry)->i_mutex);
inode_unlock(d_inode(dentry));
return -EINVAL;
}
if (offset != file->f_pos) {
@ -124,7 +124,7 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
spin_unlock(&dentry->d_lock);
}
}
mutex_unlock(&d_inode(dentry)->i_mutex);
inode_unlock(d_inode(dentry));
return offset;
}
EXPORT_SYMBOL(dcache_dir_lseek);
@ -941,7 +941,7 @@ int __generic_file_fsync(struct file *file, loff_t start, loff_t end,
if (err)
return err;
mutex_lock(&inode->i_mutex);
inode_lock(inode);
ret = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY_ALL))
goto out;
@ -953,7 +953,7 @@ int __generic_file_fsync(struct file *file, loff_t start, loff_t end,
ret = err;
out:
mutex_unlock(&inode->i_mutex);
inode_unlock(inode);
return ret;
}
EXPORT_SYMBOL(__generic_file_fsync);