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| author | Miklos Szeredi <mszeredi@redhat.com> | 2016-06-30 08:53:27 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2016-06-30 08:53:27 +0200 |
| commit | 2d902671ce1cd98cdc88d78c481889a1b2996101 (patch) | |
| tree | 48c4bc8f90ee3209b7fba9b70169e8528b781eaa /fs/namei.c | |
| parent | 4c2e07c6a29e0129e975727b9f57eede813eea85 (diff) | |
| download | lwn-2d902671ce1cd98cdc88d78c481889a1b2996101.tar.gz lwn-2d902671ce1cd98cdc88d78c481889a1b2996101.zip | |
vfs: merge .d_select_inode() into .d_real()
The two methods essentially do the same: find the real dentry/inode
belonging to an overlay dentry. The difference is in the usage:
vfs_open() uses ->d_select_inode() and expects the function to perform
copy-up if necessary based on the open flags argument.
file_dentry() uses ->d_real() passing in the overlay dentry as well as the
underlying inode.
vfs_rename() uses ->d_select_inode() but passes zero flags. ->d_real()
with a zero inode would have worked just as well here.
This patch merges the functionality of ->d_select_inode() into ->d_real()
by adding an 'open_flags' argument to the latter.
[Al Viro] Make the signature of d_real() match that of ->d_real() again.
And constify the inode argument, while we are at it.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/namei.c b/fs/namei.c index 70580ab1445c..bb7a2e0b959c 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -4328,7 +4328,7 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry, * Check source == target. * On overlayfs need to look at underlying inodes. */ - if (vfs_select_inode(old_dentry, 0) == vfs_select_inode(new_dentry, 0)) + if (d_real_inode(old_dentry) == d_real_inode(new_dentry)) return 0; error = may_delete(old_dir, old_dentry, is_dir); |