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| author | Christian Brauner <christian.brauner@ubuntu.com> | 2021-01-21 14:19:43 +0100 |
|---|---|---|
| committer | Christian Brauner <christian.brauner@ubuntu.com> | 2021-01-24 14:27:20 +0100 |
| commit | 549c7297717c32ee53f156cd949e055e601f67bb (patch) | |
| tree | d096bc02f780bdee69a701952d5568f4be9972c1 /fs/reiserfs/namei.c | |
| parent | exec: handle idmapped mounts (diff) | |
| download | linux-549c7297717c32ee53f156cd949e055e601f67bb.tar.xz linux-549c7297717c32ee53f156cd949e055e601f67bb.zip | |
fs: make helpers idmap mount aware
Extend some inode methods with an additional user namespace argument. A
filesystem that is aware of idmapped mounts will receive the user
namespace the mount has been marked with. This can be used for
additional permission checking and also to enable filesystems to
translate between uids and gids if they need to. We have implemented all
relevant helpers in earlier patches.
As requested we simply extend the exisiting inode method instead of
introducing new ones. This is a little more code churn but it's mostly
mechanical and doesnt't leave us with additional inode methods.
Link: https://lore.kernel.org/r/20210121131959.646623-25-christian.brauner@ubuntu.com
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'fs/reiserfs/namei.c')
| -rw-r--r-- | fs/reiserfs/namei.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c index a67a7d371725..e6eb05e2b2f1 100644 --- a/fs/reiserfs/namei.c +++ b/fs/reiserfs/namei.c @@ -619,8 +619,8 @@ static int new_inode_init(struct inode *inode, struct inode *dir, umode_t mode) return dquot_initialize(inode); } -static int reiserfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, - bool excl) +static int reiserfs_create(struct user_namespace *mnt_userns, struct inode *dir, + struct dentry *dentry, umode_t mode, bool excl) { int retval; struct inode *inode; @@ -698,8 +698,8 @@ out_failed: return retval; } -static int reiserfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, - dev_t rdev) +static int reiserfs_mknod(struct user_namespace *mnt_userns, struct inode *dir, + struct dentry *dentry, umode_t mode, dev_t rdev) { int retval; struct inode *inode; @@ -781,7 +781,8 @@ out_failed: return retval; } -static int reiserfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) +static int reiserfs_mkdir(struct user_namespace *mnt_userns, struct inode *dir, + struct dentry *dentry, umode_t mode) { int retval; struct inode *inode; @@ -1094,8 +1095,9 @@ out_unlink: return retval; } -static int reiserfs_symlink(struct inode *parent_dir, - struct dentry *dentry, const char *symname) +static int reiserfs_symlink(struct user_namespace *mnt_userns, + struct inode *parent_dir, struct dentry *dentry, + const char *symname) { int retval; struct inode *inode; @@ -1304,7 +1306,8 @@ static void set_ino_in_dir_entry(struct reiserfs_dir_entry *de, * one path. If it holds 2 or more, it can get into endless waiting in * get_empty_nodes or its clones */ -static int reiserfs_rename(struct inode *old_dir, struct dentry *old_dentry, +static int reiserfs_rename(struct user_namespace *mnt_userns, + struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry, unsigned int flags) { |