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vfs: make vfs_symlink break delegations on parent dir

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In order to add directory delegation support, we must break delegations
on the parent on any change to the directory.

Add a delegated_inode parameter to vfs_symlink() and have it break the
delegation. do_symlinkat() can then wait on the delegation break before
proceeding.

Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Link: https://patch.msgid.link/20251111-dir-deleg-ro-v6-12-52f3feebb2f2@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Jeff Layton
2025-11-11 09:12:53 -05:00
committed by Christian Brauner
parent e8960c1b2e
commit 92bf53577f
6 changed files with 19 additions and 7 deletions
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2
fs/ecryptfs/inode.c
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@@ -479,7 +479,7 @@ static int ecryptfs_symlink(struct mnt_idmap *idmap,
if (rc)
goto out_lock;
rc = vfs_symlink(&nop_mnt_idmap, lower_dir, lower_dentry,
encoded_symname);
encoded_symname, NULL);
kfree(encoded_symname);
if (rc || d_really_is_negative(lower_dentry))
goto out_lock;