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libfs: allow to specify s_d_flags 

Make it possible for pseudo filesystems to specify default dentry flags.

Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-1-2e6f823ebdc0@kernel.org
Tested-by: syzbot@syzkaller.appspotmail.com
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2025-10-29 13:20:14 +01:00
parent 211ddde082
commit c9822fad80
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2 changed files with 2 additions and 0 deletions
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1
fs/libfs.c
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@ -680,6 +680,7 @@ static int pseudo_fs_fill_super(struct super_block *s, struct fs_context *fc)
s->s_export_op = ctx->eops;
s->s_xattr = ctx->xattr;
s->s_time_gran = 1;
s->s_d_flags |= ctx->s_d_flags;
root = new_inode(s);
if (!root)
return -ENOMEM;

1
include/linux/pseudo_fs.h
View File

@ -9,6 +9,7 @@ struct pseudo_fs_context {
const struct xattr_handler * const *xattr;
const struct dentry_operations *dops;
unsigned long magic;
unsigned int s_d_flags;
};
struct pseudo_fs_context *init_pseudo(struct fs_context *fc,