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Linux 6.15: mkdir now returns struct dentry *

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The intent is that the filesystem may have a reference to an "old"
version of the new directory, eg if it was keeping it alive because a
remote NFS client still had it open.

We don't need anything like that, so this really just changes things so
we return error codes encoded in pointers.

Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Pavel Snajdr <snajpa@snajpa.net>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #17229
This commit is contained in:
Rob Norris
2025-04-04 16:59:15 +11:00
committed by Brian Behlendorf
parent d8a33bc0a5
commit bb740d66de
3 changed files with 70 additions and 20 deletions
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module/os/linux/zfs/zpl_ctldir.c
+11 -1
View File
@@ -341,14 +341,20 @@ zpl_snapdir_rmdir(struct inode *dip, struct dentry *dentry)
return (error);
}
#if defined(HAVE_IOPS_MKDIR_USERNS)
static int
#ifdef HAVE_IOPS_MKDIR_USERNS
zpl_snapdir_mkdir(struct user_namespace *user_ns, struct inode *dip,
struct dentry *dentry, umode_t mode)
#elif defined(HAVE_IOPS_MKDIR_IDMAP)
static int
zpl_snapdir_mkdir(struct mnt_idmap *user_ns, struct inode *dip,
struct dentry *dentry, umode_t mode)
#elif defined(HAVE_IOPS_MKDIR_DENTRY)
static struct dentry *
zpl_snapdir_mkdir(struct mnt_idmap *user_ns, struct inode *dip,
struct dentry *dentry, umode_t mode)
#else
static int
zpl_snapdir_mkdir(struct inode *dip, struct dentry *dentry, umode_t mode)
#endif
{
@@ -376,7 +382,11 @@ zpl_snapdir_mkdir(struct inode *dip, struct dentry *dentry, umode_t mode)
ASSERT3S(error, <=, 0);
crfree(cr);
#if defined(HAVE_IOPS_MKDIR_DENTRY)
return (ERR_PTR(error));
#else
return (error);
#endif
}
/*