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bcachefs: setting bcachefs_effective.* xattrs is a noop

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bcachefs_effective.* xattrs show the options inherited from parent
directories (as well as explicitly set); this namespace is not for
setting bcachefs options.

Change the .set() handler to a noop so that if e.g. rsync is copying
xattrs it'll do the right thing, and only copy xattrs in the bcachefs.*
namespace. We don't want to return an error, because that will cause
rsync to bail out or get spammy.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-08-18 13:24:26 -04:00
parent 8cc0e50614
commit 548e7f5167
1 changed files with 11 additions and 1 deletions
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12
fs/bcachefs/xattr.c
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@ -612,10 +612,20 @@ static int bch2_xattr_bcachefs_get_effective(
name, buffer, size, true);
}
/* Noop - xattrs in the bcachefs_effective namespace are inherited */
static int bch2_xattr_bcachefs_set_effective(const struct xattr_handler *handler,
struct mnt_idmap *idmap,
struct dentry *dentry, struct inode *vinode,
const char *name, const void *value,
size_t size, int flags)
{
return 0;
}
static const struct xattr_handler bch_xattr_bcachefs_effective_handler = {
.prefix = "bcachefs_effective.",
.get = bch2_xattr_bcachefs_get_effective,
.set = bch2_xattr_bcachefs_set,
.set = bch2_xattr_bcachefs_set_effective,
};
#endif /* NO_BCACHEFS_FS */