docs: Correct missing "d_" prefix for dentry_operations member d_weak_revalidate

stable inclusion
from stable-v5.10.176
commit 79fe786dab5c10b1d5cb40aa3b4cdcc4489626ad
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8CHVQ

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=79fe786dab5c10b1d5cb40aa3b4cdcc4489626ad



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[ Upstream commit 74596085 ]

The details for struct dentry_operations member d_weak_revalidate is
missing a "d_" prefix.

Fixes: af96c1e3 ("docs: filesystems: vfs: Convert vfs.txt to RST")
Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Link: https://lore.kernel.org/r/20230227184042.2375235-1-development@efficientek.com


Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>