From: Eric Biggers <ebiggers@kernel.org>
To: linux-fscrypt@vger.kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net,
"Theodore Y . Ts'o" <tytso@mit.edu>,
Satya Tangirala <satyat@google.com>,
Paul Lawrence <paullawrence@google.com>,
linux-fsdevel@vger.kernel.org, Jaegeuk Kim <jaegeuk@kernel.org>,
linux-ext4@vger.kernel.org, Paul Crowley <paulcrowley@google.com>
Subject: [f2fs-dev] [PATCH v2 3/3] f2fs: add support for IV_INO_LBLK_64 encryption policies
Date: Thu, 24 Oct 2019 14:54:38 -0700 [thread overview]
Message-ID: <20191024215438.138489-4-ebiggers@kernel.org> (raw)
In-Reply-To: <20191024215438.138489-1-ebiggers@kernel.org>
From: Eric Biggers <ebiggers@google.com>
f2fs inode numbers are stable across filesystem resizing, and f2fs inode
and file logical block numbers are always 32-bit. So f2fs can always
support IV_INO_LBLK_64 encryption policies. Wire up the needed
fscrypt_operations to declare support.
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
fs/f2fs/super.c | 26 ++++++++++++++++++++------
1 file changed, 20 insertions(+), 6 deletions(-)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 1443cee158633..851ac95229263 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -2308,13 +2308,27 @@ static bool f2fs_dummy_context(struct inode *inode)
return DUMMY_ENCRYPTION_ENABLED(F2FS_I_SB(inode));
}
+static bool f2fs_has_stable_inodes(struct super_block *sb)
+{
+ return true;
+}
+
+static void f2fs_get_ino_and_lblk_bits(struct super_block *sb,
+ int *ino_bits_ret, int *lblk_bits_ret)
+{
+ *ino_bits_ret = 8 * sizeof(nid_t);
+ *lblk_bits_ret = 8 * sizeof(block_t);
+}
+
static const struct fscrypt_operations f2fs_cryptops = {
- .key_prefix = "f2fs:",
- .get_context = f2fs_get_context,
- .set_context = f2fs_set_context,
- .dummy_context = f2fs_dummy_context,
- .empty_dir = f2fs_empty_dir,
- .max_namelen = F2FS_NAME_LEN,
+ .key_prefix = "f2fs:",
+ .get_context = f2fs_get_context,
+ .set_context = f2fs_set_context,
+ .dummy_context = f2fs_dummy_context,
+ .empty_dir = f2fs_empty_dir,
+ .max_namelen = F2FS_NAME_LEN,
+ .has_stable_inodes = f2fs_has_stable_inodes,
+ .get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits,
};
#endif
--
2.24.0.rc0.303.g954a862665-goog
_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
next prev parent reply other threads:[~2019-10-24 21:57 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-24 21:54 [f2fs-dev] [PATCH v2 0/3] fscrypt: support for IV_INO_LBLK_64 policies Eric Biggers
2019-10-24 21:54 ` [f2fs-dev] [PATCH v2 1/3] fscrypt: add " Eric Biggers
2019-10-29 17:47 ` Paul Crowley via Linux-f2fs-devel
2019-11-06 3:35 ` Theodore Y. Ts'o
2019-11-06 4:05 ` Eric Biggers
2019-11-07 2:49 ` Theodore Y. Ts'o
2019-10-24 21:54 ` [f2fs-dev] [PATCH v2 2/3] ext4: add support for IV_INO_LBLK_64 encryption policies Eric Biggers
2019-11-06 3:26 ` Theodore Y. Ts'o
2019-10-24 21:54 ` Eric Biggers [this message]
2019-11-01 18:33 ` [f2fs-dev] [PATCH v2 3/3] f2fs: " Jaegeuk Kim
2019-11-01 18:02 ` [f2fs-dev] [PATCH v2 0/3] fscrypt: support for IV_INO_LBLK_64 policies Eric Biggers
2019-11-06 21:04 ` Eric Biggers
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191024215438.138489-4-ebiggers@kernel.org \
--to=ebiggers@kernel.org \
--cc=jaegeuk@kernel.org \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-f2fs-devel@lists.sourceforge.net \
--cc=linux-fscrypt@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=paulcrowley@google.com \
--cc=paullawrence@google.com \
--cc=satyat@google.com \
--cc=tytso@mit.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).