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| author | Eric Biggers <ebiggers@google.com> | 2023-09-25 08:54:48 +0300 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2023-09-25 09:03:09 +0300 |
| commit | 40e13e18168fd0f1a6ad10166f5042a21c47ab99 (patch) | |
| tree | 507386c59303d22220f4d36d9d727187f965a359 /fs/ext4/crypto.c | |
| parent | 5970fbad1036d1015abe45651628b39b5bcb8a22 (diff) | |
| download | linux-40e13e18168fd0f1a6ad10166f5042a21c47ab99.tar.xz | |
fscrypt: make the bounce page pool opt-in instead of opt-out
Replace FS_CFLG_OWN_PAGES with a bit flag 'needs_bounce_pages' which has
the opposite meaning. I.e., filesystems now opt into the bounce page
pool instead of opt out. Make fscrypt_alloc_bounce_page() check that
the bounce page pool has been initialized.
I believe the opt-in makes more sense, since nothing else in
fscrypt_operations is opt-out, and these days filesystems can choose to
use blk-crypto which doesn't need the fscrypt bounce page pool. Also, I
happen to be planning to add two more flags, and I wanted to fix the
"FS_CFLG_" name anyway as it wasn't prefixed with "FSCRYPT_".
Link: https://lore.kernel.org/r/20230925055451.59499-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Diffstat (limited to 'fs/ext4/crypto.c')
| -rw-r--r-- | fs/ext4/crypto.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c index 99a4769a53f6..5cd7bcfae46b 100644 --- a/fs/ext4/crypto.c +++ b/fs/ext4/crypto.c @@ -240,6 +240,7 @@ static void ext4_get_ino_and_lblk_bits(struct super_block *sb, } const struct fscrypt_operations ext4_cryptops = { + .needs_bounce_pages = 1, .legacy_key_prefix = "ext4:", .get_context = ext4_get_context, .set_context = ext4_set_context, |