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authorTheodore Ts'o <tytso@mit.edu>2015-05-31 13:31:34 -0400
committerTheodore Ts'o <tytso@mit.edu>2015-05-31 13:31:34 -0400
commit614def7013574ffcd54019b6df40ac1c0df754af (patch)
tree50549389b403fac7179bc6f93ecb178091ad4c31 /fs/ext4/page-io.c
parent1aaa6e8b24114757a836ae0e62d2096deb76f274 (diff)
downloadlinux-614def7013574ffcd54019b6df40ac1c0df754af.tar.bz2
ext4 crypto: shrink size of the ext4_crypto_ctx structure
Some fields are only used when the crypto_ctx is being used on the read path, some are only used on the write path, and some are only used when the structure is on free list. Optimize memory use by using a union. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/page-io.c')
-rw-r--r--fs/ext4/page-io.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 5765f88b3904..79636e21d3a2 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -84,7 +84,7 @@ static void ext4_finish_bio(struct bio *bio)
/* The bounce data pages are unmapped. */
data_page = page;
ctx = (struct ext4_crypto_ctx *)page_private(data_page);
- page = ctx->control_page;
+ page = ctx->w.control_page;
}
#endif