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[PATCH] eCryptfs: convert kmap() to kmap_atomic()

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Replace kmap() with kmap_atomic().  Reduce the amount of time that mappings
are held.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Trevor Highland <tshighla@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Michael Halcrow
2007-02-12 00:53:48 -08:00
committed by Linus Torvalds
parent 70456600f4
commit 9d8b8ce556
3 changed files with 39 additions and 94 deletions
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8
fs/ecryptfs/crypto.c
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@@ -429,10 +429,10 @@ static int ecryptfs_read_in_page(struct ecryptfs_page_crypt_context *ctx,
goto out;
}
} else {
rc = ecryptfs_grab_and_map_lower_page(lower_page, NULL,
lower_inode,
lower_page_idx);
if (rc) {
*lower_page = grab_cache_page(lower_inode->i_mapping,
lower_page_idx);
if (!(*lower_page)) {
rc = -EINVAL;
ecryptfs_printk(
KERN_ERR, "Error attempting to grab and map "
"lower page with index [0x%.16x]; rc = [%d]\n",