From: Ira Weiny ira.weiny@intel.com
The kmap() calls in this FS are localized to a single thread. To avoid the over head of global PKRS updates use the new kmap_thread() call.
Cc: Herbert Xu herbert@gondor.apana.org.au Cc: Eric Biggers ebiggers@google.com Cc: Aditya Pakki pakki001@umn.edu Signed-off-by: Ira Weiny ira.weiny@intel.com --- fs/ecryptfs/crypto.c | 8 ++++---- fs/ecryptfs/read_write.c | 8 ++++---- 2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index 0681540c48d9..e73e00994bee 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -469,10 +469,10 @@ int ecryptfs_encrypt_page(struct page *page) }
lower_offset = lower_offset_for_page(crypt_stat, page); - enc_extent_virt = kmap(enc_extent_page); + enc_extent_virt = kmap_thread(enc_extent_page); rc = ecryptfs_write_lower(ecryptfs_inode, enc_extent_virt, lower_offset, PAGE_SIZE); - kunmap(enc_extent_page); + kunmap_thread(enc_extent_page); if (rc < 0) { ecryptfs_printk(KERN_ERR, "Error attempting to write lower page; rc = [%d]\n", @@ -518,10 +518,10 @@ int ecryptfs_decrypt_page(struct page *page) BUG_ON(!(crypt_stat->flags & ECRYPTFS_ENCRYPTED));
lower_offset = lower_offset_for_page(crypt_stat, page); - page_virt = kmap(page); + page_virt = kmap_thread(page); rc = ecryptfs_read_lower(page_virt, lower_offset, PAGE_SIZE, ecryptfs_inode); - kunmap(page); + kunmap_thread(page); if (rc < 0) { ecryptfs_printk(KERN_ERR, "Error attempting to read lower page; rc = [%d]\n", diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c index 0438997ac9d8..5eca4330c0c0 100644 --- a/fs/ecryptfs/read_write.c +++ b/fs/ecryptfs/read_write.c @@ -64,11 +64,11 @@ int ecryptfs_write_lower_page_segment(struct inode *ecryptfs_inode,
offset = ((((loff_t)page_for_lower->index) << PAGE_SHIFT) + offset_in_page); - virt = kmap(page_for_lower); + virt = kmap_thread(page_for_lower); rc = ecryptfs_write_lower(ecryptfs_inode, virt, offset, size); if (rc > 0) rc = 0; - kunmap(page_for_lower); + kunmap_thread(page_for_lower); return rc; }
@@ -251,11 +251,11 @@ int ecryptfs_read_lower_page_segment(struct page *page_for_ecryptfs, int rc;
offset = ((((loff_t)page_index) << PAGE_SHIFT) + offset_in_page); - virt = kmap(page_for_ecryptfs); + virt = kmap_thread(page_for_ecryptfs); rc = ecryptfs_read_lower(virt, offset, size, ecryptfs_inode); if (rc > 0) rc = 0; - kunmap(page_for_ecryptfs); + kunmap_thread(page_for_ecryptfs); flush_dcache_page(page_for_ecryptfs); return rc; }