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authorNick Piggin <npiggin@suse.de>2007-10-16 01:25:26 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:42:58 -0700
commit55144768e100b68447f44c5e5c9deb155ad661bd (patch)
tree9889682ee3b64627ad9eb504f30672fad844752f /fs/ecryptfs/mmap.c
parent03158cd7eb3374843de68421142ca5900df845d9 (diff)
downloadlinux-55144768e100b68447f44c5e5c9deb155ad661bd.tar.bz2
fs: remove some AOP_TRUNCATED_PAGE
prepare/commit_write no longer returns AOP_TRUNCATED_PAGE since OCFS2 and GFS2 were converted to the new aops, so we can make some simplifications for that. [michal.k.k.piotrowski@gmail.com: fix warning] Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ecryptfs/mmap.c')
-rw-r--r--fs/ecryptfs/mmap.c40
1 files changed, 10 insertions, 30 deletions
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index fd3f94d4a668..aaea55a61ea1 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -446,11 +446,9 @@ out:
return rc;
}
-static
-void ecryptfs_release_lower_page(struct page *lower_page, int page_locked)
+static void ecryptfs_release_lower_page(struct page *lower_page)
{
- if (page_locked)
- unlock_page(lower_page);
+ unlock_page(lower_page);
page_cache_release(lower_page);
}
@@ -471,7 +469,6 @@ static int ecryptfs_write_inode_size_to_header(struct file *lower_file,
const struct address_space_operations *lower_a_ops;
u64 file_size;
-retry:
header_page = grab_cache_page(lower_inode->i_mapping, 0);
if (!header_page) {
ecryptfs_printk(KERN_ERR, "grab_cache_page for "
@@ -482,11 +479,7 @@ retry:
lower_a_ops = lower_inode->i_mapping->a_ops;
rc = lower_a_ops->prepare_write(lower_file, header_page, 0, 8);
if (rc) {
- if (rc == AOP_TRUNCATED_PAGE) {
- ecryptfs_release_lower_page(header_page, 0);
- goto retry;
- } else
- ecryptfs_release_lower_page(header_page, 1);
+ ecryptfs_release_lower_page(header_page);
goto out;
}
file_size = (u64)i_size_read(inode);
@@ -500,11 +493,7 @@ retry:
if (rc < 0)
ecryptfs_printk(KERN_ERR, "Error commiting header page "
"write\n");
- if (rc == AOP_TRUNCATED_PAGE) {
- ecryptfs_release_lower_page(header_page, 0);
- goto retry;
- } else
- ecryptfs_release_lower_page(header_page, 1);
+ ecryptfs_release_lower_page(header_page);
lower_inode->i_mtime = lower_inode->i_ctime = CURRENT_TIME;
mark_inode_dirty_sync(inode);
out:
@@ -593,7 +582,6 @@ int ecryptfs_get_lower_page(struct page **lower_page, struct inode *lower_inode,
{
int rc = 0;
-retry:
*lower_page = grab_cache_page(lower_inode->i_mapping, lower_page_index);
if (!(*lower_page)) {
rc = -EINVAL;
@@ -607,16 +595,11 @@ retry:
byte_offset,
region_bytes);
if (rc) {
- if (rc == AOP_TRUNCATED_PAGE) {
- ecryptfs_release_lower_page(*lower_page, 0);
- goto retry;
- } else {
- ecryptfs_printk(KERN_ERR, "prepare_write for "
- "lower_page_index = [0x%.16x] failed; rc = "
- "[%d]\n", lower_page_index, rc);
- ecryptfs_release_lower_page(*lower_page, 1);
- (*lower_page) = NULL;
- }
+ ecryptfs_printk(KERN_ERR, "prepare_write for "
+ "lower_page_index = [0x%.16x] failed; rc = "
+ "[%d]\n", lower_page_index, rc);
+ ecryptfs_release_lower_page(*lower_page);
+ (*lower_page) = NULL;
}
out:
return rc;
@@ -632,19 +615,16 @@ ecryptfs_commit_lower_page(struct page *lower_page, struct inode *lower_inode,
struct file *lower_file, int byte_offset,
int region_size)
{
- int page_locked = 1;
int rc = 0;
rc = lower_inode->i_mapping->a_ops->commit_write(
lower_file, lower_page, byte_offset, region_size);
- if (rc == AOP_TRUNCATED_PAGE)
- page_locked = 0;
if (rc < 0) {
ecryptfs_printk(KERN_ERR,
"Error committing write; rc = [%d]\n", rc);
} else
rc = 0;
- ecryptfs_release_lower_page(lower_page, page_locked);
+ ecryptfs_release_lower_page(lower_page);
return rc;
}