summaryrefslogtreecommitdiff
path: root/fs/ext2/inode.c
diff options
context:
space:
mode:
authorCarsten Otte <cotte@de.ibm.com>2005-06-23 22:05:26 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-24 00:06:41 -0700
commit6d79125bba55ee82701f1c7d4ebbc1aa20ecbe4e (patch)
treefbd7f82fea19fd89e09312fe89919774b94a6efe /fs/ext2/inode.c
parentceffc078528befc008c6f2c2c4decda79eabd534 (diff)
[PATCH] xip: ext2: execute in place
These are the ext2 related parts. Ext2 now uses the xip_* file operations along with the get_xip_page aop when mounted with -o xip. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/ext2/inode.c')
-rw-r--r--fs/ext2/inode.c31
1 files changed, 27 insertions, 4 deletions
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index a50d9db4b6e4..53dceb0c6593 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -33,6 +33,7 @@
#include <linux/mpage.h>
#include "ext2.h"
#include "acl.h"
+#include "xip.h"
MODULE_AUTHOR("Remy Card and others");
MODULE_DESCRIPTION("Second Extended Filesystem");
@@ -594,6 +595,16 @@ out:
if (err)
goto cleanup;
+ if (ext2_use_xip(inode->i_sb)) {
+ /*
+ * we need to clear the block
+ */
+ err = ext2_clear_xip_target (inode,
+ le32_to_cpu(chain[depth-1].key));
+ if (err)
+ goto cleanup;
+ }
+
if (ext2_splice_branch(inode, iblock, chain, partial, left) < 0)
goto changed;
@@ -691,6 +702,11 @@ struct address_space_operations ext2_aops = {
.writepages = ext2_writepages,
};
+struct address_space_operations ext2_aops_xip = {
+ .bmap = ext2_bmap,
+ .get_xip_page = ext2_get_xip_page,
+};
+
struct address_space_operations ext2_nobh_aops = {
.readpage = ext2_readpage,
.readpages = ext2_readpages,
@@ -910,7 +926,9 @@ void ext2_truncate (struct inode * inode)
iblock = (inode->i_size + blocksize-1)
>> EXT2_BLOCK_SIZE_BITS(inode->i_sb);
- if (test_opt(inode->i_sb, NOBH))
+ if (mapping_is_xip(inode->i_mapping))
+ xip_truncate_page(inode->i_mapping, inode->i_size);
+ else if (test_opt(inode->i_sb, NOBH))
nobh_truncate_page(inode->i_mapping, inode->i_size);
else
block_truncate_page(inode->i_mapping,
@@ -1110,11 +1128,16 @@ void ext2_read_inode (struct inode * inode)
if (S_ISREG(inode->i_mode)) {
inode->i_op = &ext2_file_inode_operations;
- inode->i_fop = &ext2_file_operations;
- if (test_opt(inode->i_sb, NOBH))
+ if (ext2_use_xip(inode->i_sb)) {
+ inode->i_mapping->a_ops = &ext2_aops_xip;
+ inode->i_fop = &ext2_xip_file_operations;
+ } else if (test_opt(inode->i_sb, NOBH)) {
inode->i_mapping->a_ops = &ext2_nobh_aops;
- else
+ inode->i_fop = &ext2_file_operations;
+ } else {
inode->i_mapping->a_ops = &ext2_aops;
+ inode->i_fop = &ext2_file_operations;
+ }
} else if (S_ISDIR(inode->i_mode)) {
inode->i_op = &ext2_dir_inode_operations;
inode->i_fop = &ext2_dir_operations;