exec: remove unnecessary check for MNT_NOEXEC

[linux-2.6-omap-h63xx.git] / fs / ext2 / inode.c

diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index dd4e14c221e0e07c67c96e2ae06e6c3b755f225e..84818176fd9d58341a2613339f2123404237ff99 100644 (file)
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -642,18 +642,35 @@ ext2_readpages(struct file *file, struct address_space *mapping,
        return mpage_readpages(mapping, pages, nr_pages, ext2_get_block);
 }
 
+int __ext2_write_begin(struct file *file, struct address_space *mapping,
+               loff_t pos, unsigned len, unsigned flags,
+               struct page **pagep, void **fsdata)
+{
+       return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
+                                                       ext2_get_block);
+}
+
 static int
-ext2_prepare_write(struct file *file, struct page *page,
-                       unsigned from, unsigned to)
+ext2_write_begin(struct file *file, struct address_space *mapping,
+               loff_t pos, unsigned len, unsigned flags,
+               struct page **pagep, void **fsdata)
 {
-       return block_prepare_write(page,from,to,ext2_get_block);
+       *pagep = NULL;
+       return __ext2_write_begin(file, mapping, pos, len, flags, pagep,fsdata);
 }
 
 static int
-ext2_nobh_prepare_write(struct file *file, struct page *page,
-                       unsigned from, unsigned to)
+ext2_nobh_write_begin(struct file *file, struct address_space *mapping,
+               loff_t pos, unsigned len, unsigned flags,
+               struct page **pagep, void **fsdata)
 {
-       return nobh_prepare_write(page,from,to,ext2_get_block);
+       /*
+        * Dir-in-pagecache still uses ext2_write_begin. Would have to rework
+        * directory handling code to pass around offsets rather than struct
+        * pages in order to make this work easily.
+        */
+       return nobh_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
+                                                       ext2_get_block);
 }
 
 static int ext2_nobh_writepage(struct page *page,
@@ -689,8 +706,8 @@ const struct address_space_operations ext2_aops = {
        .readpages              = ext2_readpages,
        .writepage              = ext2_writepage,
        .sync_page              = block_sync_page,
-       .prepare_write          = ext2_prepare_write,
-       .commit_write           = generic_commit_write,
+       .write_begin            = ext2_write_begin,
+       .write_end              = generic_write_end,
        .bmap                   = ext2_bmap,
        .direct_IO              = ext2_direct_IO,
        .writepages             = ext2_writepages,
@@ -707,8 +724,8 @@ const struct address_space_operations ext2_nobh_aops = {
        .readpages              = ext2_readpages,
        .writepage              = ext2_nobh_writepage,
        .sync_page              = block_sync_page,
-       .prepare_write          = ext2_nobh_prepare_write,
-       .commit_write           = nobh_commit_write,
+       .write_begin            = ext2_nobh_write_begin,
+       .write_end              = nobh_write_end,
        .bmap                   = ext2_bmap,
        .direct_IO              = ext2_direct_IO,
        .writepages             = ext2_writepages,
@@ -925,7 +942,8 @@ void ext2_truncate (struct inode * inode)
        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);
+               nobh_truncate_page(inode->i_mapping,
+                               inode->i_size, ext2_get_block);
        else
                block_truncate_page(inode->i_mapping,
                                inode->i_size, ext2_get_block);
@@ -1010,7 +1028,7 @@ static struct ext2_inode *ext2_get_inode(struct super_block *sb, ino_t ino,
                goto Einval;
 
        block_group = (ino - 1) / EXT2_INODES_PER_GROUP(sb);
-       gdp = ext2_get_group_desc(sb, block_group, &bh);
+       gdp = ext2_get_group_desc(sb, block_group, NULL);
        if (!gdp)
                goto Egdp;
        /*
@@ -1055,6 +1073,25 @@ void ext2_set_inode_flags(struct inode *inode)
                inode->i_flags |= S_DIRSYNC;
 }
 
+/* Propagate flags from i_flags to EXT2_I(inode)->i_flags */
+void ext2_get_inode_flags(struct ext2_inode_info *ei)
+{
+       unsigned int flags = ei->vfs_inode.i_flags;
+
+       ei->i_flags &= ~(EXT2_SYNC_FL|EXT2_APPEND_FL|
+                       EXT2_IMMUTABLE_FL|EXT2_NOATIME_FL|EXT2_DIRSYNC_FL);
+       if (flags & S_SYNC)
+               ei->i_flags |= EXT2_SYNC_FL;
+       if (flags & S_APPEND)
+               ei->i_flags |= EXT2_APPEND_FL;
+       if (flags & S_IMMUTABLE)
+               ei->i_flags |= EXT2_IMMUTABLE_FL;
+       if (flags & S_NOATIME)
+               ei->i_flags |= EXT2_NOATIME_FL;
+       if (flags & S_DIRSYNC)
+               ei->i_flags |= EXT2_DIRSYNC_FL;
+}
+
 void ext2_read_inode (struct inode * inode)
 {
        struct ext2_inode_info *ei = EXT2_I(inode);
@@ -1079,9 +1116,9 @@ void ext2_read_inode (struct inode * inode)
        }
        inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
        inode->i_size = le32_to_cpu(raw_inode->i_size);
-       inode->i_atime.tv_sec = le32_to_cpu(raw_inode->i_atime);
-       inode->i_ctime.tv_sec = le32_to_cpu(raw_inode->i_ctime);
-       inode->i_mtime.tv_sec = le32_to_cpu(raw_inode->i_mtime);
+       inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
+       inode->i_ctime.tv_sec = (signed)le32_to_cpu(raw_inode->i_ctime);
+       inode->i_mtime.tv_sec = (signed)le32_to_cpu(raw_inode->i_mtime);
        inode->i_atime.tv_nsec = inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec = 0;
        ei->i_dtime = le32_to_cpu(raw_inode->i_dtime);
        /* We now have enough fields to check if the inode was active or not.
@@ -1188,6 +1225,7 @@ static int ext2_update_inode(struct inode * inode, int do_sync)
        if (ei->i_state & EXT2_STATE_NEW)
                memset(raw_inode, 0, EXT2_SB(sb)->s_inode_size);
 
+       ext2_get_inode_flags(ei);
        raw_inode->i_mode = cpu_to_le16(inode->i_mode);
        if (!(test_opt(sb, NO_UID32))) {
                raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid));