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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-16 11:07:59 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-16 11:07:59 +1000 |
| commit | 84c3d4aaec3338201b449034beac41635866bddf (patch) | |
| tree | 3412951682fb2dd4feb8a5532f8efbaf8b345933 /fs/ext4/file.c | |
| parent | 43d2548bb2ef7e6d753f91468a746784041e522d (diff) | |
| parent | fafa3a3f16723997f039a0193997464d66dafd8f (diff) | |
Merge commit 'origin/master'
Manual merge of:
arch/powerpc/Kconfig
arch/powerpc/kernel/stacktrace.c
arch/powerpc/mm/slice.c
arch/ppc/kernel/smp.c
Diffstat (limited to 'fs/ext4/file.c')
| -rw-r--r-- | fs/ext4/file.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 4159be6366a..430eb7978db 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -123,6 +123,23 @@ force_commit: return ret; } +static struct vm_operations_struct ext4_file_vm_ops = { + .fault = filemap_fault, + .page_mkwrite = ext4_page_mkwrite, +}; + +static int ext4_file_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct address_space *mapping = file->f_mapping; + + if (!mapping->a_ops->readpage) + return -ENOEXEC; + file_accessed(file); + vma->vm_ops = &ext4_file_vm_ops; + vma->vm_flags |= VM_CAN_NONLINEAR; + return 0; +} + const struct file_operations ext4_file_operations = { .llseek = generic_file_llseek, .read = do_sync_read, @@ -133,7 +150,7 @@ const struct file_operations ext4_file_operations = { #ifdef CONFIG_COMPAT .compat_ioctl = ext4_compat_ioctl, #endif - .mmap = generic_file_mmap, + .mmap = ext4_file_mmap, .open = generic_file_open, .release = ext4_release_file, .fsync = ext4_sync_file, @@ -144,6 +161,7 @@ const struct file_operations ext4_file_operations = { const struct inode_operations ext4_file_inode_operations = { .truncate = ext4_truncate, .setattr = ext4_setattr, + .getattr = ext4_getattr, #ifdef CONFIG_EXT4DEV_FS_XATTR .setxattr = generic_setxattr, .getxattr = generic_getxattr, |