Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d56e03cd275486eb8141116a7af2df7457cb0115
Commit: d56e03cd275486eb8141116a7af2df7457cb0115
Parent: 8da38d7bac802ed2a09a79aaae9961c806a1847c
Author: David Howells <[EMAIL PROTECTED]>
AuthorDate: Thu Mar 22 00:11:23 2007 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Thu Mar 22 19:39:05 2007 -0700
[PATCH] NOMMU: supply get_unmapped_area() to fix NOMMU SYSV SHM
Supply a get_unmapped_area() to fix NOMMU SYSV SHM support.
Signed-off-by: David Howells <[EMAIL PROTECTED]>
Acked-by: Adam Litke <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
mm/nommu.c | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/mm/nommu.c b/mm/nommu.c
index 23fb033..ba6df4d 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1193,6 +1193,28 @@ void unmap_mapping_range(struct address_space *mapping,
EXPORT_SYMBOL(unmap_mapping_range);
/*
+ * ask for an unmapped area at which to create a mapping on a file
+ */
+unsigned long get_unmapped_area(struct file *file, unsigned long addr,
+ unsigned long len, unsigned long pgoff,
+ unsigned long flags)
+{
+ unsigned long (*get_area)(struct file *, unsigned long, unsigned long,
+ unsigned long, unsigned long);
+
+ get_area = current->mm->get_unmapped_area;
+ if (file && file->f_op && file->f_op->get_unmapped_area)
+ get_area = file->f_op->get_unmapped_area;
+
+ if (!get_area)
+ return -ENOSYS;
+
+ return get_area(file, addr, len, pgoff, flags);
+}
+
+EXPORT_SYMBOL(get_unmapped_area);
+
+/*
* Check that a process has enough memory to allocate a new virtual
* mapping. 0 means there is enough memory for the allocation to
* succeed and -ENOMEM implies there is not.
-
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