linux.git/mm/tiny-shmem.c, branch v2.6.26

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

2008-03-25T15:57:47+00:00

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  [PATCH] get stack footprint of pathname resolution back to relative sanity
  [PATCH] double iput() on failure exit in hugetlb
  [PATCH] double dput() on failure exit in tiny-shmem
  [PATCH] fix up new filp allocators
  [PATCH] check for null vfsmount in dentry_open()
  [PATCH] reiserfs: eliminate private use of struct file in xattr
  [PATCH] sanitize hppfs
  hppfs pass vfsmount to dentry_open()
  [PATCH] restore export of do_kern_mount()

mm/shmem and tiny-shmem: fix some kernel-doc

2008-03-20T01:53:35+00:00

Convert tiny-shmem.c function comments to kernel-doc.  Add parameters and
convert/fix other kernel-doc in shmem.c.

Signed-off-by: Randy Dunlap 
Cc: Hugh Dickins 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] double dput() on failure exit in tiny-shmem

2008-03-19T10:54:36+00:00

Signed-off-by: Al Viro

Remove unused code from mm/tiny-shmem.c

2008-02-05T17:44:17+00:00

This code in mm/tiny-shmem.c is under #if 0 - remove it.

Signed-off-by: Balbir Singh 
Acked-by: Matt Mackall 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

r/o bind mounts: filesystem helpers for custom 'struct file's

2007-10-17T15:43:04+00:00

Why do we need r/o bind mounts?

This feature allows a read-only view into a read-write filesystem.  In the
process of doing that, it also provides infrastructure for keeping track of
the number of writers to any given mount.

This has a number of uses.  It allows chroots to have parts of filesystems
writable.  It will be useful for containers in the future because users may
have root inside a container, but should not be allowed to write to
somefilesystems.  This also replaces patches that vserver has had out of the
tree for several years.

It allows security enhancement by making sure that parts of your filesystem
read-only (such as when you don't trust your FTP server), when you don't want
to have entire new filesystems mounted, or when you want atime selectively
updated.  I've been using the following script to test that the feature is
working as desired.  It takes a directory and makes a regular bind and a r/o
bind mount of it.  It then performs some normal filesystem operations on the
three directories, including ones that are expected to fail, like creating a
file on the r/o mount.

This patch:

Some filesystems forego the vfs and may_open() and create their own 'struct
file's.

This patch creates a couple of helper functions which can be used by these
filesystems, and will provide a unified place which the r/o bind mount code
may patch.

Also, rename an existing, static-scope init_file() to a less generic name.

Signed-off-by: Dave Hansen 
Cc: Christoph Hellwig 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] mm/{,tiny-}shmem.c cleanups

2007-03-01T22:53:35+00:00

shmem_{nopage,mmap} are no longer used in ipc/shm.c

Signed-off-by: Adrian Bunk 
Cc: "Eric W. Biederman" 
Cc: Hugh Dickins 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] struct path: convert mm

2006-12-08T16:28:47+00:00

Signed-off-by: Josef Sipek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree

2006-06-26T19:25:08+00:00

Also fixes up all files that #include it.

Signed-off-by: Greg Kroah-Hartman

[PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree

2006-06-26T19:25:06+00:00

Removes the devfs_mk_dir() function and all callers of it.

Signed-off-by: Greg Kroah-Hartman

[PATCH] do_truncate() call fix in tiny-shmem.c

2006-01-12T17:08:49+00:00

Adapt tiny-shmem.c to the new do_truncate() prototype.

Signed-off-by: Catalin Marinas 
Acked-by: Matt Mackall 
Acked-by: Hugh Dickins 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds