linux/fs, branch v3.7-rc1

Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2012-10-14T20:39:34Z

Pull module signing support from Rusty Russell: "module signing is the highlight, but it's an all-over David Howells frenzy..." Hmm "Magrathea: Glacier signing key". Somebody has been reading too much HHGTTG. * 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (37 commits) X.509: Fix indefinite length element skip error handling X.509: Convert some printk calls to pr_devel asymmetric keys: fix printk format warning MODSIGN: Fix 32-bit overflow in X.509 certificate validity date checking MODSIGN: Make mrproper should remove generated files. MODSIGN: Use utf8 strings in signer's name in autogenerated X.509 certs MODSIGN: Use the same digest for the autogen key sig as for the module sig MODSIGN: Sign modules during the build process MODSIGN: Provide a script for generating a key ID from an X.509 cert MODSIGN: Implement module signature checking MODSIGN: Provide module signing public keys to the kernel MODSIGN: Automatically generate module signing keys if missing MODSIGN: Provide Kconfig options MODSIGN: Provide gitignore and make clean rules for extra files MODSIGN: Add FIPS policy module: signature checking hook X.509: Add a crypto key parser for binary (DER) X.509 certificates MPILIB: Provide a function to read raw data into an MPI X.509: Add an ASN.1 decoder X.509: Add simple ASN.1 grammar compiler ...

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2012-10-13T20:23:39Z

Pull user namespace compile fixes from Eric W Biederman: "This tree contains three trivial fixes. One compiler warning, one thinko fix, and one build fix" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: btrfs: Fix compilation with user namespace support enabled userns: Fix posix_acl_file_xattr_userns gid conversion userns: Properly print bluetooth socket uids

Merge branch 'for-3.7' of git://linux-nfs.org/~bfields/linux

2012-10-13T01:53:54Z

Pull nfsd update from J Bruce Fields: "Another relatively quiet cycle. There was some progress on my remaining 4.1 todo's, but a couple of them were just of the form "check that we do X correctly", so didn't have much affect on the code. Other than that, a bunch of cleanup and some bugfixes (including an annoying NFSv4.0 state leak and a busy-loop in the server that could cause it to peg the CPU without making progress)." * 'for-3.7' of git://linux-nfs.org/~bfields/linux: (46 commits) UAPI: (Scripted) Disintegrate include/linux/sunrpc UAPI: (Scripted) Disintegrate include/linux/nfsd nfsd4: don't allow reclaims of expired clients nfsd4: remove redundant callback probe nfsd4: expire old client earlier nfsd4: separate session allocation and initialization nfsd4: clean up session allocation nfsd4: minor free_session cleanup nfsd4: new_conn_from_crses should only allocate nfsd4: separate connection allocation and initialization nfsd4: reject bad forechannel attrs earlier nfsd4: enforce per-client sessions/no-sessions distinction nfsd4: set cl_minorversion at create time nfsd4: don't pin clientids to pseudoflavors nfsd4: fix bind_conn_to_session xdr comment nfsd4: cast readlink() bug argument NFSD: pass null terminated buf to kstrtouint() nfsd: remove duplicate init in nfsd4_cb_recall nfsd4: eliminate redundant nfs4_free_stateid fs/nfsd/nfs4idmap.c: adjust inconsistent IS_ERR and PTR_ERR ...

procfs: don't need a PATH_MAX allocation to hold a string representation of an int

2012-10-13T00:15:10Z

Signed-off-by: Jeff Layton Signed-off-by: Al Viro

vfs: embed struct filename inside of names_cache allocation if possible

2012-10-13T00:15:10Z

In the common case where a name is much smaller than PATH_MAX, an extra allocation for struct filename is unnecessary. Before allocating a separate one, try to embed the struct filename inside the buffer first. If it turns out that that's not long enough, then fall back to allocating a separate struct filename and redoing the copy. Signed-off-by: Jeff Layton Signed-off-by: Al Viro

audit: make audit_inode take struct filename

2012-10-13T00:15:09Z

Keep a pointer to the audit_names "slot" in struct filename. Have all of the audit_inode callers pass a struct filename ponter to audit_inode instead of a string pointer. If the aname field is already populated, then we can skip walking the list altogether and just use it directly. Signed-off-by: Jeff Layton Signed-off-by: Al Viro

vfs: make path_openat take a struct filename pointer

2012-10-13T00:15:09Z

...and fix up the callers. For do_file_open_root, just declare a struct filename on the stack and fill out the .name field. For do_filp_open, make it also take a struct filename pointer, and fix up its callers to call it appropriately. For filp_open, add a variant that takes a struct filename pointer and turn filp_open into a wrapper around it. Signed-off-by: Jeff Layton Signed-off-by: Al Viro

vfs: turn do_path_lookup into wrapper around struct filename variant

2012-10-13T00:15:08Z

...and make the user_path callers use that variant instead. Signed-off-by: Jeff Layton Signed-off-by: Al Viro

audit: allow audit code to satisfy getname requests from its names_list

2012-10-13T00:15:08Z

Currently, if we call getname() on a userland string more than once, we'll get multiple copies of the string and multiple audit_names records. Add a function that will allow the audit_names code to satisfy getname requests using info from the audit_names list, avoiding a new allocation and audit_names records. Signed-off-by: Jeff Layton Signed-off-by: Al Viro

vfs: define struct filename and have getname() return it

2012-10-13T00:14:55Z

getname() is intended to copy pathname strings from userspace into a kernel buffer. The result is just a string in kernel space. It would however be quite helpful to be able to attach some ancillary info to the string. For instance, we could attach some audit-related info to reduce the amount of audit-related processing needed. When auditing is enabled, we could also call getname() on the string more than once and not need to recopy it from userspace. This patchset converts the getname()/putname() interfaces to return a struct instead of a string. For now, the struct just tracks the string in kernel space and the original userland pointer for it. Later, we'll add other information to the struct as it becomes convenient. Signed-off-by: Jeff Layton Signed-off-by: Al Viro