linux.git/fs/xattr.c, branch v4.1 Linux kernel source tree new helper: audit_file() 2014-11-19T18:01:26+00:00 Al Viro viro@zeniv.linux.org.uk 2014-10-31T21:44:57+00:00 9f45f5bf302daad6835ce64701fb3c286a2cc6af ... for situations when we don't have any candidate in pathnames - basically, in descriptor-based syscalls. [Folded the build fix for !CONFIG_AUDITSYSCALL configs from Chen Gang] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
... for situations when we don't have any candidate in pathnames - basically,
in descriptor-based syscalls.

[Folded the build fix for !CONFIG_AUDITSYSCALL configs from Chen Gang]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
vfs: Deduplicate code shared by xattr system calls operating on paths 2014-10-12T21:09:10+00:00 Eric Biggers ebiggers3@gmail.com 2014-10-12T16:59:58+00:00 8cc431165d8fbda43634dd15ab17f76a151c39a8 The following pairs of system calls dealing with extended attributes only differ in their behavior on whether the symbolic link is followed (when the named file is a symbolic link): - setxattr() and lsetxattr() - getxattr() and lgetxattr() - listxattr() and llistxattr() - removexattr() and lremovexattr() Despite this, the implementations all had duplicated code, so this commit redirects each of the above pairs of system calls to a corresponding function to which different lookup flags (LOOKUP_FOLLOW or 0) are passed. For me this reduced the stripped size of xattr.o from 8824 to 8248 bytes. Signed-off-by: Eric Biggers <ebiggers3@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
The following pairs of system calls dealing with extended attributes only
differ in their behavior on whether the symbolic link is followed (when
the named file is a symbolic link):

- setxattr() and lsetxattr()
- getxattr() and lgetxattr()
- listxattr() and llistxattr()
- removexattr() and lremovexattr()

Despite this, the implementations all had duplicated code, so this commit
redirects each of the above pairs of system calls to a corresponding
function to which different lookup flags (LOOKUP_FOLLOW or 0) are passed.

For me this reduced the stripped size of xattr.o from 8824 to 8248 bytes.

Signed-off-by: Eric Biggers <ebiggers3@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
simple_xattr: permit 0-size extended attributes 2014-07-23T22:10:55+00:00 Hugh Dickins hughd@google.com 2014-07-23T21:00:17+00:00 4e66d445d0421a159135572a0ba44b75c7c4adfa If a filesystem uses simple_xattr to support user extended attributes, LTP setxattr01 and xfstests generic/062 fail with "Cannot allocate memory": simple_xattr_alloc()'s wrap-around test mistakenly excludes values of zero size. Fix that off-by-one (but apparently no filesystem needs them yet). Signed-off-by: Hugh Dickins <hughd@google.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Jeff Layton <jlayton@poochiereds.net> Cc: Aristeu Rozanski <aris@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
If a filesystem uses simple_xattr to support user extended attributes,
LTP setxattr01 and xfstests generic/062 fail with "Cannot allocate
memory": simple_xattr_alloc()'s wrap-around test mistakenly excludes
values of zero size.  Fix that off-by-one (but apparently no filesystem
needs them yet).

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Jeff Layton <jlayton@poochiereds.net>
Cc: Aristeu Rozanski <aris@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
vfs: make lremovexattr retry once on ESTALE error 2012-12-20T23:50:11+00:00 Jeff Layton jlayton@redhat.com 2012-12-11T17:10:18+00:00 b729d75d19777a5dd34672020516eada43ff026f Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
vfs: make removexattr retry once on ESTALE 2012-12-20T23:50:10+00:00 Jeff Layton jlayton@redhat.com 2012-12-11T17:10:17+00:00 12f06212990400db1b54bd7b49b7f6f5f1b32469 Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
vfs: make llistxattr retry once on ESTALE error 2012-12-20T23:50:10+00:00 Jeff Layton jlayton@redhat.com 2012-12-11T17:10:17+00:00 bd9bbc9842bde1b14046cdbda1153f0d49061135 Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
vfs: make listxattr retry once on ESTALE error 2012-12-20T23:50:10+00:00 Jeff Layton jlayton@redhat.com 2012-12-11T17:10:16+00:00 10a90cf36efe0fca5c7719fd9b0299abd6be51aa Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
vfs: make lgetxattr retry once on ESTALE 2012-12-20T23:50:09+00:00 Jeff Layton jlayton@redhat.com 2012-12-11T17:10:16+00:00 3a3e159dbfe405517584b09bbcefd72115d93342 Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
vfs: make getxattr retry once on an ESTALE error 2012-12-20T23:50:09+00:00 Jeff Layton jlayton@redhat.com 2012-12-11T17:10:16+00:00 60e66b48ca20819d97ec4851007accc0b013985a Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
vfs: allow lsetxattr() to retry once on ESTALE errors 2012-12-20T23:50:09+00:00 Jeff Layton jlayton@redhat.com 2012-12-11T17:10:15+00:00 49e09e1cc576daa99ea22f3a3c699062c34f8c0f Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>