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(parent: 97daf8b) | patch
ovl: use a minimal buffer in ovl_copy_xattr
authorVito Caputo <vito.caputo@coreos.com>
Sat, 24 Oct 2015 12:19:46 +0000 (07:19 -0500)
committerMiklos Szeredi <miklos@szeredi.hu>
Tue, 10 Nov 2015 16:08:42 +0000 (17:08 +0100)
commite4ad29fa0d224d05e08b2858e65f112fd8edd4fe
treef0c3477a1614df70e2b6f0a3bb26513c7c5f249dtree | snapshot
parent97daf8b97ad6f913a34c82515be64dc9ac08d63ecommit | diff
ovl: use a minimal buffer in ovl_copy_xattr

Rather than always allocating the high-order XATTR_SIZE_MAX buffer
which is costly and prone to failure, only allocate what is needed and
realloc if necessary.

Fixes https://github.com/coreos/bugs/issues/489

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Cc: <stable@vger.kernel.org>
fs/overlayfs/copy_up.c diff | blob | history
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