The patch titled Subject: fs/namespace: convert devname allocation to kstrdup_const has been added to the -mm tree. Its filename is fs-namespace-convert-devname-allocation-to-kstrdup_const.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/fs-namespace-convert-devname-allocation-to-kstrdup_const.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/fs-namespace-convert-devname-allocation-to-kstrdup_const.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Andrzej Hajda <a.hajda@xxxxxxxxxxx> Subject: fs/namespace: convert devname allocation to kstrdup_const VFS frequently performs duplication of strings located in read-only memory section. Replacing kstrdup by kstrdup_const allows to avoid such operations. Signed-off-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx> Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx> Cc: Mike Turquette <mturquette@xxxxxxxxxx> Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> Cc: Christoph Lameter <cl@xxxxxxxxx> Cc: Pekka Enberg <penberg@xxxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> Cc: Tejun Heo <tj@xxxxxxxxxx> Cc: Greg KH <greg@xxxxxxxxx> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- fs/namespace.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff -puN fs/namespace.c~fs-namespace-convert-devname-allocation-to-kstrdup_const fs/namespace.c --- a/fs/namespace.c~fs-namespace-convert-devname-allocation-to-kstrdup_const +++ a/fs/namespace.c @@ -201,7 +201,7 @@ static struct mount *alloc_vfsmnt(const goto out_free_cache; if (name) { - mnt->mnt_devname = kstrdup(name, GFP_KERNEL); + mnt->mnt_devname = kstrdup_const(name, GFP_KERNEL); if (!mnt->mnt_devname) goto out_free_id; } @@ -234,7 +234,7 @@ static struct mount *alloc_vfsmnt(const #ifdef CONFIG_SMP out_free_devname: - kfree(mnt->mnt_devname); + kfree_const(mnt->mnt_devname); #endif out_free_id: mnt_free_id(mnt); @@ -568,7 +568,7 @@ int sb_prepare_remount_readonly(struct s static void free_vfsmnt(struct mount *mnt) { - kfree(mnt->mnt_devname); + kfree_const(mnt->mnt_devname); #ifdef CONFIG_SMP free_percpu(mnt->mnt_pcp); #endif _ Patches currently in -mm which might be from a.hajda@xxxxxxxxxxx are mm-util-add-kstrdup_const.patch kernfs-convert-node-name-allocation-to-kstrdup_const.patch clk-convert-clock-name-allocations-to-kstrdup_const.patch mm-slab-convert-cache-name-allocations-to-kstrdup_const.patch fs-namespace-convert-devname-allocation-to-kstrdup_const.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html