The patch titled Subject: tmpfs: ZERO_RANGE and COLLAPSE_RANGE not currently supported has been added to the -mm tree. Its filename is tmpfs-zero_range-and-collapse_range-not-currently-supported.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/tmpfs-zero_range-and-collapse_range-not-currently-supported.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/tmpfs-zero_range-and-collapse_range-not-currently-supported.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: Hugh Dickins <hughd@xxxxxxxxxx> Subject: tmpfs: ZERO_RANGE and COLLAPSE_RANGE not currently supported I was well aware of FALLOC_FL_ZERO_RANGE and FALLOC_FL_COLLAPSE_RANGE support being added to fallocate(); but didn't realize until now that I had been too stupid to future-proof shmem_fallocate() against new additions. -EOPNOTSUPP instead of going on to ordinary fallocation. Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> [3.15] Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/shmem.c | 3 +++ 1 file changed, 3 insertions(+) diff -puN mm/shmem.c~tmpfs-zero_range-and-collapse_range-not-currently-supported mm/shmem.c --- a/mm/shmem.c~tmpfs-zero_range-and-collapse_range-not-currently-supported +++ a/mm/shmem.c @@ -1724,6 +1724,9 @@ static long shmem_fallocate(struct file pgoff_t start, index, end; int error; + if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) + return -EOPNOTSUPP; + mutex_lock(&inode->i_mutex); if (mode & FALLOC_FL_PUNCH_HOLE) { _ Patches currently in -mm which might be from hughd@xxxxxxxxxx are tmpfs-zero_range-and-collapse_range-not-currently-supported.patch mm-memoryc-use-entry-=-access_oncepte-in-handle_pte_fault.patch list-use-argument-hlist_add_after-names-from-rcu-variant.patch list-fix-order-of-arguments-for-hlist_add_after_rcu.patch klist-use-same-naming-scheme-as-hlist-for-klist_add_after.patch mm-replace-remap_file_pages-syscall-with-emulation-fix-3.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