if (vma && ((vma->vm_flags & VM_NOHUGEPAGE) ||
test_bit(MMF_DISABLE_THP, &vma->vm_mm->flags)))
return false;
- if (shmem_huge_force)
- return true;
- if (shmem_huge == SHMEM_HUGE_FORCE)
- return true;
if (shmem_huge == SHMEM_HUGE_DENY)
return false;
+ if (shmem_huge_force || shmem_huge == SHMEM_HUGE_FORCE)
+ return true;
switch (SHMEM_SB(inode->i_sb)->huge) {
case SHMEM_HUGE_ALWAYS:
index++;
}
+ /*
+ * When undoing a failed fallocate, we want none of the partial folio
+ * zeroing and splitting below, but shall want to truncate the whole
+ * folio when !uptodate indicates that it was added by this fallocate,
+ * even when [lstart, lend] covers only a part of the folio.
+ */
+ if (unfalloc)
+ goto whole_folios;
+
same_folio = (lstart >> PAGE_SHIFT) == (lend >> PAGE_SHIFT);
folio = shmem_get_partial_folio(inode, lstart >> PAGE_SHIFT);
if (folio) {
folio_put(folio);
}
+whole_folios:
+
index = start;
while (index < end) {
cond_resched();
.name = "tmpfs",
.init_fs_context = ramfs_init_fs_context,
.parameters = ramfs_fs_parameters,
- .kill_sb = kill_litter_super,
+ .kill_sb = ramfs_kill_sb,
.fs_flags = FS_USERNS_MOUNT,
};