From: Souptick Joarder Date: Fri, 8 Jun 2018 00:09:17 +0000 (-0700) Subject: mm/shmem.c: use new return type vm_fault_t X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=20acce679910fb6d30a89fa02586a3b4a134dfeb;p=linux.git mm/shmem.c: use new return type vm_fault_t Use new return type vm_fault_t for fault handler. For now, this is just documenting that the function returns a VM_FAULT value rather than an errno. Once all instances are converted, vm_fault_t will become a distinct type. See commit 1c8f422059ae ("mm: change return type to vm_fault_t") vmf_error() is the newly introduce inline function in 4.17-rc6. Link: http://lkml.kernel.org/r/20180521202410.GA17912@jordon-HP-15-Notebook-PC Signed-off-by: Souptick Joarder Reviewed-by: Matthew Wilcox Cc: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/mm/shmem.c b/mm/shmem.c index 9a1b553e30e0e..2b686e3f53ad1 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1947,14 +1947,14 @@ static int synchronous_wake_function(wait_queue_entry_t *wait, unsigned mode, in return ret; } -static int shmem_fault(struct vm_fault *vmf) +static vm_fault_t shmem_fault(struct vm_fault *vmf) { struct vm_area_struct *vma = vmf->vma; struct inode *inode = file_inode(vma->vm_file); gfp_t gfp = mapping_gfp_mask(inode->i_mapping); enum sgp_type sgp; - int error; - int ret = VM_FAULT_LOCKED; + int err; + vm_fault_t ret = VM_FAULT_LOCKED; /* * Trinity finds that probing a hole which tmpfs is punching can @@ -2022,10 +2022,10 @@ static int shmem_fault(struct vm_fault *vmf) else if (vma->vm_flags & VM_HUGEPAGE) sgp = SGP_HUGE; - error = shmem_getpage_gfp(inode, vmf->pgoff, &vmf->page, sgp, + err = shmem_getpage_gfp(inode, vmf->pgoff, &vmf->page, sgp, gfp, vma, vmf, &ret); - if (error) - return ((error == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS); + if (err) + return vmf_error(err); return ret; }