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authorSouptick Joarder <jrdr.linux@gmail.com>2018-06-08 03:09:17 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-08 03:34:37 +0300
commit20acce679910fb6d30a89fa02586a3b4a134dfeb (patch)
tree0b3d8b90596946d27bf218b3f5c184412a4ea370
parent325d7d4a968669bec18c054db6b5de5f4fc82874 (diff)
downloadlinux-20acce679910fb6d30a89fa02586a3b4a134dfeb.tar.xz
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 <jrdr.linux@gmail.com> Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com> Cc: Hugh Dickins <hughd@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/shmem.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 9a1b553e30e0..2b686e3f53ad 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;
}