fs: ocfs2: 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. Ref-> commit 1c8f4220 ("mm: change return type to vm_fault_t") vmf_error() is the newly introduce inline function in 4.18. Fix one checkpatch.pl warning by replacing BUG_ON() with WARN_ON() [akpm@linux-foundation.org: undo BUG_ON->WARN_ON change] Link: http://lkml.kernel.org/r/20180523153258.GA28451@jordon-HP-15-Notebook-PCSigned-off-by: NSouptick Joarder <jrdr.linux@gmail.com> Reviewed-by: NMatthew Wilcox <mawilcox@microsoft.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <jiangqi903@gmail.com> Cc: Changwei Ge <ge.changwei@h3c.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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