ubi: fastmap: Allocate memory with GFP_NOFS in ubi_update_fastmap

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Function ubi_update_fastmap could be called in IO context, for example:
 ubifs_writepage
  do_writepage
   ubifs_jnl_write_data
    write_head
     ubifs_wbuf_write_nolock
      ubifs_leb_write
       ubi_leb_write
        ubi_eba_write_leb
	 try_write_vid_and_data
	  ubi_wl_get_peb
	   ubi_update_fastmap
	    erase_block

So it's better to allocate memory with GFP_NOFS mode, in case waiting
page writeback(dead loop).

Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

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Zhihao Cheng 2023-08-28 14:38:36 +08:00 • committed by Richard Weinberger

parent 08a4267874

commit a033ab4fec

1 changed files with 5 additions and 5 deletions

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drivers/mtd/ubi/fastmap.c

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