1. 02 Dec, 2021 19 commits
  2. 01 Dec, 2021 19 commits
  3. 30 Nov, 2021 2 commits
    • Warner Losh's avatar
      Remove DS_BUSY case · cbe9faa5
      Warner Losh authored
      DS_BUSY is no longer a device state. Remove it from here.
      
      Sponsored by:		Netflix
      cbe9faa5
    • Warner Losh's avatar
      Make device_busy/unbusy work w/o Giant held · 1c7d15b0
      Warner Losh authored
      The vast majority of the busy/unbusy users in the tree don't acquire
      Giant before calling device_busy/unbusy. However, if multiple threads
      are opening a file, say, that causes the device to busy/unbusy, then we
      can race to the root marking things busy. Move to using a reference
      count to keep track of how many times a device_t has been made busy. Use
      that count to make the same decisions that we'd make with the old device
      state.
      
      Note: gpiopps.c uses D_TRACKCLOSE. Others do as well. However, there's a
      known race with closes that will be corrected for all the drivers that
      do this in a future commit.
      
      Sponsored by:		Netflix
      Reviewed by:		hselasky, jhb
      Differential Revision:	https://reviews.freebsd.org/D26284
      1c7d15b0