1. 11 Jan, 2016 1 commit
  2. 31 Dec, 2015 1 commit
  3. 16 Dec, 2015 1 commit
  4. 04 Dec, 2015 2 commits
  5. 12 Oct, 2015 1 commit
    • Jaegeuk Kim's avatar
      f2fs: set GFP_NOFS for grab_cache_page · a56c7c6f
      Jaegeuk Kim authored
      For normal inodes, their pages are allocated with __GFP_FS, which can cause
      filesystem calls when reclaiming memory.
      This can incur a dead lock condition accordingly.
      
      So, this patch addresses this problem by introducing
      f2fs_grab_cache_page(.., bool for_write), which calls
      grab_cache_page_write_begin() with AOP_FLAG_NOFS.
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      a56c7c6f
  6. 09 Oct, 2015 1 commit
    • Jaegeuk Kim's avatar
      f2fs crypto: allocate buffer for decrypting filename · 569cf187
      Jaegeuk Kim authored
      We got dentry pages from high_mem, and its address space directly goes into the
      decryption path via f2fs_fname_disk_to_usr.
      But, sg_init_one assumes the address is not from high_mem, so we can get this
      panic since it doesn't call kmap_high but kunmap_high is triggered at the end.
      
      kernel BUG at ../../../../../../kernel/mm/highmem.c:290!
      Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
      ...
       (kunmap_high+0xb0/0xb8) from [<c0114534>] (__kunmap_atomic+0xa0/0xa4)
       (__kunmap_atomic+0xa0/0xa4) from [<c035f028>] (blkcipher_walk_done+0x128/0x1ec)
       (blkcipher_walk_done+0x128/0x1ec) from [<c0366c24>] (crypto_cbc_decrypt+0xc0/0x170)
       (crypto_cbc_decrypt+0xc0/0x170) from [<c0367148>] (crypto_cts_decrypt+0xc0/0x114)
       (crypto_cts_decrypt+0xc0/0x114) from [<c035ea98>] (async_decrypt+0x40/0x48)
       (async_decrypt+0x40/0x48) from [<c032ca34>] (f2fs_fname_disk_to_usr+0x124/0x304)
       (f2fs_fname_disk_to_usr+0x124/0x304) from [<c03056fc>] (f2fs_fill_dentries+0xac/0x188)
       (f2fs_fill_dentries+0xac/0x188) from [<c03059c8>] (f2fs_readdir+0x1f0/0x300)
       (f2fs_readdir+0x1f0/0x300) from [<c0218054>] (vfs_readdir+0x90/0xb4)
       (vfs_readdir+0x90/0xb4) from [<c0218418>] (SyS_getdents64+0x64/0xcc)
       (SyS_getdents64+0x64/0xcc) from [<c0105ba0>] (ret_fast_syscall+0x0/0x30)
      
      Cc: <stable@vger.kernel.org>
      Reviewed-by: default avatarChao Yu <chao2.yu@samsung.com>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      569cf187
  7. 20 Aug, 2015 1 commit
    • Chao Yu's avatar
      f2fs: avoid clear valid page · 206e61be
      Chao Yu authored
      In f2fs_delete_entry, if last dirent is remove from the dentry page,
      we will try to punch that page since it has no valid date in it.
      
      But truncate_hole which is used for punching could fail because of
      no memory or IO error, if that happened, we'd better skip clearing
      this valid dentry page.
      Signed-off-by: default avatarChao Yu <chao2.yu@samsung.com>
      Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
      206e61be
  8. 01 Jun, 2015 2 commits
  9. 28 May, 2015 6 commits
  10. 10 Apr, 2015 6 commits
  11. 03 Mar, 2015 1 commit
  12. 10 Jan, 2015 1 commit
  13. 24 Nov, 2014 1 commit
  14. 04 Nov, 2014 10 commits
  15. 16 Sep, 2014 1 commit
  16. 09 Sep, 2014 1 commit
  17. 04 Sep, 2014 1 commit
  18. 21 Aug, 2014 1 commit
  19. 19 Aug, 2014 1 commit