aboutsummaryrefslogtreecommitdiff
path: root/CREDITS
diff options
context:
space:
mode:
authorEric Biederman <ebiederm@xmission.com>2009-02-18 14:48:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-18 15:37:53 -0800
commit8f19d472935c83d823fa4cf02bcc0a7b9952db30 (patch)
tree25cabc0b48ad0acb05fa69f92de617cf588fec8d /CREDITS
parent55ec82176eca52e4e0530a82a0eb59160a1a95a1 (diff)
downloadlinux-linaro-stable-8f19d472935c83d823fa4cf02bcc0a7b9952db30.tar.gz
seq_file: properly cope with pread
Currently seq_read assumes that the offset passed to it is always the offset it passed to user space. In the case pread this assumption is broken and we do the wrong thing when presented with pread. To solve this I introduce an offset cache inside of struct seq_file so we know where our logical file position is. Then in seq_read if we try to read from another offset we reset our data structures and attempt to go to the offset user space wanted. [akpm@linux-foundation.org: restore FMODE_PWRITE] [pjt@google.com: seq_open needs its fmode opened up to take advantage of this] Signed-off-by: Eric Biederman <ebiederm@xmission.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Paul Turner <pjt@google.com> Cc: <stable@kernel.org> [2.6.25.x, 2.6.26.x, 2.6.27.x, 2.6.28.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'CREDITS')
0 files changed, 0 insertions, 0 deletions