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author | Tejun Heo <tj@kernel.org> | 2013-02-27 17:03:53 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-27 19:10:14 -0800 |
commit | 12d1b4393e0d8df36b2646a5e512f0513fb532d2 (patch) | |
tree | a705b06b3d0ece29b0f34fedba87d18543ac1b80 /Makefile | |
parent | 49038ef4fbe2842bd4d8338f89ec5c9ba71b0ae1 (diff) | |
download | linux-12d1b4393e0d8df36b2646a5e512f0513fb532d2.tar.bz2 |
idr: remove _idr_rc_to_errno() hack
idr uses -1, IDR_NEED_TO_GROW and IDR_NOMORE_SPACE to communicate
exception conditions internally. The return value is later translated
to errno values using _idr_rc_to_errno().
This is confusing. Drop the custom ones and consistently use -EAGAIN
for "tree needs to grow", -ENOMEM for "need more memory" and -ENOSPC for
"ran out of ID space".
Due to the weird memory preloading mechanism, [ra]_get_new*() return
-EAGAIN on memory shortage, so we need to substitute -ENOMEM w/
-EAGAIN on those interface functions. They'll eventually be cleaned
up and the translations will go away.
This patch doesn't introduce any functional changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions