-
Notifications
You must be signed in to change notification settings - Fork 2.9k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
linuxkpi:
GFP_KERNEL
equals M_NOWAIT
now
... instead of `M_WAITOK`. [Why] The reason is that in some places in the DRM drivers (in particular, the framebuffer management code), kmalloc() is called from a non-sleepable context, such as after a call to mtx_lock(8) with an MTX_DEF mutex. If `GFP_KERNEL` is defined as `M_WAITOK`, we hit an assertion from witness(4). [How] The definition of `GFP_KERNEL` is changed to `M_NOWAIT`. This means that callers should verify the return value of kmalloc(). Fortunately, this is always the case in Linux. Reviewed by: bz, emaste, manu Approved by: manu Differential Revision: https://reviews.freebsd.org/D42054
- Loading branch information
Showing
6 changed files
with
24 additions
and
11 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters