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59b1842da1
This add frontend R/W mutual exclusion. Prior to this point in time it was possible to open both frontends simultaneously which an MFE card cannot support. In order to stop this, a delayed open is performed which has the following function: - Return EBUSY after a configurable amount of time if a frontend is unavailable due to the other being in use. - Only allow opening of a frontend if the kernel thread of the other has stopped. This solution was chosen to allow switching between frontends to work as seamlessly as possible. When both frontends are actually opened simultaneously then one will only open, but if quick switching is performed between one of many then the new open will succeed in a clean fashion rather than interrupting a kernel thread. Signed-off-by: Darron Broad <darron@kewl.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> |
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| acpi | ||
| asm-arm | ||
| asm-cris | ||
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| asm-m32r | ||
| asm-m68k | ||
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| asm-parisc | ||
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| crypto | ||
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| keys | ||
| linux | ||
| math-emu | ||
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| mtd | ||
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| Kbuild | ||