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Groups > linux.kernel > #1298950
| From | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 2/2] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option |
| Date | 2015-12-29 12:10 +0100 |
| Message-ID | <qL0ka-824-27@gated-at.bofh.it> (permalink) |
| References | <qKYLo-6Xt-7@gated-at.bofh.it> <qKYV3-71t-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tuesday 29 December 2015 12:26:35 Yury Norov wrote: > All new 32-bit architectures should have 64-bit off_t type, but existing > architectures has 32-bit ones. > > To handle it, new config option is added to arch/Kconfig that defaults > ARCH_32BIT_OFF_T to be disabled for non-64 bit architectures. All existing > 32-bit architectures enable it explicitly here. > > New option affects force_o_largefile() behaviour. Namely, if off_t is > 64-bits long, we have no reason to reject user to open big files. > > Note that even if architectures has only 64-bit off_t in the kernel > (arc, c6x, h8300, hexagon, metag, nios2, openrisc, tile32 and unicore32), > a libc may use 32-bit off_t, and therefore want to limit the file size > to 4GB unless specified differently in the open flags. > > Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> > Acked-by: Arnd Bergmann <arnd@arndb.de> Should we merge the two patches through my asm-generic tree now, or should we keep them in the ilp32 series, any preferences? I think either way works. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH v2 0/2] ABI: handle 32-bit off_t for 32-bit and compat ABIs Yury Norov <ynorov@caviumnetworks.com> - 2015-12-29 10:30 +0100
[PATCH 2/2] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option Yury Norov <ynorov@caviumnetworks.com> - 2015-12-29 10:40 +0100
Re: [PATCH 2/2] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option Arnd Bergmann <arnd@arndb.de> - 2015-12-29 12:10 +0100
Re: [PATCH 2/2] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option Yury Norov <ynorov@caviumnetworks.com> - 2015-12-29 12:50 +0100
Re: [PATCH 2/2] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option Arnd Bergmann <arnd@arndb.de> - 2015-12-29 15:00 +0100
Re: [PATCH 2/2] 32-bit ABI: introduce ARCH_32BIT_OFF_T config option Thomas Gleixner <tglx@linutronix.de> - 2015-12-29 13:00 +0100
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