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src/basic/missing_loop.h: fix missing LOOP_SET_BLOCK_SIZE
Builds with kernels headers < 4.14 fail with: ../src/shared/loop-util.c: In function ‘loop_configure_fallback’: ../src/shared/loop-util.c:237:31: error: ‘LOOP_SET_BLOCK_SIZE’ undeclared (first use in this function); did you mean ‘LOOP_SET_DIRECT_IO’? if (ioctl(fd, LOOP_SET_BLOCK_SIZE, (unsigned long) c->block_size) < 0) ^~~~~~~~~~~~~~~~~~~ LOOP_SET_DIRECT_IO Fixes: https://github.com/systemd/systemd/issues/33341 Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
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@ -29,3 +29,7 @@ assert_cc(LOOP_SET_DIRECT_IO == 0x4C08);
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#ifndef LOOP_SET_STATUS_SETTABLE_FLAGS
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# define LOOP_SET_STATUS_SETTABLE_FLAGS (LO_FLAGS_AUTOCLEAR | LO_FLAGS_PARTSCAN)
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#endif
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#ifndef LOOP_SET_BLOCK_SIZE
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# define LOOP_SET_BLOCK_SIZE 0x4C09
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#endif
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