block.c (ad31cd4c6945d7e0f0546d92d29dcd12325b4e4a) block.c (2f0342efdbb0a3c5b5a6a4f4831cbe90c445510b)
1/*
2 * QEMU System Emulator block driver
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights

--- 2823 unchanged lines hidden (view full) ---

2832
2833 return false;
2834}
2835
2836bool bdrv_can_write_zeroes_with_unmap(BlockDriverState *bs)
2837{
2838 BlockDriverInfo bdi;
2839
1/*
2 * QEMU System Emulator block driver
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights

--- 2823 unchanged lines hidden (view full) ---

2832
2833 return false;
2834}
2835
2836bool bdrv_can_write_zeroes_with_unmap(BlockDriverState *bs)
2837{
2838 BlockDriverInfo bdi;
2839
2840 if (bs->backing || !(bs->open_flags & BDRV_O_UNMAP)) {
2840 if (!(bs->open_flags & BDRV_O_UNMAP)) {
2841 return false;
2842 }
2843
2844 if (bdrv_get_info(bs, &bdi) == 0) {
2845 return bdi.can_write_zeroes_with_unmap;
2846 }
2847
2848 return false;

--- 1073 unchanged lines hidden --- 		2841 return false;
2842 }
2843
2844 if (bdrv_get_info(bs, &bdi) == 0) {
2845 return bdi.can_write_zeroes_with_unmap;
2846 }
2847
2848 return false;

--- 1073 unchanged lines hidden ---