Revision fc32a72d block/raw-posix.c
| b/block/raw-posix.c | ||
|---|---|---|
| 185 | 185 |
} |
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#endif |
| 187 | 187 |
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#ifdef CONFIG_LINUX_AIO |
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static int raw_set_aio(void **aio_ctx, int *use_aio, int bdrv_flags) |
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{
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int ret = -1; |
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assert(aio_ctx != NULL); |
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assert(use_aio != NULL); |
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/* |
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* Currently Linux do AIO only for files opened with O_DIRECT |
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* specified so check NOCACHE flag too |
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*/ |
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if ((bdrv_flags & (BDRV_O_NOCACHE|BDRV_O_NATIVE_AIO)) == |
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(BDRV_O_NOCACHE|BDRV_O_NATIVE_AIO)) {
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|
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/* if non-NULL, laio_init() has already been run */ |
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if (*aio_ctx == NULL) {
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*aio_ctx = laio_init(); |
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if (!*aio_ctx) {
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goto error; |
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} |
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} |
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*use_aio = 1; |
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} else {
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*use_aio = 0; |
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} |
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ret = 0; |
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error: |
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return ret; |
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} |
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#endif |
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|
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static int raw_open_common(BlockDriverState *bs, const char *filename, |
| 189 | 221 |
int bdrv_flags, int open_flags) |
| 190 | 222 |
{
|
| ... | ... | |
| 240 | 272 |
} |
| 241 | 273 |
|
| 242 | 274 |
#ifdef CONFIG_LINUX_AIO |
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/* |
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* Currently Linux do AIO only for files opened with O_DIRECT |
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* specified so check NOCACHE flag too |
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*/ |
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if ((bdrv_flags & (BDRV_O_NOCACHE|BDRV_O_NATIVE_AIO)) == |
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(BDRV_O_NOCACHE|BDRV_O_NATIVE_AIO)) {
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|
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s->aio_ctx = laio_init(); |
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if (!s->aio_ctx) {
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goto out_free_buf; |
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} |
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s->use_aio = 1; |
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} else |
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#endif |
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{
|
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#ifdef CONFIG_LINUX_AIO |
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s->use_aio = 0; |
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#endif |
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if (raw_set_aio(&s->aio_ctx, &s->use_aio, bdrv_flags)) {
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goto out_close; |
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| 261 | 277 |
} |
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#endif |
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| 262 | 279 |
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#ifdef CONFIG_XFS |
| 264 | 281 |
if (platform_test_xfs_fd(s->fd)) {
|
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