ext4: Adjust minlen with discard_granularity in the FITRIM ioctl
Discard granularity tells us the minimum size of extent that can be discarded by the device. If the user supplies a minimum extent that should be discarded (range.minlen) which is smaller than the discard granularity, increase minlen to the discard granularity, since there's no point submitting trim requests that the device will reject anyway. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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@ -348,6 +348,8 @@ mext_out:
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sizeof(range)))
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return -EFAULT;
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range.minlen = max((unsigned int)range.minlen,
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q->limits.discard_granularity);
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ret = ext4_trim_fs(sb, &range);
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if (ret < 0)
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return ret;
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